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Why James Hansen Is Wrong About Nuclear Power (thinkprogress.org)

mdsolar writes: Climatologist James Hansen argued last month, "Nuclear power paves the only viable path forward on climate change." He is wrong. As the Nuclear Energy Agency (NEA) and International Energy Agency (IEA) explained in a major report last year, in the best-case scenario, nuclear power can play a modest, but important, role in avoiding catastrophic global warming if it can solve its various nagging problems — particularly high construction cost — without sacrificing safety. Hansen and a handful of other climate scientists I also greatly respect — Ken Caldeira, Tom Wigley, and Kerry Emanuel — present a mostly handwaving argument in which new nuclear power achieves and sustains an unprecedented growth rate for decades. The one quantitative "illustrative scenario" they propose — "a total requirement of 115 reactors per year to 2050 to entirely decarbonise the global electricity system" — is far beyond what the world ever sustained during the nuclear heyday of the 1970s, and far beyond what the overwhelming majority of energy experts, including those sympathetic to the industry, think is plausible.

645 comments

  1. Ahh the old argument by Anonymous Coward · · Score: 5, Insightful

    If it doesn't solve it completely, don't do it at all. Selectively applied of course..

    1. Re: Ahh the old argument by Anonymous Coward · · Score: 0

      What about the food chain? Cowspiracy and all that?

      I know it's not as sexy as building 100+ nuke plants and electric cars... But it'd be doable today with no infrastructure change if people could shift attitudes.

    2. Re:Ahh the old argument by Anonymous Coward · · Score: 1

      We need to bury all the worlds radioactive waste in central Washington DC. That will solve all problems.

    3. Re: Ahh the old argument by Anonymous Coward · · Score: 0

      No problem. It would fit in RFK Stadium with room to spare.

    4. Re: Ahh the old argument by Anonymous Coward · · Score: 0

      It would actually be a good idea. It would signal that politicians care and don't think it's dangerous. It would cost a ton, but that's what nuclear does.

    5. Re:Ahh the old argument by Ol+Olsoc · · Score: 1

      If it doesn't solve it completely, don't do it at all. Selectively applied of course..

      Huh? Nuc will play a big part. But the other parts of the equation are catching up, and doing it quickly.

      Nuclear's biggest drawback at this point, is oddly enough, some of it's proponents. A lot of them in here, spouting the same old bullshit of nuclear simultaneously being perfectly safe, the next generation will be perfectly safe, and hey - How can people get some of that good fukushima action, all those explosions didn't mean anything at all. Just steam and smoke and shit. Think of it like a uber-kewl 4th of July celebration with radiation.

      Nuc's big real bugaboo is two things, as long as we discard the radiation.

      First is the immense energy density. You don't pack that much power into a small space without accidentally leaving the genie out of the bottle from time to time. And with project managers and accountants running the show, it just makes it more likely.

      Second is more of a my opinion based on truth category. Nuclear has been plagued by centralization. We build a humongous reactor using economies of scale, which is certainly true, but it's like putting all the eggs in one basket.

      An extension of the centralization issue is right there you have a stretagic issue. Don't ever misunderestimate a strategic issue.

      Regardless, and as far as I'm concerned a decentralized system is inherently safer, anf there are a few other issues coming up as well. Houses can easily be designed to use a lot less electricity. LED lights sip electricity. My new super efficient gas furnace also has a motor that runs on less than half the amperage my 15 year old oil furnace it replaced, which in itself ran on less electricity than the original furnace we took out years ago. Refrigerators and freezers are mere consumer demand away from further decreases in power consumption. I use less electricity than I did 15 years ago, with absolutely no sacrifices.

      I predict new houses will soon be built with low voltage wiring for LED lighting soon. If you don't have to have a little power supply at each light, it will consume even less power.

      I'm going to be performing a little experiment with this in a room renovation. I'll be transforming the room into an ultra-bright "indoor sunroom and will install one each shitload of LED's at low voltage to light it.

      So we have this interesting combination of higher efficiency alternative power sources, combined with significantly less power consumption, which is starting to look like a meeting somewhere near the middle.

      But not everything can be low power, there are some places that simply need a metric shitload of available energy. There, nuclear power will shine.

      --
      The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
    6. Re:Ahh the old argument by Chas · · Score: 1

      Basically.

      What Mr. Agenda is ignoring is, if there's a move to decarbonize by 2050, there just flat-out isn't *ANY* replacement.

      Solar and Wind simply can't grow enough, and is encumbered by the emissions in natural gas..
      Power storage won't be there.
      We're already at peak Hydro.

      Nothing. Not even all the technologies together and given a financial kick in the pants.

      At this point, decarbonizing by 2050 AIN'T gonna happen.

      As much as the NIMBYs and BANANAs want to scream it down, nuclear power is NECESSARY for humanity's future.
      So are various Solar, Wind and Wave. But the renewables simply CANNOT be baseline power. And, even with 50 years of foreseeable improvement, I don't expect power storage to become a truly ubiquitous commodity in the power industry.

      --


      Chas - The one, the only.
      THANK GOD!!!
    7. Re: Ahh the old argument by Anonymous Coward · · Score: 0

      Like gun control in the USA...

    8. Re: Ahh the old argument by nullchar · · Score: 1

      Even if a nuclear waste depot was ~250 miles or however near DC, it would stifle the NIMBY argument and give fission a boost.

      Unlikely to happen, but can we please keep RTGs for space exploration?

    9. Re: Ahh the old argument by KenHansen · · Score: 1

      If it doesn't solve it completely, don't do it at all. Selectively applied of course..

      +1 In the US until we have a plan that encompasses all 11M+ illegal immigrants we can not make a move to address immigration issues...

    10. Re:Ahh the old argument by Pentium100 · · Score: 1

      And in other parts of the world, the electricity usage increases as better financial state allows people to buy things such as air conditioning, which, while most likely being more efficient than it was some years ago, still uses more power than was saved by replacing a few lightbulbs with LEDs (which reminds me, I need to buy some more lightbulbs befoe they are banned completely).

      Electric cars will also increase electricity usage. I also doubt that solar panels can produce a lot of power in winter with day length being 6-7 hours and most days being overcast (rain or snow). Which means that electricity has to be generated in the summer and stored until winter or the coal/oil plants will need to be used during the winter.

  2. Worthless post by Anonymous Coward · · Score: 4, Insightful

    mdsolar, this is absolute trash. No citations, only "it can't work". Fuck you and your worthless do nothing attitude. Please leave. You are approaching Bennett Haselton levels here. No, actually, he prodives bad arguments and poor citations. This is actually worse. This is Jon Katz level.

    1. Re: Worthless post by bill_mcgonigle · · Score: 2, Interesting

      This is Jon Katz level

      Damn, dude, that is harsh.

      Straying back on target, fast breeder reactors are the only way to clean up the nuclear waste mess previous generations have left us to deal with (leaving 300kilo-year waste is wildly irresponsible - the "greatest generation" were selfish assholes, thematically speaking). Accepting that, decarbonization is a convenient side effect for those who don't want a warmer world.

      115 per year is similar to a number I posted here a decade ago - it's only unachievable if you think in terms of NASA, not SpaceX. Unless McAfee pulls off an upset, the US isn't going to be involved in next-gen energy. Thanks for the basic research, national labs - too bad about the commercialization bit.

      --
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      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    2. Re: Worthless post by Anonymous Coward · · Score: 0

      leaving 300kilo-year waste is wildly irresponsible - the "greatest generation" were selfish assholes, thematically speaking

      They really couldn't have foreseen the epic derp levels of the NIMBYs, the utter failure of education to overcome people's ignorant superstitious fears.
      The only real obstacles to nuclear power are human attitudes.

    3. Re:Worthless post by phantomfive · · Score: 4, Informative

      mdsolar, this is absolute trash. No citations, only "it can't work".

      There's a link in the summary. I suggest clicking on it. It contains supporting evidence for what is stated in the summary, which is what most people would consider a 'citation.'

      --
      "First they came for the slanderers and i said nothing."
    4. Re:Worthless post by Anonymous Coward · · Score: 0

      Don't stop him with facts, he can't handle the facts. Let him just blast out "RUBBISH!" without any citation. It's all they think they need. Citations are for other people.

    5. Re: Worthless post by Wycliffe · · Score: 1

      decarbonization is a convenient side effect for those who don't want a warmer world.

      The only way to not have an unbearably warmer world is to reduce our energy usage. If energy usage continues to grow at it's current rate, regardless of the technology used to generate it, earth's oceans will boil away in a few hundred years: http://physics.ucsd.edu/do-the...

    6. Re: Worthless post by khallow · · Score: 2

      The only way to not have an unbearably warmer world is to reduce our energy usage. If energy usage continues to grow at it's current rate, regardless of the technology used to generate it, earth's oceans will boil away in a few hundred years:

      So the only way to avoid exponential growth in energy consumption for the next few centuries is to cut our energy usage right now. Did I get that right?

    7. Re: Worthless post by Crashmarik · · Score: 1

      Don't worry by the time our energy usage is that high, the mass of humanity will form a singularity due to population growth.

      Oh you think it's ridiculous to use an exponential growth projection for population indefinitely into the future ? Hmmmmm

    8. Re:Worthless post by Anonymous Coward · · Score: 0

      mdsolar has been polluting the water with this anti-nook BS for years.

      Land use conflicts arising from solar deployments are now common and getting worse. All that `empty' land you see around the urban cradle you live in isn't actually empty and you don't get to carpet it with Chinese silicon without costly and lengthy fights. Solar will never, ever be more than a token contributor due to this.

    9. Re: Worthless post by Anonymous Coward · · Score: 0

      Please tell me you're just missing a sarcasm tag? If not, your assertion is provably false. It didn't happen in the past, and if it didn't happen then, it won't happen in the future. Remember, all that sequestered carbon had to be free to be used by plants at some point in the past for it to get sequestered in the first place. Is releasing it all back into the atmosphere a good idea for our own survivability? Most probably not. Will it "cause the oceans to boil away"? Almost certainly not. Hyperbole doesn't help your argument.

    10. Re: Worthless post by vtcodger · · Score: 2

      "So the only way to avoid exponential growth in energy consumption for the next few centuries is to cut our energy usage right now. Did I get that right?"

      You have it right. I'm sure the news that not only can they not have two SUVs parked in front of the yurt, but running water, indoor plumbing, refrigeration, etc are out also will come as welcome news to the 6 billion or so souls living in undeveloped and developing countries.

      They won't mind. Riiiiiiight. Of course they won't. They LIKE living in poverty.

      --
      You can't see ANYTHING from a car, You've got to get out of the goddamned contraption and walk...Edward Abbey
    11. Re: Worthless post by khallow · · Score: 1

      I guess bottomless hatred of humanity does seem a thing for modern environmentalists.

    12. Re: Worthless post by Anne+Thwacks · · Score: 1
      The only real obstacles to nuclear power are human attitudes.

      And the fact that it produces dangerous waste that must be supervised "for ever" and the cost of infinite supervision is infinite.

      I think you will find infinity is larger than the (proposed cost of all other energy sources)^10.

      Your pork barrel may differ.

      --
      Sent from my ASR33 using ASCII
    13. Re: Worthless post by Anonymous Coward · · Score: 1

      The 300k year "waste" is actually fuel which can be separated and converted into energy. The remainder is radioactive for less than 300 years, and most of that decays within a decade. The true waste of fission is negligible, and even that can be used for decontaminating food and powering RTGs and such.

      A lifetime of nuclear fuel for an individual, including home and industrial use, will fit in the palm of ones hand. There will never be more than 300 years of "waste" per person alive, and that will all fit in a small trash. Anyone trying to convince you that we can't manage that level of burden is either a useful idiot, or selling something.

    14. Re: Worthless post by thinkwaitfast · · Score: 1

      It's a religion.

    15. Re: Worthless post by thinkwaitfast · · Score: 1

      Population is shrinking in the developed world and is projected to peak worldwide in the next fifty years.

    16. Re: Worthless post by Wycliffe · · Score: 1

      Please tell me you're just missing a sarcasm tag? If not, your assertion is provably false. It didn't happen in the past, and if it didn't happen then, it won't happen in the future. Remember, all that sequestered carbon had to be free to be used by plants at some point in the past for it to get sequestered in the first place. Is releasing it all back into the atmosphere a good idea for our own survivability? Most probably not. Will it "cause the oceans to boil away"? Almost certainly not. Hyperbole doesn't help your argument.

      You're make the false assumption that all the energy tied up in carbon was on the earth at the same time. If instead you think of "sequestered carbon" as "sequestered energy" and realize that those millions of years of sunlight is being stored in the hydrocarbon. What happens if you release a million years of the sun's energy in a short amount of time? More to the point though is to do the math. The link I provided shows the amount of additional energy we are adding to the earth's system and how quickly it is dissipating. With the exception of solar (which the article shows reaches it's limit quickly as well), most other forms of energy are actually adding heat to the surface of the earth and extrapolated out for a few hundred years and that extra heat starts to become a huge problem.

    17. Re: Worthless post by Anonymous Coward · · Score: 0

      And the fact that it produces dangerous waste that must be supervised "for ever"

      Why? We don't feel the need to "supervise" all the naturally-occuring deposits of radioisotopes.
      "Dangerous" is not a boolean value.

    18. Re: Worthless post by LynnwoodRooster · · Score: 1

      Quick math tip: 300,000 infinity.

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
    19. Re: Worthless post by LynnwoodRooster · · Score: 1

      300,000 is much less (infinitely, actually) than infinity.

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
    20. Re:Worthless post by Anonymous Coward · · Score: 0

      I read that.
      Well, part of that. I stopped when I got to the graph purporting to show nuclear becoming more expensive over time that didn't actually have time as one of the axis.

    21. Re: Worthless post by MachineShedFred · · Score: 2

      What you call waste, I call 95% unused fuel. Take out the 5% that makes those 'spent' fuel rods not sustaining a controlled reaction and load them back in.

      You now have actual waste, in an unbelievably smaller volume, which is far more radioactive and thus shorter lived. Vitrify it to bring down the aggregate danger level, and store it in a location that will be geologically stable for a few hundred years.

      But we aren't doing this today because OMG NUCLEAR. Scientists and engineers solved this problem decades ago - we're waiting for the politicians and fearmongers to catch up.

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    22. Re: Worthless post by AmiMoJo · · Score: 1

      Developing nations will get the high standard of living, it's just that they have a golden opportunity not to fuck up in the way we did. They can build their electrical grids to support distributed generation from day one, instead of having to re-build for it later. They can avoid poisoning themselves with pollutants by learning from our mistakes and using clean tech instead. I mean, it's not like they are going to be using CFCs in their fridges when thanks to the west even the cheapest ones are CFC free now and a lot more efficient than models from 30 years ago too.

      Also, why do you assume other cultures will want the same things that Americans want? In Japan you don't see many SUVs, people mostly have saloon or small cars, and kei cars are popular. You have probably never even heard of a kei car, but they are great.

      Ever notice how Europeans use about half the energy that the average American does, but have a similar or better quality of life? Perhaps it's possible to maintain quality while reducing energy use, or at least switching energy production to cleaner methods.

      --
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      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
  3. Newsflash by Anonymous Coward · · Score: 1, Insightful

    Climate change scientists are prone to exaggeration. Exaggerated claims about threats, exaggerated claims about temperature increases, exaggerated claims about remedies. But the guys who say it's NOT the end of the world are name-called. Because telling dramatic stories is how you get money and power without earning it.

    1. Re:Newsflash by bill_mcgonigle · · Score: 1

      The only problem is calling things that don't need to obey the Scientific Method "science". Speculation is great - it's a prerequisite to a hypothesis (I won't DIceDot and explain how science works here).

      There is an argument that we can't afford to learn about the climate by the methods of science - that we only get one shot and it could be too late if we don't act now. Which, fine, we can have that as a separate argument (ironically it's the political progressives making this ultra-conservative claim, in large part). It's when the sophists trot out their "the science is settled" or "we have agreement" nonsense that everything goes off the rails in terms of having a discussion using reason and evidence.

      If politicians are standing behind the sophists demanding more money and power, watch your wallet and your liberty. If the sophists are on the politicians' payrolls, double down on that.

      (Sophists may now commence comments arguing how science doesn't always require the scientific method).

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    2. Re:Newsflash by angel'o'sphere · · Score: 3, Informative

      Actually, climate scientists are underrating the thread.

      The situation is far worth than you get from the "news".

      E.g. if you look at the prognosis of sea level rising of the last 30 years. It was a fan with an prognosed upper bound and an prognosed lower bound. A sane person would expect the actual increase to vary around the middle, approaching probably both bounds alternating over time.

      Guess what: the sea level increase is ABOVE the upper bound constantly since 15 years or more. And "the scientists" did adjust their estimates every year: and failed every year.

      Same for temperature increase. There are idiots like you proclaiming that the warming has stopped 10 years ago. However the educated agree, 2014 was the warmest year in recorded history, and ... we are evaluating right now, but are already pretty certain, that 2015 was even warmer.

      Because telling dramatic stories is how you get money and power without earning it.
      Actually, a climat scientist does not earn more money as an plasma physicist or aerodynamics researcher. Money for PhDs or Professors at universities or research institutes are the same, regardless of actual topic they work in (*facepalm*). You are an idiot.

      --
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    3. Re:Newsflash by Anonymous Coward · · Score: 0

      utter garbage,

      they are scare mongering

    4. Re:Newsflash by Anonymous Coward · · Score: 0

      What you're missing completely is that anyone that doesn't toe the party line on climate change is denounced as a quack, will never get tenure, and will never have their work taken seriously again. So if you want to make it to positions of power, prestige, and money, you'd better not publish anything that contradicts the climate change orthodoxy. Whatever perspective is right, the taboo against dissent is harmful. This isn't just a modern problem, scientists with dissenting ideas have faced ridicule throughout time. Many of them, like Marie Curie, are vindicated in time, but often not in their lifetimes.

    5. Re:Newsflash by Maritz · · Score: 1

      Well, look who started with their conclusion.

      --
      I do not want your cheap brainburning drugs. They are useless for work. And I am a working man today.
    6. Re:Newsflash by MachineShedFred · · Score: 1

      The thing I can't ever reconcile is that the same people shouting "but SCIENCE!" are the same people that oppose actually building nuclear infrastructure, where the science really IS settled.

      If you're such a believer in science, then let's let science and engineering be part of the solution.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    7. Re:Newsflash by cbeaudry · · Score: 2

      Look, because you follow the crowd and news and like to frequent propaganda alarmist green sites, does not mean you are "educated" on the matter.

      Sea level rise is at about 3mm per year and has been since the end of the last ice age.
      Temperatures have been pretty flat for 18 years now and the evidence shows this.

      2014 was the "warmiest" year by something like 0.01C with an error margin of 0.1C with a 34 or 38% (I forget which) level of confidence.

      I think the facepalm should go to you and all those who follow the "IN" crowd and like to believe the boogeyman scare stories of your generation.

      Only a few climate scientists profit from all this scare mongering, Jaggadish Shukla being one of them. But it only takes a few very vocal ones in the media to stir up a frenzy and control the narrative, especially when backed by big money like the Rockefellers and governments like the U.N.

      You think you are being smart, but you believe exactly what they want you to. You are being misled and you need to open your eyes.

    8. Re:Newsflash by angel'o'sphere · · Score: 1

      Well,

      if you want to post numbers, you should google for the correct ones.

      Claims like this: Temperatures have been pretty flat for 18 years now and the evidence shows this.
      are just nonsense.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    9. Re:Newsflash by cbeaudry · · Score: 1
  4. Wrong by mwvdlee · · Score: 4, Insightful

    {anything} is the only viable path to {anything}

    Is wrong by definition.

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    1. Re:Wrong by cwsumner · · Score: 1

      The answer to most questions of this type, is just like when you were in school.
      When faced with A.B,C,D, the answer is usually: D: All of the Above! 8-)

  5. It's energy density, stupid by tylersoze · · Score: 5, Insightful

    In all these debates I'm always amazed how the simple "big picture" of the physics involved is disregarded. It all boils down to energy density. Is there any other power generation technology that comes close? The only other alternative is to reduce our energy usage and if that ain't gonna happen you need to build lots of reactors producing lots of energy. Sure you can cover the surface of the Earth in solar panels I suppose, but that seems to be a bit of a maintenance headache (not to mention the energy cost of creating the panels in the first place). It seems to me all the negatives of nuclear boil down to the cost of making it safe which surely we can do a more efficient job of? We can't keep holding out hope for fusion, we need to make plans for relying on fission for the foreseeable future.

    1. Re:It's energy density, stupid by Anonymous Coward · · Score: 0

      Yes, very efficient conversion of matter to engergy in a reaction sense of the word. The problem is construction of the sties. Regulations, Unions, etc make the thing cost much more than say hyrdro-electric, coal, oil. Humans go for best bang for their buck. Give up on the solar panel thing. There aren't enough materials on the planet to cover it with solar panels.

    2. Re:It's energy density, stupid by SoftwareArtist · · Score: 5, Insightful

      > Sure you can cover the surface of the Earth in solar panels I suppose, but that seems to be a bit of a maintenance headache (not to mention the energy cost of creating the panels in the first place).

      Ok, you just managed to make three totally false claims in the space of one sentence:

      1. You would need to cover the entire surface of the Earth in solar panels to supply all our energy needs. No. Not even close. Consider that if you cover the roof of a typical house in solar panels, they will generate more energy than what is used by that house. You can find lots of details at http://www.techinsider.io/map-.... "If solar is 20% efficient (as it has been in lab tests) at turning solar energy into power, we'd only need to cover a land area about the size of Spain to power the entire Earth renewably in 2030." In fact, solar compares quite favorably to other energy sources in terms of land area required, if you take into account things like the land needed to mine coal or the area of the reservoirs needed for hydroelectric. And for solar, much of that "land area" can just be on top of roofs that are already there.

      2. Solar panels require more maintenance than nuclear power plants. Seriously? Is that a joke? Once installed, solar panels take almost no maintenance at all. Operating a nuclear power plant is a very complicated, very expensive business. There's no comparison at all.

      3. Creating solar panels takes more energy (or almost as much energy) as they produce. This is a myth that's been floating around for years, but has never been true. From http://solarcraft.com/solar-en...: "A study by the National Renewable Energy Laboratory conclusively demonstrates that the manufacturing energy cost versus the energy production payback for solar modules is generally less than 4 years." And you think it takes no energy to build and operate nuclear power plants, not to mention mining uranium?

      --
      "I'm too busy to research this and form an educated opinion, but I do have time to tell everyone my uninformed opinion."
    3. Re:It's energy density, stupid by DanielRavenNest · · Score: 2

      > Sure you can cover the surface of the Earth in solar panels I suppose,

      Solar flux arriving at the Earth's surface is 25,000 TW, accounting for night and weather. That's 1400 times more than civilization's total energy consumption from all sources of 18 TW. Throw in other sources like wind, hydroelectric, nuclear, and biofuels, and you maybe need to cover 1/40th of 1% of the Earth. That's about 1/6th of the land area already covered by cities, so you can provide most of the needed area from rooftops and parking lots.

      Wind turbines in agricultural areas only use about 1% of the land, because they have to be ~5 blade diameters apart to not shadow the next turbine in the wind farm, and they are built as towers with thin blades. So you can farm nearly up to their base. Offshore turbines don't consume any land at all.

    4. Re:It's energy density, stupid by angel'o'sphere · · Score: 1

      The energy cost to create PV panels is repaied in a few months. Everybody should know that by now.
      The amount of place you need to power the whole world is something like a bigger desert in the USA. Less than half of Texas e.g. That as well should meanwhile have grasped everyone. The 'need to cover half the planet' myths of the 1950s are debunked since decades.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    5. Re:It's energy density, stupid by angel'o'sphere · · Score: 1

      "solar modules is generally less than 4 years." Since years it is in the three to six month range, even if you count the whole module with aluminium frame etc.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    6. Re:It's energy density, stupid by thinkwaitfast · · Score: 0
    7. Re:It's energy density, stupid by FlyHelicopters · · Score: 3, Informative

      Consider that if you cover the roof of a typical house in solar panels, they will generate more energy than what is used by that house.

      There are several things wrong with that statement.

      First, that isn't true of all houses. I've had my house looked at, covering my roof would provide only 1/3 of my total energy use, and that is taking into account multiple energy efficient improvements that I've made.

      Second, houses do NOT use the majority of power. They actually are a modest user of power. Manufacturing and industrial uses use far more power.

    8. Re:It's energy density, stupid by mdsolar · · Score: 1

      Small quibble. A lot of dams are built for flood control with hydro power as a bonus. You want to count a whole river for cooling a nuclear plant, but some hydro is just gravy.

    9. Re:It's energy density, stupid by MrKaos · · Score: 1

      It all boils down to energy density. Is there any other power generation technology that comes close?

      The capacity to extract the energy density of the fuel is measured in the burn-up rate the reactor achieves. The current reactor technology deployed achieves a burn-up rate of 0.3%, that is one third of one percent.

      So in reality what it boils down to is the technologies ability to extract that energy density as opposed to the energy density of the fuel itself.

      --
      My ism, it's full of beliefs.
    10. Re:It's energy density, stupid by Cyberax · · Score: 1

      Replacement of the world's energy use will require us to build a square with a side of about 1000 kilometers, covered with solar panels.

    11. Re:It's energy density, stupid by Anonymous Coward · · Score: 0

      In fact, solar compares quite favorably to other energy sources in terms of land area required, if you take into account things like the land needed to mine coal or the area of the reservoirs needed for hydroelectric.

      Are you including the land needed to mine the raw materials for the solar panels in this determination???

    12. Re:It's energy density, stupid by Anonymous Coward · · Score: 0

      It's true for houses, but not necessarily true for poorly insulated huts made of sticks, paper, and single-pane windows.

    13. Re:It's energy density, stupid by Anonymous Coward · · Score: 0

      Covering half of Texas with solar panels would be a vast improvement over current Texas.

    14. Re:It's energy density, stupid by MachineShedFred · · Score: 1

      It's not a problem of technology - we have the technology to reprocess the fuel and remove the neutron poisons that prevent further burn. Science and engineering solved that decades ago.

      We don't use this technology, because of a problem of politics and fear. It's a problem of emotion, not one of science or engineering. And that problem doesn't get solved nearly as easily or completely.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    15. Re:It's energy density, stupid by Anonymous Coward · · Score: 0

      A dynamic lifecycle assessment of solar shows that at predicted growth rates in their manufacturing, solar as an industry has yet to save a single kilogram of CO2e http://www.lowtechmagazine.com/2015/04/how-sustainable-is-pv-solar-power.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+typepad%2Fkrisdedecker%2Flowtechmagazineenglish+%28Low-tech+Magazine%29. Whether the production of such an energy intensive power source fueled by Chinese brown Coal will trigger the "Clathrate Gun Hypothesis" remains to be seen, but silicon requires orders of magnitude more energy to manufacture than concrete and metal.

    16. Re:It's energy density, stupid by edtice1559 · · Score: 1

      In areas of the world where people live in poorly-insulated huts, per capita energy usage is much lower. So I would suspect the statement to still hold true.

    17. Re:It's energy density, stupid by dywolf · · Score: 2

      There's nothing wrong with that statement.
      you're using a personal anecdote to refute an engineering analysis based on nationwide averages.

      the analysis has been done.
      we know how much energy humanity uses.
      we know how much area with today's panels it would take to generate that much energy.
      we know many different ways of finding that much area.

      such as installing on every residential structure in the US. that alone with panels would create more energy than the entire planet uses. add in commercial and you double it. Just from installing in the US.

      We have the capacity.
      We have the capability.
      What we lack is distribution (smart grid) and actual sufficient installations.
      Both of those are easily solvable.

      This isnt pie in the sky dreaming, but actually possible in our lifetimes.
      the only thing lacking is will.

      --
      The guy who said the election was rigged won the presidency with the second-most votes.
    18. Re:It's energy density, stupid by FlyHelicopters · · Score: 1

      It's true for houses, but not necessarily true for poorly insulated huts made of sticks, paper, and single-pane windows.

      Sigh...

      Why I'm even bothering to respond to an AC, I don't know, but anyway...

      Putting aside how wrong your comment really is, the only houses that have enough roof area to cover in solar and provide for 100% of their energy needs are either really expensive specially designed houses that are not normal, or houses that live in climates that don't see large swings in temp.

      I live in Texas, it is 100+ in the summer and 30ish in the Winter, we use a lot of heat and a lot of AC.

      I don't have a house made up sticks, paper, and single-pane windows, even if you think the snark is funny.

      The amount of energy that a house of 5 people that needs to be heated and cooled in Texas exceeds the roof space of that house.

      It would be nearly impossible, at any price, to make my house use 2/3 less power. Even if you doubled the price of the house, you would have trouble doing that.

    19. Re:It's energy density, stupid by doom · · Score: 1

      No, there is something wrong with this statement: "Consider that if you cover the roof of a typical house in solar panels, they will generate more energy than what is used by that house." If you have an analysis that shows that's correct, you should link to it... I guarantee the assumptions are unrealistic.

    20. Re:It's energy density, stupid by FlyHelicopters · · Score: 1

      This isnt pie in the sky dreaming

      Yes it is... If it were that simple, we'd do it.

      such as installing on every residential structure in the US. that alone with panels would create more energy than the entire planet uses. add in commercial and you double it. Just from installing in the US.

      Citation needed... Frankly, I think you're smoking something, so prove it...

    21. Re:It's energy density, stupid by Pentium100 · · Score: 1

      we'd only need to cover a land area about the size of Spain to power the entire Earth

      Does this work at any latitude (meaning any country can produce its own power) or do you need the area to be near the equator?

      Once installed, solar panels take almost no maintenance at all.

      There is no need to clear the snow from thousands of square kilometers of solar panels in winter?

      Consider that if you cover the roof of a typical house in solar panels, they will generate more energy than what is used by that house.

      A few years ago I considered this for my house. I needed ~2kW constant power (I had no AC back then). Even with perfect storage (charge in summer, use in winter), the cost of the panels was high enough that it would not pay off for at least 20 years. Add to that the cost of batteries, converters, installing cost and it's cheaper to just use the grid power. I live around 55 degrees north, that may be the reason why.
      Oh, and if I had installed all of that? I would have a problem now, because now I use more power than I used before.
      I would probably be more economical for me to buy/build a small coal,wood or natural gas powered steam engine and attach a generator to it than it is with the solar power. It would make sense in winter as I could use the waste heat from the engine to heat my house.

    22. Re:It's energy density, stupid by SoftwareArtist · · Score: 1

      If you live very far north, solar probably isn't the best choice there. Other types of renewable energy like wind, hydro, geothermal, etc. will be better. Renewable energy isn't one size fits all. For example, take a look at http://thesolutionsproject.org.... They've worked out plans for every state in the US to convert to 100% renewable energy, but the mix is different for each one. Alaska (even further north than you) would get only 6% from solar while Florida would get almost 70%.

      My comment about solar panels on a house was just an illustration. I didn't mean every house should be independent and self supporting, complete with its own batteries. Also remember that energy production doesn't have to be local. It's nice if it is, because that cuts the transmission losses, but we routinely transmit electricity over long distances. Maybe yours will come from a solar plant that's 1000 km further south.

      --
      "I'm too busy to research this and form an educated opinion, but I do have time to tell everyone my uninformed opinion."
    23. Re:It's energy density, stupid by Pentium100 · · Score: 1

      Solar power needs lots of sunlight, so, being far from the equator is bad.
      Hydro needs big rivers and (preferably) mountains.
      Wind could be useful, but it is intermittent.

      Maybe yours will come from a solar plant that's 1000 km further south.

      That requires power lines that go over multiple countries. While it may work out most of time, having most of your energy needs come from other (fixed) countries is not that great (because you are dependent on those countries and because you pay more money out instead of keeping it inside the country by, say, paying wages to the power plant constructors and employees). It would be better to build new nuclear or fossil fuel power plants and just import the fuel, since changing the fuel supplier is easier than moving the power plants.

    24. Re:It's energy density, stupid by SoftwareArtist · · Score: 1

      It would be better to build new nuclear or fossil fuel power plants and just import the fuel

      Perhaps for some very narrow definition of "better". If you use fossil fuels, then you're using the atmosphere as a dumping ground for your pollution. If you use nuclear, you produce radioactive waste that's dangerous for centuries, not to mention all the weapons proliferation issues it creates. And in any case, nuclear isn't anywhere close to cost competitive with renewables anymore.

      Also remember that chemical fuels don't have to be fossil fuels. You can produce hydrogen, butanol, etc. from renewable energy, which you can then import just like any other chemical fuel. The eventual carbon-neutral economy will probably include a good amount of that. It's the easiest way to store energy for long times (lots of methods work to store it for hours or days, but chemical storage is the best if you want to store it for months), and it can be used in situations where batteries don't have enough density (like airplanes).

      --
      "I'm too busy to research this and form an educated opinion, but I do have time to tell everyone my uninformed opinion."
    25. Re:It's energy density, stupid by MrKaos · · Score: 1

      It's not a problem of technology - we have the technology to reprocess the fuel and remove the neutron poisons that prevent further burn. Science and engineering solved that decades ago.

      Indeed we did, but that doesn't mean you can retrofit that technology into existing reactors. It is a completely different reactor technology. Existing reactor remain at 0.3% burn-up rate and will stay that way until they are decommissioned.

      We don't use this technology, because of a problem of politics and fear. It's a problem of emotion, not one of science or engineering. And that problem doesn't get solved nearly as easily or completely.

      Everything I have seen is that they are just too expensive and Wall street won't invest in nuclear if they can get a return on investment sooner with wind. Who do you think is to blame?

      --
      My ism, it's full of beliefs.
    26. Re:It's energy density, stupid by Pentium100 · · Score: 1

      not to mention all the weapons proliferation issues it creates

      All the big countries, especially Russia and the US have enough bombs already to destroy everything multiple times, them making more bombs isn't really an issue. Iran building bombs is an issue, but that should not prevent the US or the EU from building new reactors.

      As for "better" - would you like if, say, most of the electricity that your country needs came from Russia (or if you live in Russia - the EU), with it threatening to have an "accident" if your politics do not match theirs? At least if it cuts off the gas line, gas can be imported via ship.

      When it becomes possible to use renewables to make fuel for the fuel burning plants, then renewables would be possible to use as a base load. However, I doubt it is going to be that way tomorrow (compared to keeping the oil plant working) or 10 years from now (compared to building a new nuclear power plant).

    27. Re:It's energy density, stupid by Anonymous Coward · · Score: 0

      > Solar flux arriving at the Earth's surface is 25,000 TW, accounting for night and weather. That's 1400 times more than civilization's total energy consumption from all sources of 18 TW.

      And by continuing a 2% growth pr. year in energy use there will be a staggering 367 years before we hit 100% :-D

  6. Really ? by Anonymous Coward · · Score: 1

    present a mostly handwaving argument in which new nuclear power achieves and sustains an unprecedented growth rate for decades

    Well at least they are moving up in the world. Handwaving is definitely an improvement from the statistical manipulation they have been using to foist global warming on the world.

  7. LFTR by kheldan · · Score: 4, Informative

    Nuclear powers' 'various nagging problems' won't be an issue if we started using thorium-based reactors.

    --
    Are YOU using the TOOL, or is the TOOL using YOU? Think about it!
    1. Re:LFTR by Anonymous Coward · · Score: 0, Interesting

      In addition smaller, safer pebble-bed reactors are far safer than traditional designs. Spreading them out will help reduce transmission losses and increase reliability. The only real issue with nuclear power is the fear of the Dirkadirkastani's attacking reactors or making dirty bombs out of them.

    2. Re:LFTR by Rei · · Score: 2, Insightful

      Everything in ((Field X)) would be so much better if they simply used ((Trendy Technology Y)) that I only have a superficial understanding of - yet all of those sheeple who actually work in the field refuse to give it the attention that I think it deserves! Check out this article in the Huffington Post that talks about how ((Trendy Technology Y)) could solve all the world's problems in ((Field X)) with no downsides!

      --
      He's the sort of person who would sell the Red Cross to Dracula.
    3. Re:LFTR by Anonymous Coward · · Score: 0

      Here's the problem with your argument. Trendy Technology Y in this case is a reactor design that was created along side the original uranium based reactors which we mostly use. And most agree that the only reason we went with uranium based over thorium based is because uranium based produces more weapons grade plutonium than thorium based, and in the 50s through the 70s when these plants were designed and built, this was a very big driving force.

    4. Re:LFTR by argumentsockpuppet · · Score: 2

      Forty years of mainstream scientific study is a lot to catch up with. Thorium has good science behind it, strong theory and some experimentation, but catching up will take time. Nonetheless, if technology keeps the pace it's currently on, we can expect Thorium based reactors to make a commercial showing in a decade or two. (Based on a non-expert but avid reader's perspective.)

      I expect fusion to make a commercial showing eventually as well. For that though, despite all the interest and scientific focus, I expect we're looking at more like a century. I'm optimistic that humanity will make it there, just not optimistic we'll make it in a short period. For humanity's sake, I hope we can plan for that period anyway.

      I'm somewhat more optimistic about orbital solar power. The tech isn't beyond current means, even if the investment and politics aren't there yet. I'm really hoping to see some progress on that during my lifetime. Between wind, solar, hydro, geothermal, improved and smaller fission reactors, I expect we'll see much closer to carbon neutrality in my lifetime as well. I hope that I'll live to see the world where my potential grandchildren can focus more on fixing the problems we've left than cutting down on obsolete energy production methods.

      In a couple centuries, if we can manage to keep our other problems from eliminating humanity and it's potential, I hope we'll have von Neumann machines building orbital solar collectors and living habitats for other planets. I'd love to believe that we'll be able to get our eggs out of this single basket, however fond of it I may be.

    5. Re:LFTR by Anonymous Coward · · Score: 0

      Except for the various nagging problems with getting thorium-based reactors to actually work.

    6. Re:LFTR by Anonymous Coward · · Score: 0

      Actually Thorium and Breeders were technologies being pushed at the advent of the nuclear industry in the US...sadly the needs of the military and the nuclear arms race won that fight. Uranium/Plutonium as nuclear fuel was a dumb idea in the beginning and it still is. Can you say transuranics are bad?

      The industry now makes money selling fuel that is burned about 10% then replaced and stored on the governments dime...the "sheeple in the field" might have a pork barrel of their own that they don't want to have to figure out how to replace. Think inkjet printer ink and you'll understand the problem.

      Watch China. They want a Thorium breeder reactor and they are spending the money and resources to do it in under 10 years from start to full size reactor. Neat eh?

    7. Re:LFTR by Rei · · Score: 4, Informative

      Right. Because the civilian nuclear industry has in sixty years hardly seen fit to invest anything in it, but that's clearly because they're ignorant nitwits who can't see how much clearly better it is, right?

      Sorry, but thorium is not the be-all end-all. There are lots of lists touting its advantages that people like you and the gp love to share that conveniently omit the downsides. And the disadvantages aren't just "it's immature mothballed technology". You have to produce their (large) initial fuel load from other reactors, adding a lot of cost and robbing them of output for quite a while. Either that or use expensive, proliferation-risky highly enriched uranium or plutonium to start them, which itself has all sorts of problems related to limited solubility - and none of the workarounds are appealing. LTFRs have salt-freezing difficulties (so muchso that the leading "solution" is to run the entire reactor building blazingly hot rather than trying to heat every line) and use beryllium, a highly expensive, limited resource that's extremely toxic when aerosolized. They also are less controllable due to a lot of the delayed neutrons coming from outside the core. Moving the fuel (and thus waste) around also means that you can plate out waste onto your pipes and valves, potentially causing reduced flows or blockages. The tellurium formed tends to corrode the nickel-based alloys used. The alloys are also very damaged by long-term neutron exposure, and the alloying "fix" reduces the temperature limit, to a low level that may not be acceptable. The graphite has short lifespans and tends to accumulate radioactive daughter products and become a bulky, dangerous waste stream. It also has a potentially risky positive feedback loop, increasing U-233 fission as it heats up (remember Chernobyl? Same thing). The fuel (and thus waste) is fluorides, which are highly water soluble and thus a storage hazard, requiring a conversion step before storage (every such step adds costs and increases risk of spills). Fluoride wastes also over time tend to outgas hydrofluoric acid, uranium hexafluoride, and other extremely dangerous gases. Nobody has any clue what decommissioning costs would be, which is a massive unknown - the tiny Molten-Salt Reactor Experiment had huge decommissioning costs compared to its size. LFTRs are a serious proliferation risk via the protactinium extraction pathway, a necessary step if you want a half-decent power output, and the diversion would be very easy to hide because it's hard to quantify exactly how much protactinium the reactor should be producing at any given time. Protactinium can be used to produce very pure U233, which is a suitable material for making bombs. Another easy proliferation pathway is via extraction of Np-237 - working with a constantly reprocessed, fluoride-based stream makes proliferation almost too easy (the supposed "anti-proliferation" nature of LFTRs is that you can't (without difficulty) just extract the uranium due to U232 contamination... but that's irrelevant because it makes Pa-233 and Np-237-based proliferation so easy). LFTRs have to use expensive highly enriched lithium (7Li) to avoid becoming a major source of tritium outgasing and losing a lot of their neutronicity (which is already for many reasons a huge challenge in thorium reactors - they're much harder to simply "make work")

      But no no, let's go on about how it's the solution to everybody's problems and that the industry is a bunch of morons for not throwing all of their money into it...

      Really, a LFTR is pretty much backwards from where reactors should be going in every regard. You want your fuel and waste to be contained in small, stable elements, not flowing all over the place and touching (and degrading) everything. You don't want random, potentially rogue states having their hands on reprocessing equipment and liquid fluorides. You don't want to have to use more rare, expensive, and toxic materials in your construction and operation. You want delayed neutrons and negative v

      --
      He's the sort of person who would sell the Red Cross to Dracula.
    8. Re:LFTR by aethelrick · · Score: 2

      Yes! Absolutely! Why don't our politicians get behind this technology? Well... I can't imagine it has anything to do with Thorium reactors being crap at making weapons grade fuel yet fantastically safe and cheap for making electricity. :P

    9. Re:LFTR by MachineShedFred · · Score: 1

      This post could be applied to roughly 98% of all Slashdot articles, and be completely on point.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    10. Re:LFTR by N3wsByt3 · · Score: 1

      Some rebuttals are in order, because otherwise people might think it's actually all valid, while, in fact, most is not.

      Rebuttals:

      http://pche-sts.blogspot.be/20...

      http://energyfromthorium.com/2...

      Many of those counter-arguments you raise, have been brought up before, and equally as much has it been shown to be largely complete nonsense.

      --
      --- "To pee or not to pee, that is the question." ---
  8. Lack of fuel by mdsolar · · Score: 3, Insightful

    The proposal also runs out of uranium before all the reactors are built. http://slashdot.org/journal/53...

    1. Re:Lack of fuel by ericloewe · · Score: 1, Insightful

      That bullshit argument again?

      IIRC, it was thoroughly debunked by some simple investigation.

    2. Re:Lack of fuel by tylersoze · · Score: 1

      Umm, thorium reactors anyone?

    3. Re:Lack of fuel by Anonymous Coward · · Score: 0

      Yeah, and the mining and enrichment process for uranium is far from CO2-free. Along with the concrete and construction materials needed to build plants and refinement capabilities.

    4. Re:Lack of fuel by mdsolar · · Score: 0

      Never. Always a resort to the breeder fantasy.

    5. Re:Lack of fuel by Anonymous Coward · · Score: 0

      No matter what form of power being used, there will be carbon dioxide emitted during construction and refining the materials, that is unavoidable. Also Uranium 238 can be used to make plutonium, which can in turn be used to produce power and make more plutonium.

    6. Re:Lack of fuel by ericloewe · · Score: 1

      No breeder reactors required. So please stop spreading FUD.

    7. Re:Lack of fuel by mdsolar · · Score: 0

      At the current rate of consumption there is only about 80 years of economically viable uranium left. It will run out just like oil or coal or natural gas.

    8. Re:Lack of fuel by rubycodez · · Score: 1

      false, spent fuel can be used in smarter reactor designs; we have centuries of nuclear fuel available.

    9. Re:Lack of fuel by FuzzMaster · · Score: 2

      You're ignoring the economic incentive to increase exploration and extraction that comes with increased demand. The horizon for fossil fuels has been extended with the recent improvements in extraction technology that resulted in part from high demand, and we should expect similar improvements for uranium.

    10. Re:Lack of fuel by mdsolar · · Score: 1

      Not at all. The 80 year number includes much poorer reserves than are presently being mined. Also, with everything else getting cheaper and nuclear getting more expensive, where is the incentive to go to extreme efforts?

    11. Re:Lack of fuel by mdsolar · · Score: 0

      It's called spent fuel for a reason: it's spent.

    12. Re:Lack of fuel by rubycodez · · Score: 1

      no, it's "spent" only for archaic 1950s Gen I and Gen II reactor designs we still use. Only has about 1/7th the total energy we could use taken out of it, and has thousands of years decay time. Smarter design of reactors can get the rest of the energy and leave short-lived isotopes to boot. Smarter countries like China, South Korea, Russia, India have active programs to pursue the tech.

    13. Re:Lack of fuel by MrL0G1C · · Score: 1

      There's also the 'we can use the Uranium from seawater' fantasy - also extremely expensive and requires huge amounts of plastic to capture the Uranium.

      Expense is the biggest problem with nuclear power in a nutshell, nuclear will only get more expensive whilst renewables and storage costs continue to plummet.

      --
      Waterfox - a Firefox fork with legacy extension support, security updates and better privacy by default.
    14. Re:Lack of fuel by whit3 · · Score: 1
      There is no 'lack of fuel' problem for the nuclear-plant buildup, at least in the first millenia.

      In order to make the argument work, one assumes measured 'proved reserves' of 'economically viable' ores.

      The first problem, is that 'economically viable' isn't a fixed point. The production of oil from Canada's tar sands was deemed 'not economically viable' a few decades ago, but the price of oil rose. That's a general truth: as rich ores are used up, less-rich ores become economically viable.

      The second problem, is that 'proved reserves' only exist because someone goes out and hunts for ores! When you get proof of all the uranium ore you need for a century, why do you keep paying prospectors for new exploration? Mainly, you DON'T.

      It might be useful to note that on the scale of our planet's land surface area, and the depth of achievable mines, we've mainly just scratched at the surface in terms of exploration. That already got us enough fossil fuel to pollute the atmosphere to horrifying greenhouse gas levels. We need to be less destructive in our choice of what to scratch for. Our future can be bleak if we do too much coal.

    15. Re:Lack of fuel by ericloewe · · Score: 1

      There you go moving the goalposts.

      Of course "economically viable" uranium is only going to last a relatively short time (and, let's face it, 80 years allows for *a lot* of improvements, so even your FUD scenario is better than the alternatives). Supply and Demand dictate that people are not going to focus on the harder to mine uranium while there is plentiful easier to mine uranium.

    16. Re:Lack of fuel by ericloewe · · Score: 1

      Nobody is claiming that this is the cheapest solution. It's the *best* solution.

    17. Re:Lack of fuel by thinkwaitfast · · Score: 1
      Novel Material Shows Promise for Extracting Uranium from Seawater

      I believe the Japanese have already done this and shown it to be economically feasible. Not only that but there's 100,000 years worth of the stuff.

    18. Re:Lack of fuel by angel'o'sphere · · Score: 1

      Do you know what FUD actually means?
      Fear, Uncertainty and Doubt.

      So if someone is saying something you consider wrong, it is only wrong in the first place, not FUD. What is actually the name of the fallacy for that?

      Unfortunately in the whole thread you are wrong and mdsolar is right, so we all assume you are a payed agitator ... no one can be as dumb you claim to be.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    19. Re:Lack of fuel by angel'o'sphere · · Score: 1

      No it can't.
      Spend fuel is not able to sustain a fission reaction. Hence the name spend.
      Perhaps you mean: we could add spent fuel to reactors that are using a different way of burming, like breeding.
      But there is no way that you take spend fuel from one reactor and put it into another one and continue burning it there.
      No idea where this dumb ideas come from ....

      Centuries? If some one says, years, I expect a dozen or more, if someone says decades I expect minimum something like 50 years or more, if one says centuries it certainly should be more than three, actually like with decades I would expect five or more ...

      50 years ago the uranium reserves of the planet where estimated to last minimum 5000 years, many thought it would be 10000 years. However the energy hunger of the plant increased over the last 50 years by factors of 100 - 1000.

      So the 5000 years got cut down to 50 ... the 10000 to 100.

      Actually I don't know how much Uranium we really have. But I doubt it lasts 'centuries'.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    20. Re:Lack of fuel by angel'o'sphere · · Score: 1

      Erm, how dumb are you?
      Uranium reactors, regardless of 'Gen' use fuel that is enriched to about 6%. That means 6% fissionable Uranium, 94% non fissionable.
      The fuel is considered spent when 50% of those 6% has fissioned. That is 3% of the total mass.

      No reactor design is changing anyting about that. No idea where you pulled the 1/7th as a number from.

      The rest of you 'short lived isotpoes' talk is bullshit. Why don't you read a bit about reactors? If you are fan of them, you definitely should know more about them.

      You remind me to that old joke of a girl whos VW Beatle broke down at the road. And another girl, also with a beatle stops to help her. The first girl says: 'Look at this' opeming the front hatch, 'I must have lost my engine somewhere!'
      The second girl answers walking to her car opening the back hatch: 'That should be no problem, look what I have in my trunk: an replacement engine! We now only need to stop a few strong men to place it into your car!'

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    21. Re:Lack of fuel by mdsolar · · Score: 1

      You forget that uranium is found with Geiger counters. Makes prospecting quick. How are the tarsands doing now? Same goes for uranium as renewables make electricity cheaper and cheaper.

    22. Re:Lack of fuel by FlyHelicopters · · Score: 1

      nuclear will only get more expensive whilst renewables and storage costs continue to plummet.

      It is worth looking at WHY nuclear is expensive... it shouldn't be, but it is, and I suspect lots of reasons have nothing to do with the cost to physically build a reactor.

      As a side note, while it is true that renewables and storage costs do continue to drop, they won't drop fast enough to make a difference in the outcome of climate change.

      The "wind and solar will solve everything crowd" has a major math problem, one they don't want to admit or address.

    23. Re:Lack of fuel by FlyHelicopters · · Score: 1

      Our future can be bleak if we do too much coal.

      As a side note, I agree with your overall post, but wanted to quote this.

      Sadly, I think our future IS bleak, because people in general are stupid and don't want to learn.

      I used to think CO2 wasn't a problem, but I've done reading and learning and I see the issues. What is worse, I see what would have to be done to do anything about them, and frankly, I don't think any of it is going to happen.

      We're so screwed, it is sad...

    24. Re:Lack of fuel by ericloewe · · Score: 1

      Spreading disinformation is FUD (in this case, at least).

      Accuse me of whatever you want, people like you are going to doom us all, one way or another.

    25. Re:Lack of fuel by MrL0G1C · · Score: 1

      As a side note, while it is true that renewables and storage costs do continue to drop, they won't drop fast enough to make a difference in the outcome of climate change.

      Solar is expected to fall as low as 1c per kWh, at that price we can overbuild several times over and just chuck excess energy or make cheap hydrogen for use later. Wind is already as low as 3.65c per Kwh in places. Solar panels are dropping in price about 40% per annum, that's is extremely fast and invalidates your claim that the price won't drop fast enough - it is dropping fast enough right now. Also the race is on across the world to create better cheaper batteries, the best solutions use harmless abundant cheap recyclable chemicals.

      --
      Waterfox - a Firefox fork with legacy extension support, security updates and better privacy by default.
    26. Re:Lack of fuel by FlyHelicopters · · Score: 1

      Solar is expected to fall as low as 1c per kWh

      For what? The raw panels? The installed cost? The sellable cost?

      Since you quote it in kWh, I would have to assume you mean the sellable cost.

      Maybe it will get there, but it needs to drop an order of magnitude or more to get there, it is way far away from that happening.

      Wind is already as low as 3.65c per Kwh in places.

      Where? Does that price include any tax breaks or other subsidies? It is closer to double that price in Texas and we have more wind power than any other US state.

      Solar panels are dropping in price about 40% per annum, that's is extremely fast and invalidates your claim that the price won't drop fast enough

      That can't keep up, and there are external reasons besides the cost of making panels that it has been dropping. It also is the cost of raw panels, not the cost of installation.

      Even if the panels were free, it largely doesn't matter. The cost to install solar has little to do with the cost of panels, those are already cheap.

      Also the race is on across the world to create better cheaper batteries, the best solutions use harmless abundant cheap recyclable chemicals.

      Yea, it has been that way for a long time... call me when it happens...

      This could all be solved tomorrow if we invented cold fusion as well, but until that happens, we shouldn't count on it.

      There are other math problems that you miss. Even if the entire world-wide production of cars were instantly changed to EVs, it would still take 27 years to replace all the cars in the world with an EV.

      Since that ISN'T going to happen, we'll still be driving hundreds of millions of gas cars in 2,100.

      I'm totally on board with the problem, but the solutions would require far more than humanity is actually willing to do.

    27. Re:Lack of fuel by Cyberax · · Score: 1

      We will not run out of uranium any time soon, even with the current uber-wasteful use.

    28. Re:Lack of fuel by mdsolar · · Score: 1

      Red Book says eighty years at the current rate of use.

    29. Re:Lack of fuel by Cyberax · · Score: 1

      In the known reserves. And the current rate of use can easily be lowered 2-3x by simple reprocessing or reactors that allow deeper burning of U-235. There's no need for breeders or extensive reprocessing.

      It's actually the reason the world is so anemic on thorium and breeder reactors - the industry knows that in the near future (next 50 years) there's going to be no problem with uranium supply. And if the difficulties become apparent then fairly simple fixes can extend the supply. So why bother?

    30. Re:Lack of fuel by mdsolar · · Score: 1

      Fission will be displaced by fusion on that timescale.

    31. Re:Lack of fuel by Applehu+Akbar · · Score: 1

      He's also ignoring that if demand for uranium were to run far enough ahead of mining rate that the price increases ten times, as petroleum already did not long ago, it would become profitable to extract uranium from seawater. The huge desalination program that California will need in years to come could actually pay for itself and then some.

    32. Re:Lack of fuel by FuzzMaster · · Score: 1

      where is the incentive to go to extreme efforts?

      Inherent lack of carbon emission.

    33. Re:Lack of fuel by mdsolar · · Score: 1

      Hard to see why choose the most expensive option.

    34. Re:Lack of fuel by Anonymous Coward · · Score: 0

      While all that is true I'm not sure trading global warming for a nuclear dense future will turn out to be better. People are absurdly greedy and short sighted. Japan disposes of nuclear waste by throwing it into ocean trenches and pretending it will get pulled under ground by plate tectonic subduction, when in reality the vessels probably would leak before then and would be crushed and rupture and leak even if their plan worked. We are talking about generating enough nuclear waste to make the entire planet very hostile to human life yet haven't really got a good track record of creating strong and stable social institutions at a global scale to manage that nuclear waste. Do you trust Russia, China, Iran and India to be responsible with the reactors they have or plan to build very soon? Do you trust any country in Africa to do so? While it may be technically feasible, I don't believe a mad rush to nuclear is likely to be accomplished without mismanaging the byproducts on a scale large enough to cause large problems of its own. I'm a pro nuclear kind of guy in general, but that's not a genie you want getting out of the bottle.

    35. Re:Lack of fuel by friedmud · · Score: 1

      "But there is no way that you take spend fuel from one reactor and put it into another one and continue burning it there."

      That's not exactly true. Just the U-238 that's left in "used" fuel is good enough to sustain a critical reaction in a fast reactor or possibly even a thermal reactor that can utilize natural uranium like CANDU. However, there are many issues that keep this from being a reality (mostly economics).

    36. Re:Lack of fuel by friedmud · · Score: 2

      "Uranium reactors, regardless of 'Gen' use fuel that is enriched to about 6%. That means 6% fissionable Uranium, 94% non fissionable."

      Two words to learn:

      Fissile: Can be easily fissioned with "thermal" neutrons (typically, neutrons around 0.025 eV... also known as "slow" or "low energy" neutrons).

      Fissionable: Can fission. Period.

      U-235 is "fissile" while U-238 is "fissionable".

      The "94%" you talk about (BTW: in the U.S. the limit for enrichment is 5%, most fuel is enriched to 4.8% or so to leave a little bit of headroom) is U-238 and is definitely "fissionable". Several types of reactors have been built over the years that can burn U-238 directly including fast reactors and others that are "high neutron economy" reactors like CANDU, Magnox and AGR which can burn Uranium with very little or no added enrichment.

      Fast reactors can work with U-238 because above 1 MeV the fission cross-section for U-238 is large enough (and the capture cross-section simultaneously low enough) that U-238 can sustain the nuclear reaction. This works because neutrons are born with energies ranging from keV up to 20 MeV (although, the average is around 2 MeV).

      CANDU can burn natural uranium (Which is only about 0.7% U-235) because of good neutron economy. It utilizes "heavy water" (deuterium/H-2) to slow down the neutrons. H-2 has an almost negligible capture cross-section meaning that nearly all of the neutrons that are born make it down to "thermal" energies where it will fission with U-235. However, since it is still relying on the small amount of U-235 the fuel is depleted fairly quickly, requiring constant refueling (not joking, it is literally refueled continuously). It would certainly be able to burn "spent" light-water reactor fuel though... that "measly" less than 1% (not 3% like you state) enriched stuff would actually be more than the amount of U-235 that typically goes into a CANDU reactor! Of course, some of the built up fission products are neutron poisons, so that would reduce the neutron economy a bit... but it would still be able to maintain a critical reaction.

      However, this is not done because it's just not economically feasible. Getting the old fuel from LWRs and shipping it somewhere to be disassembled (which has to be done carefully because when it comes out of the reactor it stays hot (both thermally and radioactivity wise) for quite a while) and put into fuel forms that would work in a CANDU reactor would cost way more than the effort is worth.

      It is interesting that you simultaneously insult someone else, screw up a bunch of facts AND manage to make a (terrible) misogynistic joke all in the same post. That certainly undermines your credibility in my eyes...

    37. Re:Lack of fuel by rubycodez · · Score: 1

      how ignorant are you? Even "depleted" uranium can be burned in the right type of reactor. Anyway, so called "spent fuel" can be burned in reactors such as fluoride salt reactors. The 1/7 figure is just fact, as is burning to short lived isotopes.

      By the way, I'm an engineer who has worked in nuclear power plant and high energy physics labs, what are your credentials exactly?

    38. Re:Lack of fuel by MachineShedFred · · Score: 1

      Now only if there was some other kind of nuclear fuel besides Uranium, which is also more common. And, 80 years is a pretty long time to come up with something better, or start breeding fuel from the already-dug-up depleted uranium sitting around from the arms race. Worst case, that's 80 years of energy production that didn't involve creating fly ash ponds and blowing carbon into the air.

      Also, [citation needed]. Don't come in here with some statement of fact that is meant to dismiss someone's argument, without backing it up.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    39. Re:Lack of fuel by MachineShedFred · · Score: 1

      I'm sure that the mining and enrichment environmental costs (optional btw - there are reactor designs that run on unenriched natural uranium) are far less than taking the top off of a mountain in Eastern Kentucky and burning it.

      Because that's what we're doing today.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    40. Re:Lack of fuel by MachineShedFred · · Score: 1

      "Spent" fuel is not able to sustain a fission reaction, because the daughter products of what has already fissioned absorb neutrons rather than capture and fission the way that Uranium does. After enough fission events, the neutron absorption becomes a problem and the reaction is no longer self-sustaining.

      Remove the "neutron poisons" that make up anywhere from 1% to 5% of the "spent" fuel, and you are left with a whole lot of "unspent" fuel ready to go right back into the reactor. But we don't do this today because of a political decision made in the 1970s that was mostly horseshit then, and complete horseshit now - an argument about nuclear weapons proliferation, where none of the "spent" fuel from nuclear reactors is suitable for weapons production to begin with.

      What you see as "spent" fuel, I see as "inefficiently used" fuel that science and engineering already has a solution for.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    41. Re:Lack of fuel by MachineShedFred · · Score: 1

      That's the dumbest thing I think you've ever said. Geiger counters don't work through hundreds of feet of rock. Uranium exploration isn't done by having some guy walk around waving a Geiger counter around and taking a note with a handheld GPS.

      You're clearly a smart person - I don't know why you make these ridiculously simple and vastly inaccurate arguments. They detract from your argument.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    42. Re:Lack of fuel by Anonymous Coward · · Score: 0

      So, you resort to breeders like all the rest. Predictable are you.

    43. Re:Lack of fuel by Anonymous Coward · · Score: 0

      And yet the Red Book is published. You perhaps it is who is misinformed.

    44. Re:Lack of fuel by angel'o'sphere · · Score: 1

      Sigh ...
      Remove the "neutron poisons" that make up anywhere from 1% to 5% of the "spent" fuel, and you are left with a whole lot of "unspent" fuel ready to go right back into the reactor.

      That is wrong.

      Sorry, made a nice picture using 'code' tags but the lameness filter does not allow it to get through.

      Fuel consists of about 6% fissionable uranium and 94% non fissionable. If 3% of the first 6% is spent, you can ofc "remove" the decay products, then you end up with 3% fissionable uranium, 94% non fissionable and a "gap" of 3% missing "stuff". That yields "fuel" that has not enough fissionable uranium to sustain a fission process. Hence you either have to get rid of "47%" of the non fissionable uranium to have a half as big pile of fuel than before, but enriched to 6% (that is what is done in reprocessing), throw away the "47%" non fissionable uranium, and add another block of 6% enriched uranium to have in the end the same amount of fuel *or* you have to add 3% pure fissionable uranium to the spent fuel. However that would be close to impossible.

      So: 50% of the original "spent" fuel is ending as "47%" non fissionable uranium and "3%" decay products somewhere in a waste deposit.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    45. Re:Lack of fuel by angel'o'sphere · · Score: 1

      Even "depleted" uranium can be burned in the right type of reactor.
      No it can't

      I suggest to read a book about it.

      You can breed it to plutonium if that is what you mean ... but that does not 'fission' depleted uranium, it fissions plutonium, an obvious no brainer.

      Anyway, so called "spent fuel" can be burned in reactors such as fluoride salt reactors.
      No it can't. It consists either of _true waste_ (the decay products) which does not "burn" or "depleted uranium" as mentioned above which needs to be bread up. So: why anyone do that when he could use a thorium reactor?

      Oh, another problem: large scale molten salt reactors don't exist yet" .... perhaps this fact escaped your attention.

      By the way, I'm an engineer who has worked in nuclear power plant and high energy physics labs, what are your credentials exactly?
      More or less the same's as yours, we are obviously both high skilled scientific/engineering people who have no diploma in nuclear physics ;D What the fuck do I care in what kind of plant you planned or supervised the placement and welding of pipes? Rofl ...

      The last 'electrical' engineer who wanted to impress me with his superior knowledge about how energy is produced claimed to be the second or third responsible person in running a big US hydro plant. For some reason he talked about how batteries are charged ... and insisted over several posts that you switch the battery in serial with the charger ... (+ to - and - to +) ...

      Why you bring up your engineering skills, to emphasize your non existing knowledge, about how fission works, is beyond me.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    46. Re:Lack of fuel by angel'o'sphere · · Score: 1

      It is interesting that you simultaneously insult someone else, screw up a bunch of facts AND manage to make a (terrible) misogynistic joke all in the same post. That certainly undermines your credibility in my eyes...
      Oh, if there was a joke it might have been by mistakenly, more likely I meant it seriously.
      Point is, the people who simply say: uh you can fission U238 quite simple ... and spent fuel is not really spent, you only have to reprocess it etc. simply have no clue.

      And I lack the in depth knowledge and patience of you to explain the stuff you just wrote over and over again. Perhaps I should make myself a /. journal entry and just refer to it all the time.

      I'm not interested enough in reactor construction to remember how exactly you can make an nuclear industry that runs on U238 ... a single reactor, as you explained quite nicely won't cut it.

      However I have to admit I did not pay attention that CANDU and aCANDU reactors are already established reactor types and in use, I stand corrected.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    47. Re:Lack of fuel by angel'o'sphere · · Score: 1

      People like me who point out incorrect (or even insulting) usage of words will doom you?

      Wow ... did not know that you are that fragile. Sorry, I will refrain from further corrections regarding the vocabulary you use.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    48. Re:Lack of fuel by ericloewe · · Score: 1

      Sure, play the victim card.

    49. Re:Lack of fuel by MachineShedFred · · Score: 1

      You forgot about neutron flux and capture. Non-fissionable Uranium doesn't just sit there inert. It captures a neutron to become U-239, decays to Pu-239, which is fissionable. It will also capture more neutrons to become Pu-240 and Pu-241, which are also fissile.

      This is why reactor grade Uranium isn't highly enriched - they enrich it just enough to get a controllable sustained reaction, and let physics do it's thing.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    50. Re:Lack of fuel by MrKaos · · Score: 1

      CANDU

      It's also fair to point out that these types of reactors have had some severe safety problems, in the country of design no less, that shut half of them down and that they generate greater quantities of spent fuel than light water reactors.

      Further more, I understand that they generate large quantities of tritium and expel it into the environment, large quantities of Plutonium 239 which drives weapons proliferation and are acknowledged as harder to operate safely than a American reactor.

      I understand the enthusiasm for the technology but these are some pretty serious downsides as well aren't they?

      --
      My ism, it's full of beliefs.
    51. Re:Lack of fuel by rubycodez · · Score: 1

      depleted uranium still contains U-235, usually 0.3% percent or less by DOE definition. That's all it takes, a TWR of proper design for example can burn depleted uranium. You should research these facts before spewing.

      I do have "diploma in nuclear physics"

    52. Re:Lack of fuel by angel'o'sphere · · Score: 1

      I do have "diploma in nuclear physics"
      That is good to know ... but then again you are extremely bad in disclosing your knowledge.

      If you mean a Traveling wave Reactor: perhaps you have not noticed, they don't exist They are a theoretical concept, no idea if any one even ever build a test reactor. China seems to plan to build a 600MW prototype, though.

      Now back to the topic: how to you ignite a TWR?

      Oh, now Mr. Nuclear Physicist: we are back to square one. You need an initial charge of ordinary enriched fuel.

      However I agree, they would be a benefit regarding recycling/reprocessing.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    53. Re:Lack of fuel by angel'o'sphere · · Score: 1

      Depends on the reactor type. Most reactors in commercial use don't breed Pu-239.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  9. Wow! by Anonymous Coward · · Score: 0

    A climate scientist making a hand wavy argument. Big surprise! :P

  10. money by Anonymous Coward · · Score: 0

    Look to where they have invested their money. All will be revealed.

  11. Solved problem by thegarbz · · Score: 5, Insightful

    If you're going to complain about high construction costs it's worth looking at what has caused those costs. Nuclear power is completely unaffordable. We simply can't build any more plants. Yet somehow the world has built hundreds already with many in the USA which currently has very cheap power. The east is still building them. So what is this mythical high cost? After all the cost of materials has reduced, the cost of construction has only increased marginally and the designs these days aren't very complicated from a control perspective.

    Oh that's right regulatory overhead.

    1. Re:Solved problem by Anonymous Coward · · Score: 1

      America (won't speak for the rest of the world) also has a ZERO problem in building billion dollar facilities that only get used 8-12 times a year for the intended purposes. NFL sports stadiums. I know they get used for other things on the side during off season, but the boat show has never threatened to move to another city waiting to build a stadium for them.

    2. Re:Solved problem by Anonymous Coward · · Score: 0

      Oh that's right regulatory overhead.

      That's the easy thing to blame.

      But in reality, the utility companies don't want nuclear, it's too much of a threat to their profits. Cheap, clean, nuclear would destroy the fossil fuel industry, devaluing hundreds if not thousands of plants, and shutting down industry around the world.

      What will the world do?

    3. Re:Solved problem by DesertNomad · · Score: 1

      https://en.wikipedia.org/wiki/... Palo Verde NGS, about 50 miles west of here, produces power at an amortized cost way lower than a coal or gas plant. Only thing that beats it is hydro, and we only have so much of that around here... Manageable technology, plentiful fuel, no emissions, main challenge is coolant water, but even that can be accommodated.

    4. Re:Solved problem by siphonophore · · Score: 1

      Hey hey hey---give some credit to our clueless justice system, too!

      --
      Dance like you're hurt, Love like you need money, and work when somebody's watching.
      -Scott Adams
    5. Re:Solved problem by Anonymous Coward · · Score: 0

      How about the costs of keeping nuclear trash savely away from polluting water and from terrorists? Thousands of years of arm guards and refurbishing containers. Besides the millions in insurance that normally the firms cannot pay and the states have to come up with. These "small externalities" as the nuclear lobby calls them account for billions. It is an expensive and dangerous technology.

    6. Re:Solved problem by edtice1559 · · Score: 1

      Maybe we can find a way to put wind turbines in those stadiums when they're not being used!

  12. Regarding cooling, coal more energy dense by mdsolar · · Score: 1, Insightful

    Thermal power plant need cooling and nuclear need the most to protect the fuel. Already cooling resouces are limited and will become more so. http://www.bloomberg.com/news/...

    1. Re:Regarding cooling, coal more energy dense by ericloewe · · Score: 1, Insightful

      Wow, that is some incredible circular logic.

      Global Warming is threatening our ability to cool stuff using water [Citation needed], by the way.
      We can't stop Global Warming using nuclear power because we won't be able to cool stuff using water.

      Do everyone a favor and stop spreading FUD.

    2. Re:Regarding cooling, coal more energy dense by khallow · · Score: 0

      Already cooling resouces are limited and will become more so

      And we're five orders of magnitude away from exhausting those cooling resources (direct heat from human sources is well below the heat radiated from Earth). How about giving us a problem that is actually a problem?

    3. Re:Regarding cooling, coal more energy dense by tylersoze · · Score: 1

      Well that is definitely a consideration that would need to be taken into account in the short term, but yeah is a circular argument that shouldn't take nuclear off the table.

      On a minor note, any power generation technology that isn't using the energy from the sun is technically contributing to warming the Earth since we're liberating energy that is currently stored. Although I presume that's probably irrelevant since that eventual thermal energy is radiated from the Earth and small compared to the overall energy radiated. Global warming is the problem with those products of our current energy production methods being dumped into the atmosphere preventing that thermal energy from escaping.

    4. Re:Regarding cooling, coal more energy dense by Anonymous Coward · · Score: 1

      No more circular than a positive feedback when discussed as solely the mechanism for the feedback is circular logic.

      Yes, GW is affecting our ability to USE nuclear power. France has had to shut down most of their nuclear power stations in heatwaves recently because the water is too hot to use as coolant without killing wildlife.

      Add to that the plentiful water in the ocean means that many nukes are placed at the seashore, near the sea level, to reduce the cost of pumping the water up. And GW will cause sea level rise and higher storm surges that put the current crop at risk, and any future ones may have to be closed down due to risk of flooding long before they make their return on investment.

      This is not circular logic, it's just the facts.

    5. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 0

      No, we can't replace coal with nuclear because cooling resouces are already strained with coal. You can go up in efficency with natural gas, but not down with nuclear. Best to limit use of thermal generation going forward.

    6. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 1

      RTFA

    7. Re:Regarding cooling, coal more energy dense by khallow · · Score: 1

      So no answer then.

    8. Re:Regarding cooling, coal more energy dense by ericloewe · · Score: 1

      If (big if there) direct warming of the Earth is an issue with Nuclear, just build a few more and use the power to trap carbon dioxide. I hear long chains of carbon with hydrogen are quite easy to store underground. Bam, less greenhouse effect, more cooling and the waste heat problem is solved. If it even exists.

      As a bonus, apparently, these long chains also work well as a fuel, so it would be a carbon-neutral solution for applications where batteries or similar technologies won't work (like aircraft).

    9. Re:Regarding cooling, coal more energy dense by Anonymous Coward · · Score: 0

      I assume you're thinking using uranium based nuclear which is water cooled. Realistically, for wide spread nuclear, one would want to use LFTRs since they're safer to operate, the produce electricity at a higher efficiency and thorium is much more abundant than uranium. Also the waste products are more easily handled than with uranium based reactors. And the bonus, they don't use water to cool themselves, they use liquid fluoride salts. And back to the improved safety, if something goes wrong and the reactor gets too hot, it self moderates and stops the reaction on its own since thorium absorbs neutrons when it gets too hot.

    10. Re:Regarding cooling, coal more energy dense by ravenshrike · · Score: 2

      Yes, uranium reactors need massive amounts of cooling. Thorium reactors don't. Given the immense reserves of thorium on the planet(as common as lead) if the greens had been pushing that since the 70's, we could have eliminated coal completely and the majority of oil and LNG usage within the next 30 years.

    11. Re:Regarding cooling, coal more energy dense by ericloewe · · Score: 2

      That is an idiotic statement (which, given your general tone, doesn't surprise me).

      By not contributing to global warming, "cooling resources" become more plentiful. You are still trapped in your circular logic.

      Let's take this opportunity to look at some numbers. Apparently, worldwide energy consumption is between 10TW and 20TW, depending on whose number you use. Radiation from the sun dumps around 120 000TW into the planet. Assuming all energy consumed ends up as heat and ignoring the fact that some of the incoming energy will be stored (photosynthesis) or used for the 10-20W mentioned above (wind, solar), we're still talking about a factor of 6 000. It not a drop in the figurative bucket, but it's not much more.

      Let's assume even that small additional source of heat needs to be compensated for. Well, that's easily accomplished by trapping carbon dioxide, reducing the greenhouse effect and allowing for more heat to radiate out into space. A forestation campaign would help a lot in this regard, but converting carbon dioxide into hydrocarbons is also a valid solution - the catch is that it requires the development of better processes. The advantage is that it also allows for traditional fuels to be synthesized in a carbon-neutral way, making this an easy transition for the big sector that needs them, aviation.
      Ultimately, a mix of solutions would have to be adopted, according to the desired concentration of atmospheric carbon dioxide. Even if CO2 trapping turns out not to be viable, the massive decrease in CO2 output would go a long way towards keeping global warming at manageable levels.

      Of course, this all hinges on nuclear power being adopted on a much more massive scale, which presents a number of engineering challenges which will have to be overcome. I'd say that's better than sitting around saying "But it won't work! Let's not do anything instead!", because *that* is the realistic alternative.

    12. Re:Regarding cooling, coal more energy dense by fnj · · Score: 1

      Yes, uranium reactors need massive amounts of cooling. Thorium reactors don't

      Bwahahaha.

    13. Re:Regarding cooling, coal more energy dense by angel'o'sphere · · Score: 2

      Why you need a citation for a no brainer is bejond me ;)

      We can't stop Global Warming using nuclear power because we won't be able to cool stuff using water.
      Do you know why Germany is selling so much power to France during summer time?

      I guess not. It has something vague to do with cooling of nuclear power plants, google is your friend, so I can spare me citations for what is considered 'common knowledge' here in my world ....

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    14. Re:Regarding cooling, coal more energy dense by FlyHelicopters · · Score: 1

      No, we can't replace coal with nuclear because cooling resouces are already strained with coal.

      Then what would you replace coal with?

      Because it isn't going to be wind and solar...

      You have nuclear... or you have more coal... or perhaps some natural gas/oil tossed in there for good fun...

    15. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 1

      You are being dense now. Gas plants are 60% efficient, coal, 40, and nukes 30. Nukes are stuck down there because the fuel is fragile and can't operate at high temperature. To get the same amount of electricity, they need much more water for cooling. Thus, you can't replace coal with nukes, you can only substitute less generation when the cooling resource is maxed out.

    16. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 1

      TFA has your answer. You are being goofy.

    17. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 1

      There aren't any thorium reactors, but I recall the experiment aimed at one cracked pretty quick Not clear what cooling would be needed to avoid that, supposing it could be avoided.

    18. Re:Regarding cooling, coal more energy dense by khallow · · Score: 1

      Still no answer. Not even a copy/paste from the article which supposedly backs the original assertion that there are "cooling resources" which are sufficiently "limited" to matter.

    19. Re:Regarding cooling, coal more energy dense by ericloewe · · Score: 1

      It's still circular logic.

      Assuming there is a cooling bottleneck, that bottleneck is relieved by the much reduced CO2 output. Local concentrations of heat bothering you? Build plants next to the ocean. Instant giant heatsink. Lack of greenhouse heating compensates for the additional heat input.

      Let me preempt the next point: "It's dangerous to build them there!"

      Nope. It clearly isn't. Fukushima is pretty much the worst case scenario. That thing handled a massive quake *and* a massive tsunami. What brought it down? The fact that the emergency generators were at ground level. It's also ancient in every regard.

      Now, a question: What kind of fucking energy solution do you propose that does not involve localized heating? Photovoltaics? That's not an industrial-scale solution. It's cool to take advantage of wasted area, like rooftops and stuff, but it does not scale well. Wind? Temperamental, dubious environmental impact and probably not nearly enough to solve the problem.

      It boils down to this (no pun intended): Unless you come up with some magic way to directly convert heat to electricity efficiently (thermoelectric effects are woefully inefficient), you will have to cool things down. No amount of handwaving is going to fix that.

    20. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 0

      You may want to read Reinventing Fire. Technical info is there.

    21. Re:Regarding cooling, coal more energy dense by MrKaos · · Score: 1

      That is an idiotic statement (which, given your general tone, doesn't surprise me).

      Attaching yourself to an idealized version of nuclear power and calling someone and idiot before exploring the idea suggests it is too much mental energy for you to challenge your own assumptions. This behaviour has been here since long before you arrived, so don't take it personally, however I've found the Nuclear shilling and finger pointing generally ruin any fact based discussion by polarizing it.

      Please, you're not the only smart guy here. There is a place for idealistic thinking however a discussion about Nuclear power requires analytical and realistic thinking to resolve its challenges.

      Assuming, Let's assume

      I think you've made a few too many assumptions to justify your position. After burning coal and oil, the energy used in the production of concrete is the third biggest contributor to greenhouse gasses which is the biggest construction input to Nuclear power plants.

      The biggest carbon input to the nuclear fuel cycle is mining, where you need to process roughly 500 tons of rock to get a kilo of uranium and IIRC the carbon energetic input here is in the 100TW range to fuel the reactor over it's lifetime. The alternative, using of in-situ acid leach mining, highlights the problems of carbon capture as a process that is based on a set of flawed assumptions. If geological storage of these materials was viable then you would see it in use in the US, where in-situ acid leech mining was made illegal for the same liability issues that carbon capture will also face.

      1970's era vehicle technology is a interesting comparison (since where would a discussion on this subject be without another car analogy) that drew engine power to spin air pumps that injected pressured fresh air into the exhaust stream so that the overall vehicle emissions measured less at the tailpipe, even though the vehicle used more fuel to drive the pump to create the measurement. Carbon capture will require energetic inputs.

      If geological storage of hydrocarbons was viable, we would just leave them in the ground, but we can't because we've designed our economy around them and our main issue is changing the course of those massive entities.

      A forestation campaign would help a lot in this regard, but converting carbon dioxide into hydrocarbons is also a valid solution - the catch is that it requires the development of better processes. The advantage is that it also allows for traditional fuels to be synthesized in a carbon-neutral way, making this an easy transition for the big sector that needs them, aviation.

      This statement is why I have given you the benefit of the doubt. This is unexplored technology and itself would yield massive industry that, for once, might have a positive impact on the environment. One suggestion I would make is that it would be an ideal for rail and truck fuel. Turn your intellect to this - don't bother wasting your effort on nuclear.

      Of course, this all hinges on nuclear power being adopted on a much more massive scale, which presents a number of engineering challenges which will have to be overcome.

      The first being geological safe storage of spent nuclear fuel and before anyone points out *breeder* reactor technology, remember that these reactors *create* plutonium. Burner reactors could work *if* we solved the problem of storage and logistics and, *if* we solved the problems of energetic expenditure involved in disposing of these reactors. Funding exists for this reactor technology exists in the 2005 US Energy Act.

      The energy expenditure for *one* reactor decommissioning is around the 30-70TW range (citing Vattenfal *and* Storm) so with 400 odd reactors around the world we have a roughly 2800TW energy *debt* pending from existing nuclear reactors in the nuclear industry a decade or two after they are decommissioned. An energy debt that will have t

      --
      My ism, it's full of beliefs.
    22. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 1

      Looks like natural gas pulls ahead of coal. http://www.eia.gov/electricity...

    23. Re:Regarding cooling, coal more energy dense by Mashiki · · Score: 1

      You're an idiot. Current generations(Gen3/3.5 and 4) of CANDU reactors can already run on pure thorium. There are two-on-going uranium/plutonium to thorium retrofits and plans to build several new thorium reactors going on at this point as well in Canada. Not forgetting that there one based on CANDU designs and a successful working 10MW thorium reactor for a desalinization plant in Chile, it's in use to this day.

      --
      Om, nomnomnom...
    24. Re: Regarding cooling, coal more energy dense by Anonymous Coward · · Score: 0

      Um, not quite. Basic thermodynamics requires the plant to have a heat sink. The molten salt heats a secondary fluid via a heat exchanger, typically water, but it could be a gas. This fluid then flows through the turbine generating power. The problem is you can't take wet steam from a turbine exhaust and pump it back into the heat exchanger. You have to condense it which requires a water source. With a closed cycle gas turbine you would have a similar problem; you have to cool the gas to pump it back to the heat exchanger and so again you need water.

    25. Re:Regarding cooling, coal more energy dense by dryeo · · Score: 1

      Steam engines need massive amounts of water, as it boils away or more usually, cold water is used to condense the steam so that it can be reboiled and reused to turn a turbine.
      Just because the heat source changes to thorium doesn't change the fact that it is a steam engine producing electricity.
      Seems to me that liquid fluoride being used as coolant would still need water to cool it down as well.

      --
      https://en.wikipedia.org/wiki/Inverted_totalitarianism
    26. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 1

      What year are you writing from? Nothing in Chile in 2016.

    27. Re:Regarding cooling, coal more energy dense by FlyHelicopters · · Score: 1

      Natural gas is fine, but it isn't a long term solution, it still puts out too much CO2.

    28. Re:Regarding cooling, coal more energy dense by MrKaos · · Score: 1

      And we're five orders of magnitude away from exhausting those cooling resources

      How do you arrive at that figure?

      --
      My ism, it's full of beliefs.
    29. Re:Regarding cooling, coal more energy dense by MrKaos · · Score: 1
      --
      My ism, it's full of beliefs.
    30. Re:Regarding cooling, coal more energy dense by khallow · · Score: 1
      The amount of energy that arrives on Earth from sunlight in a year divided by the amount of energy that humanity consumes in a year. From this link, we have 89,300 TW of solar power on average falling upon Earth. It is then stated:

      This theoretical potential represents more energy striking the earthâ(TM)s surface in one and a half hours (480 EJ) than worldwide energy consumption in the year 2001 from all sources combined (430 EJ)

      EJ = exajoule. That's a bit under a factor of 10,000 (I should have said 4 orders of magnitude not 5). In other words, the Earth dissipates away all that sunlight energy every day and my view is that human activity would have to be of similar magnitude before there is a heat dissipation problem.

    31. Re:Regarding cooling, coal more energy dense by MrKaos · · Score: 1

      From the NRC's Engineering Analysis of the failure modes of Nuclear Reactors:

      Interfacing system loss-of-coolant accidents (ISLOCAs) are a class of accidents that can result in the over-pressurization and rupture of systems that interface with the reactor coolant system outside containment. ISLOCAs have been a concern with regard to public health risk due to the potential for fission product release directly to the environment, bypassing the containment structure. No ISLOCA events have been identified in the total U.S. operating experience (1969–1997). However, during the course of this study, one ISLOCA precursor was identified. The identification of only one ISLOCA precursor in the nearly 2,000 LERs over the nine-year study period is not unexpected, given that only LERs containing documented reactor trips or manual trips from power were included in the study set. The types of activities that would normally lead to the identification of an ISLOCA precursor—maintenance and testing on systems that interface with the reactor coolant system—are usually performed on interfacing systems while the plant is shutdown.

      The ISLOCA precursor event identified in this study did not result in a release of reactor coolant to the environment. The Arkansas Nuclear One Unit 1 event occurred as a result of a High Pressure Safety Injection System (HPSI) check valve failing to reseat along with the presence of a differential pressure (d/p) condition between two primary loops due to a tripped reactor coolant pump. This d/p and the failed open check valve allowed reactor coolant system water to backflow outside of containment via the HPSI system. The backflow of the high-temperature reactor coolant heated the HPSI piping enough to cause some combustible material in contact with the piping to start smoldering.

      So that is talking about steam hot enough to be a potential ignition source which shows why cooling is *the* critical system of a Nuclear reactor. Additionally there is a short discussion on the impact of drought on Nuclear reactors is discussed on page 4 of this report from the University of Geneve.

      As with all basis design issues in nuclear reactors they are only exposed under certain circumstances - that's just how they work. You can mitigate them by designing processes around them to avoid the situation and look for the events that can initiate that form of accident. Considering it is a primary system we are talking about, it is a low probability accident with a very high impact that the NRC's risk analysis describes as neither trending up or down when the study was down in the 90's.

      I think the point you are missing is things that change that risk. The NRC's own reporting stated:

      Although no ISLOCA has caused core damage, accumulated operational experience, both in the United States and abroad, indicates that ISLOCA-like events have occurred at a rate higher than expected.

      --
      My ism, it's full of beliefs.
    32. Re:Regarding cooling, coal more energy dense by Mashiki · · Score: 1

      This one, I just happen to be using the same rules you do when you're making up bullshit.

      --
      Om, nomnomnom...
    33. Re:Regarding cooling, coal more energy dense by MrKaos · · Score: 1

      In other words, the Earth dissipates away all that sunlight energy every day and my view is that human activity would have to be of similar magnitude before there is a heat dissipation problem.

      How do you get cooling water to the reactor to carry heat to the environment to dissipate if water resources are limited?

      --
      My ism, it's full of beliefs.
    34. Re:Regarding cooling, coal more energy dense by khallow · · Score: 1

      How do you get cooling water to the reactor to carry heat to the environment to dissipate if water resources are limited?

      You would use your limited water resources to get rid of your limited waste heat. It's all finite right?

    35. Re:Regarding cooling, coal more energy dense by MrKaos · · Score: 1

      How do you get cooling water to the reactor to carry heat to the environment to dissipate if water resources are limited?

      You would use your limited water resources to get rid of your limited waste heat. It's all finite right?

      They were talking about reactors sucking up river sediment because the rivers are so low. Are you saying you would reduce the generating capacity to match the amount of water available?

      --
      My ism, it's full of beliefs.
    36. Re:Regarding cooling, coal more energy dense by khallow · · Score: 1

      They were talking about reactors sucking up river sediment because the rivers are so low. Are you saying you would reduce the generating capacity to match the amount of water available?

      They're talking about a need for redesigning water intakes to handle lower river levels. I've also heard that they're having problems with thermal pollution of the rivers in question. That indicates to me that plant should have one or more lakes that it draws water from and dumps heat to rather than drawing from the river directly.

      It's not a problem of water availability as I see it, but rather a problem of poor ability to draw water at low river levels combined with dumping heat directly to the river.

      Since the plants currently aren't engineered to handle these conditions (and may be unable to improve due to land restrictions), then yes, they should operate at reduced capacity when low river levels occur until the problem is fixed.

    37. Re:Regarding cooling, coal more energy dense by ericloewe · · Score: 1

      I think you've made a few too many assumptions to justify your position. After burning coal and oil, the energy used in the production of concrete is the third biggest contributor to greenhouse gasses which is the biggest construction input to Nuclear power plants.

      The biggest carbon input to the nuclear fuel cycle is mining, where you need to process roughly 500 tons of rock to get a kilo of uranium and IIRC the carbon energetic input here is in the 100TW range to fuel the reactor over it's lifetime. The alternative, using of in-situ acid leach mining, highlights the problems of carbon capture as a process that is based on a set of flawed assumptions. If geological storage of these materials was viable then you would see it in use in the US, where in-situ acid leech mining was made illegal for the same liability issues that carbon capture will also face.

      1970's era vehicle technology is a interesting comparison (since where would a discussion on this subject be without another car analogy) that drew engine power to spin air pumps that injected pressured fresh air into the exhaust stream so that the overall vehicle emissions measured less at the tailpipe, even though the vehicle used more fuel to drive the pump to create the measurement. Carbon capture will require energetic inputs.

      If geological storage of hydrocarbons was viable, we would just leave them in the ground, but we can't because we've designed our economy around them and our main issue is changing the course of those massive entities.

      Too many assumptions? They're all conservative. If I didn't assume what I did, my point would be *strengthened*.

      Several additional points:

      With nuclear power, you don't need the vast majority of that carbon output. That's the thing, we're *replacing* it.

      Carbon trapping requires energy. Of course! Just build more plants and you can do it in a carbon-negative way.

      Geological storage is not going to happen that soon. The idea is long-term, once a major part of the world's energy consumption is shifted to nuclear power. Claiming it won't happen because we're using oil is circular reasoning, since the goal is to not use oil (as much as possible).

      100TW is not a unit of energy. So I have no idea what your number is supposed to mean. TWh? That is just not a credible number. TWs? TWm?

      A forestation campaign would help a lot in this regard, but converting carbon dioxide into hydrocarbons is also a valid solution - the catch is that it requires the development of better processes. The advantage is that it also allows for traditional fuels to be synthesized in a carbon-neutral way, making this an easy transition for the big sector that needs them, aviation.

      This statement is why I have given you the benefit of the doubt. This is unexplored technology and itself would yield massive industry that, for once, might have a positive impact on the environment. One suggestion I would make is that it would be an ideal for rail and truck fuel. Turn your intellect to this - don't bother wasting your effort on nuclear.

      It's also only viable with a dense, carbon-neutral or better energy source. The only thing that fits the bill is nuclear power.

      The first being geological safe storage of spent nuclear fuel and before anyone points out *breeder* reactor technology, remember that these reactors *create* plutonium. Burner reactors could work *if* we solved the problem of storage and logistics and, *if* we solved the problems of energetic expenditure involved in disposing of these reactors. Funding exists for this reactor technology exists in the 2005 US Energy Act.

      The energy expenditure for *one* reactor decommissioning is around the 30-70TW range (citing Vattenfal *and* Storm) so with 400 odd reactors around the world we have a roughly 2800TW energy *debt* pending from existing nuclear reactors in the nuclear industry a decade or two after they are decommiss

    38. Re:Regarding cooling, coal more energy dense by ericloewe · · Score: 1

      Of course cooling is critical. It does not address my criticism.

      Using nuclear power reduces global warming, avoiding this scenario of unavailable cooling.

      The quote also has nothing to do with the issue at hand, it's just an incident caused by hardware failure. There's nothing spectacular about it, nor does it relate to unavailable external cooling.

    39. Re:Regarding cooling, coal more energy dense by ericloewe · · Score: 1

      Sounds mostly like green fantasies. It's also very limited in scope (no, the US is not the whole world, get over it).

      Energy consumption is not going to decrease. At best, it will stay stable due to efficiency improvements counteracting population growth and increased usage in developing countries.

      Planning a solution that relies on reduced power consumption is unrealistic and irresponsible.

    40. Re:Regarding cooling, coal more energy dense by MrKaos · · Score: 1

      They're talking about a need for redesigning water intakes to handle lower river levels. I've also heard that they're having problems with thermal pollution of the rivers in question. That indicates to me that plant should have one or more lakes that it draws water from and dumps heat to rather than drawing from the river directly.

      Interesting. I heard the issues were around river sediment fouling valve systems.

      It's not a problem of water availability as I see it, but rather a problem of poor ability to draw water at low river levels combined with dumping heat directly to the river.

      That a lot of re-engineering you are talking about, you can't exactly move the reactor. Do you propose a solution?

      Since the plants currently aren't engineered to handle these conditions (and may be unable to improve due to land restrictions), then yes, they should operate at reduced capacity when low river levels occur until the problem is fixed.

      Indeed.

      --
      My ism, it's full of beliefs.
    41. Re:Regarding cooling, coal more energy dense by khallow · · Score: 1

      That a lot of re-engineering you are talking about, you can't exactly move the reactor. Do you propose a solution?

      Well, case by case. If the future value of the reactor justifies the re-engineering costs, then do it. Generic, but straightforward.

    42. Re:Regarding cooling, coal more energy dense by MachineShedFred · · Score: 1

      Good thing there are reactor designs that can use coolants that are not strictly water. Like molten salts, helium gas, lead-bismuth eutectic, etc.

      Oh, and they usually run at hotter temperatures, which gives us more heat to do neat things with, like cracking water into hydrogen so we can solve the mobile energy usage problem too.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    43. Re:Regarding cooling, coal more energy dense by Anonymous Coward · · Score: 0

      Yeah, and none of the issues that you mention could ever be solved through engineering. No wait, all of them can be.

    44. Re:Regarding cooling, coal more energy dense by Anonymous Coward · · Score: 0

      False.

      Or you could use a reactor design that isn't cooled with water at all, which exist.

      More FUD. Shocking.

    45. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 1

      No, you've misunderstood. Our net electricity consumption stays steady but our gross energy consumption falls. http://www.eia.gov/electricity... Natural gas is more effecient than coal.

    46. Re:Regarding cooling, coal more energy dense by Anonymous Coward · · Score: 0

      Wind is coming up nicely, should replace natural gas.

    47. Re:Regarding cooling, coal more energy dense by doom · · Score: 1
      "I guess not. It has something vague to do with cooling of nuclear power plants, google is your friend, so I can spare me citations for what is considered 'common knowledge' here in my world ...."

      Your world is a strange bubble reality in which the IPCC has seemingly missed that nuclear power doesn't work in the summer time.

      By the way, the efficiency of solar power panels decline at higher temperatures. Strangely enough, thermodynamics applies to all power sources.

    48. Re:Regarding cooling, coal more energy dense by doom · · Score: 1

      You are being dense now. Gas plants are 60% efficient, coal, 40, and nukes 30.

      What the hell kind of efficiency are you talking about? Coal plants are really efficient at spewing GHG, and the natural gas industry is only a little better. Even if you really understood something about thermal efficiency (you clearly don't) you'd go with nukes rather than your "more efficient" gas and coal, because nuclear's GHG emissions are down near zero (full life cycle numbers are better for nukes than solar: you know that, right?).

      Anyway, maximum thermal efficiency (web search: "Carnot Cycle") is one minus the high temperature over the low temperature. It's no different for coal or for nukes.

      There's a kernel of truth in the notion that efficiency declines when the temperature of your cold sink goes up, but the idea that nuclear is the only power source constrained by thermodynamics is completely crazy. (websearch: "charge carrier recombination").

    49. Re:Regarding cooling, coal more energy dense by doom · · Score: 1

      Sorry: thermal efficiency is one minus the the low temperature over the high temperature, of course, not the other way around. https://en.wikipedia.org/wiki/...

    50. Re:Regarding cooling, coal more energy dense by doom · · Score: 1

      By the way: the cooling under discussion has to do with how the plant as a whole transfers heat to its environment. Yes, it can be done without a cold water source (e.g. with big cooling towers, you can air cool the plant), but there are reasons you'd rather use water.

      The way heat is transferred inside of the main reactor loop also involves a choice of coolant, and it could be water, steam, molten salt, etc, but this issue has nothing to do with how plants exchange heat with the environment.

    51. Re:Regarding cooling, coal more energy dense by doom · · Score: 1

      The full life-cycle GHG emissions of nuclear power is extremely low, comparable to wind and solar. Check this figure from the IPCC: http://srren.ipcc-wg3.de/repor... Read the wikipedia write-up: https://en.wikipedia.org/wiki/... I wrote about this a while back using a WNA meta-study: http://www.dailykos.com/storie... There's this persistent myth among the anti-nuclear greens that nuclear power is a big CO2 emitter, but it's based on cherry-picking some discredited studies and ignoring anything that contradicts what you want to believe. This is really no better than the way the global warming denialists rely on minor figures like Singer and Seitz.

    52. Re:Regarding cooling, coal more energy dense by doom · · Score: 1

      And quoting that abstract:

      Using a coupled hydrological-electricity modelling framework with data on 24,515 hydropower and 1,427 thermoelectric power plants, we show reductions in usable capacity for 61-74% of the hydropower plants and 81-86% of the thermoelectric power plants worldwide for 2040-2069. However, adaptation options such as increased plant efficiencies, replacement of cooling system types and fuel switches are effective alternatives to reduce the assessed vulnerability to changing climate and freshwater resources. Transitions in the electricity sector with a stronger focus on adaptation, in addition to mitigation, are thus highly recommended to sustain water-energy security in the coming decades.

      I do not think this study does what you want it to.

    53. Re:Regarding cooling, coal more energy dense by david_thornley · · Score: 1

      How does thorium break the Carnot cycle? To get useful energy, you have to have some stuff that is at a higher temperature than some other stuff. Typically, this means that the reactor heats something fluid, which is used in conjunction with cooler stuff. If the heat doesn't bleed away somehow, the whole system will become the temperature of the fluid eventually, destroying any power possibility. Therefore, you have to be able to dump heat as fast as you make it in order to keep the power generation going, and this normally means active cooling. You can't use refrigeration because that would take more power than you're producing, so you need some external heat sink, usually water.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
    54. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 1

      You seem very confused on this topic.

    55. Re:Regarding cooling, coal more energy dense by doom · · Score: 1

      Allow me to try again. You just cited some numbers: "Gas plants are 60% efficient, coal, 40, and nukes 30."

      Where did these numbers come from? Got links?

      If you're going to talk about "efficiency", you should really be able to explain what you mean.

    56. Re:Regarding cooling, coal more energy dense by MrKaos · · Score: 1

      Too many assumptions? They're all conservative. If I didn't assume what I did, my point would be *strengthened*.

      Based on the sheer credibility of the asterixs around the word *strengthened* - who can argue with *that*.

      With nuclear power, you don't need the vast majority of that carbon output. That's the thing, we're *replacing* it.

      That's interesting so how would you mine the ore. That takes energy. Perhaps you know what yield, in grams per ton of ore, is the minimum before Nuclear energy is no longer viable?

      I'm assuming you don't know.

      Carbon trapping requires energy. Of course! Just build more plants and you can do it in a carbon-negative way.

      Should we continue to build the reactor plants using concrete or are you assuming they are built from origami?

      Geological storage is not going to happen that soon. The idea is long-term, once a major part of the world's energy consumption is shifted to nuclear power.

      Let's assume it's never going to happen.

      Claiming it won't happen because we're using oil is circular reasoning, since the goal is to not use oil (as much as possible).

      Claiming everybody is using circular logic is circular logic.

      100TW is not a unit of energy. So I have no idea what your number is supposed to mean. TWh? That is just not a credible number. TWs? TWm?

      You said: Apparently, worldwide energy consumption is between 10TW and 20TW the same measure you used in your post that I replied to. So I'm assuming your own numbers aren't credible or are you just being pedantic.

      It's also only viable with a dense, carbon-neutral or better energy source. The only thing that fits the bill is nuclear power.

      So we can assume it will never happen.

      Storage is a solvable problem. We're talking about small volumes (in the grand scheme of things) of solids which do not tend to spread.

      I assume you know who Dixie Lee Ray was, and when *she* said it would be solved?

      It's also temporary, as you imply, until burner reactors are available.

      I'll assume you have no idea what that is, how it works, why it's important and what obstacles it faces.

      Let's also consider the fact that we have to store massive amounts of waste from burning coal. Storing nuclear waste is much simpler and much safer.

      I'm assuming you don't know what Plutonium Chloride does in the water table?

      As for the energy required for decommissioning, again, TW is not a unit of energy.

      I did give you the benefit of the doubt.

      But let's assume you're talking TWh. That amounts to ~10 years of output, out of 50ish. Yes, it's significant, but it's the worst case using what looks like inflated energy costs. Even then, nuclear power still works.

      A brand new AP1000 reactor will produce 300TW HOURS over it's lifetime with 50TW HOURS used for decommissioning and another 100TW HOURS used to fuel it, per reactor, explain to me how that would work?

      *The figures I supplied you were from works used by the IPCC to assess the viability of nuclear power. The other was from peer reviewed works with contributions from over 10 Universities around the world, including CERN. They weren't assumptions, they were calculated using industry standard measurements for assessing industrial activity.*

      The real issue you seem to be ignoring is that none of those options scale nearly well enough to solve the problem.

      Let's assume you don't know what you're talking about.

      Solving it will require a massive shift towards nuclear power.

      Let's assume Wall street thinks that nuclear power is a bad investment. Let's al

      --
      My ism, it's full of beliefs.
    57. Re:Regarding cooling, coal more energy dense by MrKaos · · Score: 1

      Of course cooling is critical. It does not address my criticism.

      Using nuclear power reduces global warming, avoiding this scenario of unavailable cooling.

      The quote also has nothing to do with the issue at hand, it's just an incident caused by hardware failure. There's nothing spectacular about it, nor does it relate to unavailable external cooling.

      It is *the* issue at hand. Global warming is causing drought in some places. Nuclear reactors weren't designed in a way where you can consume *all* of the primary coolant, in this case river water. If you do, you expose new basis design issues and untested failure modes in the reactor because this type of event (called a Loss Of Cooling Accident) is rare.

      That *is* the issue at hand. That is what is meant by "cooling resources" , in this case river water.

      What the NRC regulations are telling us is that some things that the operators hadn't seen fail before, failed. It also tells us how well certain parts worked and that's important because when something fails in a nuclear reactor it happens in a sequence.

      --
      My ism, it's full of beliefs.
    58. Re:Regarding cooling, coal more energy dense by MrKaos · · Score: 1

      I do not think this study does what you want it to.

      I'm not sure what you mean? The point is not that you can increase the plant efficiency, it is that you expose new basis design issues and untested failure modes in the reactor because this type of event is rare. I explained it elsewhere, the plants weren't designed in a way where you can consume *all* of the primary coolant, in this case river water.

      You may not have been aware that we were also discussing this in another thread.

      --
      My ism, it's full of beliefs.
    59. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 1

      Common knowledge. Google is your friend. As a test, see if you can find 31% for CANDU reactors.

    60. Re:Regarding cooling, coal more energy dense by Anonymous Coward · · Score: 0

      All of them could be, but it would cost more. Since nuclear is already expensive and since it would be private industry, the costs would not be taken on by them, but demanded from government and the tax payer.

    61. Re:Regarding cooling, coal more energy dense by ericloewe · · Score: 1

      Wind replacing anything on a large enough scale is a green fantasy.

    62. Re:Regarding cooling, coal more energy dense by ericloewe · · Score: 1

      So if there isn't enough water shut the thing down preemptively. It's a pain, but that's what you get for stalling and not cutting greenhouse gas emissions.
      In the interim, if you really must, just have additional combined-cycle (you might not be able to sustain the combined cycle due to the lack of water, but it'll be usable after nuclear shuts down, for a while longer) natural gas generation on standby. It ramps up quickly and is leaps and bounds better than coal.

      Or, you know, don't build nuclear plants in places likely to experience severe drought.

      Just because there are problems with it, doesn't mean it's not the right solution. Nothing is perfect, I'm afraid.

    63. Re:Regarding cooling, coal more energy dense by doom · · Score: 1

      Common knowledge.

      In other words, you can't remember where you got it and are trying to run a bluff.

      This is actually a really serious business at hand-- fate of the planet and all that, you know? There is a lot more at stake than you saving face with this nonsense.

    64. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 0

      No, it is just that people interested in this topic know this stuff. Check out combined cycle gas plants. Quite impressive. Nukes are not impressive. They can't be.

    65. Re:Regarding cooling, coal more energy dense by MrKaos · · Score: 1

      So if there isn't enough water shut the thing down preemptively. It's a pain, but that's what you get for stalling and not cutting greenhouse gas emissions.

      Making Nuclear are unreliable as you say wind is. Less frequently than wind however with increased duration.

      In the interim, if you really must, just have additional combined-cycle (you might not be able to sustain the combined cycle due to the lack of water, but it'll be usable after nuclear shuts down, for a while longer) natural gas generation on standby. It ramps up quickly and is leaps and bounds better than coal.

      So your saying that Nuclear will have to rely on a greenhouse emitter because the plant isn't available. How will you cool the gas generator?

      Or, you know, don't build nuclear plants in places likely to experience severe drought.

      That isn't an answer, it's an excuse

      Just because there are problems with it, doesn't mean it's not the right solution.

      Like the scaling problem you erroneously claim with solar and wind.

      Nuclear power is deeply flawed, I'm afraid.

      FTFY

      --
      My ism, it's full of beliefs.
    66. Re:Regarding cooling, coal more energy dense by doom · · Score: 1

      No: what's not impressive is you. The trouble is you guys talk a good enough line to impress the ignorant, and this time you may get the planet fried. Have a nice life.

    67. Re:Regarding cooling, coal more energy dense by angel'o'sphere · · Score: 1

      Strangely enough, thermodynamics applies to all power sources
      Strangely enough: it does not. Perhaps you should read up at wikipedia what "thermodynamics" is about.

      the efficiency of solar power panels decline at higher temperatures. Which is not an effect caused by thermodynamics ... and does not change the fact that France had to power down its nuclear plants the previous 5 summers significantly.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    68. Re:Regarding cooling, coal more energy dense by mdsolar · · Score: 1

      Maybe Google is not your friend.

  13. Nope, James Hansen has at least this right by Anonymous Coward · · Score: 4, Informative

    James Hansen is right about this. Nuclear reactor technology has advanced to the point that safe-by-design reactors can be built, with technology that prevents meltdown in the event of total power and coolant failure. No other technology offers the energy density necessary to replace fossil fuel power plants.

  14. Excluded Middle and Strawman by Crashmarik · · Score: 1, Insightful

    The one quantitative "illustrative scenario" they propose — "a total requirement of 115 reactors per year to 2050 to entirely decarbonise the global electricity system"

    Who can write this with a straight face ? The premise that humankind should emit no carbon is ridiculous, even if you subscribe to the global doom claims. Even if you do feel that your net carbon emission should be zero (be sure not to get cremated) since when is Atomic Power the only non carbon emitting source of energy ?

    1. Re:Excluded Middle and Strawman by Anonymous Coward · · Score: 0

      Emit no carbon?

      What do you have against the trees?!?!?

    2. Re:Excluded Middle and Strawman by Anonymous Coward · · Score: 0

      Even if you do feel that your net carbon emission should be zero (be sure not to exhale)

      There, FTFY.

    3. Re: Excluded Middle and Strawman by Anonymous Coward · · Score: 0

      Humans come from photosynthetic carbon so creating simply ends the cycle. Stored carbon in fossil fuels are the issue not breathing or cremation. If you can't get basics like that right then it's not likely you're worth listening to.

  15. Not Ready For Prime Time by mdsolar · · Score: 1, Insightful

    The Proposal is for currently available reactor designs.

    1. Re:Not Ready For Prime Time by fahrbot-bot · · Score: 1

      The Proposal is for currently available reactor designs.

      I've watched that movie a few times and still fail to see the connection.

      --
      It must have been something you assimilated. . . .
    2. Re:Not Ready For Prime Time by kheldan · · Score: 0, Offtopic

      Friend, with respect: Please take off the blinders, OK? One of my personal philosophies is 'If what you're doing isn't working, then try something else, repeat the process until success', and it's worked pretty darned good for me so far; I see no reason why this philosophy can't be applied to everything else, but people need to open their minds to it. I'm not concerned with any current proposals, I'm concerned with the bigger, long-term picture, and I see nuclear power in the form of thorium-based reactors in that picture. If nothing else it'll give Humanity some much-needed breathing room while physicists and engineers work on creating even better solutions to the world's energy problems.

      --
      Are YOU using the TOOL, or is the TOOL using YOU? Think about it!
    3. Re:Not Ready For Prime Time by mdsolar · · Score: 3, Insightful

      If you are concerned with some far future scenario, then you misunderstand the proposal.

    4. Re:Not Ready For Prime Time by kheldan · · Score: 0

      No, I don't care about any 'proposal' you're referring to. People don't think far enough ahead, and that's why we as a race end up running into so many problems: putting a band-aid on things instead of fixing the real problem.

      --
      Are YOU using the TOOL, or is the TOOL using YOU? Think about it!
  16. MDSolar!? by Anonymous Coward · · Score: 0

    Now why would I possibly think this idiot has a horrible bias?

    1. Re:MDSolar!? by Anonymous Coward · · Score: 1

      Why would I think you calling someone an "idiot" shows your horrible bias?

  17. It's the least worst option by niks42 · · Score: 1

    Thorium reactors.

    1. Re:It's the least worst option by kheldan · · Score: 4, Informative

      It's not the 'least worst option', it's the best option. Thorium is plentiful compared to uranium, and more to the point it's plentiful here in North America (no need to buy it from someone else), thorium reactors don't need the complicated high-pressure reactors that uranium-fueled reactors need, thus lower construction costs, easier and cheaper management, they can't 'melt down', and the list of problems solved goes on and on. People need to get over their paranoia about anything with the word 'nuclear' in it and allow themselves to be saved by LFT reactor technology.

      --
      Are YOU using the TOOL, or is the TOOL using YOU? Think about it!
    2. Re:It's the least worst option by Anonymous Coward · · Score: 0

      Thank You, SANITY.... Nuclear is already safer than anything else you can compare it to energy wise, the problems of storage become assets with Thorium based LFTR systems. If only to reprocess or reduce waste products from past systems we should have large scale LFTR sytems in place now to reduce our wastes.

  18. Real solutions aren't technological by Anonymous Coward · · Score: 0

    This is climatologists thinking someone else's technology will solve their problem. And it is a dangerous argument since it is both unrealistic and will sideline any real solutions. There are many ways to reduce carbon emissions. The problem is not that they are intellectual puzzle as is the case with nuclear power, but they have powerful opposing political and economic interests. The technological problem with nuclear power is that no one has come up with a passively safe design. Safety systems that depend on human intervention have been shown to be impossible to implement and maintain consistently, at least in a commercial environment. We can't even maintain safety and quality control standards during the construction phase. We repeatedly have had nuclear plants fail at least in part because they weren't constructed to spec.

    1. Re:Real solutions aren't technological by khallow · · Score: 2

      The technological problem with nuclear power is that no one has come up with a passively safe design.

      Actually, recent generations are passively safe.

      Safety systems that depend on human intervention have been shown to be impossible to implement and maintain consistently, at least in a commercial environment.

      Code for "profit is evil!" There are 440 commercially operated nuclear plants in the world (as of January 2016) with a safety record spanning about 50 years indicating that they do a pretty good job compared to alternate power sources like hydro, coal, wind, or solar.

      We can't even maintain safety and quality control standards during the construction phase. We repeatedly have had nuclear plants fail at least in part because they weren't constructed to spec.

      You have yet to demonstrate that the "specs" actually help make nuclear power safer, let us note. A lot of relatively poor choices, extending the lives of old nuclear plants, happens because no one is making enough new plants to specs that the old plants could never achieve.

    2. Re:Real solutions aren't technological by blindseer · · Score: 2

      This deserves repeating:

      because no one is making enough new plants to specs that the old plants could never achieve.

      The reason we had disasters like Fukushima and Chernobyl is because we stopped building new reactors at the rate we were before. If we kept building reactors at the same rate then we'd have seen new reactors replace the old. Instead we now run the reactors until they fail. Considering how these old reactors were built they tend to fail spectacularly.

      Water cooled reactors with solid fuel separate the hot fuel from the water with zirconium metal. If the zirconium gets too hot it will burn, using the water as an oxygen source. This releases hydrogen gas into the reactor vessel, building pressure. If the gas is not released in a manner to prevent ignition then you have the makings of a large fuel-air bomb, sitting right on top of some very hot (and now likely molten) radioactive sludge. BOOM! Then radioactive debris, still molten and/or burning, now rains down over the reactor site. Good job guys, let's keep these things running for the next fifty years, because God knows we can't build them better than this.

      Oh, but we can build them better. We can build air cooled reactors. No water needed. Not only do we do away with an oxygen rich coolant (and don't fool yourself, water is largely made of oxygen, air not so much) that is corrosive, but we do away with the zirconium cladding too. Other benefits to air cooling is that the reactor does not need to be near water, and the water nearby is not super heated by the reactor, the fishes would be pleased.

      We can use liquid fuel, fuel that is already molten so it cannot "melt down" like a solid fuel reactor. A solid fuel reactor that turns itself, through meltdown, into a liquid fuel reactor will burn itself a new reactor vessel into the floor of the previous vessel. It will burn itself into a nice spherical shape to assure a good neutron economy making sure it gets nice and hot. A liquid fuel reactor cannot do this because the floor of the reactor would be built in a way that, in the unlikely event it happens, if containment it lost the fuel will spread out. Without concentrating the fuel the fission chain is broken, and cannot restart.

      The arguments against nuclear power are based on building new reactors with the same flaws that existing reactors have. We can build new ones without those flaws. That's not saying these new designs will be flawless, but at least the new flaws will not result in the reactor undergoing rapid self disassembly on worldwide television. These molten fuel reactors could fail but at least they won't spread burning radioactive pieces all over the place.

      --
      I am armed because I am free. I am free because I am armed.
  19. North Korea by mdsolar · · Score: 2

    Has a breeder program. Sounds like a great plan.

    1. Re:North Korea by rubycodez · · Score: 0

      Also South Korea, Russia, China and India have breeder programs. Do you have a point?

    2. Re:North Korea by Creepy · · Score: 1

      A breeder reactor isn't necessarily a bad thing. North Korea uses theirs to create plutonium for bomb-making, bred from fissile uranium, so sure that's bad. They could also siphon off protactinium to get fissile uranium. That said, Russia's BN-800 fast breeder reactor (same design as China) uses a once-through fuel cycle, making it useless for a nuclear or even dirty bomb until some of the stronger decaying particles are gone. The reactor is about 70% fuel efficient vs 99.5%. The downside is it is very expensive to build and the waste highly radioactive (without reprocessing), but for a much shorter time than conventional reactors.

      If you just decide your facility is secure enough for reprocessing, the fuel cycle is 99.5% efficient and the waste is less radioactive than background radiation in 300 years.

    3. Re:North Korea by Creepy · · Score: 1

      He assumes breeder reactors are only used to make nuclear bombs and ignores the fact that once through fuel cycles could avoid that. Also reprocessing can pull out isotopes needed by medical machines like MRIs. You could also do a once through, and then recycle fuel and do all reprocessing at an extremely secure single site. In fact, that is exactly what the US did at one time.

    4. Re:North Korea by Anonymous Coward · · Score: 0

      So do China and India and they are both pushing hard. China is investing heavily and has ambitiously planned to have a full sized thorium reactor in place in 10 years.

      http://blogs.telegraph.co.uk/finance/ambroseevans-pritchard/100026863/china-going-for-broke-on-thorium-nuclear-power-and-good-luck-to-them/

      Google "china thorium reactor progress" and see for yourself. Then weep for the lost opportunities in advanced power production being squandered by the US in particular and "the West" in general. The best hope for ubiquitous safe carbon neutral power and we aren't even interested on the national level.

      I'll just leave this partial point right here: https://xkcd.com/1162/

    5. Re:North Korea by mdsolar · · Score: 1

      You do understand that breeders breed nuclear weapons proliferation. That is what North Korea is up to.

    6. Re:North Korea by Anonymous Coward · · Score: 0

      Interesting but what does that have to do with how we produce power? Thorium breeders are a brilliant way to use a fuel for which we have thousands of years of all over the earth and produce fissile waste that is several orders of magnitude lower than existing Uranium reactors. The best part is that after an initial fuel cycle they could run almost exclusively off of the existing waste fuel. Think on that for a second...they are so much better at consuming fuel that it can run on what we toss in a heavily shielded hole now.

      I believe that 4th gen reactors are our best hope to significantly reduce carbon emissions while not wrecking the global economy in the medium term. China desperately needs power while they also desperately need to reduce the pollution they are pouring over their country. They think that thorium breeders are at least one possible way forward and are putting their money where their mouth is.

    7. Re:North Korea by MachineShedFred · · Score: 2

      You already know this, but you're too busy trolling to be accurate: all isotopes of Plutonium are not equal. Yes, you create Pu-239 in a breeder reactor. And if you aren't looking to create weapons, you leave the thing turned on for an economical amount of time instead of the incredibly short time required for making weapons, and you also get Pu-240 and Pu-241 in ever-increasing concentrations... which makes the material unsuitable for weapons.

      But I guess sharing the true nature of what's going on doesn't fit with the narrative of FUD, so continue on.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    8. Re:North Korea by mdsolar · · Score: 1

      Which is exactly what makes breeders unsuitable for civilian power production. That first step is a doosy.

    9. Re:North Korea by MachineShedFred · · Score: 1

      The first step... meaning not turning it off after 3 to 6 months and getting far better output for the resources spent? Yeah, that's a hard one. Letting something run longer when that's exactly what it wants to do anyway.

      Let's be clear: In order to make weapons grade material, you have to do it very purposefully, and in a process that defeats the purpose if you built the reactor to create reactor fuel. It's incredibly obvious to anyone paying attention, and one would think that such an installation would have some appropriate oversight to make sure.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    10. Re:North Korea by Anonymous Coward · · Score: 0

      Like South Africa?

    11. Re:North Korea by mdsolar · · Score: 1

      So, basically you are asking for a new world order. Do you think North Korea should be in charge of it, or should it be controlled by it?

    12. Re:North Korea by MachineShedFred · · Score: 1

      What the hell are you even talking about?

      North Korea will do what North Korea wants to do, and there's nothing you or I can say or do to stop that, and I don't even know where that enters into this conversation.

      I'm talking about what happens in the part of the world where the vast majority of energy is produced and used, not some dark corner rogue nation ruled by some tyrant who just wants attention. How about we fix the big problems first (carbon output of North America, Europe, China, Russia - you know, where most of the carbon output comes from) and worry about corner cases later?

      You know that this is a huge trolling non-sequitur, yet you keep on with it. North Korea isn't even close to being central to this problem, and you know it.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    13. Re:North Korea by mdsolar · · Score: 1

      Look at your topic heading. North Korea and nuclear weapons proliferation is the topic. You claim it can be controlled. Experience says otherwise. Best to avoid breeders.

    14. Re:North Korea by MachineShedFred · · Score: 1

      The phrase "throwing out the baby with the bath water" comes to mind here. Clearly this technology can't ever be used for non-weapon benefits because one tiny rogue nation went rogue.

      That's the kind of mentality that results in permanent technological stagnation. We'd better just stop using electricity of any kind, because someone could get electrocuted, according to your logic. Better establish an outright ban on cars, because someone could have a crash and die - clearly the technology can be used for bad, and should be completely outlawed worldwide.

      Look, I can make nonsense completely overblown fearmongering arguments too!

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    15. Re:North Korea by mdsolar · · Score: 1

      Happens to be US policy.

  20. That's exactly right by stomv · · Score: 5, Insightful

    mdsolar's point isn't that we should build no new nuclear, at least not in this thread. His point is that nuclear can't, in and of itself, decarbonize the electric sector. We simply don't have the capacity to build that many nuclear power plants simultaneously, nor do we have the fuel, nor do we have the money.

    The first one might be overcome. After all, if world leaders were able to simultaneously lay out this plan and get political support for it, part of the plan would include training more engineers, trades, and other jobs necessary. We might not be able to build 100 per year in 2016 (or even 2020), but we could ramp up.

    The second one might be overcome. After all, with pressure for more fuel, we might go out and find more fuel, develop new techniques to find, recover, and process more fuel, etc. I doubt we could overcome it, but generally speaking if we went "long" on nuclear, at least some more fuel would turn up.

    The third one is the toughest. Nuclear power, today, is more expensive than wind and in some places, more expensive than solar. Given that wind and solar don't have the political opposition, don't have 10-15 year lags from "let's build it" to "let's turn it on", and can be built in more places at far smaller increments, it's really tough to argue that we should spend the money on nuclear when there are cheaper options. But -- that could change. Improving the regulatory climate could help lower construction costs, as could improvements in design. Wind and solar $/kW will continue to fall for a while, but perhaps their supply inputs will become scarce and, at least for wind, the locations for the best wind become scarce. At some point in the future it's possible that the $/kWh for nuclear will become cheap enough, but it's not there now.

    My view: don't put any option off the table, but let's spend our money to get the most decarbonization per buck. Right now, that means going long on energy efficiency, retiring the old coal units, building wind and solar where we can, and keeping (most) nuclear units already built up and running, so long as their safety is secure. Simultaneously, we should price carbon appropriately, eliminate subsidies on oil, coal, and gas, and be working to lower the cost of all no-carbon generating options using both technology and regulatory approaches. All of those things, together, will result in a steady least cost decarbonization of our electric sector, and if/when/where nuclear can beat out wind and solar, so be it.

    1. Re:That's exactly right by ClickOnThis · · Score: 0

      Great post. Moderators, please take note.

      --
      If it weren't for deadlines, nothing would be late.
    2. Re:That's exactly right by Rei · · Score: 5, Insightful

      These "X can't solve our energy" problems debates all generally come back to the concept of, "I personally can't imagine it". They see what vast scale of effort/material/etc it takes to build something, declare it impossible, and then declare something that they don't know as much about and haven't yet been overwhelmed by to be the solution.

      Let's make it simple. If you're making hundreds of megawatts from something (let alone gigawatts), it's going to be mind-bogglingly huge and expensive, period. Doesn't matter whether you're talking about wind, water, solar, geothermal, nuclear, or whatnot - anything that can make and harness that much power is huge.

      Since this is about nuclear: here's a cutaway of a "small" (180MW) reactor. This is just the reactor building, not all of the associated buildings, such as the (very large) turbine house, primary and backup support systems, power distribution infrastructure, and on and on. Again, that's a small reactor. And not only does all of that have to be built, but engineered to great precision, for the obvious reasons of the toxicity of what it's containing and the highly corrosive environment that it creates. Now think of how much you'd have to build to add new/replacement 3-4 terawatts. It's mind bogglingly vast.

      But you know what, it's all mind bogglingly vast. 3-4 terawatts of dams is mind-bogglingly vast. 3-4 terawatts of wind turbines is mind-bogglingly vast. 3-4 terawatts of solar panels and the factories to churn them out is mind-bogglingly vast. And on and on and on. There's a reason why electricity production eats up such a large chunk of the planet's GDP - it deals in mind-bogglingly vast things. Some things take less material and more manpower, while others take more manpower and less material... and ultimately material itself equates to manpower. All of these things are captured in the construction cost figure, which amortized plus maintenance and operations costs yields the cost of the electricity. So one doesn't have to trust some sort of "I can't conceive of that, it's too big!" sense - they just need to look at what the power costs (undistorted by external factors). The market will pay for whatever is cheapest, and will build whatever factories or mines or whatnot that it needs to in order to make it happen.

      Turnaround times are an issue, but they're not be-all end-all. Because even the longest turnaround times on projects are generally no more than a decade to a decade and a half. Climate change is an issue that needs to be approached over the course of decades. So even if the need to ramp up production of the projects' "dependencies" before the projects themself can commence, there's still plenty of time. IF there was confidence that that it's the best option.

      Ultimately, however, since people can't see the future, nobody knows what's going to be cheapest. Different people have different views. Different countries offer differing market conditions and resources. So ultimately, no one solution is going to be taken up as the "be-all, end-all". Many routes will engage in parallel, and with each iteration, the data gleaned from earlier attempts will influence decisions as to what to make next.

      But one thing is for sure: what ever is built, it's going to be mind-bogglingly vast. That's what we 7,4 billion humans do.

      --
      He's the sort of person who would sell the Red Cross to Dracula.
    3. Re:That's exactly right by Applehu+Akbar · · Score: 1, Insightful

      The Greens are aware that their own climate hysteria has had the unintended side effect of increased interest in building more nuclear as a way of avoiding carbon. Once they kill off nuclear construction in countries where they can influence policy, they will - and already are - cranking up opposition to what they call "industrial wind" and "big solar" [http://www.aweo.org] and [http://vtdigger.org/2015/11/11/rays-of-opposition-to-burlington-solar-project/]. Their real agenda: deindustrialization and civilizational collapse.

    4. Re:That's exactly right by vtcodger · · Score: 2, Insightful

      "The third one is the toughest. Nuclear power, today, is more expensive than wind and in some places, more expensive than solar."

      Not if you can handle fourth grade arithmetic. If wind and solar are so cheap, why do you have to bribe people to build them?

      The answer is that wind and solar are intermittent power sources and unless you can match them to a load (e.g. solar and air conditioning) you need to include the costs of storage and or (much of the cost of) backup generation. When you compute the actual costs of wind and solar as opposed to unrealistic sticker prices used by "green" advocates, they are not cheap at all for most applications. Nor are they likely to be cheap any time soon.

      Note that the world leaders in green power -- Denmark and Germany have retail customer electricity prices approaching 40 cents a kw/hr. And German carbon emissions have actually been increasing despite their massive wind and solar buildout.

      A final thought. India (6 reactors under construction) and China (21 plants under construction) are planning to build a lot of nuclear plants in the near future. Do you think Joe Romm's cost figures reflect the costs of an Asian built reactor?

      --
      You can't see ANYTHING from a car, You've got to get out of the goddamned contraption and walk...Edward Abbey
    5. Re:That's exactly right by kenwd0elq · · Score: 2, Informative

      The biggest cost factor for nuclear power _IS_ the level of irrational political opposition. When you have to litigate and re-litigate and re-RE-litigate every application and every engineering change a dozen times over, it becomes nearly impossible to do anything.

    6. Re:That's exactly right by Anonymous Coward · · Score: 1, Funny

      ok. i'll bite. i can understand labelling the environmentalists and naive and misguided. after all
      these are complicated tradeoffs, for which our default optimization mechanism (capitalism)
      is poorly equipped to handle.

      but this, do you seriously believe that there can be only one explanation for wanting to mitigate
      environmental change? that some idiots just wanna live in caves? worse, they want everyone
      else to live in caves.

      this is basically as weak as 'they attack us because they hate our freedoms'

      maybe you can try a little harder next time

    7. Re:That's exactly right by jklovanc · · Score: 2

      Nuclear power, today, is more expensive than wind and in some places, more expensive than solar.

      While this is true for the actual generation of the power it does not take into account the additional costs connected with these technologies.
      Storage; These technologies are not dispatchable. One can not turn up the wind or sun when needed. They are also variable. Wind speeds can change minute to minute and storms can vary solar output hour by hour. To overcome this storage is needed to level out the flow.
      Transmission; These technologies are only viable in certain area. For example, solar in Michigan would be pretty much useless in winter. This requires long transmission line to get power from where it is produced to where it is needed.
      One can build a nuclear power plant pretty much anywhere and be close to where it is used. It's output can be dialed up or down as required.
      Take a look at this graph. Nuclear is less expensive that you seem to think.

    8. Re:That's exactly right by Anonymous Coward · · Score: 0, Informative

      You don't. "If wind and solar are so cheap, why do you have to bribe people to build them?". Applies LESS to renewables than it does to oil, gas, coal and especially nuclear. And those don't have any startup costs to go to get market penetration: they all managed their penetration 100 years ago.

      Wind and solar ARE cheap. That's why they're bing built so many places.

    9. Re:That's exactly right by w3woody · · Score: 2

      But we have the capacity to entirely replace our electric grid with solar and wind?

    10. Re:That's exactly right by angel'o'sphere · · Score: 3, Informative

      Note that the world leaders in green power -- Denmark and Germany have retail customer electricity prices approaching 40 cents a kw/hr. And German carbon emissions have actually been increasing despite their massive wind and solar buildout.
      Wrong on all accounts.
      Neither is CO2 emission increasing nor do we have so high prices. The typical price mentioned in the internet is something like 28cents. And that is only so high for two reasons: we don't use much power, so we have a relatively high "base cost" and we have taxes, note able CO2 taxes on power.
      It would make more sense to compare a 900 sqare feet flat total energy costs in your country with mine ... I have something like 3500kWH per year, for the flat, two persons. So mine is something like 1750kWh. As my combined gas and electricity bill is more 720EUR per year, 2/3 of it for gas. This is roughly 235EUR for electricity, which turns to 13cents ... see: the "average of 28 cent" is already wrong for my personal electricity bill. But perhaps I have it wrong in my mind and electricity versus gas is 1/1 and I pay 360EUR per year for electricity, that would be: 20cent. Oh, I forgot, I got a refund of 500EUR this year, so last year I only payed 1000EUR (720*2-500), so the prices above are much lower even.

      In Denmark electricity prices are high because of the even higher taxes.

      Comparing Apples with horse shit makes no real sense. You want to argue that going for wind and solar would make electricity expensive in your country, but it would not. Both are meanwhile cheaper than coal and nuclear, so regardless of the tax scheme or what ever reason keeps your electricity prices low, it wont change just because you switch to green energy.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    11. Re:That's exactly right by Xyrus · · Score: 4, Insightful

      mdsolar's point isn't that we should build no new nuclear, at least not in this thread. His point is that nuclear can't, in and of itself, decarbonize the electric sector.

      Yes, it can. Nuclear power has a ridiculous energy density.

      We simply don't have the capacity to build that many nuclear power plants simultaneously,

      We most certainly could. The biggest hurdle is policy, which adds enormous cost and time to nuclear power projects and makes it so that only handful of companies even want to try.

      nor do we have the fuel,

      Again, this is not really issue. Compared to the massive increase in mining that would be required for, say, building billions of solar panels the increase needed to support increased nuclear is a mere pittance.

      nor do we have the money.

      Yes we do, if we had any sort of a sane process. Most of the cost of a solar plant is spent just dealing with that. The actual cost of the plant is just little more than an equivalent coal plant, and takes about a year or two longer to build.

      I'm all for renewables, but the ramp up and resulting ecological disaster zones that would be created by creating massive pit mines to get all the materials for building out on the scale necessary to "decarbonize" never seems to be discussed. We would have to increase production by orders of magnitude, and we simply cannot do that in any reasonable time frame. We can't even do that with all nuclear.

      In the meantime, a mixture of both will get us towards that goal but we need to set aside for "adaptation" strategies.

      The real problem, of course, is this should have been started several decades ago.

      --
      ~X~
    12. Re:That's exactly right by Anonymous Coward · · Score: 0

      So... fairly big then?

    13. Re:That's exactly right by Anne+Thwacks · · Score: 1
      Comparing Apples with horse shit makes no real sense

      Unless you are selling horse shit.

      --
      Sent from my ASR33 using ASCII
    14. Re:That's exactly right by Anonymous Coward · · Score: 0

      It's called Liquid Fluoride Thorium Reactors. Solves every single problem, and will spread mankind throughout the solar system. So safe it was examined for use in aircraft, FFS.

    15. Re:That's exactly right by Antique+Geekmeister · · Score: 1, Troll

      > . 3-4 terawatts of wind turbines is mind-bogglingly vast. 3-4 terawatts of solar panels and the factories to churn them out is mind-bogglingly vast.

      It's vast, but not too bad if you use solar sail based power collection. They can keep station in non-geosynchronous orbital positions by using solar wind and light pressure to manipulate their orbits and maintain geo-synchronicity artificially. A single solar sail of one kilometer solar collects about 20 Gigawatts. It will irritate astronomers to block the sky at all, but the power can be sent down to Earth based microwave antenna arrays at a low enough power density to reduce its use as a weapon by simply not providing a good focusing mechanism.

    16. Re:That's exactly right by angel'o'sphere · · Score: 1

      You are mixing several things up.
      A solar sail is litterally in the sense of the word a sail. It does not create electric energy. Nothing to beam down.
      If you want to have a one square kilometer photovoltaic 'thing'(which would not work as a sail) you have to shoot that up into orbit first ... good luck with that.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    17. Re:That's exactly right by Anonymous Coward · · Score: 0

      "nor do we have the fuel, nor do we have the money."

      We do have the fuel - possibly not uranium.

      And we always have the money. Because money is just a way of getting a bunch of people to work on one project rather than another.

      If you have the people in your state capable of doing a job, then the money is just there as a natural consequence of the state having monopoly over a particular currency.

      The restrictions are always real on a state, never financial - whatever your religious textbooks tell you.

    18. Re:That's exactly right by angel'o'sphere · · Score: 0

      Not if you can handle fourth grade arithmetic. If wind and solar are so cheap, why do you have to bribe people to build them? No idea, did not know that people get bribed to build solar plants? How does that work? Where can I queue up to get my bribe?

      However I wonder who is bribing you to write monsense like this in an internet forum?

      The answer is that wind and solar are intermittent power sources and unless you can match them to a load (e.g. solar and air conditioning) you need to include the costs of storage and or (much of the cost of) backup generation.
      No, you have not. The cost is the price you pay at the spot market where you buy that power. Why do you care how the producer comes to that cost?

      When you compute the actual costs of wind and solar as opposed to unrealistic sticker prices used by "green" advocates, they are not cheap at all for most applications. Nor are they likely to be cheap any time soon.
      Again, no one is using 'green advocate sticker prices'. We use the actual prices at the market.

      Note that the world leaders in green power -- Denmark and Germany have retail customer electricity prices approaching 40 cents a kw/hr. And German carbon emissions have actually been increasing despite their massive wind and solar buildout.
      To that I already answered in another post, it is just plain wrong.

      A final thought. India (6 reactors under construction) and China (21 plants under construction) are planning to build a lot of nuclear plants in the near future. Do you think Joe Romm's cost figures reflect the costs of an Asian built reactor?
      And finally: how much GW of especially solar are under planning or already under construction in both India and China? The nuclear power build up right now is not even in the percentage range of the renewables build up. Get a damn clue.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    19. Re:That's exactly right by angel'o'sphere · · Score: 0

      Yes, it can. Nuclear power has a ridiculous energy density.
      (*facepalm*) The energy density is completel irrelevant.

      And the mining nonsense you write later on belongs to the biggest nonsense on /.

      No one is mining resources for solar panels, get a god damn clue. They are made from: sand!!! (Yeah, for the nipickers: I know there are severl other technologies, but the poster here knows NOTHING and dares to make big mouthed opinions ... WTF, how I hate the internet meanwhile)

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    20. Re:That's exactly right by thinkwaitfast · · Score: 1

      We simply don't have the capacity

      We would if we really wanted to. Look at what the US did in WWII...

    21. Re:That's exactly right by vtcodger · · Score: 1, Insightful

      "Wind and solar ARE cheap. That's why they're bing built so many places".

      I think you've been misinformed my friend. Let me help you out with a quote.

      Let me quote Warren Buffet. :Â"I will do anything that is basically covered by the law to reduce Berkshire's tax rate," Buffet told an audience in Omaha, Nebraska recently. "For example, on wind energy, we get a tax credit if we build a lot of wind farms. That's the only reason to build them. They don't make sense without the tax credit."

      Might want to do a little research and move out beyond the inaccurate sources you probably have been reading.

      --
      You can't see ANYTHING from a car, You've got to get out of the goddamned contraption and walk...Edward Abbey
    22. Re:That's exactly right by thegarbz · · Score: 5, Informative

      Yes imagination can get you when you don't see how simple the construction itself is. That building, it's simple. Yes it requires the use of special materials but the structure itself is far simpler than any skyscraper would ever be. Those reactors? Simple by any standard used in the process industry. Which only leaves the question of scale.

      I was right there with you in my thoughts. I thought scale was an incredible problem right up until I visited the largest oil refinery in Europe after visiting a tiny one in Australia. Everything was the same, the equipment was the same, the way they worked was the same, the effort put into maintaining it was the same. Things were only slightly larger though. A refinery that had 6 times the throughput had far less than double the foot print and the reactor vessels etc were less than double the size. Likewise on the co-generation facilities. Turbines with 10 times the power generation capacity were also less than double the size.

      I also had the opportunity to visit a large industry motor / generator repair house to go check on the progress on one of our 2.5MW motors while they were overhauling a 300MW generator for the local power station. The diameter of the rotor was maybe 5 times the size of our little baby but the duty was over 100 times the power. My mind was absolutely blown. Powerlevels and throughput of industrial machinery scale what seems like exponentially with the size of equipment.

    23. Re:That's exactly right by Anonymous Coward · · Score: 0

      Big is not one size. Compare the cost of the smallest commercial nuclear reactors to the largest hydroelectric dams... both are big numbers, certainly. But nuclear always costs more, eventually, because the costs effectively never end. Nuclear has always been the most expensive way to produce electricity. A nuclear power plant pumps out a lot of power in its short life span, but we are paying a premium for that power. Nuclear has a place, but it would be foolish for all or most of our economic eggs to be in that basket. We require diverse sources of energy production.

    24. Re:That's exactly right by FlyHelicopters · · Score: 0

      Wind and solar ARE cheap. That's why they're bing built so many places.

      No, they aren't...

      They "appear cheap" because of government tax subsidies, but otherwise they make no financial sense whatsoever.

    25. Re:That's exactly right by Sibko · · Score: 1

      mdsolar is nothing but a troll

      I almost can't believe this submission was accepted, but I guess clickbait sells.

    26. Re:That's exactly right by FlyHelicopters · · Score: 4, Informative

      https://www.ovoenergy.com/guid...

      That says German average price is 35 cents per kWh.

      Do you dispute that number being the average across Germany?

      The US number given is 12 cents, and that is accurate for the average, but I pay much less, just over 7 cents in Texas. That doesn't make the 12 cent number wrong, just that it isn't MY number.

      Maybe your number is lower, but I suspect that 35 cents is correct as a national average in Germany.

    27. Re:That's exactly right by FlyHelicopters · · Score: 1

      No, you have not. The cost is the price you pay at the spot market where you buy that power. Why do you care how the producer comes to that cost?

      Because much of wind and solar isn't a "free market". Texas for example, is the leading producer of Wind in the US. Why is that? It is because they are guaranteed a market, they get government dollars for selling their power at any price, which is why at night, they more or less give that power away. They are guaranteed first sale and are paid for being there.

      It is not a free and open market.

    28. Re:That's exactly right by Solandri · · Score: 4, Insightful

      But you know what, it's all mind bogglingly vast. 3-4 terawatts of dams is mind-bogglingly vast. 3-4 terawatts of wind turbines is mind-bogglingly vast. 3-4 terawatts of solar panels and the factories to churn them out is mind-bogglingly vast.

      This is what people don't seem to get. They compare Fukushima to a single wind turbine failure and proclaim wind is safer. Um no, Fukushima's generation capacity was equivalent to about 7,000-10,000 wind turbines. And on a global aggregate, the number of deaths caused by wind turbines per MWh of energy generated far exceeds the number of deaths caused by nuclear, Fukushima and Chernobyl included. Nuclear is safer, its deaths are just more exotic radiation deaths which, like an airliner crash, happen all at once and grab headlines, not mundane falls by maintenance workers which don't even make the local news.

      The global installed PV capacity is about 200 GW. But that's just peak generating capacity. Once you factor in night, weather, angle of the sun, maintenance, PV solar only has a capacity factor of about 0.125. So that 200 GW of capacity only generates 200*0.125 = 25 GW on average throughout the year. Fukushima Daiichi I had a capacity of 4.7 GW, and nuclear's capacity factor worldwide is about 0.9. So its average generation had it remained operational would've been 4.2 GW. In other words the combined power generation of every PV solar installation in the world is slightly less than just 6 Fukushima-sized power plants.

      That's the huge difference in scale we're talking about when comparing these technologies. How many people died installing and maintaining all those PV installations throughout the world? If it's more than 1/6th what Fukushima killed, then PV solar in regular operation kills more people than half-century-old nuclear technology on its worst day.

    29. Re:That's exactly right by Uecker · · Score: 1

      Whole-sale prices are lower in Germany than in California. Customer prices in Germany are twice as high. But is a myth that this is caused primarily by renewables. The feed-in tariff for renewables is only 20% of the cost and this would be lower if parts of the industry weren't exempt (and exempt industry pays much less than in California). For background information, see: https://law.stanford.edu/publi...

      That carbon emission weren't reduced much is mostly because gas has been reduced while coal is not. This has something to do with the relative cost of gas and coal (which is different in Europe than the US which has cheap gas). Also Germany produced 647,1 GWh last year while net-exporting 50,1 GWh (both records). So other countries reduced emissions by buying electricity from Germany.

    30. Re:That's exactly right by Anonymous Coward · · Score: 0

      Nuclear is less expensive that you seem to think.

      Yes, I can see that is true if you ignore the bulk of the cost of nuclear. But nuclear costs far more initially, and far more long after a nuclear plant stops producing energy --the costs continue for decades if not centuries. Make nuclear plants less expensive to start, and solve the existing waste problem, and the future waste problem, then we can begin to understand the real costs of nuclear.

      This is not an either/or situation. We can continue to use nuclear fission in the short term effectively. But we cannot ever even remotely declare nuclear as our savior. We need to look to alternative energy sources, spend some of our captial there, more than we spend on current nuclear solutions. Developing viable energy storage will not cost as much as continuing to use nuclear power indefinitely.

    31. Re:That's exactly right by steveha · · Score: 1

      I'm glad that you are so happy with the cost of electricity. However, I keep reading magazine articles about what a disaster the energy policy in Germany has been, and your one data point does not convince me.

      The Economist wrote:

      The simultaneous dash to renewables and new fossil-fuel power plants resulted in overcapacity and caused wholesale prices to tumble, which has battered the utilities' profits.

      At the same time, the prices paid by consumers have been rising. This is because of the above-market prices guaranteed for renewable energy.

      [...]

      This means that traditional utilities have turned instead to much more climate-damaging coal for generation. The result is that prices have gone up and the use of renewable sources has expanded, but Germans have ended up emitting more carbon dioxide as a result of the extra coal...

      But it gives me no happiness to think that the energy plan in Germany is failing. I hope that it will work out eventually.

      What Germany really needs, what everyone really needs, to make renewable energy work is storage. I am hoping for new storage technologies to make grid-level storage practical... the liquid metal batteries from Ambri, or pumped electrolyte batteries, or whatever. The only currently practical technology is pumped hydro, and the energy policy in Germany has led to pumped hydro facilities shutting down. If your energy policy leads to coal plants continuing to operate and pumped hydro shutting down, You're Doing It Wrong.

      On the other hand, I am also reading that that companies in Germany are planning to build more pumped storage within a decade despite the current economic disincentives, and coal use is going down. Perhaps it will work out in the future.

      --
      lf(1): it's like ls(1) but sorts filenames by extension, tersely
    32. Re:That's exactly right by JoeMerchant · · Score: 1

      simultaneously, nor do we have the fuel, nor do we have the money.

      But... if we had followed in the French's footsteps, starting in the 1980s, we'd have more than enough power and fuel to be 100% fission breeder fed by now. It's a political problem, not a technological or economic one.

      Even if we start today, all new power generation projects replaced with breeder reactors, followed up with a mandatory shutdown of the most carbon polluting 5% of existing generation capacity every year, we'd be able to do that easier and cheaper, worldwide, than Gulf War II.

      So, breeder reactors for Iran and North Korea in 2025, who's with me?

    33. Re:That's exactly right by Anonymous Coward · · Score: 0

      Yes they are.

      EVERY OTHER source gets massive tax subsidies. And that makes no financial sense whatsoever.

      Hell, insuring a nuke station IS IMPOSSIBLE. NOBODY will do it. So it has to be underwritten by the government. That you hate so much.

    34. Re: That's exactly right by pixelpusher220 · · Score: 1

      The intermittency of renewables is still its current Achilles heel. That's what nuclear has and it is needed now. Believe me, I hate nuclear, but for the next 50 years its the only viable base load alternative to fossil fuels. Grid scale energy storage isn't going to happen in the next 30 years.

      --
      People in cars cause accidents....accidents in cars cause people :-D
    35. Re:That's exactly right by vtcodger · · Score: 1

      > Wrong on all accounts.

      I don't think so. I've seen the 38 cent number in enough places that I'm fairly confident that it correct. e.g. "However, Germany is still paying nearly the highest electricity rates found in Europe at 38 cents per kilowatt-hour ($0.38/kWh). By comparison, Germanyâ(TM)s rates are 63% higher than the United Kingdom." http://www.globalenergymatters...

      My impression is that in Europe subsidies tor wind, solar, producers are paid from taxes on electricity users rather than from general revenue. That would certainly cause rates to be elevated compared to the US. Especially if, as seems to be the case with German solar subsidies , the subsidies are poorly structured resulting in sometimes paying for power that can't be resold because no one wants/needs it.. But I've never looked into the mechanics.

      As for German CO2 emissions: "Data from BPâ(TM)s Statistical Review of World Energy also make clear that German CO2 emissions have risen dramatically since the nuclear phase-out. Emissions have shot up from 802.3 million metric tons in 2011 to 842.8 million metric tons in 2013, a 5.1 percent increase.[16]." http://instituteforenergyresea... (Parenthetically, I don't see a 5.1% increase as being "dramatic". But it IS a step in the "wrong" direction)

      In fairness, that is probably largely due to the German decision to phase out nuclear power. While I have doubts that was a prudent decision, it's certainly not an irrational decision and the Germans have every right to decide that the risks of nuclear power outweigh the benefits

      --
      You can't see ANYTHING from a car, You've got to get out of the goddamned contraption and walk...Edward Abbey
    36. Re: That's exactly right by Entrope · · Score: 1

      Got a citation on effectively beaming the power down without focusing it? Besides the fact that you'd need 150 or 200 of the (challenglingly large) sails that you suggest to provide the 3-4 TW that the earlier post described, how do you focus the energy on a set of receiving stations without being able to focus it on a much smaller number of targets?

    37. Re:That's exactly right by Uecker · · Score: 3, Informative

      Don't worry. Germany is fine. You are reading the wrong magazines.

      Yes, it is a problem that pumped-storage is shutting down, but is shutting down because it is currently not needed. The are simulations by Fraunhofer that additional storage is needed in Germany only when going over 60% renewables. In other words: storage isn't really an issue at the point where we are.

      The customer prices in Germany are very high (30 cents / kWh) but only 6 cents are for the feed-in tariff for renewables. So this isn't the only one of many reasons for the high price (which is intentionally high). Also part of the industry is exempt and then pays much less than for example in California.

      Coal is indeed a problem. But you have to understand that coal is big in Germany for reasons entirely unrelated to the Energiewende. Coal is simply really cheap and locally mined (jobs!) - while gas is expensive in Europe.

    38. Re:That's exactly right by geoskd · · Score: 1

      His point is that nuclear can't, in and of itself, decarbonize the electric sector. We simply don't have the capacity to build that many nuclear power plants simultaneously, nor do we have the fuel, nor do we have the money.

      Like most kinds of systems, there are significant economies of scale to be had when building nuclear power facilities. The first one costs $10B+ to build. The second one only costs $8B because you can reuse much of the equipment and designs. If you are building 100 per year, the cost would probably drop to $5B each. This is easily within the budget of the US military alone, even if we assumed no private investment in nuclear power.

      What is missing is neither the capacity, the money, nor the knowledge. What is missing is the political will do actually do something about the problem and stop wasting money dropping $1M bombs on third world countries. Our politicians are guilty of criminal mismanagement of the resources of this planet, and the only excuse they offer is: "It's the will of the people"; which unfortunately it is.

      --
      I wish I had a good sig, but all the good ones are copyrighted
    39. Re:That's exactly right by Anonymous Coward · · Score: 0

      I think this argument doesn't emphasize the phrase "what appears to be cheapest" enough. Firstly you have the timeline - cheapest today, next year, 10 years from now, etc.. Secondly you may have enormous hidden costs - negative health effects on large numbers of people, damages to agriculture, etc. So the cost issue is complex and unfortunately the so-called free market is not particularly suited to electrical generation. Investors typically want short term results not applicable to power generation not to mention the natural monopoly of centralized power generation reduces competition.

    40. Re:That's exactly right by ooloorie · · Score: 4, Interesting

      The customer prices in Germany are very high (30 cents / kWh) but only 6 cents are for the feed-in tariff for renewables. So this isn't the only one of many reasons for the high price (which is intentionally high). Also part of the industry is exempt and then pays much less than for example in California.

      Yes, only 6 cents are for the feed in tariff for renewables. The rest of the difference is consumer prices being raised in order to give energy hungry industries low electricity prices. In different words, Germany has a hidden regressive tax on electricity customers in order to increase corporate profits of energy hungry industries. And I wouldn't be so sure that that is allowed to continue, given that it amounts to unfair competition and trade practices. Both the EU and the US may sooner or later decide to stomp down on these hidden subsidies.

    41. Re:That's exactly right by Uecker · · Score: 2

      Unsubsidized onshore wind is consistently estimated to be one of the cheapest energy sources. For example, see here
      https://www.lazard.com/media/2...

    42. Re:That's exactly right by Applehu+Akbar · · Score: 1

      "but this, do you seriously believe that there can be only one explanation for wanting to mitigate
      environmental change? that some idiots just wanna live in caves? worse, they want everyone
      else to live in caves."

      I've already linked this manifesto in a different thread (context obvious at link) but I'm assuming you didn't see it:
      http://dgrnewsservice.org/civi...

    43. Re:That's exactly right by Anonymous Coward · · Score: 0

      Wind and solar get easily the most subsidies. Nuclear pays its own way (as do hydro and a few others not really mentioned here). Fossils are punished, not subsidized -- *rightly* punished, in my opinion, because the punishment helps account for the externalities that fossil fuels inflict, but nevertheless punished.

      Nuclear insurance is specialized. Nuclear isn't the only industry with specialized insurance pools (oil does too, of course; hydroelectric in some places). That's more a function of the big scale of nuclear plants than anything else. I don't know about the US (I'm not from there) but there's plenty of countries where nuclear insurance is no more government funded than anything else.

      Solar is definitely not cheap at large-scale (it can be fairly cheap for low-scale -- hence the solar-powered calculators instead of oil-fueled calculators). Wind is a complicated story. Both are very regional.

      Nuclear is important and I daresay necessary. Solar is important and probably necessary. Wind is important and probably necessary. Offshore is...interesting and full of potential, and probably has some use in some places, but has some issues of its own right now. Space-based is science-fiction at this point. To the best of my knowledge, biofuel power supplies are not effective at this time. Fossils should be used as little as possible, but they do undeniably have some positive uses which is why they have their niche.

    44. Re:That's exactly right by Cyberax · · Score: 1

      Neither is CO2 emission increasing

      They do. Just lookie here: http://cleantechnica.com/2014/...

      The 2020 goal of 20% less emissions is already unrealistic. I've heard that for the last year there's going to be a mild decrease in CO2 production because of the unusually warm winter, but that's it. Nothing fundamental has changed in Germany's energy outlook - nuclear is still being replaced by coal.

    45. Re:That's exactly right by Dorianny · · Score: 1

      That's the huge difference in scale we're talking about when comparing these technologies. How many people died installing and maintaining all those PV installations throughout the world? If it's more than 1/6th what Fukushima killed, then PV solar in regular operation kills more people than half-century-old nuclear technology on its worst day.

      It is not about the actual number of people killed, rather the threat your average person feels from the technology. To your average person not involved in construction or maintenance, the threat posed by PV/Turbines is negligible, meanwhile average people living withing several miles from nuclear reactors fear the release of radioactive material.

    46. Re:That's exactly right by Anonymous Coward · · Score: 0

      I would like to put a turbine in your cock to gain energy from all that semen you push out through SHEER circlejerking it to these ideas. I bet that it could power THE WORLD!!!!!!

    47. Re:That's exactly right by Anonymous Coward · · Score: 0

      Not if you can handle fourth grade arithmetic. If wind and solar are so cheap, why do you have to bribe people to build them?

      El. Oh. El. As opposed to nuclear power plants, which cannot be built without massive loans from the taxpayer? Nuclear power plants, which offload their true insurance costs onto the taxpayer, not to mention storing radioactive waste for hundreds to thousands of years? It takes a special kind of dumbfuckery to take your worst problem - the fact that nuclear power is completely and utterly unjustifiable based on costs alone - and project it onto something else.

    48. Re:That's exactly right by jblues · · Score: 0, Offtopic

      I can't understand why, whenever I wind power death happens, it just seems to be covered up. I have lost three close friends to wind power in just in the past few years:

      • James: Stopped for a picnic nearby to a wind-farm, with his fiance, Andrea. They'd spread out the picnic blanket and sat down to eat scotch eggs, and drink champagne. "Watch the blades against the backdrop of the sky! It is so relaxing!" he implored his beloved, and they did that for hours. There they were, in a picturesque field, holding hands, and idly describing the shapes they could see in the clouds. "A dragon!", "A dwarf!", "Your tits!", when suddenly a freak strong wind blew up and . . . . well, James was so fixated on following the turbine blades that his head started to spin at 350 revolutions per minute, in a figure-of-eight motion, at first like a very congenial Indian, and then progressively more violent. What happened next should not be written about. James was laid to rest with his head expertly reattached, but it was necessarily a closed-coffin funeral.
      • Lilia: TBD, but definitely wind power related.
      • Wang: Took his Tesla out for a drive when it started to get low on juice. By the selfies that were left behind, he clearly thought himself very clever for hacking a wind turbine to recharge it. But the car now had such a gloriously full battery that he floored it, pedal-to-the-metal all the way home, and ended up driving right past his own house, crashing into a power-pole at the end of the street.
      --
      If it acquires resources on instantiation like a duck, then its a shared_ptr<Duck>
    49. Re:That's exactly right by jklovanc · · Score: 1

      We need mix of nuclear, solar, wind, tidal, etc. None of these are singularly the solution. Even if you group solar, wind and tidal it is not a complete solution.

      I think you miss that there are new nuclear technologies that decrease the issues with current technology. Thorium, breeder reactors, etc are much cleaner than current technologies and in some cases solve the spent fuel problem. The problem is the restrictions in research because many people now equate nuclear with Fukishima and Chernobyl.

    50. Re:That's exactly right by Anonymous Coward · · Score: 0

      Nuclear pays its own way (as do hydro and a few others not really mentioned here).

      Then name the nuclear power plant that rolls the complete costs of mining and refining ore, plant construction, plant maintenance, plant security, and storing the radioactive waste for thousands of years into the rates it charges to customers, or explain how you aren't a complete idiot. The first option is of course impossible, so that leaves you with number 2.

    51. Re:That's exactly right by jblues · · Score: 2

      In some Jurisdictions, the choice was taken to subsidize initially, however Wind turbines reached grid parity (the point at which the cost of wind power matches traditional sources) in some areas of Europe in the mid-2000s, and in the parts of the US around the same time. Falling prices continue to drive the levelized cost down and it has been suggested that it has reached general grid parity in Europe in 2010, and will reach the same point in the US around 2016 due to an expected reduction in capital costs of about 12%.

      So now we have the situation, in Australia, where the incumbent government is very pro coal that traditional sources are, through "direct action" being subsidized to try to get them to be competitive again.

      --
      If it acquires resources on instantiation like a duck, then its a shared_ptr<Duck>
    52. Re:That's exactly right by GPS+Pilot · · Score: 1

      If wind and solar are so cheap, why do you have to bribe people to build them?

      Most people know what you mean, but for those who don't, I'll spell it out explicitly: if wind and solar are so cheap, why do they have to be subsidized so extensively?

      If and when they're able to compete on a level (unsubsidized) playing field, bueno.

      --
      That that is is that that that that is not is not.
    53. Re:That's exactly right by Anonymous Coward · · Score: 0

      many people now equate nuclear with Fukishima and Chernobyl.

      It would be foolish to ignore the cost of these disasters or see that cost as not a part of the cost of nuclear energy production. There are disasters for alternative energies also, and those costs must also be counted. We should be driving for energy production from all sources in every direction, not one or the other. This isn't a contest with only one winner. Nuclear development has been very expensive, so we should use what we developed, but not at the expense of neglecting the development of alternative energy production.

    54. Re:That's exactly right by MichaelSmith · · Score: 1

      Everything which reflects photons works as a sail.

    55. Re:That's exactly right by siphonophore · · Score: 2

      This is spot on. No matter what the environmental catastrophe (Global cooling, global warming, climate change, overpopulation, recycling, deforestation, hunger), "they" always demand the same response: a big step back in quality of life. This thinkprogress piece is a perfect example of it: decarbonization is just the latest red-herring. If they were serious about carbon qua carbon, they'd embrace the only acceptable zero-carbon baseload generation technology. Since carbon is just a tool to achieve their real end, nuclear is [unacceptable, impractical, immoral, whatever].

      This is pretty obvious to me. Maybe I have my crazy mother to thank for shoring me up from common manipulation techniques.

      --
      Dance like you're hurt, Love like you need money, and work when somebody's watching.
      -Scott Adams
    56. Re:That's exactly right by siphonophore · · Score: 1

      From your link: "This assessment, however, does not take into account issues such as dispatch characteristics, capacity factors, fuel and other costs needed to compare generation technologies"

      Poor capacity factor techs are inappropriate for baseload. Think of the small example: one windmill on your house. That's obviously not appropriate because the wind will stop blowing (and you can't store energy). You have to pair the windmill with a baseload generator that has the capability to run your whole house, but you can turn it off when the wind is blowing. Baseload with quick on/off: hydro, nat gas. Your property may not have geography for a dam, so you run the gas generator when the wind stops---not too bad.

      The windmill only saves you gas, not a gas plant. Full redundancy is required, which isn't cheap. It is dishonest to talk about solar or wind without considering capacity factor (until an energy storage system is invented).

      --
      Dance like you're hurt, Love like you need money, and work when somebody's watching.
      -Scott Adams
    57. Re:That's exactly right by siphonophore · · Score: 1

      Step 1. Warn that it will be too costly
      Step 2. Litigate every single step of planning, construction, and maintenance
      Step 3. Be really smug about how right you were

      --
      Dance like you're hurt, Love like you need money, and work when somebody's watching.
      -Scott Adams
    58. Re:That's exactly right by lazy+genes · · Score: 0

      The cost to clean up Fukushima is incredible. It's estimated to be around $250 billion and that's using technologies that we have not even invented yet. The true cost will linger for thousands of years.

    59. Re: That's exactly right by Anonymous Coward · · Score: 0

      This post is too sensible and does not fall in the outliers of political discussion. Thus this pragmatic approach will be ignored. (Sorry for our global loss.)

    60. Re:That's exactly right by plopez · · Score: 1

      Nuclear, oil, gas, and coal are also massively subsidized in the US (often times in the form of, if you don't mind the phrase, dirt cheap mineral leases), in many ways. If all those subsidies were removed only then could we say which is cheaper.

      --
      putting the 'B' in LGBTQ+
    61. Re:That's exactly right by Ichijo · · Score: 1

      Nuclear power, today, is more expensive than wind and in some places, more expensive than solar.

      While this is true for the actual generation of the power it does not take into account the additional costs connected with these technologies. Storage; These technologies are not dispatchable. One can not turn up the wind or sun when needed.

      Nor can one turn up the nuclear reactor when needed.

      --
      Any sufficiently unpopular but cohesive argument is indistinguishable from trolling.
    62. Re:That's exactly right by sugarmatic · · Score: 1

      https://www.eia.gov/todayinene...

      https://www.ovoenergy.com/guid...

      Both have base rates in the high teens, plus taxes, to net at 35-40 cents per kWh retail. The US levelized costs also include these costs (about a third of Denmark or Germany retail costs).

    63. Re:That's exactly right by Anonymous Coward · · Score: 0

      Nuclear Power is "expensive" because pseudo-environmentalists have raised the cost of building plants through a process of ratcheting up expensive regulations which have maximum cost but deminimus safety benefits. They also seek to delay and make more costly the construction process through spurious legal challenges.

      Hanson is right. Once we defeat the Luddites, mankind's energy future has to be nuclear or we will be limited to living on one fragile planet till we go extinct.

    64. Re:That's exactly right by Anonymous Coward · · Score: 0, Insightful

      This more than anything else illustrates how disingenuous the Envirowackos .

      They don't want solutions, they want the issue. When Solar does finally become cheap enough and storage solutions become effective enough, the rabid environmentalists will suddenly fine something wrong with it. Same with all the other technologies. They have spent years burdening the nuclear energy industry with lawsuits, protests, legislation, etc and now they bitch about how much it costs.

      Mdsolar is a shill's shill. He is the definition of the mouth breathing troll in his mother's basement.

    65. Re:That's exactly right by Antique+Geekmeister · · Score: 1

      That is why I used the description "solar sail based power collection" I didn't mean to confuse you by linking the concepts, but hey've often been mixed up in the literature. Ideally, they could use solar wind and solar light pressure for orbital guidance, and reflect solar radiation to a power converter of some sort. For control and aiming, that power center would convert the locally focused solar energy to a more manageable broadcast source, such as a microwave transmitter aimed at groundside collectors.

      This is very distinct from a one kilometer orbiting photovoltaic array, which I've never seen suggested. That would be outlandishly expensive both to build and to orbit.

    66. Re: That's exactly right by Antique+Geekmeister · · Score: 1

      You would certainly need to focus the power. My concern is how _tightly_ you could, or should focus the power. A 1 meter wide beam from a one kilometer solar mirror is effectively a military death ray. By beaming the power to an open field with embedded microwave transmitters of, say, 100 meters squared, and by insisting that the transmitter be built with no capability of focusing more tightly, it's a high energy density but one that can be blocked.

    67. Re:That's exactly right by careysub · · Score: 1

      mdsolar's point isn't that we should build no new nuclear, at least not in this thread. His point is that nuclear can't, in and of itself, decarbonize the electric sector. We simply don't have the capacity to build that many nuclear power plants simultaneously, nor do we have the fuel, nor do we have the money.

      The first one might be overcome. After all, if world leaders were able to simultaneously lay out this plan and get political support for it, part of the plan would include training more engineers, trades, and other jobs necessary. We might not be able to build 100 per year in 2016 (or even 2020), but we could ramp up.

      The world went from building roughly zero a year in 1960 to building 26 a year by 1967, and even then was not an all-out worldwide construction effort. Ramping up large scale construction over a 35 year period should be no real trick, if the funds and will are available.

      The second one might be overcome. After all, with pressure for more fuel, we might go out and find more fuel, develop new techniques to find, recover, and process more fuel, etc. I doubt we could overcome it, but generally speaking if we went "long" on nuclear, at least some more fuel would turn up.

      Lots of fuel has already turned up. Enough for 5,000 years of once-through burning, no breeding or reprocessing. It is in the sea. Technologies have been demonstrated that can extract uranium at about the same price point as uranium spot prices that have already been encountered. The cost of uranium fuel is a very small part of the cost of nuclear electricity, and even if the uranium-from-seawater costs never come down (though surely they will), it does not have an important impact on the cost of nuclear electricity.

      The third one is the toughest. Nuclear power, today, is more expensive than wind and in some places, more expensive than solar. Given that wind and solar don't have the political opposition, don't have 10-15 year lags from "let's build it" to "let's turn it on", and can be built in more places at far smaller increments, it's really tough to argue that we should spend the money on nuclear when there are cheaper options.

      Right, this is the true Achilles heel of nuclear power. The high capital costs, and the long pay-back time. Only intervention by national governments can get large scale power plant construction to happen. The market will never do it. It is important to focus on the true fundamental issue if nuclear power is going to contribute more to zero carbon electricity.

      --
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    68. Re:That's exactly right by Anonymous Coward · · Score: 0

      What's the point of the parent post? It's not funny, certainly not informative and not particularly interesting. It's not redundant (nothing else like it among the other comments, fortunately) which leaves ... nothing?

    69. Re: That's exactly right by thebigbadme · · Score: 2

      Solar panels rob the local environment of the natural solar energy, and wind farms will slow the natural winds and shift weather patterns (significantly at some point), tidal energy harvesting robs the sea, ion-sphear harvesting may well end our magnetosphere. Carbon brings global warming. There is no such thing as free energy, as the energy either already has been stored (coal/oil/NG), or is in use in the environ at the moment. The only sure-proof way not to 100% fuck ourselves right off this rock is for everyone to go pre-industrial again, barring that we at least gotta get rid of capitalism. Radio-active waste disposal is a problem too, but successive generations of reactors are already in design to use spent fuel from current reactors. Regulation and public sentiment are the main things stopping the waste-eatting reactors.

      --
      "It's the Law of the Universe, and I'm the sheriff." Slash-cott 2/10-2/17
    70. Re:That's exactly right by jklovanc · · Score: 1

      Most nuclear plants, and conventional plants for that matter, do not run at 100% capacity all the time. Therefore you can turn them up when needed to compensate for unplanned problems.

    71. Re:That's exactly right by Anonymous Coward · · Score: 0

      > simply don't have the capacity to build that many nuclear power plants simultaneously
      If you buy Caterpillars and Kubotas, they will make more. So will the Indian and Chinese factories that make their own brands. This equipment and the workers will be drawn from the construction industry as a whole. As demand increases, the supply will appear. That's the way economies work.

      > nor do we have the fuel
      I paid $1.69 for gas. I remember paying $4.30 per gas. I could stand another $1 per gallon. Refineries would switch to making a little more diesel and a little less of everything else as they upped production.

      > nor do we have the money.
      Decarbonizing the economy is not going to be cheap.

    72. Re:That's exactly right by hackertourist · · Score: 1

      That cutaway shows that the actual reactor is about 2 m wide and 10 m high.
      A reactor 10 times as powerful (1.8 GW) would need a reactor vessel 10 times the volume, or 3 times the diameter of this one. Your building would grow by 4 m in length and width.
      Compare that with building 10 of the buildings shown in the cutaway.

      That's the nice thing about nuclear power: it scales really well, so it makes sense to build a few really big plants rather than lots of small-capacity plants.

    73. Re:That's exactly right by Xest · · Score: 1

      "The third one is the toughest. Nuclear power, today, is more expensive than wind and in some places, more expensive than solar."

      The problem as I see it is not the cost of nuclear vs. renewables, but the cost of nuclear vs. the status quo. We still have too many gas and coal power plants, and yet their cost is much higher than nuclear when externalities (e.g. health costs) are factored in.

      So the point is that if we're going to insist on keeping expensive plants around, it's still cheaper to replace all our coal plants with less expensive nuclear plants. The cost of coal is hidden in the fact that healthcare issues caused by it are paid by everyone other than the people profiting off the coal plant. If you made coal plant providers pay the respective healthcare costs then coal power would be dead already as for example, in the UK, coal providers would be paying the NHS literally many billions of pounds.

      So the point is we can replace big plants (as opposed to lots of small distributed renewables) like our coal plants with nuclear and still come out better off. Move the cost of paying for coal induced healthcare issues into nuclear subsidy and it'll cost less overall because the population will be healthier and more productive, the cost of healthcare will reduce. Even in states like the US where citizens typically pay for their own healthcare the removal of coal should typically reduce healthcare insurance premiums such that people would have more money to pay for unsubsidised nuclear and still have change left over.

      You're right, we don't necessarily need coal OR nuclear, but given that we have an insistence on these big plant projects, the fact we're even persisting with coal is nonsensical and is only the case due to massive state or private subsidies to the coal industry in private citizens and the government paying for the problems coal causes, rather than the coal providers themselves paying it as should be the case. Coal is only more financially viable than nuclear because that section of the industry has, for historic reasons, managed to shirk responsibility for the bulk of it's real costs onto everyone else. When you pay for coal energy you're paying twice - you're paying your electricity bill, and you're paying your otherwise unnecessarily medical insurance/tax bill as well. Might as well replace with nuclear and just shift the costs where they belong - directly onto the electricity bill where energy market competition would force prices down (towards cheaper renewables in the long run). Right now, heavily subsidised coal is a major blocking problem as it grossly distorts the market and prevents progress when there's no real reason it should because it's simply not as cheap as it pretends all things considered.

    74. Re: That's exactly right by BigZee · · Score: 1

      Many of your points are right but we will have to get a hell of a lot better at capturing natural sources before we have a real impact. Wind turbines would need to be far more densely placed to have any substantial impact on local climate. Its also worth appreciating the fringe benefits to certain options. For example, collecting wave power could reduce coastal errosion.

    75. Re:That's exactly right by serviscope_minor · · Score: 2

      Not exponential. Cubic.

      Everything you've described is a cubic relation. Take the motor: 5^3 * 2.5 = 312.5, bang on the 300MW you quoted. And the 10x improvement for double the size? Well, the cube root of 10 is a bit over 2. It makes sense. Size is generally considered in terms of linear dimensions. Stuff happens in the volume however, and that grows as the cube of the linear dimensions.

      Exponentials are better, but cubes ain't bad either. For example, the sun has about the same power density as a compost heap.

      --
      SJW n. One who posts facts.
    76. Re: That's exactly right by erikmartino477 · · Score: 1

      One of the tricky part is how to save money for decommission of plants and for permanently storing the biproducts permanently. It is very costly also in the long term where the owners may no longer exist. Each generation needs to maintain the capacity to security assess the permanent storage sites indefinitely. The cumulative cost of that is enormous. All those costs will burden the taxpayers and probably not be collectable on the electric bill.

    77. Re:That's exactly right by Anonymous Coward · · Score: 0

      Don't worry. Germany is fine. You are reading the wrong magazines.

      Germany is economically and socially stagnating. And politically, it is gradually sliding back into fascism.

      No, Germany is not fine.

      (I emigrated from Germany to the US.)

    78. Re:That's exactly right by khallow · · Score: 2

      It is not about the actual number of people killed, rather the threat your average person feels from the technology. To your average person not involved in construction or maintenance, the threat posed by PV/Turbines is negligible, meanwhile average people living withing several miles from nuclear reactors fear the release of radioactive material.

      That should be easy then. Just keep running nuclear plants and eventually the public will find something else to be threatened about.

    79. Re:That's exactly right by AmiMoJo · · Score: 1

      I keep hearing this claim being made but never see any evidence. Sure, there are a few lawsuits, but then there are lawsuits over renewables as well (remember all the stuff about humming and flicker etc?) So can you point to a nuclear facility that had to litigate every application and engineering change 36 times, or even just 3 times?

      --
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    80. Re:That's exactly right by AmiMoJo · · Score: 1

      Except that if you read the proposals, like say GreenPeace's fully costed and engineered plan, they are expecting a large increase in quality of life.

      If your house is poorly insulated it will get very cold and very hot. You can try to mitigate that with air conditioning or heating, but then you have problems with uneven temperatures, fans buffeting you, high costs sucking up your income etc. So for a better quality of life, get a house with good insulation and reduce your energy consumption.

      Less pollution, less CO2 emitted, cheaper energy and better products that are cheaper to run all improve your quality of life.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    81. Re:That's exactly right by GuB-42 · · Score: 1

      Since this is about nuclear: here's a cutaway of a "small" (180MW) reactor. This is just the reactor building, not all of the associated buildings, such as the (very large) turbine house, primary and backup support systems, power distribution infrastructure, and on and on. Again, that's a small reactor.

      And that's the reason why we don't build small reactors. Most reactors built today exceed the gigawatt mark.
      And it is also true for fossil fuel plants, and it would be true for reneweables if they weren't dependent on the landscape. That's square-cube law at work here.

    82. Re: That's exactly right by Anonymous Coward · · Score: 0

      I love the comment"kill carbon" . how, and which carbon units are you talking about. You need carbon for development. It's needed for the processes needed for power as well as power. It's the universal lubricant. From your eggs in the morning to get you to work, even in bicycles its needed. Even necular power plants need oils and greases. Just because you want new technology, doesn't mean old pumps and valves are not needed. Even corrosion proof metals need lubricants and preservers. Even solar power plants need lubricants to keep the "machines" running. Which require further investments in oils, and education on development of oils to make them more abundant.

    83. Re:That's exactly right by MachineShedFred · · Score: 1

      Yeah, that's why when the Nevada PUC killed 'net metering' basically every solar company in the nation exited Nevada? Even with the 30% ITC credit being renewed by Congress? Because it's so cheap? In a state that is completely desert and gets more sun than just about anywhere?

      Come on. I love solar power, and want to see it grow as fast as possible, and that's what policies like net metering and the ITC are there for. But let's not lie to ourselves and say that it's cheaper than a big hot thing boiling water to turn a turbine, because it's not. If it was, the utility-scale companies would be building it everywhere instead of big hot things to boil water.

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    84. Re:That's exactly right by MachineShedFred · · Score: 1

      When talking about averages, it's perfectly fine if one data point is above or below, because it's an average.

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      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    85. Re:That's exactly right by MachineShedFred · · Score: 2

      Re: the fuel supply.

      The reason why people keep harping on "we don't have the fuel for that many nuclear plants" is two-fold:

      1. Once a 50-year supply of Uranium was discovered for the current usage levels, they stopped exploration for new deposits. Why search for something that there's already a glut of, and the usage is decreasing? Uranium isn't exactly rare - it's about as common as zinc or tin in the Earth's crust. And, it could be filtered from seawater, though the concentration is very low. In fact, the "world's known reserves" have increased by 25% in the last decade largely coincidentally, as they've found it while looking for other minerals.

      2. As other people have pointed out forever, nuclear technology also brings with it the technology to recycle fuel, as well as turn the metric shit-ton of depleted uranium that was mined already for weapons production and commercial fuel enrichment into reactor fuel through 'breeding'. We've already dug up all the fuel we'd need for 100+ years, if we'd get off our collective asses and just use it instead of treating it like something that needs to be buried forever.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    86. Re: That's exactly right by Anonymous Coward · · Score: 0

      troll or retarded?

    87. Re:That's exactly right by Anonymous Coward · · Score: 0

      Germany's emissions went up when their green lobby had their nuclear reactors shut down in the wake of Fukushima and they turned some coal poweplants back on. Something to think about.

    88. Re:That's exactly right by lars_stefan_axelsson · · Score: 1

      As my combined gas and electricity bill is more 720EUR per year, 2/3 of it for gas.

      And in Sweden it would be 100% electric, as we have cheap electricity which means we use it for cooking and heating (heat pumps). So no gas.

      With roughly 50% nuclear and 50% hydro, that means that our CO2 emissions are much lower than if we were a more "normal" (even "Green") country like Germany. But no longer. Since nuclear isn't "green", and we have greens in the government we'll soon be saying goodby to our nuclear power plants in favour of wind/solar and three times as high prices (aka "German" levels), and we'll instead be saying "hello" to more fossil fuels, like the rest of the world.

      All in the name of saving the planet... It's enough to make you bloody weep.

      --
      Stefan Axelsson
    89. Re:That's exactly right by Anonymous Coward · · Score: 0

      Fuel is relatively easy, if you are open to using LFTR reactors. We'd be using mainly thorium, and recycling the 'used fuel rods' from existing PWR reactors.

      So I don't think fuel is really an issue. There's more than enough thorium to move the entire planet past fissile reactors into fusion reactors, and once we're at fusion there simply isn't a fuel problem.

      No one is saying we need to be 100% nuclear. Wind, water (hydro, wave) and solar can definitely play a part, and in some areas a very significant part. Most of BC's current power production is hydro or natural gas.

    90. Re:That's exactly right by IronChef · · Score: 1

      > They compare Fukushima to a single wind turbine failure and proclaim wind is safer.

      To me it seems like when you talk about nuclear power the average person assumes that a nuke plant is super high tech, the pinnacle of engineering, the safest that it can be. I mean, it's NUCLEAR, right? That's got to be high tech! So we have most people believing that any current *or future* nuclear plant is a possible Fukushima disaster... not realizing there are different designs, more modern ones are safer, and it is possible to design and build plants that are safer still.

      I don't think nuclear can have a big renaissance as long as the average person's understanding of nuclear power is a combination of The Simpsons and Chernobyl.

    91. Re:That's exactly right by Anonymous Coward · · Score: 0

      Actually, that's not really an exaggeration anymore. ISIS and its supporters will attack because they do hate the West's "freedoms" - i.e., cultural practices that do not adhere to their version of Wahhabism, Sufism, or whatever, as they seek to globally expand their self proclaimed caliphate. The West appears as decadent to them, abhorrent, a modern day Sodom and Gomorrah. We must not criticize or even draw their prophet. Women must be hidden under cloth in public. No pork. No alcohol. Even music can be a distraction, a sin. We must fall under Sharia law and repent, or suffer and die, and yet, we kill and resist them; they will not tolerate this. They want their stinkin' global islamic theocracy. For them, it's not just, "keep out of the Arabian peninsula" as it was with Bin Laden.

    92. Re:That's exactly right by siphonophore · · Score: 1

      Ah yes, the old "outsider-dabbler who knows the industry better than the players and the market" fallacy. I knew he would be making an appearance sooner or later.

      Oblig. xkcd https://xkcd.com/793/

      --
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      -Scott Adams
    93. Re:That's exactly right by Anonymous Coward · · Score: 0

      I can't speak to all of the US, but in New York it's the opposite. Commercial rates are much higher than residential, so business subsidizes private power. I think a lot of states are the same.

    94. Re:That's exactly right by david_thornley · · Score: 1

      I like solar and wind power, but they aren't as reliable as nuclear. A nuclear plant can produce the same amount of power regardless of weather or time of day. It's great baseload power.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
    95. Re: That's exactly right by david_thornley · · Score: 1

      There are ideas that look promising. Nobody's tried it anywhere near at scale, and I don't trust novel ideas that haven't been confirmed, but it's certainly worth trying.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
    96. Re:That's exactly right by Anonymous Coward · · Score: 0

      nor do we have the money.

      Yes we do, if we had any sort of a sane process. Most of the cost of a solar plant is spent just dealing with that. The actual cost of the plant is just little more than an equivalent coal plant, and takes about a year or two longer to build.

      Nuclear plants are very expensive. Existing nuclear plants have been retired or warned about pending retirement if they don't receive a bailout.

      These are existing plants that can't compete with the market prices for energy. The effective variable fuel costs for these units are quite a bit lower per MWh than coal or gas, so it is the fixed costs that are the problem.

    97. Re:That's exactly right by jblues · · Score: 1

      Serious? The point is wind power related deaths. A lot of them, as transitive parent stated above. Whenever there's a nuclear accident, environmental damage, injury, death or material stolen to make weapons there is instant press coverage. Wind power? Nobody seems to want to discuss it! They're not even sure how to not discuss it. Is it off-topic? Redundant? Just get me out of here!

      --
      If it acquires resources on instantiation like a duck, then its a shared_ptr<Duck>
    98. Re:That's exactly right by jgfenix · · Score: 1

      Yes but you canÂt make a base load power plant with solar or wind. With nuclear you can.

    99. Re:That's exactly right by jgfenix · · Score: 1

      IsnÂt that more dangerous that a nuclear plant? A little os space trash, a software bug and you have a death ray killing thousands.

    100. Re:That's exactly right by Antique+Geekmeister · · Score: 1

      It's potentially more dangerous, if tightly focused. That's why, for safety's sake, you make sure the power transmitter can't focus a beam narrow than, say, 100 yards wide.

    101. Re:That's exactly right by Keith+Henson · · Score: 1

      There is at least one other option that could scale up to take over not only the electrical load, but the whole fossil energy use of the human race.

      It's power satellites. In the last couple of years we got the cost down to where they can undercut coal. This is a little out of date

        https://www.youtube.com/watch?...

      The updated version of it put the beamed power plants in space.

      --
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    102. Re:That's exactly right by mdsolar · · Score: 1

      Keep running the plants and the fears well be reconfirmed. Another accident will be inevitable.

    103. Re:That's exactly right by khallow · · Score: 1

      And another after that and another after that. There's a reason I'm not concerned about it. The more nuclear accidents there are, the less fear there will be.

      It's just like plane crashes. They happen, but they aren't treated with the same drama they used to be. Further, with each plane accident, we've come to understand the risks of flying and how to minimize those risks to the point that flying is one of the safer modes of transportation by passenger-mile.

    104. Re:That's exactly right by mdsolar · · Score: 0

      Only a nuke nut could love a nuclear accident. Crazy indeed.

    105. Re:That's exactly right by khallow · · Score: 1

      When you're willing to think, I'll be around. There's plenty wrong with nuclear power. Safety isn't one of those things.

    106. Re:That's exactly right by Rakarra · · Score: 1

      There is a very large contingent of environmentalists who feel that nature is "good" and civilization is "evil." Your average environmental-leaning person isn't this way, but it's a strong current under the surface for many of the people who believe strongly in the cause. For them, the Native Americans were the perfect people who lived in perfect harmony with nature, as man should.

    107. Re:That's exactly right by angel'o'sphere · · Score: 1

      and we'll instead be saying "hello" to more fossil fuels, like the rest of the world.

      For what would you need/use the fossile fuel when your heating already is electric?

      and we have greens in the government we'll soon be saying goodby to our nuclear power plants in favour of wind/solar and three times as high prices
      I doubt that ... first of all the greens would need a majourity. And secondly the prices would only rise if the installed power plants would produce the power more expensive or some odd tax scheme would be established. Both is rather unlikely, e.g. fresh installed wind power is already cheaper than nuclear power from ages old reactors.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    108. Re:That's exactly right by angel'o'sphere · · Score: 1

      We had that already.
      Yes, I dispute it, as the number is wrong. 35cents per kWh is not even the maximum any end consumer is paying, how could that be the average? That is complete bollocks.

      Last time we discussed it I gave you half a dozen links with "correct numbers".

      Also you miss the core statement:
      You use 10 times as much power than I use. So: with fixed base costs for wires/transfer/transforming and a rebate on "high power usage" and "no carbon tax" and "no renewable energy tax" obviously your average price per kW is lower because: the fixed costs for transportation / transformation etc. on my side are the same as yours and I get no mass usage rebate but pay three or four taxes you don't pay.

      Simple example: I roughly pay 50% of my electricity bill as grid fees, metering fees and base price, lets call that 'side costs'. The other 50% are my price per kWh times the amount of kWh I use, lets call that 'work price'. I use x kWh per year and pay x * 'work price' for the energy plus the 'side costs'. Now dividing the total amount of money I spent by x the result obviously is 2 times 'work price' / x. So bottom line the price per kWh is twice as high if I factor in the 'side costs'.

      You on the other hand have 10 times x times 'your work price' + 'side costs' divided by eleven. If the 'side costs' would be the same in both cases: obviously your price is already roughly 10% below my price. A no brainer. Now consider that my 'work price' is 50% taxes, which you don't have: obviously your "average price" looks much better than mine. Nevertheless: I still pay over the course of a year much less than you for power. And that is all what counts.

      However: that has nothing to do with the "production cost" of wind or solar power, which was the topic until some idiot again came up with average end user prices.

      Can't be so damn hard to grasp that my taxes I pay on my energy consumption influence the "end consumer" price to my disadvantage but has nothing to do with the economics of power production.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    109. Re:That's exactly right by angel'o'sphere · · Score: 1

      My impression is that in Europe subsidies tor wind, solar, producers are paid from taxes on electricity users rather than from general revenue.
      Of course! What did you assume? Over 50% of the german end user price are taxes. Hence the enduser price is completely meaning less regarding the transition to renewables.

      Here: http://www.strompreisvergleich...
      Enter my numbers,
      Postcode: '76137' (Ihre Postleitzahl),
      usage: 2000 kWh 2000(Verbrauch (in kWh) - I use less but that is not the point)

      The orange number is the price for 2000kWh. The prices include grid fees etc. and if you use more power you get a slight rebate.

      My price here would be 21cents ... all inclusive that is far far far away from 35cents.

      The only thing misleading: they get a bonus for switching the power provider, so my 21cent are not perfectly accurate.

      Emissions have shot up from 802.3 million metric tons in 2011 to 842.8 million metric tons in 2013, a 5.1 percent increase.[16]." http://instituteforenergyresea... (Parenthetically, I don't see a 5.1% increase as being "dramatic". But it IS a step in the "wrong" direction)
      And meanwhile it dropped again ... so why the arguments? We are not allowed to have a single year or two years where we have a mediocre 5% increase? Sigh ... we are the nation that has most dramatically reduced its carbon foot print. And we get critics because over a few years we made a small step back? Wow ...
      http://www.umweltbundesamt.de/...

      We are below the Kyoto agreements and dropping ...

      I would suggest people/nations that criticizes us should follow our example first and try to catch up in emissions reductions.

      Your critics is like criticizing and olympic sprinter: "congratulations Mr. Bolt for your new gold medal in the 2018!" Bolt: "Thank you! It was a tough competition, I'm really glad I could make it again against that field of strong sprinters". Interviewer: "So, Mr. Bolt: why did you run slower this time than last Olympic games? We expected a new record especially considering your form ..."

      (*facepalm*)

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    110. Re:That's exactly right by angel'o'sphere · · Score: 1

      Ah, most "ideas" (lets not call it proposals) I have seen regarding this where based on photovoltaics.
      However your idea is nice, too. Not sure though if a single/simple sail (without fuel etc.) can be used to maintain orbit. Somehow you have to change its angle versus the sun ...

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    111. Re:That's exactly right by angel'o'sphere · · Score: 1

      We already have over 25% decrease in CO2 Emissions.
      http://www.umweltbundesamt.de/...
      We had an increase at 2010, followed by an immediate drop 2011 again, and an increase in 2013 followed by an immediate drop 2014 again. So we had 2 single years that had an increase in relation to the previous year.
      If you count all climate relevant gasses, the decrease is 30%.

      What was your point?

      nuclear is still being replaced by coal
      That is wrong. Even the dumbest yahoo should meanwhile have heard about Germanys investment into Solar and Wind power (and bio gas).

      https://eu.boell.org/sites/def...

      However you could easy look at perfect numbers from https://www.fraunhofer.de/ if you would google for it ... sigh.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    112. Re:That's exactly right by angel'o'sphere · · Score: 1

      It is not a free and open market.
      Then stop comparing american markets with europeans.
      And hence you can stop comparing american prices with europeans. Especially end consumer prices.
      And then you can start figuring why one thing works or does not work or works better than the other.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    113. Re:That's exactly right by Cyberax · · Score: 1

      Well, Germany _is_ dumb. Here's the actual energy mix: https://www.cleanenergywire.or... And I'll just leave this: http://www.theenergycollective...

    114. Re:That's exactly right by FlyHelicopters · · Score: 1

      http://energytransition.de/201...

      Here is another source that says Germans easily pay twice as much as the US, which puts it at 24 cents (or more).

      It also says that one of the reasons most Germans can absorb this is that they only consume about 1/3 as much total power as the average American, so the actual bill isn't so bad.

      Of course, it also says that the average German home is 1,000 square feet, compared to 2,400 square feet, and air conditioning is standard in the US, where it is rare in Germany.

      So you are not going to get the US consumption down to German levels.

      It appears that Germans are willing to pay more, and make do with less. That is their choice, but that choice isn't going to work over here.

    115. Re:That's exactly right by FlyHelicopters · · Score: 1

      The European energy market isn't free or open either...

      The German power market is worse in some respects than anything we have over here...

      At the end of the day, you're kidding yourself if you think wind and solar cost less than coal. They don't. You can make them cost less, by playing around with the market, but on their own, they don't.

    116. Re:That's exactly right by lars_stefan_axelsson · · Score: 1

      For what would you need/use the fossile fuel when your heating already is electric?

      For heating, cooking etc. Just like the continent. When electricity prices triple (like they will when we reach German levels), then people will of course change their heating systems, as that becomes economically advantageous. We'll go back to (mainly) gas, again, like the rest of the continent/world. Hell, at those prices, we could see people going back to oil, as you could (almost) cover the cost of that. Since most houses have a water borne heating system (i.e. with radiators/in-floor heating) changing to another source is relatively cheap and easy.

      I doubt that ... first of all the greens would need a majourity.

      American right? In a parliamentary system you don't need a majority to be part of government. It's just a question of how well you negotiate (we don't even have a majority government for that matter). That we're set to close down our nuclear is already a fact. The decisions have already been made, and the laws are there, so there's nothing to argue about there.

      And secondly the prices would only rise if the installed power plants would produce the power more expensive or some odd tax scheme would be established. Both is rather unlikely, e.g. fresh installed wind power is already cheaper than nuclear power from ages old reactors.

      Nope. Prices are, like everything, a question of supply and demand. That a wind turbine might deliver electricity "cheaper" per kW (which isn't objectively true BTW) is of no consequence if you don't build the thousands upon thousands that are needed to replace just one reactor. Since we have been oversupplied by electricity and hence have been enjoying low prices will of course end. No electricity producer will build a couple of ten thousand extra wind mills just to keep prices low. It doesn't work like that.

      Second, changing from wind to nuclear needs a new national grid, as our wind would be preferably put in the north of the country. To replace our southern nuclear generators we would need massive investments in our transmission capacity (conveniently ignored in the "cheaper" argument). Again no-one would do that to even replace current capacity, we're talking about a doubling of transmission capacity. It's gotten to the point that large wind parks in the north are now being blocked, because the transmission capacity to get the power to where anybody would be interested in it, just isn't there.

      Again. If electricity prices increased sharply in Germany, and that's ignoring the transmission problems, that are only masked by the rest of Europe (mainly France) covering for the instability of the German grid, why do you think that Sweden could magically avoid the same fate? Especially as our power was markedly cheaper to begin with.

      --
      Stefan Axelsson
    117. Re:That's exactly right by Antique+Geekmeister · · Score: 1

      The orbital maintenance is subtle, but feasible. There are many papers on it, including http://wiki.solarsails.info/im... . One has to "tack" the solar wind, using the consistent thrust from the sun, and manipulate the angle of the solar sail to the solar wind. With a relatively heavy satellite to which the sail is tethered, you can theoretically shorten the leads that connect one side of the sail to help create that slight angle. I'd also suggest keeping a slight electrical charge on the sail, to help it stay fully deployed even if it happens to orbit behind the Earth's shadow. But that kind of orbital maneuvering is vital to both earth-orbiting solar sails, and to asteroid mining solar sails, and it's reasonably well understood.

      Note that this is all very gentle orbital control. No depletable thrusters would be needed in active service except, very possibly, for urgent emergencies such as time-sensitive decommissioning. The maneuvering is extremely low acceleration, and the entire structure except for the power transmitting central body is very light, very flimsy, and very cheap.

    118. Re:That's exactly right by angel'o'sphere · · Score: 1

      Sorry, you are simplifying extremely or we have a missunderstanding what orbital control means.
      To "control an orbit" you need to be able to increase orbit velocity and to decrease it.

      That means in once case we have a satellite orbiting the sun in this configuration: O *-\ and for the other case in this: O *-/

      O - sund
      * - satellit

      As a sail is incredible big, it is quite far away from the satellite. That implies the ropes are quite long. I doubt you can simply pull in ropes on one side and release them on the other side. Hm ... but we could think about such a schema ... it is nevertheless interesting.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    119. Re:That's exactly right by Antique+Geekmeister · · Score: 1

      Yes, the ropes or ties would be very long. They'd also have to be extremely lightweight, in order to reduce the mass of the solar sail apparatus. I'd expect the solar sail to have a mesh of of light reels with space capable monofilament or extremely fine wires. And yes, indeed, I'd expect to be able to release or reel in and reel back out at least some of the leads for the combination solar sail and solar mirror.

      It might be much easier and safer to do with smaller satellites, say 100 sails each 100 meters wide, rather than a single kilometer wide sail. That could reduce the complexity of managing kilometer long leads, at the expense of having to manage 100 times more sails..But in theory, this might be much safer.

  21. Drone diplomacy by Anonymous Coward · · Score: 0

    The U.S. depends on the hegemony of its dollar for oil transactions. It can control these transactions to guarantee the sovereignty of its currency and thus its value, no matter how much it prints. Unless the U.S. can force suppliers of nuclear fuel to accept only U.S. dollars, they will not allow any energy scenario to supplant oil.

  22. renewables by phantomfive · · Score: 5, Interesting

    There are two problems with solar: night and clouds. There is one problem with wind: it's not always windy. Wind installations are typically combined with natural gas burners to supplement electricity when it's not windy enough.
    Nuclear is the only power source that can handle a huge load constantly without interruption. That is why Hansen supports it, because if you want to stop releasing CO2 into the atmosphere without messing up our lifestyles, it's the only way with current technology.

    The article cites this paper, which claims to have found a way to handle electricity generation from wind/water/solar while dealing with the interruptions. It assumes by 2050 all residential and commercial heating will have thermal storage, like this community in Alaska. It is up to you to decide if that is a reasonable or practical assumption.

    --
    "First they came for the slanderers and i said nothing."
    1. Re:renewables by Anonymous Coward · · Score: 1

      Clouds aren't much of a problem. they reduce the peak but increase the morning and evening amounts. This is ALSO taken into account when sizing a place. More clouds? More panels. It is NO PROBLEM AT ALL. And nights are pretty predictable.

      It is ironic when the very earliest posts go and say "Oh, right, so just because it can't solve all our problems, it must be no good at all" to defend nukes, and here you are using the same damn argument (which as you see above is specious) to detract from renewables.

    2. Re:renewables by phantomfive · · Score: 2

      It is ironic when the very earliest posts go and say "Oh, right, so just because it can't solve all our problems, it must be no good at all" to defend nukes, and here you are using the same damn argument (which as you see above is specious) to detract from renewables.

      I didn't say that. You misread. I have no problem with solar power, it's kind of cool.
      That doesn't mean we can just build solar and wind and get rid of all our CO2 power generation. With current technology, the only practical way to do that is nuclear.

      --
      "First they came for the slanderers and i said nothing."
    3. Re:renewables by SoftwareArtist · · Score: 1, Offtopic

      Fortunately, wind and solar complement each other nicely. The wind tends to pick up around sunrise and sunset, two times when solar is far from its peak. Storms also tend to bring increased wind at the same time they block the sun. As a result, wind and solar are anticorrelated, and the sum of the two is much more consistent than either one alone.

      But in any case, all this means is that we need to incorporate storage into the grid. That's a big project, but it doesn't require any new technology. Existing, mature technologies (batteries, thermal storage, hydrogen, etc.) are well up to the task (though undoubtedly they'll continue to advance with time). In contrast, most proposals for nuclear rely on cutting edge, very immature technologies (breeder reactors, thorium, etc.).

      --
      "I'm too busy to research this and form an educated opinion, but I do have time to tell everyone my uninformed opinion."
    4. Re:renewables by phantomfive · · Score: 1

      Existing, mature technologies (batteries, thermal storage, hydrogen, etc.) are well up to the task

      That's optimistic.

      --
      "First they came for the slanderers and i said nothing."
    5. Re:renewables by rasmusbr · · Score: 1

      Night is hardly a problem since we use very little energy at night (unless it's extremely cold outside, more on that later...). Clouds are a problem in some areas at certain times of year, like if there is a rain season or a cloudy season.

      The really, really big problem with solar is winter in the places that have winter.

      If you live at the equator and use solar and wind for your energy, your storage needs are on the order of 1 day of average consumption. If you live in Germany, your storage needs are on the order of 4 months of average consumption. So your storage cost in Germany is going to be on the order of 100 times your storage costs near the equator. The problem is made worse by the need for additional heating during winter.

      You could probably still power Germany on solar with the right technology, but it would have to be a completely different kind of technology. It would essentially have to be something that converted solar radiation to fuel which you would store in tanks during the summer half of the year and consume during the winter half of the year.

    6. Re: renewables by Namarrgon · · Score: 1

      There are many mature grid-scale storage technologies right now, and more that are newer but already commercially available (e.g. reflow batteries). You could argue that cost or efficiencies limit the practicality of some types in some situations, but to repeatedly wave them all away and claim that nuclear is the "only" option (with zero supporting data) requires a deliberate effort to keep one's mind firmly closed.

      --
      Why would anyone engrave "Elbereth"?
    7. Re:renewables by angel'o'sphere · · Score: 1

      Wind installations are typically combined with natural gas burners to supplement electricity when it's not windy enough.
      No, they are not. They already exist.
      For the grid it is irrelevant if a lot of consumers come unexpected online and the gas plants have to fire up, or the wind drops and the gas plants have to be fired up.
      Regarding wind, you know hours in advance how the plant will perform, so you actually don't even need fast reacting gas plants, you can compensate the fluctuation with coal or nuclear or what ever (ordinary or combined cycle gas plants e.g.)

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    8. Re:renewables by Anonymous Coward · · Score: 0

      I don't know about where you live, but where I live, night time there's not a lot of wind. Toss in a push towards electrics which would charge during "off hours" at night time, and now night generation needs to be much larger and well.....yeah. We need a solution for base production that works regardless of the weather. And most places I've been, the wind isn't blowing at night unless there's a storm.

    9. Re: renewables by phantomfive · · Score: 1

      Reflow batteries are cool, but they add expense to the system. I mean, we could just throw a bunch of lithium batteries at the thing, but again we're talking about what's practical, and that would be too expensive.

      --
      "First they came for the slanderers and i said nothing."
    10. Re:renewables by mdsolar · · Score: 1

      Turns out you are mistaken. http://thesolutionsproject.org...

    11. Re:renewables by phantomfive · · Score: 2

      If I were mistaken, those people would be out building solar plants instead of building a website "asking me to join them"

      --
      "First they came for the slanderers and i said nothing."
    12. Re: renewables by Namarrgon · · Score: 1

      Certainly; cost is always a factor, including for nuclear. Almost anything is possible, given enough time & money, but cost effectiveness is still paramount - IF you consider all significant lifetime factors, including capital, ongoing, post-lifetime, and at least best estimates of external societal costs.

      I'd love to see more comprehensive levelised cost comparisons of a much wider range of grid options, including solar & wind backed by a range of different storage technologies, nuclear, and even fossil-fueled options too. It'd be fascinating to see how these have been changing over time, and how they change by site, payoff times, residual/decomissioning costs and externalities. Too much discussion is reduced to "it just isn't practical" and "this is better, because reasons", or "that would be too expensive".

      This AETA updated report on energy options for NSW, Australia, is an excellent start, and has some great information in graph form towards the end, including . Unfortunately, a change in government since the original report has resulted in carbon prices being excluded, which is unfortunate as that was a reasonable proxy for the many external costs to society, but even without that it can still add some much needed reality to the picture. Got any links to even more comprehensive studies?

      --
      Why would anyone engrave "Elbereth"?
    13. Re:renewables by Ichijo · · Score: 1

      Nuclear is the only power source that can handle a huge load constantly without interruption... if you want to stop releasing CO2 into the atmosphere without messing up our lifestyles, it's the only way with current technology.

      Unfortunately, electrical demand is not constant, and nuclear can not ramp up and down in response to hourly fluctuations in demand. To fix that, you need grid storage, or natural gas peaker plants, or demand-response smart meters. Coincidentally, these are the same fixes for the intermittent supply problems with wind and solar.

      --
      Any sufficiently unpopular but cohesive argument is indistinguishable from trolling.
    14. Re:renewables by Anonymous Coward · · Score: 0

      I can't say that I stay informed up to the minute in power storage, but I've seen no evidence that any of these can do this particular job yet. The quantity of power needed to last for hours is massive. As I understand it, power facilities have buildings full of capacitors just to respond to momentary fluctuations - a few seconds at best. Batteries aren't fast enough, don't store enough, don't last long enough, and in the quantities needed would produce lots of toxic waste themselves. As far as I know, the best power storage today is still using surplus power to pump water uphill so that it can be released into a gravity-fed turbine when they "need it back" (about 70% efficient, IIRC). Storage technologies are improving all the time, and we may have something better in a handful of years, but unless maybe thermal is far better than it was a few years ago, we don't seem to have it yet.

    15. Re:renewables by jgfenix · · Score: 1

      Wind turbines shut down during storms.

  23. Existing plants too expensive, closing by mdsolar · · Score: 1, Insightful

    Existing plants are too expensive to run and are closing. http://insideclimatenews.org/s... Nuclear in not cheap at all.

    1. Re:Existing plants too expensive, closing by jez9999 · · Score: 1

      This from a country that spends half a trillion $ a year on defense.

    2. Re:Existing plants too expensive, closing by thegarbz · · Score: 1

      Existing plants are too expensive to run and are closing.

      Find me anything that was built in the 1970s which has had complete stonewalling when it comes to upgrading and improving efficiencies while endlessly being bogged down with more and more regulatory overhead, that is still open. It doesn't exist. Plants close due to newer technologies and designs providing massive efficiencies, and due to local environments making the existing plant not viable. One plant I worked at spent a good portion of its profits appeasing new environmental regulators. Not that we were appeasing them by running the plant in any different way, just the monitoring requirements added an incredible overhead for equipment and people to sit down take readings and prepare an endless stream of long reports that no one reads anyway.

      Actually it's quite fascinating that plants are closing in American, most of them are Gen 1 reactor designs, some of them are at risk due to license issues and NIMBYs not economics, and that doesn't change the fact that many non-American countries are actively building up nuclear reactors as a solution to their power requirements.

  24. Biased article with incorrect facts by Anonymous Coward · · Score: 0

    With a name like MDSolar, it's clear where the bias lies in this author.

    The fact is nuclear power is the only reliable, clean source of fuel. It's primary issues relate to the initial up front cost and the lack of scalability day to day to meet the power grid's demands. However the next generation of reactors will solve the cost problem; most are moving to a modular concept for the Gen 4 reactor where the reactors can be mass produced in a factory and rail shipped to a location for installation, which can reduce the overall cost by 80 to 90%. These reactors already exist, as the reactors used on submarines and aircraft carriers are already that size.

    Wind is to unreliable and expensive. Solar is good but you're a fool if you think it's free; solar arrays and the power lines needed to bring them to the grid are hugely maintenance heavy so it's cost effectiveness is minimal. Nuclear is by far the best option.

  25. Solution: Simple by Anonymous Coward · · Score: 0

    Build them in Mexico. Pipe the electrons up here. Mexico will be told: build the wall or build our power plants. Need more then same with Canada.

  26. Maybe 25% nuclear by BlueCoder · · Score: 1

    But capable of %80. It's going to take a combination of everything. Run nuclear the backbone but use up renewable where and when you can get it.

    And I'll gladly live next to a reactor if I get a little something out of it... like free power for life. You could build it in the desert and I'd move right next to it and just crank up the AC.

    But really we need to focus more on small thorium reactors with enough classic reactors to breed the thorium. And truly our country needs to get off it's ass and start recycling nuclear waste.

  27. It isn't an all or nothing approach... by gbcox · · Score: 1

    The biggest problem nuclear has is the "3 Mile Island", "Chernobyl", "Fukushima" effect. Basically, when things go bad, they can go REALLY bad. Then of course, there was the San Onofre maintenance issue which generated a ton of bad publicity - in a highly populated area; ultimately leading to the shutdown of the reactor. People don't like the idea of being radiated; and understandably so. It is an extremely high hurdle to restore public confidence. Even those who claim to be "pro-nuclear" would say "yes, fine, as long as it isn't in my back yard". The new designs are far safer and more efficient. The industry needs to now solve the PR issue before it can gain traction again - which means an expensive campaign. Nothing is going to change until that happens.

    1. Re:It isn't an all or nothing approach... by Anonymous Coward · · Score: 0

      And compare those disasters to what has happened when we have had a catastrophic failure at a hydroelectric dam...

      More people have died due to single dam failures than have died in all of the nuclear plant accidents combined. Yet we still build dams, don't we?

      The problem is people don't actually understand nuclear power, and listen to the morons who are filling their heads with fears.

    2. Re:It isn't an all or nothing approach... by RandomFactor · · Score: 1

      If by 'REALLY bad' you mean expensive TMI might belong in the list, but not a single person died or even got cancer as a result of TMI.

      --
      --- Mercutio was right.
    3. Re:It isn't an all or nothing approach... by ravenshrike · · Score: 1

      TMI was the antithesis of bad. It was a mild annoyance that was really fucking expensive. Chernobyl is what happens when the Soviet govt. purposely fucks around with its reactor as a testbed. So the only actual nuclear accident with any casualties or long lasting problems was Fukushima. Which is what happens when the diesel generators are located in the worst place possible and a fucking tidal wave hits the nuclear power plant. That's a pretty fucking good track record.

    4. Re:It isn't an all or nothing approach... by gbcox · · Score: 1

      It doesn't matter if anybody died or got injured. TMI was a PR disaster for the industry. I think this quote pretty much sums it up: "The only negative long-term health effect from TMI has been mass psychosis caused by the Hiroshima Syndrome."

    5. Re:It isn't an all or nothing approach... by angel'o'sphere · · Score: 1

      How can Fukushima be the only reactor with causalities (one worker died due to an accident, right?) when Chernobyl kille din the first years thousands and is estimated to kill in the long run a million?

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    6. Re:It isn't an all or nothing approach... by Anonymous Coward · · Score: 0

      Well....compare TMI to this analogy. It is a flawed or not perfect fit analogy, which is the nature of analogies.
      Two guys, one at Chernobyl, one at TMI, pull out a gun and shoot into a crowd. Some people get hit and die at Chernobyl, but no one gets hit at TMI.
      TMI was an expensive clusterf**k, and no one died (maybe). But another view is to say, {phew! we really dodged a bullet).
      The other view: It's been a long time but 10 or more so years ago I found a website that appeared to be run by locals near TMI. It has a lot of arguments about issues such as 1. the failure of the company to fully release data, 2. increase birth defects and cancers 3. increase livestock deformities (cows and pigs are highly inbreed in modern agriculture, resulting in a long of still births and birth defects, so I would need to see convincing studies on that). 4. criticism of the quality, methodology, or lack of scientific investigation(s) into the various issues.

      One interesting reply by some person/people/entity on the side that TMI did not cause any of this was interesting in a rather surreal way. It goes like this. Prior to TMI there were releases of radioactivity/radioactive material in the area from a nearby military base. [I forget, but seem to remember those releases were in the prior 1 or 2 decades]. Therefore any increase in cancers or birth defects if they were caused by release of radioactive materials from TMI, cannot be separated out from the military releases. It would be impossible for epidemiology or other studies to show any increased in cancers or defects were caused by any TMI release because of contamination of the populace from the military release... and then in some creative logic, since it can't be shown/proven TMI is the cause, then TMI is in effect, found innocent.

    7. Re:It isn't an all or nothing approach... by DarenN · · Score: 1

      Chernobyl was not really an accident, though - Chernobyl is what happens when you turn off all the safeties and then deliberately stress the reactor to see what happens, and have your B team there and no backup plan. Chernobyl was deliberate. The result was not what they expected, but they effectively pushed the big red button to see what would happen. And even then the casualties were light (using WHO figures, your opinion on their reliability is your own), especially compared to the fear that it generated.

      Argue economics about nuclear, but it has an enviable safety record. The problem is perception - you can name all the nuclear accidents but probably few, if any, accidents for coal or gas, even if the casualties were higher. Heck, dam failures are more devestating but people are still more afraid of nuclear.

      Other opinions:
      Orbital solar is unlikely to happen because no-one is going to allow anything that can beam energy in the control of another nation in orbit at the moment, all other considerations aside.
      Solar panel production is going to become a bottleneck - particularly the raw materials needed - if the solar build out accelerates significantly. In the long term it will only become the bulk of power generation if we get continent sized grids or better grid-level storage. It is the preferred solution, for sure, but it will take time.
      Wind is situational and without better storage or matching generation will not be a trusted generation source. Also, offshore wind is going to be really, really expensive on maintenance. Few substances are as corrosive as salt water. Otherwise we'd be using tidal generators everywhere.

      --
      Rational thought is the only true freedom
    8. Re:It isn't an all or nothing approach... by david_thornley · · Score: 1

      Chernobyl isn't happening again. Fukushima is roughly about the worst we're going to get. Fukushima was not good, but it was way overblown, to the point that many people over here skipped over the 25K deaths from the tsunami. That really should have been bigger news. We can have the very occasional Fukushima without more problems than other power sources have.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
    9. Re:It isn't an all or nothing approach... by angel'o'sphere · · Score: 1

      The problem is perception
      No, the problem is: what worst case can happen.

      allow anything that can beam energy in the control of another nation in orbit at the moment
      That is nonsense.
      First: no one can prevent the lifting without an act of war.
      Secondly: the beam down would be low density microwaves, no one would that even notice.

      Solar panel production is going to become a bottleneck
      That is nonsense. The solar panels we typically put on roofs are made from: sand

      Wind is situational Depends on the size of the area, no?
      and without better storage or matching generation will not be a trusted generation source. Tell that the countries that use significant wind power.
      Also, offshore wind is going to be really, really expensive on maintenance. Few substances are as corrosive as salt water. That is why the generators are 200m above sea niveau ... there is no salt water. Also, for obvious reasons: the generator nacelle is water tight.

      Otherwise we'd be using tidal generators everywhere You probably mean wave generators?
      Most tidal plants need a big basin that is filled during high tide and emptied during low tide. So four times a day for roughly 2h each, it does not generate power at all. And more important: you need a suitable spot at the coast and a high enough difference between low tide and high tide.
      Similar problems with the 2h break periods have current based tide generators. They exist and work well, maintenance and corrosion seem solved problems: but again you need special spots where the currents are strong enough. We build them around the british islands btw.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    10. Re:It isn't an all or nothing approach... by DarenN · · Score: 1

      No, the problem is: what worst case can happen.

      Which is? They run tourist trips to Pripyat! There is an area around it that you probably wouldn't want to live in if you didn't have to, but bear in mind that Chernobyl WAS a worst-case scenario - the reactor exploded. The world's still here.

      First: no one can prevent the lifting without an act of war.
      Secondly: the beam down would be low density microwaves, no one would that even notice.

      I did flag these as opinions! I think that it would require an international agreement before beaming and form of concentrated energy back to earth would be allowed by governments. And if you think that people will be happy about "being bathed in microwaves from a space satellite" no matter how diffuse, you haven't been paying attention to the media.

      That is nonsense. The solar panels we typically put on roofs are made from: sand

      Please stop saying this. It's like saying "my i7 processor is made from: sand!". It requires microchip grade silicon, rare earths, and copper to make a solar panel. You can't go to the beach and steal a kid's sand-castle to make one. In particular there is a potential bottleneck around the supply of rare earths.

      Wind is situational Depends on the size of the area, no?

      Yes it does. But what it means is that the total installed power generation capacity will (probably) never be reached which leads us to:

      and without better storage or matching generation will not be a trusted generation source.

      Tell that the countries that use significant wind power.

      It appears that these countries are building LNG and Coal backup plants, such as in Germany? Germany also can import nuclear power from France on a calm day. Another wind-power stalwart, Denmark can import power from the Scandinavian peninsula's hydro power and from Germany's neigbours via Germany too. Wind is a great power source, but pretending it doesn't have issues around base-load at the moment is disingenuous.

      Also, offshore wind is going to be really, really expensive on maintenance. Few substances are as corrosive as salt water.

      That is why the generators are 200m above sea niveau ... there is no salt water. Also, for obvious reasons: the generator nacelle is water tight.

      The pylons will require significantly more maintenance than their onshore cousins, as will the blades.

      You probably mean wave generators?

      Yeah, I did. Theoretically, they are great but practically the maintenance considerations make them non-economic right now.

      Most tidal plants need a big basin that is filled during high tide and emptied during low tide. So four times a day for roughly 2h each, it does not generate power at all. And more important: you need a suitable spot at the coast and a high enough difference between low tide and high tide.
      Similar problems with the 2h break periods have current based tide generators. They exist and work well, maintenance and corrosion seem solved problems: but again you need special spots where the currents are strong enough. We build them around the british islands btw.

      Maintenance and corrosion are "solved" by very, very intensive maintenance.

      --
      Rational thought is the only true freedom
    11. Re:It isn't an all or nothing approach... by angel'o'sphere · · Score: 1

      It requires microchip grade silicon, rare earths, and copper to make a solar panel.
      Solar panels don't need rare earths, for what should they be useful? And if they would, what would be the problem? The "rare" in the name is from history when they got discovered ... they are not particular rare. Same for copper, it is actually not needed at all. Perhaps you mean the wiring, but copper is used for a huge deal of wires anyway. Again I fail to see your point.

      It appears that these countries are building LNG and Coal backup plants, such as in Germany?
      No, they don't. That Germany is building up coal plants is a /. myth. We replaced a few old plants with new ones. That is all.

      Germany also can import nuclear power from France on a calm day. Yes, we can. But the reasons for imports are not "calm days" but that the nuclear power from France is cheaper than our own coal power.
      Another wind-power stalwart, Denmark can import power from the Scandinavian peninsula's hydro power Yes they can. And they do. And guess what: we don't really call that "importing" when we are in a Europe wide international grid. Norway imports Danish wind power, Denmark imports Norwegian Hydro power: so what???? That is how grids work!!!
      and from Germany's neigbours via Germany too. Wind is a great power source, but pretending it doesn't have issues around base-load at the moment is disingenuous.
      Base load is not what you mean it is. Wind power is replacing mostly base load plants in Germany ... you did not know that? Perhaps you might google up what "base load" is.

      Regarding Chernobyl: it was the worst disaster so far, but that is not the worst case. The same disaster with simply a different wind direction blowing the fall out directly over the town had caused 100,000s of deaths in a few days or weeks. And even that would not be worst case ... imagine a bigger plant, "better placed" close to a multi million megapolis, e.g. in the "Ruhrgebiet".

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  28. I don't buy it. by XB-70 · · Score: 1
    Nuclear power is NOT the be-all and end-all. That being said, Beijing is so polluted that it's sickening the country's LEADERS! As such, they have built some 25 Nuclear plants with another 26 or so coming on-stream. The French have an excellent nuclear program. Ontario does too (except for ridiculous cost overruns).

    Sloth: Sticking our heads in the sand rather than making the science better solves nothing.

    Thorium: Pretty much not able to go critical. The flaws are very high corrosion of the system but thorium is plentiful planet-wide.

    Solar: In the end, it's the way to go - but it will take a while before commercial production is at a cost-effective price point.

    Wind: Yeah, right. Inconsistent with horrible returns on investment (18 yr payup).

    Storage: using lead batteries in cars all over the planet to store energy at night has serious long-term consequences...

    Best bet: A combination of solar and hydro: daytime sun pumps water to run turbines at night...

    Meantime: We don't have a choice about cutting down on carbon output so let's go nuclear.

    Lastly: We are not tackling the issue of methane from animal husbandry. This eclipses all other pollutants and is being ignored as a major contributor.

    --
    *** Don't be dull.***
    1. Re:I don't buy it. by angel'o'sphere · · Score: 1

      Wind: Yeah, right. Inconsistent with horrible returns on investment (18 yr payup). And for nuclear plants? 30 years? Or even 50 years meanwhile?

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  29. Only solution to climate change is a lower standar by Anonymous Coward · · Score: 0

    Barring breakthroughs in fusion or another new energy source, the only solution to climate change is that 1st world countries are going to have to reduce their standard of living. Ultimately it will happen one way or the other.

  30. Offshore wind by mdsolar · · Score: 3, Interesting

    Offshore wind looks to have a good chance at getting very cheap. The capacity there is overwhelming.

    1. Re:Offshore wind by jklovanc · · Score: 2

      The problem with offshore winds is the high initial costs and high maintenance costs.

    2. Re:Offshore wind by rrohbeck · · Score: 2

      Higher cost than nuclear?

    3. Re:Offshore wind by Antique+Geekmeister · · Score: 5, Insightful

      > Higher cost than nuclear?

      Nuclear scales up better, and is more consistent than wind power. It also stands up to tropical storms much better, for those parts of the world that have them. The much larger difficulty for nuclear is its waste, which has never been handled well. Another is its limited supply: until and unless we can switch to thorium as a more plentiful nuclear fuel, uranium and similar high energy yield isotopes are rare. And refining "fuel grade" uranium is very awkward, and dangerous if misused to make weapons grade uranium. One can use breeder reactors to enhance low grade uranium, but it still consumes the low grade uranium.

    4. Re:Offshore wind by Anonymous Coward · · Score: 1, Interesting

      One can use breeder reactors to enhance low grade uranium, but it still consumes the low grade uranium.

      Exactly. Thorium fuel cycle yield Uranium 233 which is otherwise rare. Once the breeding starts however, we might as well consider source of fuel virtually infinite.
      Additionaly Thorium reactors can burn MOX fuel which can be the mixture of the reactor's own exhaust. That means more fuel and less spent fuel that goes into long term storage.

    5. Re:Offshore wind by Anonymous Coward · · Score: 0

      > and is more consistent than wind power.
      No, it is NOT. nuclear power plants go offline unplanned.

    6. Re:Offshore wind by Anonymous Coward · · Score: 2, Insightful

      Nuclear scales up better

      Absurd, considering the economic argument. Take any nuclear plant in the world... one of them. When you consider all the costs involved, including massive government subsidies, massive construction costs, massive education costs, security costs, massive decomissioning costs, endless waste storage costs, none of them will ever break even... they will keep sucking money hundreds of years after they stop producing power.

      Nuclear power has a short term benefit for us for the next 200 years, at best. It is not the end-all solution, forever. It can't be because we cannot afford its endless costs. We need spread out the investment in power more evenly in other, and all other, alternatives. Nuclear power needs to compete economically, and it never has yet.

    7. Re:Offshore wind by Anonymous Coward · · Score: 0

      What on earth does "Nuclear scales up" even mean???? It's a nothing phrase and SAYS NOTHING.

      And as to consistent, the UK has to increase their backup capacity because the new nukes can go down and take a massive chunk out in minutes. This doesn't happen with wind. And tropical storms take out your grid, so it doesn't matter if the plant is still running.

      Meanwhile, wind manages tsunamis and earthquakes better than nuclear.

      And is cheaper, by a LOOOONG shot.

    8. Re:Offshore wind by rrohbeck · · Score: 1

      So the answer is no, right?

    9. Re:Offshore wind by MarkRose · · Score: 3, Informative

      "Fuel grade" uranium can be very cheap, depending on the reactor technology chosen. For instance, CANDU reactors run find on unenriched uranium. CANDU can also burn thorium.

      I think LFTR is the way to go, once the technology is fully developed, since it is much more efficient and produces far less waste.

      --
      Be relentless!
    10. Re:Offshore wind by Rising+Ape · · Score: 2

      Not all at once they don't. Variability in a fleet of nuclear plants is far lower than in a fleet of wind turbines of the same capacity.

    11. Re:Offshore wind by jklovanc · · Score: 2, Informative

      Show me examples. The only ones I know of are when there is a major grid failure and the plant is shut down as a safety measure. Capacity factor is the ratio of actual production vs theoretical production. Notice how the capacity factor of nuclear is usually very high. That means it does not go down very often.

    12. Re:Offshore wind by Chas · · Score: 2

      > and is more consistent than wind power.
      No, it is NOT. nuclear power plants go offline unplanned.

      Learn to read. They didn't say nuclear plants don't go offline.

      Merely that the power output is more stable and consistent. Nuclear plants DON'T go into shutdown every couple days.
      Wind, however, can be hit or miss for days.

      Too little, the turbine doesn't turn.
      Too much and you have to lock it down because you're burn the turbine.
      Then you have all these plants burning natural gas as a fallback instead.

      --


      Chas - The one, the only.
      THANK GOD!!!
    13. Re:Offshore wind by MichaelSmith · · Score: 1

      But also, wind generators and PV cells can be made anywhere you can do mechanical engineering. Even if it was possible to build fission plants in the back blocks of Chad or Pakistan, would we really want people to do that?

    14. Re:Offshore wind by Boronx · · Score: 1

      This is true, but they are getting better at not tripping the plants.

    15. Re: Offshore wind by Anonymous Coward · · Score: 0

      Uranium is plentiful in the earths crust, heck even ocean water has a natural occurrence of the material. The problem is indeed its waste because of the "weaponized uranium" scare. But uranium isn't any more unstable than other times, the only issue would be with it disappearing to other countries in large quantities at that stage. If you just depleted the uranium completely, you wouldn't need to have a lot of fuel maintenance, you could run reactors for years even decades on the same fuel rods and you wouldn't need to store fuel that's only been used for 20% to decay naturally to weaponized uranium in a cave somewhere in the midwest. Within a few years all that unspent uranium will be a prime target for weapons makers and the problem will politically be largely forgotten to do something about it.

    16. Re:Offshore wind by Chas · · Score: 3, Informative

      They said "SCALES BETTER". Not necessarily "costs less".

      In terms of land-use, nuclear has between 4 and 6 times the energy density per installation. And that stays fairly constant over the life of the reactor. PV Solar and wind have diminishing output over their lifetime due to component aging. Not familiar enough with non-PV solar facilities to know about component wear, though they're operating on a principal similar to molten salt reactors. So I'd guess their maintenance costs could be comparable (note I said COMPARABLE, not IDENTICAL, meaning one could be used to form an educated guess about the other).

      1: Think Wind and Solar projects aren't being subsidized, you're nuts.

      2: Sure, a solar plant might be cheaper, initially. But, output, over time will be lower than if you'd dedicated the land to a nuclear facility. Wind also has to deal with wear and tear. Also, the CLEANUP COSTS of a wind facility, in most cases, are actually pushed by the power company back on the land owner. So, you have an even gross of windmills on your land. When the facility eventually EOL's, how much does it cost to remove 144-ish thick concrete pads?

      Additionally, costs can be brought down through mass production means. Right now, pretty much every reactor is a "one off" or a "kitbash" (a standard desgin that's been modified in situ)

      3: Education costs? You mean teach people that nuclear != Bombs? Or you mean staff training? You basically have some form of staff training for any power generation system out there (if you think that large scale solar and wind don't have some fairly steep training, you haven't been paying attention).

      4: All power facilities in this day and age have security costs and issues. And, if we move to Thorium MSRs, we remove much of the threat of someone trying to steal fissionable material or blow a reactor.

      5: Decomissioning costs. Part of that is the fact that currently active reactors are giant Rube Goldberg nightmares with designs from the 70's based on tech from the 50's. Modern reactors are orders of magnitude simpler and built with the entire power generation lifecycle in mind.

      6: Endless waste storage. One of the beauties of MSRs. What little waste actually needs to be stored only needs to be stored for a couple hundred years. Not 10,000. Moreover, most of that radiologic fuel is only a step up from inert. Also, let's talk about all the waste produced manufacturing solar and wind facilities? You know, the costs being paid by the Chinese people because its government currently doesn't give a shit about. On top of that, were reprocessing of nuclear fuel NOT, stupidly, prohibited, much of what is currently sitting in parking lots and locked rooms could be used AGAIN. Reducing the amount of overall waste, and ensuring that the remainders, though quite "hot" (radiologically speaking) would be extremely short-lived. Additionally, some of it can be used in a constant cycle between MSR style reactors and more traditional uranium-based boiling water reactors.

      Basically, nuclear, done right could be a massive boon to our power industry.
      Done wrong, yeah, it's a cluster fuck.

      But renewables simply are NOT going to get us there.

      Hell, the biggest obstacle, overall, is the shitty, all-but-nonexistent state of the national power grid.
      A better power distribution system on a national level WOULD allow for better, faster adoption of renewables. As renewable power could be generated in bulk in places where such things make complete sense, and the power could be distributed to places where installing renewable power would never, ever pay back even its initial costs.

      Monster wind farms in Texas, crazy amounts of solar out in the southwest region. Then sell in places like Montana, Idaho, Michigan, etc.

      Advances in power storage are going to be needed too. Because we can't afford to simply pump water uphill everyplace that needs to store power. This would help reduce the bursty nature of such renewable systems. And I'm sorry, natural gas isn't the answer (there's still CO2 produced there!)

      Even then, we still need a known-steady form of baseline power.

      If we're decarbonizing, it's basically nuclear or nothing.

      --


      Chas - The one, the only.
      THANK GOD!!!
    17. Re:Offshore wind by Anonymous Coward · · Score: 0

      http://www.wsj.com/articles/nuclear-shutdowns-leave-belgium-looking-for-power-1408632643

    18. Re: Offshore wind by Anonymous Coward · · Score: 0

      Wind turbines and solar distribute the power (sic). The nuke energy centralizes power, again recaptures. Let's evolve not revolve.

    19. Re:Offshore wind by mvdwege · · Score: 1

      Come back when thorium reactors are more than a pie in the sky dream.

      --
      "I know I will be modded down for this": where's the option '-1, Asking for it'?
    20. Re:Offshore wind by Maxo-Texas · · Score: 1

      I'm all for building one (india is working on one) .. one! to see if they can be made safe and commercially viable. But, it's not nearly as safe as enthusiasts claim. And because it's not safe, so far it's too expensive to be commercially viable. And while it consumes some radioactive waste, it produces new highly radioactive waste with much longer half lives which must be geologically sequestered for longer than humans have existed as a species.

      http://www.theguardian.com/env...

      Peter Karamoskos,
      'Without exception, [thorium reactors] have never been commercially viable, nor do any of the intended new designs even remotely seem to be viable. Like all nuclear power production they rely on extensive taxpayer subsidies; the only difference is that with thorium and other breeder reactors these are of an order of magnitude greater, which is why no government has ever continued their funding.'

      http://www.nnl.co.uk/assets/_f...
      A 2010 National Nuclear Laboratory (NNL) report concluded the thorium fuel cycle 'does not currently have a role to play in the UK context [and] is likely to have only a limited role internationally for some years ahead' â" in short, it concluded, the claims for thorium were 'overstated'.

      Thorium cannot in itself power a reactor; unlike natural uranium, it does not contain enough fissile material to initiate a nuclear chain reaction. As a result it must first be bombarded with neutrons to produce the highly radioactive isotope uranium-233 â" 'so these are really U-233 reactors,' says Karamoskos.

      This isotope is more hazardous than the U-235 used in conventional reactors, he adds, because it produces U-232 as a side effect (half life: 160,000 years), on top of familiar fission by-products such as technetium-99 (half life: up to 300,000 years) and iodine-129 (half life: 15.7 million years).Add in actinides such as protactinium-231 (half life: 33,000 years) and it soon becomes apparent that thorium's superficial cleanliness will still depend on digging some pretty deep holes to bury the highly radioactive waste.

      More here:
      http://cleantechnica.com/2012/...

      Proponents claim that thorium fuel significantly reduces the volume, weight, and long-term radiotoxicity of spent fuel. Using thorium in a nuclear reactor creates radioactive waste that proponents claim would only have to be isolated from the environment for 500 years, as opposed to the irradiated uranium-only fuel that remains dangerous for hundreds of thousands of years. This claim is wrong. The fission of thorium creates long-lived fission products like technetium-99 (half-life over 200,000 years). While the mix of fission products is somewhat different than with uranium fuel, the same range of fission products is created. With or without reprocessing, these fission products have to be disposed of in a geologic repository.

      If the spent fuel is not reprocessed, thorium-232 is very-long lived (half-life:14 billion years) and its decay products will build up over time in the spent fuel. This will make the spent fuel quite radiotoxic, in addition to all the fission products in it. It should also be noted that inhalation of a unit of radioactivity of thorium-232 or thorium-228 (which is also present as a decay product of thorium-232) produces a far higher dose, especially to certain organs, than the inhalation of uranium containing the same amount of radioactivity. For instance, the bone surface dose from breathing an amount (mass) of insoluble thorium is about 200 times that of breathing the same mass of uranium.

      Research and development of thorium fuel has been undertaken in Germany, India, Japan, Russia, the UK, and the U.S. for more than half a century.

      --
      She was like chocolate when she drank... semi-sweet at first and then increasingly bitter.
    21. Re: Offshore wind by Anonymous Coward · · Score: 0

      Nice example, not.

      The Belgian reactors are known to be badly maintained and have been sabotaged by environmentalists as well.

    22. Re:Offshore wind by Dan541 · · Score: 1

      The much larger difficulty for nuclear is its waste,

      We already solved that issue. Gen3 produces almost nothing to the point where we have already produced most of the waste that we will ever see.

      Not to mention that what environmentalists call "waste" is actually reusable fuel.

      --
      An SQL query goes to a bar, walks up to a table and asks, "Mind if I join you?"
    23. Re:Offshore wind by AmiMoJo · · Score: 1

      A few points.

      1. You can't directly compare nuclear and wind/solar land use, because with renewables, especially wind, the land can be simultaneously used for other stuff. You can also build offshore wind, which doesn't use up any land at all.

      2. Why would a wind farm ever go EOL? Just replace the turbines with new ones when they wear out. You can probably re-use the tower. Same with solar farms, you can just replace than panels as needed. It's not like with nuclear or coal where contamination of the site and the need to do clean up means you have to abandon it after a while.

      3. Trying to compare the cost of cleaning up a wind farm site to cleaning up a nuclear site isn't even worth doing - they are several orders of magnitude apart.

      4. Nuclear reactors are mass produced already, but it doesn't reduce the cost much. Each plant has to take account of its unique geography and safety issues. While true for wind to some extent, the cost of doing so is many orders of magnitude less because the failure modes are far less severe.

      5. "Security issues" at a nuclear plant and at a wind farm are vastly different, and vastly more expensive for nuclear. Again, it's not even worth comparing.

      6. Decommissioning costs. These are still somewhat incalculable because the US doesn't have anywhere to store waste long term. Waste isn't just spent fuel, it's contaminated material from reactor casings, cooling systems etc. Newer reactors are somewhat better, but not enough to have a big impact on cost.

      7. Waste storage for hundreds of years instead of tens or hundreds of thousands. This is largely irrelevant when looking at cost. Either way, you need a place to store it, and it needs to be secure and geologically stable. A once in a millennia geological event is still too much of a risk if you have to store for 300 years before the consequences of a leak become acceptable.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    24. Re: Offshore wind by terjeber · · Score: 4, Insightful

      oak Ridge ran a functioning thorium reactor from 1965 to 1969. US shut down thorium research in 73, and has not done much since. If one could operate a thorium reactor 50 years ago, how is it a pipe dream?

    25. Re:Offshore wind by Anonymous Coward · · Score: 0

      http://www.ft.com/cms/s/0/4d5c670e-212f-11e4-b96e-00144feabdc0.html

      Shows how little you know.

      Care to show any examples of wind farms blowing up?

    26. Re:Offshore wind by Chas · · Score: 1

      1: Try growing stuff on the concrete pad below a wind turbine. And see what safety regulations say about dropping either of these in areas that are public spaces. And for PV solar, no, you REALLY can't use the land for much else. Because it's covered in panels.

      Also, let's look at land use vs output capacity.

      Oyster Creek in New Jersey is a 636 MW facility on 880 acres that annually puts about 5077 GWH of power into the surrounding grid.

      Then there's Topaz Solar Farm, largest PV solar facility in the US, built across 9 square miles (5760 acres). It has a nameplate capacity of 550 MW. In reality it only puts around 1100 GWH of power into the surrounding grid, making it a 125 MW facility on average

      2: Several facilities I know of in the midwest are spec'ed for a set lifetime and the land is leased only for a certain amount of time. And replacement of turbines and PV surface is neither trivial, nor inexpensive. Look at Oyster Creek (longest running nuclear facility in the US). It's been running since 1 December 1969. 45 years. A PV facility will have had to have been resurfaced 3-5 times in the same period. Just from panel decay.

      3: Again, you're looking at cleaning up old Gen1 and Gen2 facilities. Modern reactor designs are simpler, smaller, safer and in the end, far easier to clean up. The main problem is, we're still looking building 1970's Rube Goldberg monstrosities. A modern molten salt reactor is roughly the size of two tractor trailers, and will pump out about 500 MW once it's dialed in. And no need for an 800 acre facility just to have enough water on hand to cool the reactor. This basically means you can drop one just about any place you can drop a concrete pad.

      4: No, nuclear reactors are NOT mass produced already. You can purchase one of a number of designs commercially. But that's NOT the same thing as mass production.

      5: Okay, a wind facility can get by with less security, as you just want to make sure the general public doesn't go fiddling with the equipment. So you put up a gate, a bunch of NO TRESSPASSING signs and have a couple of rent-a-cops patrol to make sure nobody's hopping fences. Nuclear requires an actual security system, as the consequences of getting in and fiddling with a nuclear reactor are a bit nastier. Big flipping deal.

      6: Basically this argument is a repeat of #3.

      7: Actually, waste storage for a couple hundred years is easier (and cheaper) than trying to design and build something that would, hopefully, last tens or hundreds of thousands. So, if you have a facility that, in a couple hundred years, gets broken open in a quake, no biggie. Because the contents are inert.

      --


      Chas - The one, the only.
      THANK GOD!!!
    27. Re: Offshore wind by Anonymous Coward · · Score: 0

      That reactor never used thorium and it broke quickly. Also, hugely expensive to clean up. https://en.m.wikipedia.org/wik...

    28. Re:Offshore wind by Anonymous Coward · · Score: 0

      "If we're decarbonizing, it's basically nuclear or nothing."

      no, its not.

      and way to ignore the elephant in the room: waste storage.
      wind site cleanup? really? recycling of concrete and rebar isn't exactly groundbreaking technology.
      its easy, its common, and its cheap. hell, they pay you to come get it.

      cleanup of an EOL reactor however costs in the tens and hundreds of millions.

      verdict: nuke shill

    29. Re:Offshore wind by Chas · · Score: 1

      Again, modern reactors and fuel reprocessing will drastically cut waste. But I find that a lump of controllable nuclear waste is VASTLY preferable to blowing tons of carbon up a smokestack.

      And yes. Ripping up concrete pads isn't exactly rocket science. But it still can be costly.

      As I stated elsewhere. Sure, cleanup for an EOL reactor from the 70's is expensive as hell.

      Newer reactor designs are smaller, cleaner, more contained, and easier/cheaper to decommission and remove. Also, what waste IS produced is far more short-lived, meaning storage requirements are cheaper.

      Additionally, if reprocessing fuel wasn't banned (via graft in politics), nuclear waste would be far less of an issue even today.

      --


      Chas - The one, the only.
      THANK GOD!!!
    30. Re:Offshore wind by Anonymous Coward · · Score: 0

      This is nonsense. Don't have time to deconstruct the whole thing, but here is one example:

      Or you mean staff training? You basically have some form of staff training for any power generation system out there (if you think that large scale solar and wind don't have some fairly steep training, you haven't been paying attention).

      You obviously don't know much about the energy industry, or are being purposefully obtuse here. The amount of staff needed to run a nuclear plant vs. that needed for renewable resources is not even close. The complexity of the systems is also night and day, as is the requisite training.

      The Rocky Mountain Institute has a plan to drastically reduce carbon use by 2050 that doesn't rely on more nuclear. Whether that plan will work as outlined is debatable, but to a priori state only nuclear can do it is shortsighted.

    31. Re:Offshore wind by Crazy+Taco · · Score: 1

      Plus politicians like the late Teddy Kennedy heavily fight offshore wind turbines because they don't want the turbines cluttering up their views from their coastal mansions, such as the view they had in Hyannis Port at the Kennedy compound. But they have no problem cluttering up our beautiful views all across Iowa. Bunch of hypocrites, all the environmentalists and left wing politicians.

      Wind is one of the most expensive forms of energy out there. Way more so than nuclear. My relatives live in rural Iowa literally right next to a windfarm, and you also have the problem that some days when you look out there, not a single turbine is moving. Yep, when the wind doesn't blow, do we just turn everything off? That's another good reason to go nuclear... you need something that works all the time. Wind and solar are no replacement for fossil fuels because they don't work at all times, but nuclear could be.

      --
      Beware of bugs in the above code; I have only proved it correct, not tried it.
    32. Re:Offshore wind by Crazy+Taco · · Score: 1

      Lol, I'm from Iowa, and wind farms kill a LOT more creatures than nuclear generally does. They are doing way more to wipe out endagered species of eagles than poachers could ever do. Plus, even though they may not blow up, they shut down all the time when the wind doesn't blow. They are a ridiculous source of energy. If you want your eagles to live and don't want everything electrical in your city to shut down every time the wind stops, you'd better find something else.

      But like most environmentalists, it's probably better for you to make yourself "feel green" by supporting wind than actually pick something useful or address the massive killings of flying creatures, right?

      --
      Beware of bugs in the above code; I have only proved it correct, not tried it.
    33. Re: Offshore wind by Anonymous Coward · · Score: 0

      I cannot believe we are still talking about storing nuclear waste. Hello people!!! Am I talking to a brick wall??? I have now repeated this numerous times on slashdot and nobody listens.

      ***ElEcTrOmAgNeTiC MaSs DrIvEr***

      Shoot the damn waste into space. Done. No more problems with waste. Why are we still talking about this??? It is either nuclear waste or nothing. You want to talk about cost??? Cost is inversely porportional to energy production. We can invent new technologies with more energy. There is no debate any more. Nuclear is our only option. Now, shut up, get off your asses and do it.

    34. Re:Offshore wind by Anonymous Coward · · Score: 0

      And far less than farmers do.

      Who do less killing of raptors than windows do.

      Cars fitting somewhere between the two.

      And most killers of birds are cats. Kill all cats.

      PS Why this sudden whooshing of goalposts to a completely different stadium???

    35. Re:Offshore wind by Anonymous Coward · · Score: 0

      1. The concrete pad is less than 1% of the land taken up by the wind turbine's placement footprint. That indicates that the land use density is two or even three orders of magnitude higher than you claim.

      5. Its a big fucking deal to secure a nuke site. That's "the flipping big deal".

      7. The contents won't be inert and is irrelevant because it relies on a huge begged question: that the waste is stuff only needing storage for a couple hundred years. This is not the case at the moment, you need to prove that his will change.

    36. Re:Offshore wind by cwsumner · · Score: 1

      Many of the alternative suggestions have not been studied much. They may have problems just as bad as CO2.

      The inland wind farms are killing migrating birds and might be influencing the ecosystem.

      The offshore windfarms might influence the sea ecosystem, but worse might be wind change's impact on sand flow and dune formation. It could cause shorelines to wash away and collapse buildings.

      I believe we can make them work. But beware of assuming no data is good news.

    37. Re:Offshore wind by cwsumner · · Score: 1

      Modern nuclear plants can be much cheaper and safer than the old ones the data comes from. Some of the new small systems are the size of a truck "container" box, and can be brought out on a semi-truck.

      Assume that the cost will be less than the oppoonents say, but more than the cheapest sellers say. 8-)

      Also assume that the long-term cost of new technologies will be more than anyone thinks, but still workable at least some places.

      Been there, seen that...

    38. Re: Offshore wind by Chas · · Score: 1

      Yes. Because rockets never crash and splash their contents over miles and miles of area.

      Shooting it into space via rockets is DUMB. And at the current $10,000 per pound, prohibitively expensive. Currently, there's about 75 KILOTONS of spent nuclear fuel in the US alone.

      So 165,347,000 pounds * 10,000 = $1,653,470,000,000

      So, 1.6 TRILLION dollars for a dumb, risky, dangerous method of possible waste disposal.

      A better plan would be to reprocess fuel until it cooks down into very short-lived isotopes, then store it for a few years/decades till it goes inert.

      --


      Chas - The one, the only.
      THANK GOD!!!
    39. Re:Offshore wind by Chas · · Score: 1
      --


      Chas - The one, the only.
      THANK GOD!!!
    40. Re:Offshore wind by rrohbeck · · Score: 1

      The ones on the drawing board that nobody has built yet?

    41. Re:Offshore wind by cwsumner · · Score: 1

      The ones on the drawing board that nobody has built yet?

      Some have been built, but most not
      These are not things that you buy off of the shelf, though. Every single one is a custom design, just like other large plants.

      That would be different if we start using the small "on sight" reactors that can be carried by a truck or two. But I am not sure any of those are in use yet.

    42. Re: Offshore wind by Anonymous Coward · · Score: 0

      One word: pellets. No rockets needed. Done. No more problems with waste. It can be built for well under $10 billion, and it would solve all of our future power problems for centuries to come (including the existing nuclear waste problem).

    43. Re: Offshore wind by WindBourne · · Score: 1

      Actually, look up ft. St vrain nuclear reactor. It was thorium and was great. Sadly, GA screwed up with their he system.

      --
      I prefer the "u" in honour as it seems to be missing these days.
    44. Re: Offshore wind by Anonymous Coward · · Score: 0

      1. The concrete pad is less than 1% of the land taken up by the wind turbine's placement footprint. That indicates that the land use density is two or even three orders of magnitude higher than you claim.

      This is not correct. The area taken up by a wind farm includes the area between the turbines. It all becomes wasted land. There is very little you can build on it or do with it with dead birds dropping out of the sky and the need to prevent wind obstructions.

      5. Its a big fucking deal to secure a nuke site. That's "the flipping big deal".

      It is not that big a deal. It can be done. And once it is done its done. A large portion of it has to do with disposal, but with an electromagnetic mass driver you do not have that problem.

      7. The contents won't be inert and is irrelevant because it relies on a huge begged question: that the waste is stuff only needing storage for a couple hundred years. This is not the case at the moment, you need to prove that his will change.

      Again, electromagnetic mass drivers ensure this will be the case not in 200 years, but in 10 years.

  31. Try several others seriously first by presidenteloco · · Score: 0

    Let's first fully exploit:
    - Solar, wind, wave, ocean-current, and deep geothermal, supplemented with
        - large-scale grid-storage (not rocket-science, just some capital investment)
        - transcontinental high-voltage DC transmission lines to move power across weather-systems, ground-temperature zones, and daylight timezones.

    And let's invest 50x more funds to speed up fusion reactor research,

    Then and only then let's invest in the safest new nuclear technologies if needed, given the known high-impact risks including nuclear weapons proliferation.

    --

    Where are we going and why are we in a handbasket?
  32. Re:Only solution to climate change is a lower stan by khallow · · Score: 1

    Barring breakthroughs in fusion or another new energy source, the only solution to climate change is that 1st world countries are going to have to reduce their standard of living. Ultimately it will happen one way or the other.

    Unless, of course, it doesn't happen one way or another. The problem with this sort of thinking, is that you completely ignore technology or population reduction. Most of what we want doesn't require emission of CO2 or exponential population growth. Technology is well on its way to disentangling standard of living from a reliance on fossil fuels.

    And one of the obvious things missed here is that a higher standard of living and wealth translates into negative population rates. By ruling out higher standards of living, you are creating a permanent climate problem of continual human exponential population growth followed by environmentally catastrophic die-offs.

  33. About that cost problem by Applehu+Akbar · · Score: 5, Insightful

    I have always suspected that the high upfront cost of new reactors is primarily caused by the Greens' legal delay strategy. Stretch the construction timetable out far enough, and bonding cost will eventually eat up any conceivable budget. Look to China to see what can be done where Greens have no input to the process. According to Reuters, China is building eight reactors of the standard AP-1000 design for $24 billion. In the US, we are close to spending about that much for just one new plant.

    And yes, the China program went through the same post-Fukushima safety check cycle as in Japan. Like Japan, they chose to proceed.

    1. Re:About that cost problem by mdsolar · · Score: 1

      Count on China not to remake our misakes #TMI

    2. Re:About that cost problem by Anonymous Coward · · Score: 0

      What, you mean that "accident" at TMI that didn't kill anybody?

    3. Re:About that cost problem by Luthair · · Score: 1

      In fairness though, Chinese labour costs even for skilled labour are still significantly lower than in the west.

    4. Re:About that cost problem by Rakarra · · Score: 1

      Oh yeah, what a disaster TMI was. *eyeroll*

    5. Re:About that cost problem by cwsumner · · Score: 1

      Count on China not to remake our misakes #TMI

      Stealing other people's designs gives one that advantage. Just look at Microsoft and other companies. 8-)

  34. Rate of fusion research by mdsolar · · Score: 1

    The rate of fusion research was set when we figured out we'd run out of uranium and coal around 2100. That was back in the 1970s. The rate is pretty much fixed because the work force has too have PhDs to do the work and you have to have PhD advisors to get more PhDs. Big bottleneck. There are some nonstandard approaches, but the big programs can't be accelerated much.

    1. Re:Rate of fusion research by rubycodez · · Score: 1

      What nonsense, we have centuries of supply of coal (sadly) and more importantly we have centuries of fission fuel (spent fuel plus thorium reserves) There is no such 70 year limit to even uranium reactors because of the gold mine of spent fuel.

    2. Re:Rate of fusion research by mdsolar · · Score: 1

      You seem confused about the meaning of the word 'spent.'

    3. Re:Rate of fusion research by Anonymous Coward · · Score: 0

      Spent fuel coming out of a 1st or 2nd generation reactor still has 6/7th of its fissile material left in it and makes excellent fuel to burn in a 4th generation reactor.

    4. Re:Rate of fusion research by angel'o'sphere · · Score: 1

      The spent fuel is no gold mine as half of the fuel in it is ... gone. Hence the name: 'spent'.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    5. Re:Rate of fusion research by mdsolar · · Score: 1

      Which are more expensive and so won't be built.

    6. Re:Rate of fusion research by Rockoon · · Score: 1

      You seem confused about the meaning of the word 'spent.'

      You have been corrected on this at least a dozen times over the years, but here today you are again repeatedly using this IGNORANT BULLSHIT.

      We can only conclude at this point that mdsolar cares about everything but the facts.

      We dont have time for you any longer. You are worthless.

      --
      "His name was James Damore."
    7. Re:Rate of fusion research by Anonymous Coward · · Score: 0

      Spent fuel is the epitome of misnomers. Fuel utilization in LWRs is about to 1%, and the rest is perfectly usable as fuel for advanced reactors. Discarding such an enormous pre-mined energy resource would be foolish beyond compare.

    8. Re:Rate of fusion research by Anonymous Coward · · Score: 0

      They will be built in China and elsewhere where mdsolar and cohorts are unable ratchet up prices through perpetual litigation and FUD campaigns. Where energy choices are made based on actual cost, rather than in a heavily distorted market with obscene subsidies for renewables. (Though, it may be said that China's renewables are subsidized by ignorant fools in the west...)

    9. Re:Rate of fusion research by friedmud · · Score: 1

      You are correct that "used" fuel is mostly made up of Uranium that is an energy resource.

      The issue is that it's co-mingled with a bunch of nasty stuff. Stuff that generates heat and radioactivity while it decays (which makes handling the used fuel difficult and expensive for reprocessing) and stuff that is a neutron "poison" (meaning it soaks up neutrons, lowering the neutron economy of the fuel).

      We have the technology to separate out the good stuff from the bad (France does it in fact) but it is very expensive. At current Uranium prices it's uneconomical - France does it because it believes "it's the right thing to do" (TM). However, in the future we could come up with new reprocessing technology that makes it cheaper (many scientists are working on that) _or_ the price of Uranium could go up to where reprocessing would be economical (although, it may just price nuclear out of the market completely).

      One interesting thing: The (failed) Yucca Mountain fuel repository was explicitly designed to allow for retrieval of used fuel. Fuel was to sit on moveable platforms on "train tracks" that would allow both simple placement _and_ retrieval at a later date. This was a "just in case" type deal... at the advent of simplified reprocessing Yucca Mountain would have just been "hanging out" with tons of good stuff that's easily retrievable. All of the other long-term geological repository solutions (like salt-mines and bore-holes) don't have this nice property ;-)

    10. Re:Rate of fusion research by MrKaos · · Score: 1

      Which are more expensive and so won't be built.

      The scenario is more interesting than you might of had time to look into. Thank you again for a great discussion.

      --
      My ism, it's full of beliefs.
    11. Re:Rate of fusion research by MrKaos · · Score: 1

      The spent fuel is no gold mine as half of the fuel in it is ... gone. Hence the name: 'spent'.

      The amount of fuel consumed by the reactor is referred to as the burn-up rate. The burn-up rate of most of these reactors are only about 0.3% so they are not very efficient. From my understanding the fuel rods have most of the energy density in them that they started with.

      Energy density is often cited as a positive point of nuclear power, at issue though is our ability to access that energy density with the technology we have and what I've learned about the reactors we use is that they aren't very good at it.

      Which is why proponents of Nuclear power like to talk about Capacity Factor because it deflects the argument away from discussing things like Availability, Utilization and Efficiency.

      --
      My ism, it's full of beliefs.
    12. Re:Rate of fusion research by angel'o'sphere · · Score: 1

      Well,

      a typical uranium based reactor contains 5%-6% fissionable uranium and the rest of 94% is non fissionable. When half of those '6%' are fissioned, we have 3% fissionable, 94% non fission able and 3% decay products. If we only remove the decay products we have a 3% smaller block of fuel, which can not sustain fission as the remaining '3%' fuel is not enough. So you either have to find 100% pure fissionable uranium and add enough from that to our "97%" big remaining block, or you have to remove 47% of the non fissionable uranium to get a block of 50% of the original size, but with again 6% relative amount of fissionable uranium. Hence: 50% of the total mass of the spent fuel has to be "deposited" somewhere.

      The burn-up rate of most of these reactors are only about 0.3% so they are not very efficient. From my understanding the fuel rods have most of the energy density in them that they started with.
      The total burn up rate, from start till the rods get changed, should be around 3%, not 0.3%
      Yes, and no, as the majourity of the fuel can not be burned in an ordinary reactor anyway, but half of the fissionable fuel is burned, it is likely a point of view.

      Energy density is often cited as a positive point of nuclear power
      Yeah, but it is pretty meaningless. Consider you have one gram of uranium that could power your car 100 times around the globe ... however: we have no reactor that can extract that energy from a mere single gram of uranium.

      Capacity Factor because it deflects the argument away from discussing things like Availability, Utilization and Efficiency. Yeah, and it never has the CFs right (except for solar, perhaps :D )

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    13. Re:Rate of fusion research by MrKaos · · Score: 1

      Well,

      a typical uranium based reactor contains 5%-6% fissionable uranium and the rest of 94% is non fissionable.

      You're right, thanks for the info.

      The total burn up rate, from start till the rods get changed, should be around 3%, not 0.3% Yes, and no, as the majourity of the fuel can not be burned in an ordinary reactor anyway, but half of the fissionable fuel is burned, it is likely a point of view.

      Indeed, we have quite a similar view. My understanding of it was that the density of the coolant and that the fuel rods would be too radioactive when they are extracted are factors that determine the burn-up rate. I'm not sure that the concern is so much about the radioactivity or the delay it imposes on refuelling.

      Consider you have one gram of uranium that could power your car 100 times around the globe ... however: we have no reactor that can extract that energy from a mere single gram of uranium.

      Exactly, and still no place to put it when it is used. They scream "NIMBY" but it doesn't occur to them that the next generation has to clean up their toxic mess just so they can waste electricity.

      Yeah, and it never has the CFs right (except for solar, perhaps :D )

      I think solar and wind have the most promise for technological development and I predict that as these nuclear reactors go offline the surrounding areas will be littered with wind and solar generation to keep the cooling pools operational for many many decades and roughly 400 nuclear reactors to very carefully disassemble.

      I've gotta say I'm amazed at the energy you have to burn these fanbois. I used to do it all the time, but I find their stupidity so tedious. I spent a good 20 years studying this huge industry and I'm fairly convinced that it will collapse under it's own weight. My only concern is a geological stable spent fuel facilities will be built in the respective countries so that they can be stored safely.

      It's good speaking to someone with a clue angel'o'sphere.

      --
      My ism, it's full of beliefs.
    14. Re:Rate of fusion research by angel'o'sphere · · Score: 1

      Thanx for the thumbs up.
      I'm not really fighting pro wind, pro solar anti nuclear or whatever.
      It simply annoys be beyond believe that so many people can not add one and one together. So much bullshit here is just reiterating of memes people have picked up somewhere.

      Best example is the 'storage' myth or the 'each renewable needs a conventional back up plant' myth.
      a) If I have 100 conventional plants, demand drops, what do we do? We power down a selected set of plants.
      b) Now we have 70 conventional plants and 30 renewables. Suddenly the demand drops, what do we do? Obviously we panic! Because: we have no storage! Conclusion: going for 30% renewables or more, is impossible unless the 'storage problem' is solved.

      The pragmatic solution obviously would be the same as in a) ... power down some plants.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  35. Impossible? by laughingskeptic · · Score: 0

    Was it also impossible for the US to produce 124,000 warships during WWII? http://www.nationalww2museum.o...

    1. Re:Impossible? by mdsolar · · Score: 1

      Impossible to build that many nuclear ships.

    2. Re:Impossible? by rubycodez · · Score: 1

      Don't need that many nuclear ships; the world does have 140 of them in operation though. would we be better off using fluoride salt reactors to burn spent fuel instead of the sulphor and co2 belching cargo container ships? I think so

    3. Re:Impossible? by fnj · · Score: 1

      Was it also impossible for the US to produce 124,000 warships during WWII?

      An instant's thought shows that a figure of 124,000 warships (a ship is 1000+ tons) is insane. The US Navy peak strength in 1945 was 6768 ships, so in your fantasy we must have lost 117,232 ships. Obviously this did not happen, or our entire manpower resources would have been exhausted.

      That is the figure for ALL "ships", not just warships. And it falsely includes bullshit small craft like 82,000 Higgins landing craft as "ships". Over 5000 more were merchant ships. The true figure for production of actual ships for the US Navy in WW2 is 6771

    4. Re:Impossible? by angel'o'sphere · · Score: 1

      May it be that you mix up something that is rather small, like a plan, with something that is quite huge, like a ship?

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    5. Re:Impossible? by Anonymous Coward · · Score: 0

      You sound like a man who went to war against the United States and lost.

  36. proof plz. by Anonymous Coward · · Score: 1

    What science is "science settled" said about? CO2 **IS** a GHG. Settled. We ARE producing it. Settled. What do you think you are referring to (and where is this proof that it happens) when you complain about that?

    We *HAVE* an agreement. Just like we have an agreement that slavery is bad, murder is bad, theft is bad, and so on. What on earth are you referring to when you complain about that?

    And what the fuck is all this BS about "sophists"?

    When the petrol company demands payment, are they these sophists demanding money????

  37. Renewables first. by tchdab1 · · Score: 1, Insightful

    Until we make a concerted national effort to maximize renewables throughout the grid and the country, any new nuclear should remain on the design table where it belongs. Nuclear will always be a neutron source and always result in a large amount of very toxic and persistent byproducts, and must be a last resort, always. Don't even consider a new nuclear reactor until sun, wind, water, tides, and even fart energy has been harvested to the max, or else you're just a mouthpiece for an industry looking to grift profits on the back of a government and citizenry left to clean up your mess.

    1. Re:Renewables first. by Anonymous Coward · · Score: 0

      Until we make a concerted national effort to maximize renewables throughout the grid and the country, any new nuclear should remain on the design table where it belongs. Nuclear will always be a neutron source and always result in a large amount of very toxic and persistent byproducts, and must be a last resort, always. Don't even consider a new nuclear reactor until sun, wind, water, tides, and even fart energy has been harvested to the max, or else you're just a mouthpiece for an industry looking to grift profits on the back of a government and citizenry left to clean up your mess.

      How about also covering all cities in a heavy lead cover so that the cosmic radiation doesn't damage us... and also make a similar plate under the city.

      Nuclear power and what do with the waste is primarily a political problem, not really a major technical one. I say major since you do still need to make sure you don't dump the waste in a black plastic bag on the side of the highway.

      While at it, how about we destroy all bacteria and viruses on earth?

    2. Re:Renewables first. by Anonymous Coward · · Score: 0

      What Nuclear Industry? We have not built a plant in decades.

      In 50 years of operation in the United States there has been 0 deaths due to radiation exposure from Nuclear Power. There have been 0 deaths from Fukushima. The only deaths and sickness were from Chernobyl, which was built as a warhead factory. According to the World Heath Organization the total deaths, including cancer deaths, is less than 60. Statistically Nuclear is safer than every other power source.

      If you are worried about waste you should know solar produces very toxic byproducts as photovoltaic-cells produce a great amount of dangerous waste. Per volume it is greater than nuclear per kilowatt-hour. As for nuclear the waste has been overstated, and if you let us build next generation reactors waste will no longer be a problem.

      Renewable energy still a positive and we should continue to build them, but they are intermittent( meaning the only work some of the time). They cannot provide reliable base power to the grid. The only options are coal, gas and oil or nuclear. The anti-nuclear movement loves coal, gas and oil.

      The realty is that anti-nuclear people are really oil industry stooges. You have an emotional connection to oil industry propaganda from the 1970's. You should ask yourself why your values align with those of the Koch brothers, Saudi Arabia, and the rest of the coal, oil and gas industries.

  38. Wow! Safety Records of Operating Plants by mdsolar · · Score: 1

    Cute! Non-operating plants like Fukushima and Chernobyl have good safety records too....

    1. Re:Wow! Safety Records of Operating Plants by khallow · · Score: 1

      This is your second, low content rebuttal to my posts. Even with Fukushima and Chernobyl and Three Mile Island and a host of other accidents, even with the considerable number of deaths from uranium mining, nuclear power remains safer than the other sources of power I mentioned. Safety is not the way you argue against nuclear power.

    2. Re:Wow! Safety Records of Operating Plants by Anonymous Coward · · Score: 0

      So how many people died in those disaster? Now compare that to the number of people that have died due to accidents or fire or what not in conventional plants. I bet even if you account for Chernobyl, there is a far greater percentage of people dying in conventional electron production. There is something pathologically wrong with the liberal mindset that if something can not be totally 100% safe it is best not to do it. Life is not safe. Everyone born is going to die. Does that mean we should not have kids. No they are our future. Nuclear could have been our future... However the liberal culture of death and worry crept in. Now the USA doesn't do shit except complain white privilege.

    3. Re:Wow! Safety Records of Operating Plants by Anonymous Coward · · Score: 0

      Expect 30 to 60 thousand excess cancer deaths. http://www.chernobylreport.org...

  39. If you are interested in the long run by mdsolar · · Score: 2

    You might like this http://slashdot.org/journal/25...

  40. It's economics, stupid by Idou · · Score: 1

    In all these debates I'm always amazed how the simple "big picture" of the economics involved is disregarded. . .

    The nature of some technologies result in centralized and monopolistic markets. In contrast, some technologies are conducive to decentralized and competitive markets. In the end, commoditization wins through rapid advancements and by pricing everything else out of the market. For instance, look at all the centralized land phone lines NOT being installed in Africa, yet phone usage is booming.

    I know /.ers likes to fantasize a world not run by businessmen, and that is fine as long you realize that is just a fantasy. The current world is driven by business and the economic environment that shapes business decisions (though, this may not apply to the basement dwellers that frequent this site . . .).

    --
    Sdelat' Ameriku velikoy Snova!
    1. Re:It's economics, stupid by Maxo-Texas · · Score: 1

      Along these lines, local solar in africa combined with fans and LED provides a much bigger bang for buck (and is less of a target) than any large centralized distribution plant with wires strung all over the country.

      --
      She was like chocolate when she drank... semi-sweet at first and then increasingly bitter.
    2. Re:It's economics, stupid by Idou · · Score: 1

      Yes, another great example.

      In addition to cost effectiveness, decentralized technologies are having the opposite impact as the Resource Curse in Africa.

      Centralized systems lead to power and wealth concentrations which sabotage the economic development of the overall population. Decentralized systems result in more competition, lower costs, fairer wealth distribution, faster technological progress. . . basically the types of things you would want to inject into a region in great need of economic development.

      --
      Sdelat' Ameriku velikoy Snova!
  41. no partisan political stories, please by ooloorie · · Score: 2

    ThinkProgress is the political blog of the "Center for American Progress", a highly partisan political organization. Romm himself is also highly partisan, and the argument in his article is a political one, not a scientific one. In short, please keep this partisan political crap off Slashdot.

  42. I would gladly jump on the nuclear bandwagon by Opportunist · · Score: 4, Insightful

    But I first need one answer: What are we going to do with the waste?

    I am certainly NOT going to accept that companies build reactors, reap the profits and then miraculously go out of business when the reactors are no longer profitable and society gets the spent fuel dumped on its back. Anyone building a nuclear reactor must prove that he not only has a plan for how to get rid of the waste but also the monetary background to do so. That money could e.g. be parked in government bonds, these things tend to have a long run time, much like those reactors.

    And we can ensure that way that the companies will clean up after themselves when everything's said and done. Because that's the one problem we face today whenever one of those things go out of business: They are dumped upon the population and we're stuck with a rotting piece of radioactive trash that costs a fortune to get rid of.

    --
    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    1. Re:I would gladly jump on the nuclear bandwagon by psmoot · · Score: 1

      But I first need one answer: What are we going to do with the waste?

      Of course. My understanding is many of the new reactor designs either burn their own waste (travelling wave reactors), don't generate the "traditional" waste (thorium reactors), or have safer ways of dealing with it (pebble bed or on-site breeder reactors). I'm not a nuclear scientist but I guarantee any new designs will address the two technical stumbling blocks of fail-safe design and waste processing.

    2. Re:I would gladly jump on the nuclear bandwagon by Anonymous Coward · · Score: 0

      Most can be recycled into more fuel. All it take is a President with a spine to issue the executive order.

    3. Re:I would gladly jump on the nuclear bandwagon by Opportunist · · Score: 1

      Politicians don't have spines, they have voters. Tell them that you want something like that, since there is an industry that does, too, it should be very possible to get something going.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    4. Re:I would gladly jump on the nuclear bandwagon by Cyberax · · Score: 1

      That's _exactly_ how the current nuclear reactors work in the US! A part of the income of all nuclear reactors is dedicated to funding the long-term storage. And all of our current reactors have plans on file to deal with decommissioning which must also be fully funded when the reactor starts to operate.

    5. Re:I would gladly jump on the nuclear bandwagon by Anonymous Coward · · Score: 0

      throw it into a volcano. i'm sure it won't mind the extra heat.

    6. Re:I would gladly jump on the nuclear bandwagon by Anonymous Coward · · Score: 0

      Put the waste somewhere and don't let anyone near it...

    7. Re:I would gladly jump on the nuclear bandwagon by thegarbz · · Score: 1

      Waste is a political problem nothing more. The "waste" from one reactor becomes the fuel for a different reactor. The problem is that materials used for making bombs is an intermediate process in the next level of use of that "waste" so instead of doing something productive with it we store it instead. Once we've extracted all useful power using our current technology the resulting waste is dangerous for many decades, but certainly isn't the problem that the current waste is, oh and there's also significantly less of it.

    8. Re:I would gladly jump on the nuclear bandwagon by sciengin · · Score: 1

      Put it back from where it came from: Into empty uranium mines. Sure the nuclear waste radiates more than uranium ore, but on the other hand its half life is also significantly shorter.

    9. Re:I would gladly jump on the nuclear bandwagon by lars_stefan_axelsson · · Score: 1

      Waste is a political problem nothing more. The "waste" from one reactor becomes the fuel for a different reactor. The problem is that materials used for making bombs is an intermediate process in the next level of use of that "waste" so instead of doing something productive with it we store it instead.

      And while I understand the politics of the argument, and while I'm all for non-proliferation I don't understand it in the context of the US. It's not like you don't already have thousands upon thousands of warhead (albeit about an order of magnitude less than when you were at your peak), so exactly who would be worried about the US reprocessing its fuel? The size of the arsenal is kept under wraps by inspections and the like anyway, and reprocessing could be fairly centralised and kept under close scrutiny; those problems seen solvable.

      So, while there are plenty of nations that I'm happy aren't reprocessing fuel left, right and center, when it comes to the US that cat isn't just out of the bag, he's not even in the same county anymore.

      --
      Stefan Axelsson
    10. Re:I would gladly jump on the nuclear bandwagon by PPH · · Score: 1

      But I first need one answer: What are we going to do with the waste?

      Recycle it.

      Levy a fee for each pound of spent fuel produced. Have a government truck stop by, pick it up and haul it to a reprocessing facility in the middle of a high security military compound. Extract the isotopes useful for further power generation, suitably diluted and packaged to discourage weapons use. Reduce the weight and volume of the remaining waste. Glassify and bury it.

      My local government is completely enamored with the process of picking up my garbage, sorting it and recycling whatever can be. To the point that I can't even opt out of the garbage pickup process and haul my own stuff to the transfer station. In the aggregate, allowing every citizen to accumulate their own backyard garbage pile (or burn it) would be far more damaging to the environment than a few spent nuclear fuel pools. And more expensive to handle as well.

      --
      Have gnu, will travel.
    11. Re:I would gladly jump on the nuclear bandwagon by thegarbz · · Score: 1

      I couldn't agree more, and quite frankly given the amount of regulatory monitoring and even bloody social monitoring (Greenpeace followed a cargo train in Australia from the port to Lucas Heights to ensure that any reprocessed waste we received back from France didn't "end up in the wrong hands) I find it absurd that people are so bat shit scared of the intermediate products. Quite frankly I'm more scared about some of the other chemicals we cart across the country than some movie plot about terrorists intercepting a cargo of plutonium being chased by James Bond so they can end the world using some stolen soviet submarine.

    12. Re:I would gladly jump on the nuclear bandwagon by DarthVain · · Score: 1

      This is why I think all nuclear generation should be nationalized. Will it be more expensive? Sure, but at least it will be done right.

      In addition to the decommissioning issue you raised, the other is that of "insurance", or lack thereof. No one is willing to insure that sort of disaster. The public is always going to be the one on the hook for the cost. Do you really want someone running these things with no responsibility?

    13. Re:I would gladly jump on the nuclear bandwagon by ebvwfbw · · Score: 1

      Could recycle like the rest of the world does. The US not recycling dates back to one of the many stupid decisions Carter made when he was President. He felt that if the US didn't recycle the waste, nobody else in the world would and that would help stop materials from falling into the wrong hands. Of course this was a very egotistical view - as if the US can tell everyone else in the world with a brain what to do. It didn't fool them for even a minute. It did however fool a lot of the crazy anti-nukes in the US. Reagan tried to reverse the decision, however it never did get any traction.

      Recycle, let's process that stuff that's been sitting around for many decades. It's around 99.9% efficient I understand.

    14. Re:I would gladly jump on the nuclear bandwagon by Opportunist · · Score: 1

      The problem here is that you can have it accumulate. Worse, in some reactor types you can't really remove the spent fuel without shutting down the reactor, which means that a fuel change can only happen so often because starting/stopping such reactors takes a lot of time and money.

      What would keep such a company now from running the reactor as long as it's profitable and then go out of business? Of course after siphoning away profits. And strand you with a glowing piece of waste.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    15. Re:I would gladly jump on the nuclear bandwagon by PPH · · Score: 1

      What would keep such a company now from running the reactor as long as it's profitable and then go out of business?

      You have them post a bond for the reprocessing fee before taking delivery on the fresh fuel.

      --
      Have gnu, will travel.
  43. Solar panels made of sand by mdsolar · · Score: 0

    Solar panels are made of sand and are 200 times more energy dense than coal. You've made a mistake in your assumptions.

    1. Re:Solar panels made of sand by Anonymous Coward · · Score: 0

      Solar panels are made of sand

      Yes, nothing else whatsoever goes into a solar panel. Nothing but sand. Shit, go to the beach with a bucket, and you're set for power for lyfe, amirite?

      Shill.

    2. Re:Solar panels made of sand by Anonymous Coward · · Score: 0

      Sand and copper. It has already been discussed that there isn't enough copper supply to replace electrical production with solar. Let us not forget (or fail to realize in the first place) that solar needs to be paired with energy storage to actually replace electrical supply, which will require significant material inputs which will need to be mined.

    3. Re:Solar panels made of sand by mdsolar · · Score: 1, Informative

      http://renewableenergysolar.ne... they are made of sand. The walrus and the carpenter had a good cry about how abundant sand is.

    4. Re:Solar panels made of sand by Anonymous Coward · · Score: 0

      Uhh, no, they are not made of sand alone. They have several rare earth metals in them to make them work, but that's today's technology. If we spent the money of one reactor on research for renewables every year that would pretty much change in a decade or two, at most. To date, I don't think there's been much more than two nuclear reactors (about $13 billion) spent to date on renewable energy research, in the U.S. anyway. If that changed, a lot of other things change in this debate very quickly.

    5. Re:Solar panels made of sand by geoskd · · Score: 1

      Solar panels are made of sand

      That is like saying cars are made out of steel. It vastly oversimplifies things.

      The first photocells were made from silicon wafers, the same process as used by the semiconductor industry, but modern PV cells use a variety of other materials, to increase efficiency to acceptable levels, such as Gallium, Copper and Indium. These higher efficiency cells are what are referred to by anyone talking about the future of PV cells, because they are the ones that can meet the efficiency targets necessary to make solar cheap enough to be truly competitive. The problem is that these materials are only cheap because the quantities needed for production of todays volumes are easily within the availability of the materials. If you ramp up high efficiency PV cell production, you quickly discover that several of the materials needed will run severely short of supply before even a significant fraction of global power demand is met.

      While Solar will make a strong addition to the global power grid, it cannot, by itself, make more than a minority contribution.

      --
      I wish I had a good sig, but all the good ones are copyrighted
    6. Re:Solar panels made of sand by Anonymous Coward · · Score: 0

      That's a cute citation, but the semiconductor manufacturing process is anything but environmentally friendly. In addition to the "sand", you need dopants (to actually make the band-gap, which is probably over your head) which are usually extremely toxic metals.

    7. Re:Solar panels made of sand by mdsolar · · Score: 1

      Dopant is explained in the link. You should RTFA.

    8. Re:Solar panels made of sand by mdsolar · · Score: 1

      You seem to have misunderstood solar tech. Silicon does very well. http://www.solarplaza.com/chan...

    9. Re:Solar panels made of sand by Anonymous Coward · · Score: 0

      You mean their mention of boron, one of the least toxic dopants used, and their neglect to mention any other common dopants because that would interfere with the greenwashing?

      Yep, just sand... and a touch of rainbows and magic. *twinkle*

    10. Re:Solar panels made of sand by mdsolar · · Score: 1

      To the primative, technology will appear a magical indeed.

    11. Re:Solar panels made of sand by Anonymous Coward · · Score: 0

      A singular and magical solution to all of our energy needs, indeed. It would appear that way to the primitive, as you've pointed out.

      Your faith in it is almost religious.

    12. Re:Solar panels made of sand by Anonymous Coward · · Score: 0

      By the way, you're talking to somebody whose house is almost completely powered by PV panels (I fall short in the winter). I like solar. I just don't like greenwashing and simplistic thinking. Or shills.

      The prospect of being associated with people like you makes me want to downplay my involvement in the PV industry.

    13. Re:Solar panels made of sand by Boycott+BMG · · Score: 1

      Dopant is explained in the link. You should RTFA.

      Since the other guy isn't explaining how you are wrong, I will let you know that silicon transistors need both a p-type and n-type to work. The p-type is typically boron, and the n-type can be phosphorous or arsenic. The compound used to deposit the phosphorous (phosphine gas) is toxic. Arsenic is toxic.

    14. Re:Solar panels made of sand by thegarbz · · Score: 0

      So just sand. Oh and and a material isotope that needs to be mined, oxidized and then synthesized through a complicated and very dangerous process. Oh yes it's just "mixed in" after as well.

      Everything is simply sand when you gloss over all the nasty details.

    15. Re:Solar panels made of sand by mdsolar · · Score: 1

      Article mention it is done clean.

    16. Re:Solar panels made of sand by mdsolar · · Score: 1

      You realize computer chips are made in the same way don't you? It's safe.

    17. Re:Solar panels made of sand by Anonymous Coward · · Score: 0

      Very convenient that your cited source just glosses over the god awful acids and chemicals used in "printing circuitry on both sides of the cell".

    18. Re:Solar panels made of sand by MachineShedFred · · Score: 2

      The contrapositive of your question: Why are renewable proponents so vehemently opposed to anything but renewables? How about instead of living with the status quo (coal) we start building out *anything* that would get us off of effectively burning mountains and blowing it into the stratosphere?

      That means a good mix of wind, solar, geothermal, biomass, and yes, nuclear.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
    19. Re:Solar panels made of sand by Boycott+BMG · · Score: 1

      Article mention it is done clean.

      Since you don't have the knowledge to know when you are out of your depth, I will help you along. The article (really more like a brochure) you cited only covers the p side (they call it "positive potential electrical charge") and doesn't cover the n side of the p-n junction.
      http://www.pbs.org/wgbh/nova/solar/insi-nf.html This is a link where NOVA (the science guys) explain how solar cells work. Notice they mention boron and phosphorus. Phosphorus is typically deposited chemically, using CVD (chemical vapor disposition). I am not an expert in the field, but from what I have been told the phosphorus deposition is not clean.

      Furthermore, your link doesn't seem to acknowledge that making a reasonably pure silicon wafer for the solar panels requires forming silicon crystals. Cheap methods for doing that involve some nasty processes.

    20. Re:Solar panels made of sand by geoskd · · Score: 1

      ??? The best Silicon only options on that graph barely reach the worst of the Gallium based cells, and even then, they are theoretical designs that have monumental manufacturing costs due to the extreme materials handling requirements. What we need to make a solar breakthrough is silicon only cells that can break the 35% efficiency mark while being as cheap to make as the current commercial silicon only products (which run 25% at best).

      The other way to improve them would be to increase the durability of the cells. Silicon only cells loose about 15% of their capacity per decade. After 30 years, you're getting a little more than half the power output you were getting when they are brand new. Compare that to coal and oil powered plants where you still get close to 100% power output at the end of the plant lifespan. The only long term advantage that Solar has is that you don't have to keep buying fuel, but as long as you keep having to replace the cells every 20 years, its not terribly better than every other non-renewable energy source.

      As I said, the Gallium based cells will provide a meaningful contribution because they improve on the silicon variety in a number of important ways, but due to materials limitations, and lack of raw materials, solar will forever be a minority contributor to our global power grid. In 200 years, our power supply will most likely be around 10% solar, 5% wind, 5% hydroelectric, 20% geothermal, 10% coal / oil and 50% nuclear. In 400 years, it will likely be 90% nuclear because the energy consumption will have increased dramatically, but the supply of all but nuclear is fundamentally limited such that it will not be able to grow beyond a certain absolute maximum.

      --
      I wish I had a good sig, but all the good ones are copyrighted
    21. Re:Solar panels made of sand by mdsolar · · Score: 1

      It is clear you are not expert. Nor a reader.

    22. Re:Solar panels made of sand by mdsolar · · Score: 1

      You are reading multi-junction as gallium arsinide. Also, you are misinformed on the rate of degradation of solar cells. Perhaps you are getting numbers for space applications.

    23. Re:Solar panels made of sand by cwsumner · · Score: 1

      Dopants for semiconductors are used in very small quantities. Toxic materials can be used safely if people are careful.
      If people are -not- careful, then they can cause -anything- to be hazardous!

  44. Nuclear lacks lobbying by yes-but-no · · Score: 1

    For industry xyz to take off, you need laws/policies supporting xyz. To get the laws, you need the 1% to support. Nuclear is a technology which can benefit everyone in the long run (all physics principles, energy density, etc); but it doesn't benefit the 1% now. It only negatively affects them (like revenue loss to coal industry/ solar/ wind etc). So unless the industry is going to benefit the 1% and it's in a such way they reap the lions share of the profit, the industry is not going to take off. As we know, it's democracy only in the name.

    1. Re:Nuclear lacks lobbying by Luthair · · Score: 1

      IIRC from the movie Pandora's Promise its also been shown in the past that coal companies funded some of the FUD around nuclear.

  45. Hansen = right. Aricle = wrong. by Anonymous Coward · · Score: 0

    Cost of producing nuclear is cheaper per watt than alternate energy. In addition there are some pretty good arguments to be made nuclear, with its small physical footprint, is also friendlier to the environment. (despite its hazards).

    Nuclear got a bad reputation due to Chernobyl and Three Mile Island. All the eco-crazies were taken seriously in an over reaction. It never recovered from its bad rep. Now everything something goes wrong... same over reaction over and over again.

    However... uf we had stuck with nuclear in the 80s... that extra 30 years of funding research would likely have meant much safer and even more efficient reactors today's (and made the issue of Co2 much smaller) Doom sayers want us to repeat the same mistakes.

    It's not that we can't also peruse alternate energy like solar, wind, etc...... but without a strong future for nuclear power mankind will be hobbled (e.g. good luck colonizing mars and moons of outer planets without nuclear)

  46. Either Way by JimSadler · · Score: 1

    If we build a large number of reactors we certainly must have a much safer type than currently exist. Large numbers of reactors amplify the chances of a mishap. We also must seriously consider what will be required in the way of waste products and removal of reactors that age. I like solar and wind and tidal generation but we have seen nothing in regard to how strong a hurricane such units can survive. I'm in florida where hurricanes are a certainty.

    1. Re:Either Way by whit3 · · Score: 1

      If we build a large number of reactors we certainly must have a much safer type than currently exist.

      Half-truth. Probably most of the (dozens?) of designs now in use are safe. The only design that seems alarming to me, is the Chernobyl type (RBMK, or somesuch?). The Fukushima problem wasn't in the design, it was in the unprecedented earthquake followed by an unexpectedly large tsunami. The site was in the middle of a disaster that claimed tens of thousands of lives, after all: cleanup at Fukushima was a long news story, not a loss-of-life disaster.

      We also must seriously consider what will be required in the way of waste products and removal of reactors that age.

      That, too is a half-truth; in the US, 'serious consideration' means a not-in-my-backyard (NIMBY) debate, and we don't need that. We need a decision, but it's easier (and so far, safe) to just defer everything. The reprocessing of 'spent' fuel is a good idea. It doesn't happen in the US because of NIMBY arguments. When Jimmy Carter decided not to do it, some of the NIMBY noise, mercifully, abated. I have mixed feelings about that.

    2. Re:Either Way by cwsumner · · Score: 1

      If we build a large number of reactors we certainly must have a much safer type than currently exist. ...

      "Currently exist" means reactors from 30 years ago, or even longer. Several designs are available now that are very much safer.

  47. Biased reporting? by Anonymous Coward · · Score: 0

    With a handle of MDSOLAR can one believe a word from this self-appointed leader of the nob generation?

  48. Not true by Anonymous Coward · · Score: 0

    MGSi is made from 'high quality' quartz rock, not sand.

    MGSi is then processed into Solar Grade Si or Semiconductor Grade Si.

    All of these processes are energy intensive. You're melting rock, pulling Oxygen off of the silicon dioxide, and removing all of the things that aren't Si.

    Solar Panels have ZERO energy density. They're simply part of the machinery that captures energy from the big fusion reactor in the sky.

  49. Energy consumption is going to increase by Suomi-Poika · · Score: 1

    If the rest of the world will go to 1/3th of 1st world energy consumption we will need a lot of new power in near future. "Renewables" are not enough even if we focus everything on building them.

    I quote Dr. Ripudaman Malhotra @ TEAC7: (https://www.youtube.com/watch?v=CpXG3zyg3gk)

    If we want to replace one cubic mile of oil by 2050 we need:

    200 Three Gorges dam. One built quarterly. We have perhaps three (3) rivers left for such installations. So, no new big hydro. Small perhaps but I personally enjoy more of free flowing rivers than dam lakes.

    2500 900MW nuclear plants. One built every week. Completely possible, no shortage of fuel with fast neutron reactors where the remaining 97% of nuclear fuel gets used.

    7700 900MW consentrated solar parks 25% availability (10x size of Andasol CSP). 3 a week for next 50 years. This is possible but getting difficult.

    3 000 000 1.65MW windmills 35% availability. 1200 per week for next 50 years. This is where it starts getting hard. We need 50 million tonnes of steel/year (possible) and lots of rare earths (not possible) for generators, transmission lines and electronics and billions of tons concrete for offshore installations. All of them are big carbon emitters. Low power density creates need for large power networks, transmissions losses reduce the efficiency of such system. Still I say go for it where the wind is constant, like trade wind regions.

    4 200 000 000 (4.2 billion) solar roofs 2.2kw 20% availability. 250 000 new installations _every_ day till 2050. I am sorry, this is not possible. We don't have enough roofs at places where people can actually afford solar roofs and their lifetime, even if increased to 35 years, is not enough.

    So this is why we must build 4th gen Uranium-Thorium reactors with passive safety systems. Reactors which operate at 700-800C and produce process heat. Then we can decarbonize things like concrete production and recycle municipal waste/biomass to liquid fuels etc.

    These new plants are modular where every part except of the concrete can be swapped when it gets old or fails some way. Concrete is long lasting stuff. It is possible to get Colosseum like lifetimes for these installations, 2000 years easily. 4th gen reactors close the nuclear fuel cycle so the unusable radioactive byproducts are minimal and they have a short half life.

    What is worrying me is that the projected energy consumption is nine CMO (all energy forms converted to oil) by 2050. We are using 3.5CMO now. So basically we have to build everything non-fossil source we can. This is possible with nuclear because that is the one which actually makes money to finance the other not-so efficient energy sources.

    1. Re:Energy consumption is going to increase by m.dillon · · Score: 1

      The problem with projections is that they rarely predict how things will actually develop. What happens in reality is that society slowly recognizes that a problem is present. Often too slowly (and probably too late when it come to climate change), but never-the-less it eventually gets recognized, and society shifts and adjusts.

      Nobody seems to understand just how huge the energy economy is in the developed world, just to support our current life-style. The numbers you quoting, despite being probably wrong (very wrong most likely)... still, the numbers you are quoting are *nothing* compared to the energy infrastructure that drives the U.S. economy today. On a relative measure, if we can have what we have now, we can certainly achieve anything you've mentioned above.

      At some point in the last 10 years this whole 'thorium reactor' movement cropped up, and frankly its hard debunk the utter stupidity of the model because very few people talking about it are bonafide scientists who know what they are talking about. Me included, on this issue. But on the other-hand I'm probably one of the few people who actually knows how to use a geiger counter and has had conversations with scientists standing in front piles of lead shielding crap I wouldn't want to touch with my bare hands.

      When one of those guys tells me that thorium is a disaster due to its secondary byproducts, I believe him.

      -Matt

  50. Waste issue by jgotts · · Score: 1

    If you look back through the archives, you might be able to find a few of my longer and more detailed responses whenever the subject of nuclear energy arises. I'll restate my conclusions here.

    Current nuclear energy production techniques produce new waste products that did not exist before. These products are so deadly that touching them for a reasonable period of time will result in your painful death in a few days to a few months. These waste products are dangerous for timescales of hundreds of thousands of years, give or take one order of magnitude. I'll restrict my analysis to this so-called high-level radioactive waste, not low-level radioactive waste like contaminated equipment and clothing.

    The earliest written languages are around 5,000 years old, give or take a thousand years. Nobody except for a handful of people in the world can read those languages. Most humans can only read languages a few hundred years old at most. In the poorest regions of the world in 2016, half of the local population can read no language whatsoever, local or remote, ancient or modern, because they are illiterate.

    Regions of the globe that formerly had the leading civilizations can fall on hard times due to overly intensive agriculture, drought, earthquakes, other types of natural disasters, or any number of freak occurrences. North America, over thousands of years, could swap places with sub-Saharan Africa in terms of, most importantly, literacy, scientific and otherwise. There is no guarantee of forward technological progress. Simply look at the Roman Empire and the following Dark Ages. It took civilization until the 20th century to recover most of what was lost.

    Let's fast forward 25,000 years. Due to climate change, there is a population of mostly illiterate nomadic herders in North America. Quite by accident, they come across our 2016 state of the art nuclear waste containment facility. Over the years all of the security measures have been destroyed by natural disasters of one kind or another. Amazingly there are still legible signs posted in 100 of the most common languages from 2016 Earth. Since these herders can't read, the signs are quite useless. Even if the locals could read, the signs would take weeks for academics living thousands of miles away to decipher. Being curious and in need of building supplies, these individuals clean out the facility, emptying all high-level waste containers, hoping to find useful materials. Over the next few weeks the material spreads to other local tribes. The advanced civilizations of sub-Saharan Africa are unaware of this until after a few more weeks tens of thousands of people from the primitive tribes of North America start dying from radiation poisoning. All because some pretty ignorant people in 2016 thought that nuclear energy was completely safe.

    This is what nuclear energy produces: Ticking, deadly time bombs for future civilizations, with no guaranteed way to warn them of the danger.

    1. Re:Waste issue by Smiddi · · Score: 1

      Devils advocate: What if mankind has found a way to process this waste so its safe before 25,000 years?

    2. Re:Waste issue by david_thornley · · Score: 1

      What's going to be seriously radioactive after 25K years? Most of the dangerous stuff is going to decay before that. Radium has a half-life of about 1600 years, which means that if it were in the waste it there would be about 1/32K as much as when we started. With radioactive waste, the really dangerous stuff goes away in years or centuries. The stuff that is mostly undiminished after 25K years is not all that dangerous.

      If we lose some illiterate nomadic nerf herders 25K years in the future, I'm going to guess that isn't going to affect the future history of the world much.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
  51. Bad maths... by EdgePenguin · · Score: 1

    The author claims that the French rate of 3/year during the peak of their nuclear building program shows how ridiculous 115/year is; what that fails to account for is that France has 1% of the world population; so such a rate is fine.

  52. Huh? by Anonymous Coward · · Score: 0

    Did you respond to the wrong post? Your comments make no sense.

  53. dollar by Smiddi · · Score: 1

    The only logical and truly future proofing of power is a de-centralised power generation model (it doesn't matter if its, solar, wind, etc). But that would mean big power corporations would lose profits, AND that's the underlying problem that needs addressing first.

  54. "Without sacrificing safety" by Anonymous Coward · · Score: 0

    ... except that nuclear is always held to far, far higher safety standards than any other power source. I doubt solar or wind could match the lifecycle deaths or illnesses per kWh that nuclear is held to at even twice nuclear's price. But they're not asked to do so.

    Don't give me that Fukushima BS. Fukushima has been a walk in the park compared to the safety impacts of fossil, or even hydro. TMI was a safety non-event. Chernobyl is real, but nobody's proposing to build that kind of plant or operate it that way.

  55. The real driver of nuclear costs is interest rates by Anonymous Coward · · Score: 0

    In the case of nuclear, the reason nuclear power plant costs are so high historically is that they're signing long term interest rate loans in a historic environment of falling inflation and thus interest rates. Three Mile Island in 1979 was less than 40 years ago, and most nuclear power plants are financed with a 50 year payback horizon. The nominal interest rate on AAA bonds in 1980 was 13% with 15% inflation (sounds like a good deal, right?) but today AAA bond rate is 4% with 0% inflation. If you bet billions on 50 year duration bonds at 13% interest expecting 10-15% inflation and got 3% average inflation over 40 years, you would be a financial disaster too. $1 billion borrowed with a 7% real interest error over 40 years is suddenly $15 billion with no change in real construction costs. Meanwhile, if you are building ANY power plant today (cough solar wind gas cough) with 4% AAA bonds, you can be pretty sure inflation isn't going lower than the current 0% without causing a deflationary spiral that would ruin everything anyway.

  56. Dear Sir and/or Madam by Irate+Engineer · · Score: 1

    Your post advocates a

    ( ) technical ( ) legislative ( ) market-based (X) magical ( )vigilante

    approach to minimizing global warming by expanding nuclear power. Your idea will not work. Here is why it won't work.

    (X) People are afraid of nuclear power, because nuclear.

    (X) Anthropocentric Global Warming (AGW) itself is argued not to exist.

    (X) There are cheaper, more established alternative energy technologies such as wind and solar.

    Specifically, your plan fails to account for

    (X) People's irrational fear of nuclear power.

    (X) People's lack of science literacy.

    (X) People's devotional belief for/against AGW.

    (X) Costs.

    (X) NIMBY attitudes.

    (X) Politics (general).

    (X) Donald Trump.

    (X) Terrorists.

    (X) Asshats (other).

    and the following philosophical objections may also apply:

    ( ) Ideas similar to yours are easy to come up with, yet none have ever been shown practical.

    (X) It requires cooperation and agreement between too many conflicting groups.

    (X) It requires deliberate, informed decision making from people and politicians.

    Furthermore, this is what I think about you:

    (X) Sorry dude, but I don't think it would work.

    ( ) This is a stupid idea, and you're a stupid person for suggesting it.

    ( ) Nice try, assh0le! I'm going to find out where you live and burn your house down!

    --

    Left MS Windows for Linux Mint and never looked back!

    Vote for Bernie in 2016!

  57. single-solution ideologues by DriveDog · · Score: 1

    Some years back a few researchers assembled a paper outlining how all sorts of technologies and measures could reduce CO2 output, referring to each as a wedge (slice of the reduction pie). That remains the ONLY study I've seen that realistically included all feasible options without venturing into blue-sky speculation and handwaving arguments.

    1. Re:single-solution ideologues by mdsolar · · Score: 1

      For the US, Reinventing Fire does a nice job.

  58. But in the here-and-now by leftover · · Score: 1

    With respect, mdsolar, your view of Pax Solaris depends on taking an extremely shallow view of solar energy while diving deep into the gritty problems with how nuclear energy has been used in the past.

    Solar energy is intrinsically diffuse while nuclear power sources are intrinsically focused. Those characteristics are fixed in reality but little else about them is. We certainly should not do "more of the same old" in nuclear power. We just as certainly need far better ways to collect and focus solar power.

    Finding better ways to do things is what technical people should be doing.

    --
    Bent, folded, spindled, and mutilated.
    1. Re:But in the here-and-now by mdsolar · · Score: 1

      In my opinion, the most daring and successful progressive accomplishments lead to the most enduring conservative periods. Conversion to solar power may be as large a step as Plato's invention of a republic. It may leave technical people with little to do. Bread and circuses may be back for a long stay.

    2. Re:But in the here-and-now by kheldan · · Score: 1

      Photovoltaics are putting a band-aid on the world's energy problems. It's a useful interim solution, but it is not a long-term solution. Among other things the energy density is too low. I work for a large corporation and they're installing literally acres and acres of solar panels everywhere they can, and it's still not enough to make them independent of the public grid -- especially when you consider that the sun has to be shining for them to work at all. Enjoy the solar panels on the roof of your house, friend, I'm sure they cut your electric bill, but it's not the be-all-end-all solution to the world's energy needs, never has been, never will be, not even with wind and wave power.

      --
      Are YOU using the TOOL, or is the TOOL using YOU? Think about it!
    3. Re:But in the here-and-now by mdsolar · · Score: 1

      You might want to read Reinventing Fire.

    4. Re:But in the here-and-now by kheldan · · Score: 1

      No thanks. I'll stick with thorium reactors as our best choice. And I'll stick by fusion power once they get that figured out.

      --
      Are YOU using the TOOL, or is the TOOL using YOU? Think about it!
    5. Re:But in the here-and-now by Anonymous Coward · · Score: 0

      Trouble is, there is no viable plan for your preference while Reinventing Fire present a number of viable option in detail. You are left with just wishful thinking.

    6. Re:But in the here-and-now by kheldan · · Score: 1

      Oh gee since it's totally impossible that anyone might build a working thorium reactor power plant in the future I'll just be a good little sheep and do what everyone else is doing because everyone else is doing it. Because we're all just sheep. BAAAAH. BAAAAH go the sheep, BAAAH, BAAAH!

      Guess what? I think you're all wrong. What are you going to do about it? Report me to the Thought Police?

      --
      Are YOU using the TOOL, or is the TOOL using YOU? Think about it!
    7. Re:But in the here-and-now by doom · · Score: 1

      This truly awesome:

      In my opinion, the most daring and successful progressive accomplishments lead to the most enduring conservative periods. Conversion to solar power may be as large a step as Plato's invention of a republic. It may leave technical people with little to do. Bread and circuses may be back for a long stay.

      I may need to make that my sig quote.

      (Slashdot featured a story by this guy, huh?)

    8. Re:But in the here-and-now by david_thornley · · Score: 1

      Plato didn't invent republics. Athens had been one for quite some time before he wrote any of his dialogs.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
    9. Re:But in the here-and-now by mdsolar · · Score: 1

      There is usually a distinction drawn between between direct democracy and a republic with selected rulers.

    10. Re:But in the here-and-now by david_thornley · · Score: 1

      A monarchy would count as a republic with selected rulers, were that not the definition of "republic". Rule by aristocracy would fit in nicely. A republic with elected rulers would be more what we think of as a republic, and Plato wasn't for that.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
    11. Re:But in the here-and-now by mdsolar · · Score: 1

      SPQR

  59. Seriously? Garbage from thinkprogress on slashdot? by Anonymous Coward · · Score: 0

    Seriously? Garbage from thinkprogress on slashdot?

    This place is basically dead now. Drag it out back and shoot it in the head. Nothing of value lost.

  60. The waste solution by GPS+Pilot · · Score: 3, Insightful

    waste, which has never been handled well

    We built a perfectly good, and safe, and vast long-term waste sequestration facility inside Yucca Mountain. It was never put into use thanks to brain-dead Nevada politicians. Never mind that it's not even in anyone's back yard.

    --
    That that is is that that that that is not is not.
  61. Nuclear reactors: not that complex by GPS+Pilot · · Score: 2

    Correct: the systems shown in the cutaway diagram are not that complex. In fact, over the decades, more engineering has gone into the subsystems inside the tractor-trailer truck that's included in the picture; its engine, and electronic engine control system, and diesel exhaust scrubber, and even the design of its tire tread, to name a few examples.

    --
    That that is is that that that that is not is not.
    1. Re:Nuclear reactors: not that complex by Anonymous Coward · · Score: 0

      That diagram is ridiculously simplistic. There is a significant amount of systems and complexity to a nuclear power plant. Perhaps more engineering work has been done to refine vehicles over the years, but they are much less complex than power plants. Operators spend two years in intense training before they are permitted to operate a nuclear plant. Even then, they only have the basic knowledge of all the power plant systems.

  62. No effort to hide bias here by GPS+Pilot · · Score: 1

    Plus, do you think a submitter named "mdsolar" might be bringing a preconceived bias into the solar vs. nuclear debate?

    --
    That that is is that that that that is not is not.
    1. Re:No effort to hide bias here by Ikemeister · · Score: 1

      Yup. Perhaps even some financial incentives sourcing his bullshit.

  63. This is where the warmists out themselves... by Anonymous Coward · · Score: 0

    This is where the warmists out themselves as not actually caring about global warming at all and only about halting economic growth. And Slashdot outs itself as being curiously biased with this 'story'.

  64. Re: Why James Hansen Is Wrong by Anonymous Coward · · Score: 0

    The post relies on an unproven and unverified assumption, "avoiding catastrophic global warming".

    Hansen et al. live day-by-day in the psychosis of catastrophe by man and they accept it without evidence.

    In their psychosis who can avoid the "catastrophe" but man.

    In their psychosis, Man created the Universe, the galaxies, the nebulae, the stars, the planets, the moon and Earth.

    In their psychosis, reality is not a physical state but a manufactured "visual" of Man, the Creator. Man Controls The Visual.

    In their psychosis, the Greenland Ice Sheet (they do not realize at Greenland Summit has an elevation in excess of 3500 meter above mean sea level!) is disintegrated and melted, the ice sheets (having substantial elevation also) are disintegrated and melted.

    Hansen and his ilk, like Bon Ki-Moon, live their lives in a far-off reality, a psychosis, that has no connection to the reality we see and touch every wakeful day of our lives.

    How sad, the days of Hansen and his ilk, like Bon Ki-Moon, and their psychotic believers in catastrophe.

    Ha ha

  65. Why by FrozenGeek · · Score: 1

    do we always seem to get into the mode of assuming that a large problem will have a single simple solution? In most of the world, solar will do nicely for many homes. In the right circumstances, wind is a useful option. Nuclear, too, has its place, as does hydroelectric. If we are to migrate away from fossil fuels, it would seem highly unlikely that we will move to a single form of power generation, but, rather, will use a group of technologies where they are best suited.

    --
    linquendum tondere
  66. What about France? by rbrander · · Score: 1

    The French do not subsidize their nuclear, which has been 75% of their electrical production for decades. Their accident and death rates are microscopic compared to any other form of generation. There is pretty much no anti-nuclear movement there, it has no constituency - and the French are hardly shy about demonstrating when they're unhappy about policy.

    So if France of the 60's, just 20 years after a devastating war, with 1st-generation nuclear tech and resources, could go mostly-nuclear in a few decades - why is it just inherently impossible for a richer, higher-tech world now to do the same?

    1. Re:What about France? by mdsolar · · Score: 1

      Apparently, the costs for France just kept on growing and now they are among the most costly builders.

  67. Hardcore insanity on steroids by Anonymous Coward · · Score: 0

    Here's the biggest problem with the bogus argument: Every criticism these crypto-Luddites level at nuclear applies even worse to the unicorn farts sources of energy THEY prefer. For every apparently "too expensive" and "too time consuming" nuke plant needed, they would have us build thousands of windmills and many square miles of solar panels, neither of which will generate reliable electric current. All solar and wind and tidal sources MUST be backed-up by nuclear or coal-fired or gas-fired plants to provide reliable power whenever the sun sets, the waves decrease, or the wind abates unless the public is going to be forced to deal with continual "rolling blackouts". Such a "green" grid needs a huge number of fully-maintained, staffed and fueled power plants on standby to fill-in any dips in power at a moment's notice. All current solar wind and tide generation SEEMS good now because it is a tiny fraction of the grid that is otherwise sustained by the existing nuclear, gas-fired, and coal-fired plants which the greenies hope nobody notices. In the glorious 100% renewable future these morons dream of, none of those other sources of power exists in sufficient quantities to keep a stable power grid and keep the lights on. In fact, most of the problems with expenses of nuclear plants are cause by the very leftists who then make the "too expensive" arguments --- it's THEIR lawsuits and environmental impact studies, and constant threats of political action to shut down nuclear plants before they can become profitable etc that are the cost drivers.

    "Think Progress" is ground zero for brainless Obamabots and propagandists - it's about as neutral and unbiased a source of information as a Klan rally, which is not surprising given its association with the planet's last proud actual WWII-era NAZI collaborator (Google: George Soros and "60 minutes"). Sorry, but groups who associate themselves with such PURE EVIL deserve nothing but scorn from anybody with a soul and a brain. NO high-profile Republican or conservative group openly associates with and takes money from an actual WWII-era NAZI collaborator the way so many of these "progressive" left wing groups do.

    Oh, to any Obamabot who sees this and gets outraged and is tempted to immediately score it "-1 Troll" to drive it under the filters of many readers: I challenge you to make a cogent argument rather then just trying to censor speech you do not like.

    1. Re:Hardcore insanity on steroids by mdsolar · · Score: 1

      Nuclear waste requires a permanent security state. In a security state, the Second Ammendment can not last because the people have to be considered the biggest threat. Cogent.... Now head off to troll land.

  68. Why build 1970 style plants now? by dbIII · · Score: 1

    The first one might be overcome. After all, if world leaders were able to simultaneously lay out this plan and get political support for it, part of the plan would include training more engineers, trades, and other jobs necessary. We might not be able to build 100 per year in 2016 (or even 2020), but we could ramp up.

    But then we get 100 really crappy reactors built each "year" so long as you define year one as about eight years after work starts on the first. Alternatively - R&D to develop pilot reactors and then the procedure is developed to build reactors that may be far better and take less time to construct. That's how we got the current generation based on 1970s technology after all, and we can ramp up R&D to apply a lot of improvements in technology to the nuclear sector to make up for the almost complete lack of development in civilian nuclear for decades

    Get it right (note I didn't say perfect) and then do it.
    The things run for decades so a few years to get it right are well worth it.
    In the long run the potential savings in construction time could mean being well ahead after committing a bit of time to R&D, especially if the answer is smaller reactors.

    Why build hundreds of AP1000 dinosaurs when the technology is available to develop into a better working reactor?

  69. That's exactly right. Up'n Atom! by TheRealHocusLocus · · Score: 2, Insightful

    This is what people don't seem to get. They compare Fukushima to a single wind turbine failure and proclaim wind is safer. Um no, Fukushima's generation capacity was equivalent to about 7,000-10,000 wind turbines.

    So much of the story is left untold, thank you for telling. No one ever seems to ask: What is good about Fukushima Daiichi?

    Fukushima's first reactor went on-line in March 1971 [cite] and 5 others followed up to 1979. Without accounting for cumulative downtime (hard to find), let's keep it simple, cut everything here by a third if you like, I come up with a combined total of ~159.12 Gigawatt-years of electricity. That's ~636.5 million tons of coal [cite] that did not have to be expensively imported and burned to help resource-poor Japan become the industrial giant it is today. Think of it as ~1.8 trillion tons of CO2 [cite] that did not enter the atmosphere, if you like. That's just one nuclear power plant with reactors that are not big by today's standards. More stats, and the interesting observation on how the hysterical press of Japan does not necessarily reflect public opinion,

    "A poll taken in February 2015 by the Mizuho Information & Research Institute of Japan asked whether or not the respondent would use nuclear-generated electricity if the costs were the same or less than they were that month, and 67% said âoeyesâ. Only 32% replied in the negative. This contrasts with a number of media polls with voluntary and hence non-representative participation, and the distortion is compounded by a 2012 news media survey finding that 47 of the 50 most popular press outlets in Japan said they were antinuclear."

    Japans few nuclear plants have provided as much as ~30% of Japan's electricity and I am confident they will pass that figure once more. Nuclear has contributed greatly to the country's wealth in ways that no other energy source could have, or ever could. There is a great deal of hidden peril facing the entire human species that is a direct result of stalling the Industrial Revolution --- by sweeping nuclear energy under the rug. As Kirk Sorensen says so eloquently,

    "Every time mankind has been able to access a new source of energy it has led to profound societal implications. Human beings had slaves for thousands of years, and when we learned how to make carbon our slave instead of other human beings, we started to learn how to be civilized people. Thorium has a million times the energy density of a cabon-hydrogen bond. What could that mean for human civilization? Once we've learned how to use it at this kind of efficiency, we will never run out. It is simply too common."

    --
    <blink>down the rabbit hole</blink>
    1. Re:That's exactly right. Up'n Atom! by AmiMoJo · · Score: 1

      Well, it's not surprising that the nuclear industry web site wouldn't think it was so bad. Note try to mislead the reader, saying things like "43 reactors are operable and potentially able to re-start", which of course they are not because many of them are now known to be unsafe. Newly discovered fault lines, previously unnoticed damage to cooling systems and emergency backups, that sort of thing.

      Japan was getting about 23% of its electrical energy from nuclear before the accident. On that day all reactors shut down simultaneously. The lights didn't go out, the country didn't grind to a halt. I was there, Japan coped with the loss of that capacity remarkably well. So a better question would be to ask if Japan should be looking to re-start those reactors or looking to replace them with something else.

      Electricity companies, who fund that web site, are keen to re-start because they invested a lot of money into those plants. The government is too, so it wants to re-start. But many people would rather than the money was put into developing other clean sources of energy.

      Misleading survey questions aside, energy in Japan isn't even that expensive. Sites like this like to make out that Japan has so few resources most energy must be imported and really expensive, but electricity is comparable to central Europe and petrol is cheaper.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
  70. Learn what base load means by dbIII · · Score: 1

    You don't turn your nuke off if you can help it while you can bring a windmill on or offline at a whim.
    That's all those numbers you are misrepresenting mean.
    If you already knew that you are manipulative lying scum but I suspect you are just a victim of such types.

    1. Re:Learn what base load means by Chas · · Score: 2

      So, because there's a cool-down time on a reactor, I'm a liar or a dupe?

      Take a look at the designs for molten salt reactors. Basically the fail state for them drains the reaction chamber and is essentially an off-switch for power generation.
      Sure, the fuel needs time to actually cool off (thermally).

      But hey, so does the molten salt (or other thermal medium) in a non-PV solar plant too.

      And, again, PV solar and wind simply aren't as stable and dependable a power generation platform. This is why you can't use them for baseline power.

      --


      Chas - The one, the only.
      THANK GOD!!!
    2. Re:Learn what base load means by Anonymous Coward · · Score: 0

      For your information, the reason we don't shut down the nuke power plants is not because there is some long cool down or having to let the fuel cool.

      The fuel stays hot due to radioactive decay heat generation, but that does not have any effect on the ability to start up the reactor again.

      I worked on a training submarine plant where we sometimes started up and shut down the reactor 6 times a day. Current reactor designs use control rods which can insert reactivity very quickly.

      The reason nuke plants stay up for so long is because they can. If the plant is shut down, it does not make power. It is the goal of nuke plants to make "breaker to breaker runs" between refueling.

  71. Think progress...oxymoron by p51d007 · · Score: 1

    Think progress...what an oxymoron "Progress" to them, is shutting everything down, living in caves, eating sticks & berries. Nuke power would be viable, if it wasn't for all the red tape involved.

  72. Trees by Anonymous Coward · · Score: 0

    Rather than spend $B on nuclear spend those funds on developing trees that
    (1) convert wind to electricity
    (2) convert solar to electricity
    (3) preserve the beauty of a natural environment

  73. DMSOLAR SHILL by Anonymous Coward · · Score: 0

    MdSolar regularly fucks the Chinese solar panel producers. Or, they fuck him up the ass.

    I've seen Shills before, but he tops them all.

    1. Re: DMSOLAR SHILL by Anonymous Coward · · Score: 0

      Where did this comment even come from? Speaking mid thought much?

  74. Let me see if I have this right... by Anonymous Coward · · Score: 3, Insightful

    ...You take an industry that really has the best safety record of any energy producing industry, and demonize it for years on end. Protests, Movies (Stupid ones at that), over regulation, lawsuits (endless, countless lawsuits), and then you bitch and moan that it's too expensive.

    I see.

  75. Let's look at the fundumental problem. by Anonymous Coward · · Score: 0

    That is shit costs too much to build. Why does it cost so much to build. Because all the faggy ass whining liberals do not like anything that sounds like nuclear, so they raise crazy legal and political barriers to nuclear. Whiny liberals also do not like smoke because it is black and they like keeping black things locked safely away. (true fact. not only did democrats invent slavery, the highest African American incarceration rates are in liberal states) So there is a catch 22. You can't have safe and clean nuclear energy. You cant use fossil fuels. You are left with solar and wind energy. But w8. Some liberals do not like ugly unsightly bird killing wind turbines in their back yard. Solar is good. However making actual solar cells requires chemicals and mining that has been proven to cause cancer in California. So the only solution is to buy solar cells from China and ship them over to California in dirty fossil fuel burning ships. That way Californians can use the clean photovoltaically produced electrons to power their refrigerators that chill their Fuji brand water that that has been imported from overseas and stored in plastic bottles. Yes. It is truly a brave new world. I wish we could use the executive powers of the next president to create a zone for liberals. The zone would have no guns. No hunger as the state would provide them with food. (making sure they do not eat over 16oz of soda water a day). All their electricity would be produced in an environmentally conscious manner and be free. And finally we could combat the high price of housing by giving it to them free. We would look after their safety by enclosing them in gigantic walls. We would place cameras everywhere so there was no crime. We would take away all their cars, because they are dangerous. Yes. If we could only keep all our liberals locked safely away in theses institutions we could finally make America gr8 again.

  76. China by TheSync · · Score: 1

    Mainland China has 30 nuclear power reactors in operation, 24 under construction, and more about to start construction.

    China is planning to get to 200 GWe nuclear by 2030 and 400 GWe nuclear by 2050 (about 20% and 40% of current electrical power generation).

    No, that is not 100%, but a substantial chunk.

  77. nuclear =! nuclear by Anonymous Coward · · Score: 0

    There is more than one kind of nuclear reactor. Unless you read up on thorium reactors, please shut up.
    There are already several production reactors using cheap and plentiful thorium. Old uranium reactors can be refitted.
    Thorium reactors are also pretty useless for weapons production.

  78. Waste is still a problem... by ndykman · · Score: 1

    While there is a lot of new proposed designs for reactors, the nature of nuclear energy is that there is waste. Waste that is insanely toxic, some of it for an incredibly long time. In the end, all nuclear energy creates a very, very long term problem that is much harder to address. Building a reactor is fairly easy compared to figuring out what to do with what it leaves behind.

  79. The elephant in the room by Anonymous Coward · · Score: 0

    The elephant in the room is that the only way to really address the issue is or homo sapiens to use less energy. Less carbon based energy that cannot reasonably be replaced fast enough. Since energy is fairly closely related to wealth, that means as a whole, homo sapiens will be less wealthy. If the population continues to increase, a high percent of people will be poor. It is possible that due to war, natural disasters, epidemics, war-epidemics via biological warfare, famine, etc, the world population may decrease in the next few decades. Decrease rate in population growth via birth control may slow down the rate of increase, but unlikely it will cause a decrease. People like to have sex. The world population have to decrease by a fair percent, but with a smaller population each person could have a bigger slice of the pie, so to speak. I am not saying this is something to aspire too, or have as a public policy. I am saying it is possible, and as the world population increases the fragility of society to stave off the Four Horsemen of the Apocalypse lessens. Unless homo sapiens population increase levels off, there will be large die-offs. It may be tomorrow, it maybe in 200 years.
    Also possible but unlikely is that people will change values and be satisfied using less energy. Beyond food clothing and shelter, people want ipods, fast cars, fast air travel, BIG SCREEN movies, big houses, etc. etc. When I mention such concepts to one of my ex-friends, he would say, "If you really believed that, then you are arguing that you should kill yourself because you are using too much energy." I said ex-friend. It also is a fairly common viewpoint, especially among global warming deniers.

  80. Climatedot by Anonymous Coward · · Score: 0

    You actually used the phrase "catastrophic global warming", instead of the meaningless term 'climate change' - bad Climatedot!

    There is no such thing as 'catastsrophic man-made global warming' (you missed out the 'man-made' part - why?)

    www.climatedepot.com
    www.wattsupwiththat.com

  81. Re:Only solution to climate change is a lower stan by MrKaos · · Score: 1

    Technology is well on its way to disentangling standard of living from a reliance on fossil fuels.

    Anything specific you are talking about?

    --
    My ism, it's full of beliefs.
  82. Why is everyone thinking about 1970's power plants by Kaitiff · · Score: 1

    When they look at the cost of power plants, they always go with the old gen1 or 2 style multi-billion dollar nuclear plants from 40 or 50 years ago. There are dozens of better and safer ways to build nuclear power plants and that includes the new sexy ideas of small 'unattended' modular power reactors. Then there are the innovative designs that rewrite the whole idea behind nuke power altogether, like LFTR reactors. Hell, even if you don't go full bore Thorium reactors there are a lot of intermediate designs that use fluorine salts as a moderator and other of that ilk as well. If we put a fraction of the time and energy into building modern reactors as we did to upgrade fucking cell phones we'd all have a modular reactor in our neighborhoods by now. Jesus.. can we prioritize at all here people?

    --
    If I sound stupid, it's not me talking....
  83. Re:Only solution to climate change is a lower stan by khallow · · Score: 1

    Anything specific you are talking about?

    Sure, biofuels, nuclear power, renewable electric power, that sort of thing. Just because fossil fuels are more economical now, doesn't mean they'll stay that way. I just think that expecting a standard of living to require a certain amount of fossil fuels burned is a blindered view of things.

    Like yesterday, my standard of living wasn't burning half a gallon of gasoline or using a modest amount of electricity, it was getting from point A to point B for a social affair. There's no law of physics that requires me to have dinosaurs and fossil fuel-derived corn in the tank or 300 million year old plants in my local power plant. It just happens to be what is used now.

    While I think that the current alleged consensus on catastrophic global warming and other climate change is grossly exaggerated, I don't see fossil fuels being used as they currently are forever. There will come a time when we'll switch to other things. I'm just not in a hurry to do so.

  84. Re:Only solution to climate change is a lower stan by MrKaos · · Score: 1

    While I think that the current alleged consensus on catastrophic global warming and other climate change is grossly exaggerated,

    What do you mean?

    I don't see fossil fuels being used as they currently are forever.

    How will they be used?

    There will come a time when we'll switch to other things.

    Like what?

    --
    My ism, it's full of beliefs.
  85. Re:Only solution to climate change is a lower stan by khallow · · Score: 1

    While I think that the current alleged consensus on catastrophic global warming and other climate change is grossly exaggerated,

    What do you mean?

    For example, the media routinely exaggerates any research that even hints at climate change being involved. The IPCC which alleges to be a neutral party routinely exaggerates the extent, impact, and certainty of global warming as can be seen in the variation between the summaries for policy makers versus the actual research described in their multiyear assessment reports.

    I don't see fossil fuels being used as they currently are forever.

    How will they be used?

    Like most resources, as they become more scarce and more costly to extract, fossil fuels will be continue to be used for higher value purposes. For example, pesticides, plastics, and fertilizer (nitrogen fixing).

    There will come a time when we'll switch to other things.

    Like what?

    I already mentioned some in my previous post:

    Sure, biofuels, nuclear power, renewable electric power, that sort of thing.

  86. Lawyer's Costs by gazelam · · Score: 1

    The technical arguments can and will continue until someone decides the best trade-offs against the future needs and complications. The real impediment is the costs that will need to be allocated for attorney's fees ad infinitum. The involvement of politicians and their attorneys, the EPA and their attorneys, and various NIMBY and other group's attorneys is why it takes so long to permit and build a nuclear plant. Moreover, that's why so few are in operation anyway. Power companies will not pay the lawyer tax if they can help it, and that's what has made investment in coal and natural gas generating plants so much more financially rewarding. Even the subsidies for renewable energy pale in comparison to attorney's fees in a balance sheet.

  87. How will that work . . . exactly? by Anonymous Coward · · Score: 0

    Uranium isn't exactly a common metal. Not only that, U-235, which is required for Nuclear reactors is a tiny fraction, say a few percentage points at most, of the total uranium available. As I understand it, if all the world's energy were met by U-235 alone, we would be out in less than 20 years. Breeder reactors could provide more, but they are limited by various regulations.

    Thorium reactors hold a lot of promise. There is a lot more thorium available - much more than uranium - and there is only one isotope. Give it an extra neutron by putting it in a layer around a reactor and you get U-233, fissionable and useful just like U-235, but man-made. Oh wait, Ooops, EPA regulations limit the availability of Thorium by making it illegal to mine especially as it occurs in mines that have rare-earth metals. To be honest, I'm not sure if the problem is the Thorium that they try to limit or the rare-earths, but there goes another possibility.

    Watching arguments for going nuclear is like watching a race where favored participants all have a length of rope tied around their ankles. As soon as one starts to show promise, the rope is shortened and the runner is told to go faster. Perhaps this is all just a show. It is easier to convince someone to drop one form of energy (carbon based) if you feel another promising form of energy is readily available. But at the very least, don't call nuclear energy cheap energy. Replacing fossil fuel energy with nuclear energy is simply replacing cheap energy that is available to everyone (private generators are available) with expensive, highly regulated energy that is controlled by the few.

  88. Re:The real driver of nuclear costs is interest ra by oh_my_080980980 · · Score: 1

    Ummm, actually banks see nuclear power plants as risky investments. Hence why interest rates are high and why many banks won't provide loans.

  89. Not the only issue by Anonymous Coward · · Score: 0

    Nuclear or not doesn't solve the world's problems. There's something like 70 billion cattle worldwide being raised for food, mainly eating starches, (in the Excited States they eat heavily subsidized corn) drinking 30 gallons a day and farting copious amounts of methane. Methane is 20-85 times more harmful to the environment(depending on whose figures you take). Add in the pork, chicken, veal, and other meat that being raised worldwide, and you'd need several earths to cope with that. Raising animals for food is so inefficient as a process for feeding ourselves that it will ultimately kill us all. And nobody can stop it - there's too many vested interests.

  90. Pro-nuclear lying and chicanery ahoy by Anonymous Coward · · Score: 0

    If wind and solar are so cheap, why do you have to bribe people to build them?

    You don't. Stop lying.

    I understand that nuclear fanatics have their own separate reality where war never happens so having the ultimate Achilles heel that nuclear plants represent, militarily, doesn't matter. OK, fine, wax rhapsodic about the wonders of fission, we'll listen. It's not like you don't have some good points!

    But come on. You have to be able to see that thousands of us have installed solar and wind with no subsidies whatsoever, sometimes in contravention of law. Yeah, we did that. Since the 1970s, in fact, when used Arco panels cost almost $7 a watt. Shill for nuclear all you want but stop lying. People want solar and wind, with or without subsidies (and the majority of us want our taxes to subsidize solar if any energy technology will be subsidized).

    Meanwhile, there's never been an unsubsidized nuclear plant. Ever. And less than 5% of the human race supports those subsidies. Fundamentally, nuclear is the choice for communist regimes and dictatorships that don't care what the constituency wants. Because regular people don't want it; we can see that it's too centralized and militarily weak to ever be part of a free and fair marketplace.

    Stop lying.

  91. Re:Why is everyone thinking about 1970's power pla by Luthair · · Score: 1

    What was that, I was playing candy crush

  92. molten salt reactors? by Anonymous Coward · · Score: 0

    It would be nice to see more action being taken to investigate other nuclear options; molten salt reactors for example... https://en.wikipedia.org/wiki/Molten_salt_reactor and http://www.transatomicpower.com/ thoughts???

  93. Except it's not by Anonymous Coward · · Score: 0
  94. no, he's right by prof_robinson · · Score: 0

    I don't agree with Hansen on much of anything, really, except for this: if you really want to de-carbonize the energy sector, it *has* to be nuclear. There are a number of "safe" designs at the moment (Thorium/breeder/etc), the energy output is the only green source that rivals carbon energy in terms of footprint and fuel, and the only reason the construction costs are so high is because of the oppressive regulatory structure. Fix that, and the costs will probably go below carbon energy.

  95. Think thorium by iMactheKnife · · Score: 1

    Uranium based fission power has its problems, and although the newer reactors are safer, costs and licensing are still prohibitive.
    Liquid thorium salt reactors are much cheaper, quite safe, easier to build as they have fewer moving parts, and look like the optimum solution to base power generation. There is no shortage of the thorium ore in the USA. We hardly ever hear thorium considered by the climate media. Why is that? Is thorium the industry-buster I think it is?

  96. Because 1960s designs don't work by mdsolar · · Score: 1
  97. You got nuclear in my renewables by doom · · Score: 1

    Quoting The IPCC's Fifth Assessment Report (discussed here):

    Achieving deep cuts [in greenhouse gas (GHG) emissions] will require more intensive use of low-GHG technologies such as renewable energy, nuclear energy, and CCS.

    So, someone who is completely anti-nuclear is in conflict with the IPCC, which is supposed to be the standard for technical consensus, right? It's only those crazy global warming denialists who think they know better than the IPCC.

    In this piece by Joe Romm (linked to here by timothy) I think the first step is to note that he's critiquing something over at the Guardian UK site written by James Hansen, Kerry Emanuel, Ken Caldeira and Tom Wigley, Nuclear power paves the only viable path forward on climate change (it's distantly possible that you're better off reading something by James Hansen rather than by some guy who actually quotes Mark Jacobson approvingly).

    Please note the sub-title on that Hansen piece: "Alongside renewables, Nuclear will make the difference". Joe Romm insists it's likely nuclear power will be just a "bit player", but conceeds we should keep working on it, e.g. he likes research into small, modular reactors. Hansen and company don't dispute that renewables have a role to play, they just insist we can't solve the problem without nuclear. Arguably, the great fight here is over whether we need renewables plus nukes, or nukes plus renewables.

    Hansen and company say:

    For example, a build rate of 61 new reactors per year could entirely replace current fossil fuel electricity generation by 2050. Accounting for increased global electricity demand driven by population growth and development in poorer countries, which would add another 54 reactors per year, this makes a total requirement of 115 reactors per year to 2050 to entirely decarbonise the global electricity system in this illustrative scenario. We know that this is technically achievable because France and Sweden were able to ramp up nuclear power to high levels in just 15-20 years."

    Joe Romm argues:

    According to the online database of the International Atomic Energy Agency, France has 58 operational reactors, which took the country more than two decades to connect to the grid! That would be a rate of under three per year.

    Actually, 58 reactors over two decades is in fact nearly 3 per year, and that's built by a single country.

    Why, that would mean that to build 115 reactors per year we might need the efforts of nearly 40 countries! Oh my god where are we going to find that many?

    Seriously: you need to grasp the sheer scale of the problem of decarbonizing the world economy. If you look at what we need to do to ramp up any clean energy source, it's absolutely huge. Take a look at some of the numbers Saul Griffith crunched back in 2009:

    Two terawatts of photovoltaic would require installing 100 square meters of 15-percent-efficient solar cells every second, second after second, for the next 25 years. (Thatâ(TM)s about 1,200 square miles of solar cells a year, times 25 equals 30,000 square miles of photovoltaic cells.) [ ... and so on ... ]

    Another version of that talk is here. Anything we do is going to involve incredible magnitudes of rapid construction, and we really need to get started on it.

    By the way, Hansen and company did an extended presentation at COP21.

    1. Re:You got nuclear in my renewables by mdsolar · · Score: 1

      Except, building 61 reactor a year runs out of uranium before the build is finished. It is a pipe dream.

  98. What's already at Yucca Mountain by Mike+Van+Pelt · · Score: 1

    For omni-obstructionists who kvetch about the safety of glassified waste stored at Yucca Mountain, or those who might be swayed by such kevetching, go to Google Earth, search for "Sedan Crater", and scan south. *THAT* is what's already there. Nuke crater after nuke crater, with no containment whatsoever other than it happens to be underground. Mostly.

    No one has ever given anything even close to vaguely resembling a cogent argument as to how glassified waste could be anywhere in the same galaxy as much of a hazard as what's already there.

  99. Re:That's based on yesterday's technology by geowar · · Score: 1

    All this is based on Gen I & II reactors; Gen III & IV reactors could be much smaller (& safer, & efficient: (gas turbines instead of steam)); Thorium is plentiful (and we'd use most (99%) of it instead of only 1% of the Uranium that's in a fuel rod) and cheaper (because you don't need the expensive building necessary to hold the cooling water that flashes into steam when water cooled reactors lose containment).

  100. regulatory overhead by DarthVain · · Score: 1

    Much of which is created to mitigate public opinion which has the nuclear industry demonized for decades. Not quite the same issue, but not a lot of new oil refineries get built for the exact same reason.

    One of the more unique issues that nuclear generation does have to deal with that most don't are a) decommissioning and b) insurance. Much of which is associated with private VS public ownership. In both cases much of the regulation is probably because of privately run operations, which for both a) and b) generally revert back to public responsibility anyway due to scope.

    I'm a proponent of nuclear generation done right, however even I am a bit leery of the idea of having a privately run nuclear plant where should anything go wrong the public not the company is on the hook... It's about responsibility. If I'm a company and operating an aging plant, am I more concerned with ensuing that all safety measures are in place, or that decommissioning (usually a fund) in on track, or profits for the next quarter?

    Nationally I think build more and research better. I keep hearing about safer, smaller scale reactors, but I think there is a lack of incentive/appetite to build/research and everyone is getting distracted by the shiny renewables.

    That said, I think if the last ten years has taught us anything it is that even things like wind can have a lot of public resistance, particularly in the best areas, near or off shore, because of very wealthy people that own cottages, who think the turbines wreak their view, or have a negative impact on re-sale value (but will cite environmental reasons).

  101. Democracy by DarthVain · · Score: 1

    That is where democracy falls down a bit. Politicians need to get elected. If the public is made fearful of nuclear, few politicians are going to risk re-election. Far better to shine up some friendly (if useless) solar panels. China sees a need, comes to a conclusions as to how to best process for the country, then does it. There isn't a debate.

    In fact, this is even more pronounced in energy due to the long term thinking necessary (i.e. past an election cycle). Just look at some of the hydro projects where they literally re-located millions of people, where geographically it made sense to do so for hydroelectric power.

    I think at some point people will look back in history and be baffled at some of the decisions being made that had more to do with political cycles than any logical thought.

    That said I don't really want to live without democracy, it just makes long term visionary projects that might be unpopular pretty hard to do. Heck it seems with current politics, they want to take whatever the previous party managed to get done, ruin it, and then blame them for the failure in the next election.

    1. Re:Democracy by Rakarra · · Score: 1

      Sure, it works when it comes to building a nuclear plant. Of course, the same attitude (we know better than everyone else, we'll push this through by sheer fiat) also led to some absolute disasters like the Great Leap Forward.

  102. We need to work on all options by TomGreenhaw · · Score: 1

    Nuclear is important but alone cannot solve all our problems. Wind and photo-voltaic are also critical components. Because the goal is to reduce CO2 emissions, converting shipping away from bunker fuel, the manufacture of cement and many other contributors to man made CO2 emissions needs to be addressed. Its not A,B or C, its D - all of the above.

    --
    Greed is the root of all evil.
    1. Re:We need to work on all options by mdsolar · · Score: 1

      All except nuclear apparently: http://midwestenergynews.com/2...

  103. Re:THiw much can nuclear grow by Anonymous Coward · · Score: 0

    The `unprecedented" growth needed for nuclear to do most of the job is not unprecedented. The relevant rate of growth is not (new reactors per year), but (new reactors per year)/(population of advanced countries). Furthermore one wants to take into account increased productivity:

    (new reactors per year)/(population of advanced countries) x productivity index

  104. He's right about nuclear power but wrong on AGW by Anonymous Coward · · Score: 0

    This has it all backwards. Hansen is right about nuclear power (youtube Kirk Sorensen and LFTR) but Hansen is wrong on global warming.

    A question for everyone who thinks that CO2 controls the climate. How long with rising CO2 and flat or falling temperatures before you admit your theory is wrong? 20 years? 30? Never?

    Both of the satellite datasets (RSS, UAH) show no warming for over 18 years. In that time CO2 has risen 8-10%.

    Why do I use the 2 satellite measurements?
    First they have the greatest coverage. RSS goes from 82.5N to 82.5 S and UAH, 85N to 85S.

    Second they are the least adjusted. Unlike NOAA which makes completely unjustified adjustments by raising good data (ARGO bouy temps) to match what they themselves admit is bad, corrupted data (ship engine intake temps).

    Lastly they are run by 2 scientists with good credentials (Dr Mears & Dr Spencer respectively) and despite looking at what is almost the same data come to different conclusions. Dr Mears thinks CO2 does control the climate and Dr Spencer does not. I like that. Not only does it keep them honest it makes me think and read both sides to see why they are so different in their conclusions despite almost identical data. So far I side with the position of Dr Spencer.

  105. You sir have read too much sci-fi by Kaitiff · · Score: 1

    Ok, I'll grant you that our current nuclear reactors leave a lot of long-lived transuranic elements with extremely long half-lives. That's why In most of the enlightened posts up to now (that you probably didn't read or can't understand) people are suggesting newer and better designed reactors. A Thorium based reactor, especially one that is in a liquid fluoride moderator has NO long lived (at least none longer than say 100 years or so) fission products. Most of the ones it DOES produce would be useful in medical research and other scientific endeavors, AND to top it off, the current waste that we have laying around can be BURNT OFF in them. That's right, the leftover mess from 60 years or so of playing with nuclear power can be safely disposed of, making useful power instead.

    Your supposition that we'll all be back to beating on rocks at some undetermined point in time is fatalistic at best. I can say that the cornerstone of a modern society is POWER. Before we harnessed chemical energy in a large scale manner that power came from people in the form of slavery. At every juncture in the timeline of humanity when there was a breakthrough in the production and dissemination of power the standard of living for the common man improved dramatically. There are huge swaths of humanity that still do not have access to the limited resources of dinosaur fuel we used predominantly today. You want to raise up the poor unwashed masses around the globe, and feed them better? Provide them with affordable cheap and safe power. Without power, agriculture, sanitation, construction etc etc etc are stifled. With it, clean water is made easy, sewage treatment becomes trivial, medicine, education, clothing, heating, cooling etc etc etc, all become possible. Cheap plentiful power is the ONLY way to advance the cause of the human race. PERIOD. Fossil fuels can not provide it for all of us. "Renewables' like solar and wind can provide trickles of what's needed, but they'll never ever be able to completely meet the needs of an advanced society.

    I am disgusted by the droves of mindless nay-sayers who vilify nuclear power without any understanding of what it is they talk about. Endlessly belching out their vitriolic toxic idea that they've parroted from others w/out understanding what it is that they are talking about. You're worried about education in remote places in the world? How about we review what our own children are learning in the schools in our first world countries. When children know more about the pop-top 40 charts than they do the periodic chart of the elements, that's a problem. When modern adults can tell you all about pookie's day on some reality show but can't tell you anything about the history of the human race, that's a problem. I say take away their goddamned 'selfie-sticks' and give them a slide rule, and the know-how to use them!

    --
    If I sound stupid, it's not me talking....
  106. Nuclear industry fears the breeze by mdsolar · · Score: 1
  107. 60,000 excess cancer deaths Chernobyl by mdsolar · · Score: 1

    Over 100,000 refugees Fukushima. You've got a screw loose.

  108. um, history proves you wrong by Anonymous Coward · · Score: 0

    History is loaded with examples of the "police state", which is the historical norm for human beings. Most people in human history have not, however, had nuclear power.

    Furthermore, a decent population can be trusted with anything from guns to nuclear power but an anarchic population cannot be trusted with pointy sticks.

    Go take your assumption that all people are untrustworthy with even pointy sticks back to troll-ville where I'm relatively sure you think those same crazy and untrustworthy people who clearly need "gun control" can be trusted to run every detail of the lives of other people and can be fully trusted with guns if you stuff them into government uniforms.

    1. Re:um, history proves you wrong by mdsolar · · Score: 1

      The statement was about waste, not power. Think harder.

  109. Not quite like Star Trek by dbIII · · Score: 1

    So, because there's a cool-down time on a reactor

    There is a lot more to it than that, such as a bit of loss of remaining life due to thermal fatigue every time you do a cold start.

    In simple terms base load is designed for base load so if you use it for anything else you do not get good value. Solar thermal with molten salt would also be designed to be online as much as possible as distinct from peak power sources.
    You've been tricked by someone that wanted to simplify everything into "energy" like a bad episode of Star Trek. They are pretending that a power supply that is used to make up peaks is unreliable because the demand is not constant - a misdirecting trick to fool those who are not paying attention.
    Grids are very large now and there's always wind somewhere - continent size calms are like arguing for a flat earth. Similarly it's very rare for cloud to cover an entire continent for days at a time so solar is not "unstable".

  110. Re: old thread by themusicgod1 · · Score: 1
    --
    GENERATION 26: The first time you see this, copy it into your sig on any forum and add 1 to the generation.
  111. Re: old thread by MichaelSmith · · Score: 1

    I for one am glad we are not running HURD.