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World's Largest Solar Plants Planned In California

Pickens writes "Two photovoltaic solar power plants will be built in San Luis Obispo County in California, covering 12.5 square miles, that together will generate about 800 megawatts of power, the latest indication that solar energy is starting to achieve significant scale. 'If you're going to make a difference, you've got to do it big,' said Randy Goldstein, the chief executive of OptiSolar. OptiSolar will employ enough of its amorphous silicon thin-film solar panels at its Topaz Solar Farm project to generate 550 MW. Meanwhile, SunPower will install mechanical tracking for its more expensive 250 MW-worth of crystalline silicon photovoltaics at High Plains Ranch II in a bid to boost their efficiency by 30 percent from following the sun across the sky. The power will be sold to Pacific Gas & Electric, which is under a state mandate to get 20 percent of its electricity from renewable sources by 2010. The utility said that it expected the new plants to be competitive with other renewable energy sources, including wind turbines and solar thermal plants. 'These landmark agreements signal the arrival of utility-scale PV solar power that may be cost-competitive with solar thermal and wind energy,' said Jack Keenan, chief operating officer and senior vice president for PG&E." Reader thefickler notes some related news that researchers have developed a method of collecting infrared rays at night to supplement day-time solar power.

403 comments

  1. Nuke Plants More Dense by Anonymous Coward · · Score: 4, Informative

    A nuclear plant could produce twice that on about ten acres.

    1. Re:Nuke Plants More Dense by antirelic · · Score: 5, Insightful

      Yes, mod parent -1, because talking common sense when talking about environmental and social concerns is practically sacrilege. Why -1? Because he isnt in your environmentalist hippie nuclear power hating cult? Give me a fucking break. If nuclear power produces that much more power, in a more confined area, for less money, and produces negligible amounts of pollution whats the problem?

      I would love to see solar and wind to become the only needed power source, but that isnt a reality. While this article shows that solar is an improving technology, it is also showing that we have a long way to go for a real alternative to our current reliance on the only real options available: continued use of fossil fuels or nuclear. Reducing consumption is argument non grata. For example: Your still waisting electricity to post on slashdot.

      --
      20th century Marxism is not progress...
    2. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 4, Informative

      But how could you place a nuclear power plant in a desert without a river to cool it?

      There are simply only few places where a power plant can be built at all, even if no humans lived everywhere and had something against it.

      In the summer last year multiple nuclear plants in Europe had to get special permissions to make the rivers boil or they had switched off, just because there was not enough cool enough water in the rivers. So limiting a nuclear power plant to the area is takes itself it just absurd, you need much more place.

    3. Re:Nuke Plants More Dense by Waffle+Iron · · Score: 3, Funny

      A nuclear plant could produce twice that on about ten acres.

      If nuclear power were a viable answer to the world's energy needs, we'd be helping Iran develop its fuel cycle technology.

    4. Re:Nuke Plants More Dense by QuoteMstr · · Score: 4, Interesting

      I think that's more an issue with a specific plant design than with the technology in general. Can't you use radiative closed-cycle cooling, like in a big automobile engine?

      Fortunately, the places people tend to actually live are the places with water.

    5. Re:Nuke Plants More Dense by felipekk · · Score: 1

      Available area to build these is not really the problem here. It is not like California is crowded and has no where to grow.

    6. Re:Nuke Plants More Dense by kmac06 · · Score: 1

      I've never been that good in geography, but I seem to remember some big body of water near California. Can't quite come up with what it is at the moment...

    7. Re:Nuke Plants More Dense by EricTheMad · · Score: 3, Informative

      You're right that it's really a problem inherent in the specific plant design. For instance, a Pebble Bed Reactor is much safer, and doesn't require water for cooling. http://en.wikipedia.org/wiki/Pebble_bed_reactor

      --
      -- Remember, we're not happy until you're not happy. -- Local FAA Inspector --
    8. Re:Nuke Plants More Dense by Original+Replica · · Score: 4, Interesting

      A nuclear plant could produce twice that on about ten acres.

      Does that ten acres include the uranium mine and the waste disposal site? Because in-situ leaching isn't exactly eco-friendly.

      --
      We are all just people.
    9. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      We already HAVE a nuke plant in SLO county (Diablo Canyon) so building another - moratorium or no - is highly unlikely.

    10. Re:Nuke Plants More Dense by klapaucjusz · · Score: 1

      A nuclear plant could produce twice that on about ten acres.

      When nuclear power was first developed, we knew we'd solve all its problems except for refuse. At that time, the problem of refuse was at least 20 years in the future, and we thought we'd have it solved by then.

      Today, 50 years later, we still don't have the faintest idea about what to do with nuclear refuse. Until this problem is solved, suggesting nuclear as the one solution to every energy problem is at best short-sighted.

    11. Re:Nuke Plants More Dense by Conanymous+Award · · Score: 1

      Yeah, California nuclear plants with the rock-solid San Andreas Fault beneath... More nukular plants to Kaleefornyah!

    12. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      You might not need water in the reactor (though usually people tell reactors cooled with water are
      safer as it stops when the water is gone), but you
      still need to bring the heat somewhere after the turbine. And without water, you simply have no chance...

    13. Re:Nuke Plants More Dense by rcs1000 · · Score: 1

      That's true.

      And nuclear is perfect for baseload electricity generation. What it's not great for is peaking power. And normally - in the US - we use gas for that.

      But here's the thing. PG&E's peak electricity load correlates almost exactly with when it is sunniest. (Because all that solar irradiation leads to aircons being turned on across Northern California.) There's actually a chart on it on some DoE paper; PG&E needs *twice* the generating capacity when the temperature is 110 degrees as when it is 60.

      This is what solar is great for in sunny places. It provides expensive peaking power. (And if you think all electricity costs the same, well you don't know anything about the electricity industry.)

      In my ideal world, we'd use nuclear and wind for baseload, with solar, biomass and gas for peaking power. But, hey, I'm not in charge.

      --
      --- My dad's political betting
    14. Re:Nuke Plants More Dense by kmac06 · · Score: 1

      In my ideal world, government with GTFO and let the businesses who are actually providing the services figure out how to do it.

    15. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      The plants will cover 12.5 square miles of central California with solar panels, and in the middle of a sunny day will generate about 800 megawatts of power, roughly equal to the size of a large coal-burning power plant or a small nuclear plant.

      RTFA

    16. Re:Nuke Plants More Dense by cheesybagel · · Score: 4, Insightful

      If you are accounting for that, account for the silicon extraction and production as well. Not to mention the toxic chemicals used in semiconductor manufacturing processes.

    17. Re:Nuke Plants More Dense by knightghost · · Score: 1

      Iran has an incredible amount of cheap natural gas available, so nuclear is far from economical for them. Also, they have demonstrated their capability of suicidal and homicidal actions so have lost the privilege of nuclear capabilities.

    18. Re:Nuke Plants More Dense by gerf · · Score: 4, Funny

      But how could you place a nuclear power plant in a desert without a river to cool it?

      If they'd played Civ3, they'd know this already. They'd also realize that Solar plants give you a 50% bonus, and nuke plants give you a 150% bonus.

    19. Re:Nuke Plants More Dense by Toonol · · Score: 2, Insightful

      We do have the problem solved, technically. The engineering solution is pretty clear; breeder reactors, reprocessing, burying whatever remains in geologically stable areas. There just isn't the political will or common sense to proceed with the solution.

    20. Re:Nuke Plants More Dense by Waffle+Iron · · Score: 1

      Also, they have demonstrated their capability of suicidal and homicidal actions so have lost the privilege of nuclear capabilities.

      Exactly. The factors that make us deem nuclear technology to be a "privilege" are the same ones that prevent it from being a viable answer to the world's energy needs.

    21. Re:Nuke Plants More Dense by knightghost · · Score: 5, Insightful

      New nuclear plants use 1/10th the water, produce 1/10th the waste, and can recycle much of that waste. We've solved the issues. Problem is a misinformed and fearful public and politicians.

    22. Re:Nuke Plants More Dense by QuoteMstr · · Score: 4, Interesting

      Yes, but the scale is tiny. Look: this argument comes up so often, I'm going to give it a name:

      The Environmentalist's Fallacy

      It goes something like this:

      1. Consider a technology X that replaces a polluting technology Y
      2. Identify some aspect of X that produces pollution
      3. Oppose X for this pollution while ignoring the pollution Y produces

      In reality, X produces far less overall pollution than Y.

      I've seen this argument used to oppose:

      • The Prius (Nickel mining)
      • Nuclear power (Uranium mining, nuclear waste)
      • Solar power (Semiconductor manufacturing, altering desert ecosystems)
      • Orbital microwave power (Rocket exhaust)
      • Hydroelectric power (Salmon migration)
      • Wind power (Birds)

      All of these are great technologies. If we're ever to make any progress, we have to learn to think past the environmentalist's fallacy.

    23. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 2, Insightful

      Today, 50 years later, we still don't have the faintest idea about what to do with nuclear refuse. Until this problem is solved, suggesting nuclear as the one solution to every energy problem is at best short-sighted.

      Yep, throwing the pollution in the atmosphere and groundwater, like with fossil fuel plants, is clearly safer than concentrating the waste in one place. That's why I toss my trash all over the neighborhood, rather than bag it for the trash man every week.

      BTW, even "clean" coal plants throw out more radiation than nuclear plants, plus they have nice things like arsenic which doesn't have a half life to worry about. Here is one link for your perusal: http://www.sciam.com/article.cfm?id=coal-ash-is-more-radioactive-than-nuclear-waste

      Instead of comparing nuclear power to mythical power plants that are free and non-polluting, perhaps it would be more helpful to compare it to things that are actually around. Some places can economically use solar power to great effect, but you should worry about whatfossil fuel plants are throwing into the environment before complaining about the horrors of nuclear waste.

    24. Re:Nuke Plants More Dense by Mage66 · · Score: 2, Insightful

      Except that our "friends" the Liberals and Green Folks WON'T LET US build more Nuclear Power Plants, even though their friends the French derive over 80% of their electrical power from Nuclear, and other countries like Japan derive the bulk of their power from Nuclear too!

      France reprocesses it's nuclear waste back into fuel because the generating process isn't 100% efficient. All you have to do is to process the fuel rods and concentrate the still useful material and remove the waste, and "Voila!" as the French say... You have more fuel.

      All the nuclear waste generated by all the nuclear plants in the world would fit into a container the size of a standard desk, I've heard.

      I like solar. It's infinitely renewable (at least in human terms), and as we develop the technology it becomes more efficient and cheaper. It takes much less to build and manage a solar plant than a nuclear plant.

      I'd like to see us build BOTH. The U.S. is mostly empty, unused land. We have plenty of space to build solar farms.

      I'd go further and say that every building in the country ought to have solar collectors on their roofs AND solar water heaters for pre-heating water to further save power.

      The more we can get our electrical generating capacity off fossil fuels the better we'll be.

      We need Nuclear for base-load power, and solar would be great for peak load times when the sun will be out, and extra energy is needed to run cooling plants like air-conditioners.

      Also, places near large bodies of water could use that method that is being used in Chicago (I believe) where very cold water is pumped up from the bottom of the lake and used to cool buildings.

      We need to conserve, because it's smart. But we need to expand energy sources to grow.

      One cannont grow by conserving. Nobody ever made a million by starting off with a dollar and saving .10

    25. Re:Nuke Plants More Dense by gerf · · Score: 2, Interesting

      Realistically, part of the problem is load balancing. While solar might be particularly well suited to covering energy needs when air conditioners kick in during the summer, what happens when we plug in our electric cars at night, or rely on electric heat when natural gas and propane prices go even higher?

      Perhaps we can use the limited information over power to load balance car charging during night hours, but even then we will either need nukes/coal, or invest in some highly expensive solar storage solutions (molten sodium, batteries, capacitors, flywheels, whatever). I think we're able to produce enough domestic power in the US to meet all our needs in the future, but the load balancing is what I think will be the most interesting thing to watch in the future.

    26. Re:Nuke Plants More Dense by arcade · · Score: 1

      I'm not sure it's a fallacy.

      Around here, the eco-people are honest enough to say what their motive is. Their motive is to get us take a cut to our living standards and reduce the need for energy.

      Of course, they will never succeed - but they don't realize that.

      --
      "Rune Kristian Viken" - http://www.nwo.no - arca
    27. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      OK. If you going to include getting materials out of the ground, what is the impact of producing those solar cells? Are they made with organic green beans?

    28. Re:Nuke Plants More Dense by Shivetya · · Score: 1

      The desert is full of life, why should it be treated any different from river life?

      Besides, the biggest problem facing the US is power transmission. If we had that down we could situate nuke plants where people didn't care or would see them.

      Got to love mandate, which means its a new tax on consumers because the power company can pass it all on. People need to realize what they are voting on.

      How much of the rated energy to solar farms produce across the year? I have seen reports than many windfarms struggle to get to 20% of their rated output across a whole year. (which essentially makes their cost five times what people list)

      --
      * Winners compare their achievements to their goals, losers compare theirs to that of others.
    29. Re:Nuke Plants More Dense by kestasjk · · Score: 2, Interesting

      Also, they have demonstrated their capability of suicidal and homicidal actions so have lost the privilege of nuclear capabilities.

      Exactly. The factors that make us deem nuclear technology to be a "privilege" are the same ones that prevent it from being a viable answer to the world's energy needs.

      Iran signed the NPA; they were completely free to use nuclear power. The only problem is that they allegedly started their nuclear program without informing the IAEA, which means they broke the terms they agreed to in the NPA.

      For some reason they're not co-operating in clearing themselves of the accusation that they started before informing the IAEA, and if nuclear power is their goal why would they do that?

      Their actions only make sense if nuclear weapons are their goal. (Also they are refusing pre-enriched uranium from Russia; why? The only logical reason is that they want to be able to enrich to weapons grade, and Russia would only sell them reactor grade.)

      --
      // MD_Update(&m,buf,j);
    30. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      We already have a nuclear plant in San Luis Obispo County

    31. Re:Nuke Plants More Dense by antirelic · · Score: 2, Interesting

      As opposed to what? Fossil fuels? PV versus Fossil fuels such as coal are not in the same league as far as scalability goes. PV cannot replace fossil fuel plants at this time, regardless of the argument.

      If your talking about pollution from Uranium mining, how about the pollution from mining that goes into extracting the metal used to build tools for creating solar panels? How about the chemicals that go into the creation of solar cells? How about the disposal of PV cells at the "end of life"? How long will a "nuclear" power plant last compared to a PV plant?

      Compare apples to apples. There will be environmental damage in creating nuclear plants as well as PV or Wind plants. The question really is how much damage occurs "on scale". You cant compare 1 PV plant to 1 nuclear plant. You have to compare as many PV plants as it takes to equal 1 nuclear plant... THEN compare the waste. Why do I get the feeling that a PV equivalent scale to nuclear will end up producing much, much more waste in the end (considering current technology only). Then again, I am just a slashdot poster. YMMV.

      --
      20th century Marxism is not progress...
    32. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      Does that ten acres also include the area to mine the ore, refine it and dispose the waste?

    33. Re:Nuke Plants More Dense by DannyO152 · · Score: 1, Insightful

      And we wave away the pesky protection and isolation of waste while it cools for a time longer than our history of recognizable civilization. San Luis Obispo already has a nuclear power plant, by the way.

    34. Re:Nuke Plants More Dense by smaddox · · Score: 1

      There are ways to bolster Nuclear energy without enhancing proliferation. One promising solution involves a fusion hybrid breeding process.

      Briefly, the idea entails the use of a tokamak fusion reactor with a thorium float wall. The thorium would be bred into uranium 235, which would be immediately mixed with uranium 238 into a noncritical mixture. The mixture could then be used to fuel several fission plants in a fission park or sent to developing countries - as long as they agree to send back the spent fuel for processing.

      The advantage of this process is that unlike what happened in North Korea with Uranium 238 and Plutonium 239 being separated chemically, enriching the 235-238 mixture into weapons-grade material would be prohibitively difficult.

    35. Re:Nuke Plants More Dense by Firethorn · · Score: 3, Informative

      And we wave away the pesky protection and isolation of waste while it cools for a time longer than our history of recognizable civilization.

      I believe that this is the first time I've heard of 'wave away' being used to disparage recycling. With recycling the waste is split 90/10 into usable fuel and waste that only needs to be stored for a couple hundred years - much more doable.

      --
      I don't read AC A human right
    36. Re:Nuke Plants More Dense by QuoteMstr · · Score: 4, Informative

      This is another example of the environmentalist's fallacy.

      First, why focus on nuclear waste while ignoring all kinds of other long-lived, harmful industrial outputs from processes like semiconductor manufacturing or steel refining?

      Second, the volume of nuclear waste is tiny. The waste produced by a nuclear plant in a decade might fill a house. And by reprocessing the waste, we can reduce its volume by 90%. Compared to other forms of power generation, nuclear plants are practically clean.

      Third, the waste that is produced is not all that dangerous: the way radioisotopes work, the more radiation a substance produces, the shorter its half-life. Long-lived waste products will be low-radioactivity and inert.

    37. Re:Nuke Plants More Dense by Waffle+Iron · · Score: 0, Troll

      Their actions only make sense if nuclear weapons are their goal.

      Precisely. That's why nuclear power is not a viable answer to the world's energy needs.

      Iran is not a special case. Regimes are constantly coming and going all over the world, and some of them are dangerously nationalistic. This will be a continual problem until we eliminate fission-based nuclear power technology.

    38. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      And a more realistic nuclear power plant would have two reactors on site with 1GW each. And they wouldn't consume so much land.

    39. Re:Nuke Plants More Dense by QuoteMstr · · Score: 1

      You can't eliminate technology any more than you can erase knowledge. Nuclear power provides a convenient cover story for weapons production, sure, but it's not actually necessary for the program.

      We must learn to deal with nuclear proliferation, and taking the ostrich approach isn't going to solve the problem.

    40. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      The "eco-people" will never succeed, but China and India will succeed in their goals for them. If you expect for Americans to maintain (or improve) their standard of living for the rest of your lifetime, you're in for a major disappointment.

    41. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      In my ideal world, I am eating pie.

    42. Re:Nuke Plants More Dense by Waffle+Iron · · Score: 0, Troll

      You can't eliminate technology any more than you can erase knowledge.

      Maybe not, but one nice thing about nuclear technology is that you can make it *really* hard to hide by sniffing trace isotopes in the air. Eliminating nuclear power generation would help make it much harder to mask clandestine programs.

      We must learn to deal with nuclear proliferation

      A good way to deal with it is make it very hard to hide, and take away any excuses to be playing around with it. If there were no civilian nuclear power, then there wouldn't be much argument in the world community about taking out Iran's program, because it would be an undeniably belligerent activity. Under that scenario, they would have been much less likely to start their activities in the first place, and we probably wouldn't have this problem at all.

      Maintaining the status quo with various countries goofing around with "peaceful research" under the guise of power generation is the real "ostrich approach".

    43. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      ...and produce ashes that have to be guarded by armed personnel for tens of thousands of years.

    44. Re:Nuke Plants More Dense by kestasjk · · Score: 2, Insightful

      1. Elimination fission-based nuclear power technology.

      2. ???

      3. No more nuclear weapons.

      North Korea didn't use fission as a major power source but they still got nukes, same with Pakistan, same with Israel.

      Nuclear power is becoming more and more economical, so if your plan for eliminating proliferation relies on fighting the laws of economics you're pretty much screwed from the start. You also need to demonstrate a correlation between nuclear proliferation and nuclear power use.

      (To save you some time: <quote>You also need to demonstrate a correlation between nuclear proliferation and nuclear power use.</quote> <p>Precisely. That's why nuclear power is not a viable answer to the world's energy needs.</p>)

      --
      // MD_Update(&m,buf,j);
    45. Re:Nuke Plants More Dense by Bjorn_Redtail · · Score: 2, Insightful

      A nuclear plant would also require water for cooling, which is rater absent from the California Valley area of Eastern San Luis Obispo county where these things are being built.

    46. Re:Nuke Plants More Dense by Firethorn · · Score: 1

      Just to be honest - the safety and economic benefits of pebble beds over other GenIV reactor designs have yet to be proven. For another, the only water eliminated in a pebble bed is the primary coolant - secondary systems are still water/steam.

      --
      I don't read AC A human right
    47. Re:Nuke Plants More Dense by h4rm0ny · · Score: 3, Interesting

      This is another example of the environmentalist's fallacy.

      Excuse me, Greenpeace != All Environmentalists. In a lot of ways, they're just a nuisance who claim to speak for others. There are plenty of us "environmentalists" who are very pro-nuclear. I am one of them.

      --

      Aide-toi, le Ciel t'aidera - Jeanne D'Arc.
    48. Re:Nuke Plants More Dense by Waffle+Iron · · Score: 1

      2. ???

      2. = Enforce ban on fission activities of any kind because there's no longer any excuse for them

      North Korea didn't use fission as a major power source but they still got nukes, same with Pakistan, same with Israel.

      They all hid their weapons programs within "civilian" nuclear research. They all justify such research with the need to develop "peaceful" nuclear power. Of course they didn't need large power reactors to generate weapons materials. The point is, they shouldn't have *any* reactors, large or small, nor an excuse to build them.

      You also need to demonstrate a correlation between nuclear proliferation and nuclear power use.

      100% of countries that developed nuclear weapons had nuclear power or "research" reactors.

    49. Re:Nuke Plants More Dense by strabes · · Score: 1

      Hey, the Colorado river (and Hoover Dam) is about 1 hour from Las Vegas. We could build a nuclear power plant on it, use the Colorado river to cool it, and dump the waste into Yucca Mountain! Convenient, and makes use of the vast desert wasteland that is the rest of Nevada. (I live in Las Vegas).

      --
      Its = possessive. It's = "it is"
    50. Re:Nuke Plants More Dense by strabes · · Score: 1

      Man, we should just build the nuclear power plant under the Pacific Ocean. It would keep cool and we wouldn't have those ugly "silos"!!

      --
      Its = possessive. It's = "it is"
    51. Re:Nuke Plants More Dense by Firethorn · · Score: 1

      California nuclear plants with the rock-solid San Andreas Fault beneath.

      Then build the new plants OFF the fault, and shut down the old one on the fault once you've shut down the various other power sources that are more polluting or expensive to run.

      --
      I don't read AC A human right
    52. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      You wrote "If nuclear power produces that much more power, in a more confined area, for less money, and produces negligible amounts of pollution whats the problem?"

          I question the "for less money" part. The latest cost estimates I've seen for Nuclear are unreal. Progress Energy is building 2 gigawatts of Nuclear in Florida and are currently estimating a _minimum_ cost of $14 billion for the plant. It is my understanding that this does not include any money for operation or waste cleanup. If you look at historic cost overruns on nuclear plants (several hundred percent are not unusual), those plants might wind up costing 60 billion by the time they are done. You could probably bring a 20 gigawatt solar farm on-line for that much money.

          Unless the nuclear industry can get plant costs under control, they are removing themselves from the long term picture.

    53. Re:Nuke Plants More Dense by dave562 · · Score: 4, Insightful
      Why does this drivel keep getting posted and moderated up? I'd give a -1 myself but I think it's better to post and try to make a point. I haven't seen anyone saying that we are going to completely get rid of fossil fuels. I haven't seen anyone saying that we are going to go to 100% renewable resources. Those seem to be the strawmen that are always trotted out in these discussions.

      The point in renewable technologies is that any additional power that we can get outside of the fossil/nuclear fuel box is a good thing. The power demands of society will continue to increase. I'm not completely convinced that petroleum (note I don't use the term "fossil fuels") is a limited resource. However it is quite possible that we will continue to consume it more quickly than it is replenished by whatever process pumps the stuff into the earth's crust. Nuclear (uranium and plutonium) energy sources are scarce and hard to get to. One of the big reasons we're in Afghanistan is because they have huge uranium deposits there. I'm getting off on a tangent so I will try to draw a couple of analogies here.

      Just because you might never win the Boston marathon doesn't mean that you shouldn't do cardio training to keep yourself healthy. Just because you will never be a body builder doesn't mean you shouldn't exercise and have a good diet. Just because you can't afford a Ferrari doesn't mean you shouldn't drive. Just because wind and solar power might not ever produce base load power doesn't mean that we shouldn't harness them to the best of our ability. Just because one particular technology might be "better" than another does not make the other technology worthless. To use a computer analogy... "Why do you even bother with a stupid desktop computer? Obviously a supercomputer is much more powerful."

    54. Re:Nuke Plants More Dense by vertinox · · Score: 2, Insightful

      A nuclear plant could produce twice that on about ten acres.

      True, but you can't install your own nuclear power plant in your basement (well without getting into trouble) and get off the grid all together.

      I'm all for large development of solar panel because eventually that means the panels that you can install yourself will be developed sooner than later and therefore sooner you can get off the grid all together and never have to pay a power company a dime ever again.

      --
      "I am the king of the Romans, and am superior to rules of grammar!"
      -Sigismund, Holy Roman Emperor (1368-1437)
    55. Re:Nuke Plants More Dense by ksd1337 · · Score: 2, Funny

      They would also know that in certain cases, a Warrior could destroy a tank.

    56. Re:Nuke Plants More Dense by kestasjk · · Score: 1

      2. = Enforce ban on fission activities of any kind because there's no longer any excuse for them

      How about economic power without greenhouse gas emissions?
      (I won't bother asking who is going to enforce this ban..)

      They all hid their weapons programs within "civilian" nuclear research.

      They tried to; they failed. The system works.

      100% of countries that developed nuclear weapons had nuclear power or "research" reactors.

      That doesn't show the link between nuclear power generation and nuclear proliferation. But I guess this means there should be no more reactors for medical isotopes either? Even here in Australia where the government is opposed to nuclear power we have reactors for medical isotopes, you want those closed down too?

      Your ban would suck for all the people who rely on nuclear reactors for energy and medical imaging, and all it'd do is remove a supposed smoke screen which evidently failed to work for Iran.

      Even if everyone closed their reactors down, what's to stop a rogue nation building one? Do you think once there are no nuclear reactors rogue nations will somehow forget that such things exist, or does your ban on all nuclear reactors include a ban on teaching nuclear physics?

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    57. Re:Nuke Plants More Dense by kestasjk · · Score: 1

      Maybe not, but one nice thing about nuclear technology is that you can make it *really* hard to hide by sniffing trace isotopes in the air.

      So civilian nuclear power generation releases amounts of isotopes into the atmosphere that can be detected? That must be one leaky reactor.

      --
      // MD_Update(&m,buf,j);
    58. Re:Nuke Plants More Dense by marxmarv · · Score: 3, Interesting
      --
      /. -- the Free Republic of technology.
    59. Re:Nuke Plants More Dense by Huge_UID · · Score: 1

      And what would it cost?

    60. Re:Nuke Plants More Dense by couchslug · · Score: 1

      "Problem is a misinformed and fearful public and politicians."

      LIAR! Three Mile Chernobyl will kill us all!

      Whew. Lost it for a moment. I'm all better now.

      --
      "This post is an artistic work of fiction and falsehood. Only a fool would take anything posted here as fact."
    61. Re:Nuke Plants More Dense by Waffle+Iron · · Score: 1

      Yes. It's not just the reactors, but the entire fuel cycle that may emit trace amounts of isotopes that don't occur in nature. It would be almost impossible to emit absolutely zero evidence. Intelligence services have used sniffer aircraft to track nuclear activities for a long time.

    62. Re:Nuke Plants More Dense by Col+Bat+Guano · · Score: 1
      Your still waisting electricity to post on slashdot.

      ...and that's not hip!

    63. Re:Nuke Plants More Dense by Waffle+Iron · · Score: 1

      One carefully controlled nuclear reactor could probably supply all medical and other isotope needs for mankind.

      all it'd do is remove a supposed smoke screen which evidently failed to work for Iran.

      The smokescreen has not failed to work. Iran continues its activities with the "excuse" that it's working on nuclear power. There is no evidence that they are going to stop before they succeed.

      Even if everyone closed their reactors down, what's to stop a rogue nation building one?

      When you detect one, you destroy it, since unlike the current situation, there would be no possible excuse to have it.

      Note the difference: Israel destroyed Syria's reactor, and nobody cared because nobody thinks that Syria was working on a valid nuclear power program. Iran, OTOH, has convinced a lot of people, including a few powerful trading partners, that it just might be working on a valid nuclear power program, so destroying it is currently politically infeasible. That means that Iran will probably have nuclear weapons within a few years.

    64. Re:Nuke Plants More Dense by mpeskett · · Score: 1

      There's a lot of miles of motorway in the world that are already as ugly as they're going to get, we could use the land alongside there for solar/wind without anyone having to complain about it ruining the view.

      Might be some problems with vehicle pollution griming up the solar panels... but of course that won't be a problem once everyone's driving an electric car

    65. Re:Nuke Plants More Dense by StarfishOne · · Score: 1

      First of all: I completely understand your point.

      I would like to say though that I really think these large solar plants are awesome.

      Why?

      If the whole market/price/demand/mass producing thing works, I'd think that huge solar plants like these can ultimately help to make the price for solar panels to be placed on the roofs of our own houses go down. And those panels can help to make specifically your own usage meter turn backwards. :D

      Mass produce those panels please! The cheaper they are, the sooner you have your return on investment.

    66. Re:Nuke Plants More Dense by Dasher42 · · Score: 2, Interesting

      You know, especially after seeing the recent opposition to solar farms based on "altering desert ecosystems", I'm convinced that the oil industry will put on an environmental face when convenient. None of the environmental groups I've participated in were anything but appalled by that stonewalling of solar power. There is no monolothic environmentalist group to have a fallacy; rather, there's shared concern from many groups for the state of the earth, and the faux-green capitalist crap trying to cash in on it.

    67. Re:Nuke Plants More Dense by dhj · · Score: 1

      I'd have to agree with you that most of those arguments are fallacious and do not consider pollution improvements of one technology over the other. Except for the case of hydroelectric power. While there have been improvements to create lower impact dams, the argument against hydroelectric power isn't simply one of "aww... poor little salmon". Its the fact that once dammed the entire river recosystem that existed is essentially destroyed. As developed in the past, hydroelectric dams have been some of the most ecologically damaging power sources available, turning entire rivers into dry riverbeds. Fortunately power companies are becoming more considerate of these ecosystems and are now releasing more water from the dams than they have in the past to keep rivers viable. However most dams built in the past and cheap high-impact dams built today are terribly destructive to the plants and animals in and *around* the rivers that are dammed (not just salmon). There is a lot of hydroelectric power available here in the southeast, but when you purchase "renewable energy" for a premium here Southern Company does NOT provide that power from hydroelectric dams. Instead they provide switchgrass burning in coal plants (quickly sequestered and quickly released CO2). The reason for this is most people are keenly aware of the damage hydroelectric dams cause to the natural ecosystem not to mention moral issues of robbing clean water availability from downstream locations. So I am generally for prius, nuclear, solar, microwave (however much a pipedream that currently is), wind, etc. The waste from those energy sources can be mitigated and stored properly. It is simply not possible to "properly store" the destruction of a river ecosystem. There have been lower impact hydroelectric systems more recently developed, which are a great improvement and candidates for replacement of existing ageing hydroelectric systems. Still, they are far from mainstream and continue to give electric companies too much power over the ecosystem and drinking water availability in those watersheds.

      --David

    68. Re:Nuke Plants More Dense by budgenator · · Score: 1

      the part you missed was at the bottom of the page, they are making antennas that absorb thermal Infrared radiation, when they get a rectifer working we're talking taking the waste heat from the turbine and instead of going up the cooling tower converting directly to DC electricity

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    69. Re:Nuke Plants More Dense by gerf · · Score: 1

      That's friggin' awesome! I doubt it'd work as well away from big lakes, or in areas where the ground leaks too much.

    70. Re:Nuke Plants More Dense by Anspen · · Score: 2, Interesting
      First of all, that kind of load balancing only comes into play if solar makes up more than half the generating power. By far the most energy is used during business hours. Load balancing doesn't have to be a major issue until the renewable share is much higher. Nuclear and coal power station have quite long lead times for changing their output as well and need to be balanced.

      The UK shows how much load balancing can be done: because millions of housholds put on electric waterheaters after the end of the most popular soap the have a 2000 MW spike every weekday. And they are able to compensate for it by using gravity reservoirs on the other side of the island.

    71. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      Well, lets not forget Chernobyl. That spewed radiation all over earth. There is a risk if nuclear is not done correctly.

      Build the plant but lets make sure its not a graphite core reactor. Heavy water reactor is ok.

      Store it all in one place: Yucca Mountain.

    72. Re:Nuke Plants More Dense by Detritus · · Score: 2, Informative

      Get yourself a good chemistry/physics reference book and look up the isotopes of plutonium and the other radioactive elements. If it's "hot", it has a relative short half-life. Contrary to popular belief and anti-nuke propaganda, plutonium is not the most toxic substance on Earth. It's nasty stuff, but so are many other elements and compounds. If you want something that will give you nightmares, check out dimethylmercury. It makes plutonium look like health food.

      --
      Mea navis aericumbens anguillis abundat
    73. Re:Nuke Plants More Dense by Smallpond · · Score: 1

      Also the cost of waste disposal is impossible to calculate, since even after nearly 50 years of nuclear plant operation there is no consensus on how to do it.

    74. Re:Nuke Plants More Dense by ucblockhead · · Score: 1

      Solar power makes most sense in places like people's roofs, where you obviously can't put a nuclear power plant. It is not hard to put enough panels on the average detached to handle the power needs of the residents.

      --
      The cake is a pie
    75. Re:Nuke Plants More Dense by knet99 · · Score: 1

      If you have enough water power I imagine you can use it as a "battery". You use
      water power during the night, and during the day you produce more solar power
      than you need and direct the waste power to pump up the water again to the
      reservoirs/dams. I.e. you use water power to even out the irregular power pattern
      of wind and solar energy. Water power has the advantage of very short switch time
      between different power levels.

    76. Re:Nuke Plants More Dense by zekt · · Score: 1

      Yep, but here's the size of the hole you make to fuel it.

      http://www.stockinterview.com/News/03092007/Ranger-1.gif

      (Ranger uranium mine in Australia, one of many holes we have this size).

      --
      In my next incarnation, I hope to come back as a code monkey.
    77. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      Um problem with the recycling process is that it produces nuclear material that can be used to make nuclear weaponry (The reason that the US is up in arms with Iranâ(TM)s nuclear program)

    78. Re:Nuke Plants More Dense by lseltzer · · Score: 1

      I haven't seen anyone saying that we are going to go to 100% renewable resources. Those seem to be the strawmen that are always trotted out in these discussions.

      How about Al Gore and his groupies?

      I'm going to issue a strategic challenge that the United States of America set a goal of getting 100 percent of our electricity from renewable resources and carbon-constrained fuels within 10 years

    79. Re:Nuke Plants More Dense by bill_mcgonigle · · Score: 1

      Besides, the biggest problem facing the US is power transmission. If we had that down we could situate nuke plants where people didn't care or would see them.

      This is partially solved by density. The main line into NYC is now superconducting. There's enough power to make the refrigeration costs worthwhile.

      Perhaps if you had a superconducting 'pipe' from South Dakota to California carrying a hundred MegaWatts it'd be worth cooling. I haven't run the math.

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    80. Re:Nuke Plants More Dense by camken · · Score: 1

      can i have some pie too?

      --
      Moo.
    81. Re:Nuke Plants More Dense by noidentity · · Score: 1

      The environmentalist is just looking for a perfect technology to replace our current real technologies. Why go through the trouble replacing it if it's not absolutely perfect?

    82. Re:Nuke Plants More Dense by magus_melchior · · Score: 1

      While it is disingenuous to ignore the demerits of one side to discredit the other, the fallacy you're looking for is probably "poisoning the well". But dismissing the demerits of both sides won't do, either: for solar, we need better processes to extract silicon and doping, and more sustainable materials and processes for its supporting structures and lenses. Nuclear still faces the same disposal and mining problems if politics or economics favor unsustainable methods and reactors. Someone already mentioned the destructive effects of irresponsibly constructed hydro dams.

      All great advances come at a cost. The challenge to us is to find a way to mitigate, minimize, or eliminate that cost.

      --
      "We are Microsoft. You shall be assimilated. Competition is futile."
    83. Re:Nuke Plants More Dense by HazE_nMe · · Score: 1

      But how could you place a nuclear power plant in a desert without a river to cool it?

      Perhaps you could use the river of treated sewer waste from a nearby city?
      http://en.wikipedia.org/wiki/Palo_Verde_Nuclear_Generating_Station

    84. Re:Nuke Plants More Dense by DannyO152 · · Score: 1

      Apparently people misunderstood my language: I think storage of waste is a serious and peculiar problem and should not be overlooked while positive arguments related to current costs and current environmental advantages are made and weighed. Since I've been watching this debate for thirty years, it seems to me that advocates have consistently understated costs and have overlooked liability limitations established by law. Water requirements for a plant tend to be ignored and out here in the West water has been a problem that isn't that far from becoming a crisis.

      I wouldn't have mentioned anything but a story about a solar power facility in SLO is met quickly with a snarky comment about how a nuclear facility would have been smaller. And I'm the one overlooking salient points in the debate by mentioning waste? I repeat, there is a nuclear power plant in San Luis Obispo. I presume that when PG&E was siting it in the late 60s, early 70s, Diablo Canyon was the best location between San Francisco and Point Concepcion. SLO County has a lot of open land as well. As I further think about it, the argument for nuclear power is not diminished by putting other generating sources on line.

    85. Re:Nuke Plants More Dense by Leebert · · Score: 1

      Awesome, but what's more awesome is when these things go wrong

    86. Re:Nuke Plants More Dense by dave562 · · Score: 1
      Al Gore is pushing an agenda that he and his supporters/friends are vested in profitting from. Of course he wants the United States to be 100% on renewable resources. If the CEO of Exxon/Mobil came out and said, "I think America should be 100% dependent on petroleum." would it be a real surprise? If Bill Gates said that every IT department in the world should run Windows and Exchange would it be a surprise?

      People are going to champion whatever they see to be in their best interest. Welcome to Reality 101. As a large portion of the /. crowd has mentioned, we are one heck of a long way of getting all of our power from renewable resources. There is a big doubt about whether such things could ever be feasible.

    87. Re:Nuke Plants More Dense by SanguineV · · Score: 1

      AFAIK most nuclear power plants have a closed cooling cycle that may also be radioactive. This exchanges heat with another external cycle that is shielded from radiation and interacts with the environment.

      To compare to your car analogy, the closed cycle is the water cooling system and the open cycle is the air that flows through the radiator(s) (and other hot bits) to cool them. Nuclear plants produce far more heat and air is not a great heat conductor, so instead they use water. Usually a nearby river makes a good source of water that can absorb a lot of heat (partly due to the constant supply of fresh cold(er) water).

      It would be nice to completely thermally isolate a nuclear power plant and not need cooling (so they can be located in deserts etc.), but there is too much heat produced to do so easily (for now?).

    88. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      A nuclear plant could produce twice that on about ten acres.

      A nuclear power plant could probably produce 6 times as much on ten acres since the solar power is only efficient during about an 8 hour period of the day. Of course when its cloudy, the productivity will be even less. The electricity from the solar power facility is also going to cost more than three times as much as the average cost of electricity from a nuclear power plant.

      Fortunately, California generates and imports a lot of nuclear power that should help to mitigate the high price of this solar facility.

      Marcel F. Williams

    89. Re:Nuke Plants More Dense by KGIII · · Score: 1

      The fuel to make 'em was captured from free-range chicken droppings so it's all good.

      --
      "So long and thanks for all the fish."
    90. Re:Nuke Plants More Dense by KGIII · · Score: 1

      I forget which author it was but it was one of the big three or four who postulated that we could have homes, even cars, running on tiny (safe) reactors that relied on the nearly spent rods from the large reactors and that they'd be sealed and we'd never have to touch them but would get nearly unlimited small power from them for heating the home or powering a vehicle.

      --
      "So long and thanks for all the fish."
    91. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      In my ideal world, we'd use nuclear and wind for baseload, with solar, biomass and gas for peaking power. But, hey, I'm not in charge.

      I think that's a great idea; there's no sense in putting all one's eggs in a few baskets. While nuclear is a good choice and has come along way with breeder reactors and all, it's no excuse to pursue other sources of energy for peak load, as you said, as well as for redundancy.

      I would include solar thermal as being useful for baseload as well.

    92. Re:Nuke Plants More Dense by Free+the+Cowards · · Score: 4, Informative

      Plutonium is not very radioactive. Its activity is fairly low. The half life of Plutonium 239 is approximately 24,100 years, meaning that any given atom probably lasts a very long time before decaying. In turn this means that the number of atoms decaying at any given moment is quite small. Furthermore, Plutonium decays in the form of alpha particles, which don't penetrate at all. Alpha particles are stopped by human skin, still in the dead bits, and thus are completely harmless when external to the human body. You can hold a big lump of Plutonium in your hand all day and not have the slightest ill effect. It only becomes dangerous when ingested, and even then it tends not to be absorbed by the body except in certain forms, for example fine particles breathed into the lungs.

      As for toxicity, it's pretty bad, but not nearly as evil as it's made out to be. I'd certainly rather have a little more Plutonium around than live with the many tons of mercury per year emitted straight into the atmosphere by the average coal plant, given the choice between the two.

      Lastly, consider that several tons of Plutonium have been released straight into the atmosphere as a result of nuclear bomb testing, and there hasn't been any real environmental harm from this. It's certainly no good thing, but on the other hand this is vastly worse than what happens with nuclear waste, which is safely stored rather than being vaporized and released into the air.

      --
      If you mod me Overrated, you are admitting that you have no penis.
    93. Re:Nuke Plants More Dense by YttriumOxide · · Score: 1

      Hmmm... excuse me, but not all "hippie greenies" hate Nuclear power. I quite happily consider myself to fall in to this group of people that are concerned enough about the environment to personally make steps towards improving things, and I'm strongly in favour of replacing bad systems with better ones. I don't think Nuke plants are the best solution long term, but they're millions of times better than coal, and, as the GP points out, significantly smaller (less burden on the local environment) than solar.

      Here's 3 examples of places:
      I spent 6 years in Sydney, Australia - a city of 4 million people powered entirely from coal. Not only that, but Australia's coal is particular rich in radioactive materials due to the places it's mined, so it spews even more radioactive material in to our atmosphere than a nuke plant would generate in a neat little package over the same amount of time.
      My homeland, New Zealand, has a strict anti-nuclear policy... no nuclear weapons or power of any kind (you're not even allowed to sail a nuclear powered vessel in to NZ waters). For New Zealand, I strongly support this approach and agree with it, because New Zealand is already strongly ahead in alternative power sources (lots of hydro-electric for example) and doing pretty well. I am however realistic enough to know that this can't work everywhere for everyone due to the lay of the land, the amount of power needed and so on. Nuke makes a very good "second best" option.
      I currently live in Germany, where they're going to shut down all the nuclear plants. The plan is to replace them with better things, but so far, I haven't seen much in the way of good ideas on how to replace all the power needs with better things. I am quite concerned they may switch to coal. Hopefully if they're unable to meet the demands with alternatives (e.g. Wind (which there's already a fair amount of here), solar, tidal, hydro-electric and others), they will eventually decide to keep the nuclear plants running rather than turn on any coal burners, but at this stage, I'm not hopeful.

      You and the GP are right - nukes make sense right now, and are in fact a good "green" alternative to the fossil fuel options.

      Speaking to mods in general: All of that said, while I agree with parent, and think he deserves the "insightful" and "informative" mods, he ALSO deserves "flamebait", because the post really is worded in such a way as to incite people to flame him - the very definition of "flamebait". (he did NOT deserve the "troll" mod - but some people seem to be unable to tell the difference between "troll" and "flamebait" it seems)

      --
      My book about LSD and Self-Discovery
      Also on facebook as: DroppingAcidDaleBewan
    94. Re:Nuke Plants More Dense by YttriumOxide · · Score: 1

      a goal of getting 100 percent of our electricity from renewable resources and carbon-constrained fuels within 10 years

      Read the part in bold again...

      If he'd omitted that to say ONLY from renewable resources, it'd be a joke. As it is, I think it sounds reasonable.

      By the way, I would define a "carbon-constrained fuel" as any fuel that puts out either a very low amount of carbon, or none at all. Nuclear plants fall in to this category in my eyes. (I don't know if Al Gore would agree with that, nor do I care actually...)

      --
      My book about LSD and Self-Discovery
      Also on facebook as: DroppingAcidDaleBewan
    95. Re:Nuke Plants More Dense by Maxo-Texas · · Score: 2, Interesting

      200 years ago most of the US was thinly settled wilderness.

      Care to accurately project what the US will be like in 200 years?

      --
      She was like chocolate when she drank... semi-sweet at first and then increasingly bitter.
    96. Re:Nuke Plants More Dense by coolsnowmen · · Score: 1

      ...If nuclear power produces that much more power, in a more confined area, for less money, and produces negligible amounts of pollution whats the problem?

      That is a big 'if'. It has been 2 years since I was reading about it, but then, the problem with nuclear power was what do with the used radioactive(bad for the environment) fuel.

      And the parent was rightly mod'ed troll, the article is about solar panels and he basically sneared "nuclear is better." While what he said is accurate, there is a LOT more to energy production than energy density per square meter. For instance, with enough advancement in solar panels we have the ability to distribute our power generation, and by ALL accounts, the transmission of electricity is a huge headache and power loss due to the fact that our transmission lines are not super conductors. And because noone wants a nuclear powerplant in their back yard, this centralized power generation will has huge transmission losses.

      He wasn't insightful, that is a "NOSHIT-SHERLOCK"

    97. Re:Nuke Plants More Dense by YttriumOxide · · Score: 1

      You have a nuke plant in a place called "Diablo Canyon"? Isn't that just sort of ASKING for trouble?

      --
      My book about LSD and Self-Discovery
      Also on facebook as: DroppingAcidDaleBewan
    98. Re:Nuke Plants More Dense by bronney · · Score: 1

      Does that Warrior have 'Norris' as a last name?

    99. Re:Nuke Plants More Dense by im_thatoneguy · · Score: 1

      By building pebble bed reactors.

      They cool temselves using liquid helium or CO2. They can't meltdown and they don't require a river.

      WIKI Link

    100. Re:Nuke Plants More Dense by Atario · · Score: 3, Informative
      --
      "A great democracy must be progressive or it will soon cease to be a great democracy." --Theodore Roosevelt
    101. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      A nuclear plant could produce twice that on about ten acres.

      The nuclear plant might take 10 acres, but what about the mine, processing facilities, waste storage facilities, transport network for moving the ore about... Solar towers aren't as space inefficient as people think, it's just the land usage is all in one place.

    102. Re:Nuke Plants More Dense by frsmith · · Score: 1

      Warning, some common sense here!

      --
      It Seems I've developed an aversion to proprietary software
    103. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      Where would you rather live, next to a solar panel farm or say....Chernobyl?

    104. Re:Nuke Plants More Dense by Deus.1.01 · · Score: 2, Insightful

      "Iran signed the NPA; they were completely free to use nuclear power. The only problem is that they allegedly started their nuclear program without informing the IAEA, which means they broke the terms they agreed to in the NPA." They have not broken the NPA, the broke some of the aditional safety protocols agreed to. After that they have signed additional safty protocols and the AIEA have flooded with reports on the compliance of Iran following suit with their will, ElBaradei is convinced no nuclear weapons is being worked on so is USA's NIA. "Their actions only make sense if nuclear weapons are their goal. (Also they are refusing pre-enriched uranium from Russia; why? The only logical reason is that they want to be able to enrich to weapons grade, and Russia would only sell them reactor grade.)" Or simply put, they want to be self-sufficient, i mean, its not that Russia is reliable with their energy fuel.

      --
      My -1 Troll is actually a +1 funny. And my -1 flame is actually a +1 insightfull.
    105. Re:Nuke Plants More Dense by Deus.1.01 · · Score: 1

      We should rather do something about the enviromentalist strawman.

      --
      My -1 Troll is actually a +1 funny. And my -1 flame is actually a +1 insightfull.
    106. Re:Nuke Plants More Dense by lseltzer · · Score: 1

      Yeah but he's hardly nobody and he's not a strawman.

      And the idea that we could do that in 10 years is absurd.

    107. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      If you are accounting for that, account for the silicon extraction and production as well. Not to mention the toxic chemicals used in semiconductor manufacturing processes.

      As far as environmental aspects of energy procuction are concerned, I very much expect each option to be evaluated 'from cradle to grave', and I understand uranium mining to be more energy intensive and produce nastier waste than silicon mining.

      Don't get me wrong, I'm pro-nuclear myself. But we still need to look at the whole picture rather than staring at a narrow window of it.

      Does anybody know of sites that compare the environmental impact of the entire processes of different energy production technologies?

    108. Re:Nuke Plants More Dense by QuantumPion · · Score: 1

      Nuclear (uranium and plutonium) energy sources are scarce and hard to get to. One of the big reasons we're in Afghanistan is because they have huge uranium deposits there.

      Actually Uranium is quite common in the earth's crust, and is even in significant quantities in the ocean. The two largest producers of Uranium are Australia and Canada. As far as I know, there is no Uranium mining in Afghanistan. Maybe you were thinking of Kazakhstan, which is the third largest producer.

    109. Re:Nuke Plants More Dense by aevans · · Score: 1

      New Zealand refusing to use nuclear energy is a lot like Greenland forbidding Freon-based A/C units in buildings over 50 stories high made out of carbon fiber with artificial saphhire windows. They don't need it, and couldn't build it if they did. There was a fox who didn't like grapes...

    110. Re:Nuke Plants More Dense by QuantumPion · · Score: 1

      But how could you place a nuclear power plant in a desert without a river to cool it?

      There are simply only few places where a power plant can be built at all, even if no humans lived everywhere and had something against it.

      Actually they can be built pretty much anywhere. Right next to a big city, on the ocean, ON the ocean, on a river, or yes, even in the middle of the desert.

    111. Re:Nuke Plants More Dense by FroMan · · Score: 1

      No, but Philip J. Fry manages to become a billionaire by saving $.93.

      --
      Norris/Palin 2012
      Fact: We deserve leaders who can kick your ass and field dress your carcass.
    112. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      The solar plants mentioned come out to 24.7W/sq m. That's incredibly low given the oft stated 1500W/sq m of sunlight that hits the Earth.

    113. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      Please don't spread misinformation.

      We don't know how to reprocess to obtain a 90% volume reduction at an large scales or short times.

      Read the NAS report.

      http://www8.nationalacademies.org/onpinews/newsitem.aspx?RecordID=11998

      Ultimately, we could probably make that work. But it's not something we can just "do".

    114. Re:Nuke Plants More Dense by Firethorn · · Score: 2, Interesting

      Care to accurately project what the US will be like in 200 years?

      While the US wasn't settled heavily 200 years ago, Europe was - and they have plenty of records, businesses, and buildings that are over 200 years old.

      Heck, we've dug up graveyards and garbage dumps in the thousands of years old.

      I'm just saying, for the pollution caused, properly recycled nuclear waste, or breeder reactors, end up producing 10X the power for a given amount of waste that stays radioactive for a much shorter period of time.

      Given that - suddenly Yucca mountain makes a lot more sense. Given that, a nuclear plant can store a couple centuries of waste, minimum, on site vs 20 in it's pool.

      --
      I don't read AC A human right
    115. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      A nuclear plant could produce twice that on about ten acres.

      Nuclear material is a finite resource. The wind is not, and the sun is practically one (for all intents and purposes) since if it is gone, we are all dead anyway.

      I think nuclear power is great, but why not use it to replace coal or natural gas plants instead of solar and wind?

    116. Re:Nuke Plants More Dense by MJMullinII · · Score: 1

      200 years ago most of the US was thinly settled wilderness.

      Care to accurately project what the US will be like in 200 years?

      We make all kinds of nasty stuff, some that lasts a lot longer than 200 years.

      Why pick on Nuclear, something that AT LEAST you get something good out of?

      --
      "Don't be a martyr -- BE THE ONE WHO GOT AWAY!"
    117. Re:Nuke Plants More Dense by QuoteMstr · · Score: 1

      It remains feasible. Even without breeder reactors, however, nuclear power is a viable solution to our energy problems.

    118. Re:Nuke Plants More Dense by Maxo-Texas · · Score: 1

      I'm not picking on nuclear. I'm picking on the idea of passing the bill for our current power production on to our grandkids.

      You are correct and a reasonable amount of nuclear production (say 10% of the power mix) makes a good balance between risk/reward. But going heavily nuclear and producing a lot of waste seems foolhardy to me.

      The US will change *A LOT* in 200 years. Who knows that YUCCA mountain won't turn out to have been the perfect spot for an interdimensional gateway or zero point energy production facility except it's polluted all to hell with nuclear waste that leaked from containers that turned out to only last 170 years.

      --
      She was like chocolate when she drank... semi-sweet at first and then increasingly bitter.
    119. Re:Nuke Plants More Dense by YttriumOxide · · Score: 1

      "Don't need it", I'll agree with. "Couldn't build it", I completely DISagree with - New Zealand is a high-tech first-world country. It certainly has a stereotypical image in the eyes of the rest of the world as being a little "rural", but I assure you that if NZ really wanted a nuclear power plant, it's WELL within their technical and financial capabilities.

      --
      My book about LSD and Self-Discovery
      Also on facebook as: DroppingAcidDaleBewan
    120. Re:Nuke Plants More Dense by gormanw · · Score: 1

      Amen to that! Besides, how much is this costing the US taxpayer in subsidies? I read a great article about nuclear and subsidies called "Nuclear, Silver Bullet or Money Pit" at http://economicefficiency.blogspot.com/2008/07/nuclear-silver-bullet-or-money-pit.html It laid out the costs and what companies are building new plants, and which aren't.

    121. Re:Nuke Plants More Dense by MJMullinII · · Score: 1

      I'm not picking on nuclear. I'm picking on the idea of passing the bill for our current power production on to our grandkids.

      You are correct and a reasonable amount of nuclear production (say 10% of the power mix) makes a good balance between risk/reward. But going heavily nuclear and producing a lot of waste seems foolhardy to me.

      The US will change *A LOT* in 200 years. Who knows that YUCCA mountain won't turn out to have been the perfect spot for an interdimensional gateway or zero point energy production facility except it's polluted all to hell with nuclear waste that leaked from containers that turned out to only last 170 years.

      Our Grankids are going to have TONS of debt to pay REGARDLESS of what we do. I'm afraid that is the nature of life.

      There seems to be a new fad now days of looking planning SO FAR into the future THAT WE DON'T DO ANYTHING TODAY.

      This type of attitude would have prevented great projects like the Hoover Damn or the Panama Canal from even being ATTEMPTED.

      It makes me sad that progress is slowly being stymied because people are so afraid of making a mistake THAT THEY MAKE NO SOLUTIONS.

      --
      "Don't be a martyr -- BE THE ONE WHO GOT AWAY!"
    122. Re:Nuke Plants More Dense by jfmiller · · Score: 1

      San Luis Obispo County Has one of those already though. Until it can properly dispose of 20 years of spent fuel, let's not build another.

      --
      Strive to make your client happy, not necessarly give them what they ask for
    123. Re:Nuke Plants More Dense by Anonymous Coward · · Score: 0

      I really don't understand why people hate wind power. Is it because its a 1000 year old technology? Is it because its safe, simple and cheap?

      And come on, dangerous to birds? Do you know how hard it is to kill birds??? Its the most successful species ever, adapting to man no matter what we do. Anyway, skyscrapers kill more birds than windmills and they're not banning those anytime soon.

    124. Re:Nuke Plants More Dense by Maxo-Texas · · Score: 2, Interesting

      I agree with you. Consideration of risk and liability are preventing a lot of progress.

      For example- we could easily be on mars and on the moon if we were willing to take the losses that the american settlers did (50%? 60%?) And even knowing the risks, people would line up to be settlers on mars and the moon if you would just let them.

      We are killing the space program with an insistance on zero risk.

      However....
      While I'm willing to take enormous risks personally and let others take big risks - I'm not willing for corporations to make a fortune today at the cost of ruining our country / world for the next 200, 2000, or more years. We underestimate just how horrible the downside of nuclear risk can be. Just like we underestimated how bad the downside risk of subprime credit could be.

      --
      She was like chocolate when she drank... semi-sweet at first and then increasingly bitter.
    125. Re:Nuke Plants More Dense by hey! · · Score: 1

      Well, sure, but in case you haven't noticed, acreage isn't the constraining factor here. Last time I checked, there was a lot of land in the US. A more relevant question is the size of US uranium reserves compared to its energy needs.

      Nuclear is a discussion we ought to be having, but it doesn't mean that we shouldn't develop new technologies. One advantage I see to developing solar is that the future price of fuel is stable. If you built a nuclear plant, at some point you would be refueling it, and it is possible that in a world that has substantially all its eggs in the nuclear basket, that price might be quite a bit different.

      I'm not anti-nuclear. I don't think we'll be able to avoid nuclear as part of the mix in the next fifty years, so we might as well get on with developing new and better nuclear technology. But I don't think we should look on nuclear power as the solution. World uranium reserves are finite too, and a lot of them may be located in countries we don't like. And since we're generating electricity, potentially any source of electricity can be an equal part of the energy mix That's not as true when people run their cars on gasoline and heat their homes with natural gas or oil.

      --
      Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
    126. Re:Nuke Plants More Dense by ivan256 · · Score: 1

      The point in renewable technologies is that any additional power that we can get outside of the [nuclear] fuel box is a good thing.

      Is it? That doesn't seem to be so clear outside of that gut-feeling/conventional-wisdom mindset. Is preventing sunlight from reaching the ground for hundreds of acres (now, and tens of thousands in the future) worse than running some nuclear power plants?

      I question your premise.

    127. Re:Nuke Plants More Dense by hey! · · Score: 1

      Well, it's a myth that environmentalists destroyed the nuclear industry, although it's perfectly true they didn't do it any favors.

      The problem was that nuclear wasn't cheap, in a world with cheap oil, natural gas and coal. A lot of energy technologies died when oil went from $78 to $27 per bbl in the 1980s and stayed around there.

      Even granting the role of environmental criticism in reducing the profitability of nuclear power, the effect was at worst marginal.

      --
      Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
    128. Re:Nuke Plants More Dense by ivan256 · · Score: 1

      That's 'cause the bulk of the mining is coal to power the power plant used to generate the electricity used to purify it...

      First they "scoop up" some silica. (Yeah, 25% of the crust is Silicon, but it's really really hard for us to use the bulk of that which is trapped in Silicate minerals like quartz for this purpose.) Then they purify it in an oxygen free environment. Then they heat the crap out of it in the presence of carbon (coal, or charcoal) to covert the oxide form into Silicon and Carbon Dioxide. Then they heat the crap out of it again using the Czochralski process to form a useable crystal. Then they cut, polish, and chemically etch it before it can become a cell.

      I know. When you don't know how something works, but everybody tells you it's wonderful and easy and the solution to all our problems it can seem like they just "scoop some up"...

    129. Re:Nuke Plants More Dense by Remus+Shepherd · · Score: 1

      I would love to see solar and wind to become the only needed power source, but that isnt a reality.

      Why isn't it?

      These solar plants cover 12.5 square miles and deliver about 1/30,000th the world's energy consumption. At that efficiency, you could cover just 1/10th of the Sahara desert with solar plants and supply all the energy the world needs. It's also clear that solar energy has many advantages over other sources that are dirty and/or non-renewable.

      The big problems for us are distribution and storage of energy. But generation? We've got generation handled, and plants like these prove it.

      --
      Genocide Man -- Life is funny. Death is funnier. Mass murder can be hilarious.
    130. Re:Nuke Plants More Dense by Atario · · Score: 1

      Of course, since coal is the only thing you can use to get electricity.

      Let me ask you this, wise-ass.

      How many square miles of earth must be torn up to get a hundred pounds of uranium?

      How many square miles of earth must be torn up to get a hundred pounds of silicon?

      The difference will be measured in orders of magnitude.

      --
      "A great democracy must be progressive or it will soon cease to be a great democracy." --Theodore Roosevelt
    131. Re:Nuke Plants More Dense by QuoteMstr · · Score: 1

      As I've said before, the total volume of nuclear waste is minuscule; any long-lived waste is not very radioactive because of the way half-life works; we have no reason to believe Yucca Mountain is special; you conveniently ignore all the other toxic waste we're generating; etc.

      Your post displays the kind of ignorance that I loathe. It's not based on anything but hypotheticals and fear. Our best bet is to go for a mix on wind, hydroelectric, and nuclear, and nuclear is going to have to be a much larger portion of the mix than the 10% you pulled out of your hat: the first two options are geographically limited.

    132. Re:Nuke Plants More Dense by catprog · · Score: 1

      A nuclear plant could produce twice that on about ten acres.

      Is that including the mines?

      --
      My Transformation Website
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    133. Re:Nuke Plants More Dense by MrKaos · · Score: 1

      A nuclear plant could produce twice that on about ten acres.

      Chernobyl 2640 Square kilometres of farmland, 1900 sqkm of forest. How big would that solar array be?

      --
      My ism, it's full of beliefs.
    134. Re:Nuke Plants More Dense by gerf · · Score: 1

      I suppose I'm thinking super long term, when coal and oil are scarce, and most energy is from renewable sources. Just think, a large cloud-mass over the southwest could put us in a temporary energy crisis.

      I usually think so long term, I wonder where we'll be getting things like lubrication oils (large hydrocarbons are hard to come by), and I even calculated that if we fueled our cars with hydrogen, and lost 10% of that hydrogen to the atmosphere never to return, how long much water we would lose over the years compared to the volume of the oceans, and how the surface level would be affected. Anyway, it's going to be interesting to see.

    135. Re:Nuke Plants More Dense by haruchai · · Score: 1

        How much would it cost to produce that much power?
        It seems that nuclear plant construction has been
        skyrocketing for decades. At $5 BILLION for a single plant, how much would it cost to replace 50% of all coal-burning plants with nuclear and how long would it take to build them all?

        And, if we poured a fraction of what has been given to the nuclear industry over the decades into solar or alternative research, what could be accomplished?

      --
      Pain is merely failure leaving the body
    136. Re:Nuke Plants More Dense by mdfst13 · · Score: 1

      I doubt it'd work as well away from big lakes, or in areas where the ground leaks too much.

      You don't need an existing lake. You can build one if necessary. Further, you can build both reservoirs out of materials that don't leak. I would think that the bigger problem is that you need the two reservoirs to be separated in height. I.e. you need hills. Meanwhile, many of the best places for wind generation are flat. Lakes are cheaper to build than mountains. Further, the reservoirs can be used as a water supply during droughts, etc.

      Another alternative is to pump compressed air into caverns.

      You may also need this kind of stuff for nuclear. The problem is that nuclear produces a relatively steady stream of power, while usage is bursty. Thus, use of natural gas and oil to provide on demand source to balance supply to demand. However, if we go with Pickens plan, we will stop using oil for this, and move the natural gas to use in powering automobiles. There are some biofuel alternatives (in particular, using landfill gas or other waste based generation works nicely with electrical generation), but it may be that this will not be enough.

    137. Re:Nuke Plants More Dense by ivan256 · · Score: 1

      Who's the wise ass?

      For starters, square miles of earth is a poor choice of units for either. The answer in both cases is "less than one".

      Depending on how you obtain your uranium (seawater extraction, for example, which should be economically viable given a 50% increase in the price of uranium), you're right... You have to tear up orders of magnitude less ground to obtain uranium than silicon...

      But it's still a silly comparison, since you need hundreds of times as much purified silicon to generate the energy you would get from your hundred pounds of uranium. The balance only shifts the other way after incredibly long periods of time using the silicon for photovoltaics.

      Plus you missed most of the point of my comment. You don't just "scoop up" silicon. You need high purity silica, which is mined in a limited number of places where material of sufficient purity is available. In an open pit. And the dust makes silica mining every bit as dangerous for the workers as uranium mining. (Look up Silicosis).

  2. They need to generate 50% more power by Anonymous Coward · · Score: 0, Funny

    If they intend to travel in time, they'll need 1.21 gigawatts.

    1. Re:They need to generate 50% more power by Anonymous Coward · · Score: 0

      Don't you mean 1.21 jiggawatts?

    2. Re:They need to generate 50% more power by Anonymous Coward · · Score: 0

      Or perhaps 1.21 jigaboos? Detroit will be leading the country in renewable power production!

    3. Re:They need to generate 50% more power by hcdejong · · Score: 4, Funny

      I'd think moving the entire plant at 88 mph would be the bigger engineering challenge.

    4. Re:They need to generate 50% more power by Anonymous Coward · · Score: 0

      Well, the Earth rotates at about 1000 mph, and the Earth travels around the Sun at about 67,000 mph, so it should be covered.

    5. Re:They need to generate 50% more power by ksd1337 · · Score: 1

      Ha. I just use my Mr. Fusion to generate the needed power, and then sit back and play Duke Nukem Forever all day.

    6. Re:They need to generate 50% more power by Sabathius · · Score: 1

      Will you see some "serious shit"?

  3. 800 MW? by Anonymous Coward · · Score: 2, Informative

    12.5 square miles of silicon, and it still generates less than a single average sized block of a nuclear power plant (~1000 MW).

    1. Re:800 MW? by jcr · · Score: 3, Interesting

      Indeed. I'm convinced that if big solar plants are ever going to be worth building, they'll have to be based on a thermal approach rather than PV technology.

      The molten salt system looks quite promising from the standpoint of solving the time of generation/time of use problem.

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    2. Re:800 MW? by v1 · · Score: 1

      is that counting all the space taken for the railways to bring in and store the coal? (or for the mine for the coal)

      --
      I work for the Department of Redundancy Department.
    3. Re:800 MW? by Ironsides · · Score: 2, Informative
      OP:

      12.5 square miles of silicon, and it still generates less than a single average sized block of a nuclear power plant (~1000 MW).

      You:

      is that counting all the space taken for the railways to bring in and store the coal? (or for the mine for the coal)

      Me: Since when does Nuclear or Solar require Coal?

      --
      Fly me to the moon Let me sing among those stars Let me see what spring is like On jupiter and mars
    4. Re:800 MW? by Anonymous Coward · · Score: 0

      is that counting all the space taken for the railways to bring in and store the coal? (or for the mine for the coal)

      Uh ... nuclear plants don't burn coal.

    5. Re:800 MW? by Hektor_Troy · · Score: 1

      Me: Since when does Nuclear or Solar require Coal?

      Shhh - don't tell anyone, but it's actually Santa's secret storage location for the coal he puts in bad children's stockings.

      --
      We do not live in the 21st century. We live in the 20 second century.
    6. Re:800 MW? by philspear · · Score: 1

      Indeed. I'm convinced that if big solar plants are ever going to be worth building, they'll have to be based on a thermal approach rather than PV technology.

      I don't think thermal is the only way you can build solar plants. For proof of concept, I point to the fact that most life on earth gets it's energy from the sun without using thermal approaches.

    7. Re:800 MW? by TheRaven64 · · Score: 1

      But it doesn't consume fuel. The interesting question is how long the plant lasts and how much energy it costs to maintain. A nuclear plant may be smaller, but it's a block packed full of incredibly complex technology. A solar plant is more spread out, but is often simpler technology, and doesn't consume uranium. In areas where there sunlight is abundant, it makes sense.

      --
      I am TheRaven on Soylent News
  4. Perspective by nasor · · Score: 4, Insightful

    In case anyone wants some perspective on that 550 MW figure, the US uses about 430 GW of electricity on average.

    1. Re:Perspective by cathector · · Score: 4, Insightful

      i love math..
      so let's say the power-to-area ratio is 500 MW to 12 square miles, and the usage is 500 GW. that's 0.1% of the nation's use per 12 square miles.
      so to meet say 100% of the nation's consumption, that would be.. 12,000 square miles, or an area about 110x110 miles.

    2. Re:Perspective by atamido · · Score: 1

      I love math too.

      Total land area in the US is about 3.5 million square miles. 12,000 sq miles is about 0.3% of the total land area of the US. That's not too bad, though energy consumption would probably be an order of magnitude higher by the time it was built. And I doubt we posses enough rare elements to build that many PV cells.

      I'm curious what kind of impact on temperature an array like that would have. Converting the light into electricity instead of it just becoming thermal, and not using steam based power plants.

    3. Re:Perspective by QuoteMstr · · Score: 1

      I imagine most of that electricity would come out as heat one way or another.

    4. Re:Perspective by atamido · · Score: 1

      In the end, yes. But assuming the 12,000 sq miles of cells were in one large group, what impact would there be in moving that electricity to another region? It is essentially electricity based heat transfer.

    5. Re:Perspective by cathector · · Score: 1

      > I'm curious what kind of impact on temperature an array like that would have.

      seems like a bonus.
      i've heard that black-roofed buildings and asphalt etc have a measurable effect on ambient temperature because they absorb the incoming light and convert it to heat instead of reflecting it, but i'm not sure i believe it.

      i find the recent developments in peltier-like technology pretty interesting. for example this recent article on Ohio State project, and possibly stirling engines to reclaim waste heat. for example, with installations like a coal or nuclear plant, where you have a lot of waste heat, run it through a bunch of those guys, or at least some stirling engines before dumping it!

    6. Re:Perspective by ucblockhead · · Score: 1

      So about 10% of the state of Nevada.

      --
      The cake is a pie
    7. Re:Perspective by nasor · · Score: 1

      That's in the middle of a cloudless day. You'll need to multiply that by at least 3 or 4 to account for things like clouds and nighttime.

    8. Re:Perspective by delt0r · · Score: 1

      And I doubt we posses enough rare elements to build that many PV cells.

      Err... what rare elements? Silicon oxide and the extremely small amounts of dopant's needed to make cells are very very common.

      --
      If information wants to be free, why does my internet connection cost so much?
  5. Hail? by Kid+Zero · · Score: 3, Funny

    That's gonna suck in the first hailstorm they have.

    1. Re:Hail? by Anonymous Coward · · Score: 0

      Don't worry. If anything bad happens, the U. S. taxpayers will bail them out. It will be declared a disaster and Uncle Sam will volunteer to foot the bill . . . . as always.

    2. Re:Hail? by rthille · · Score: 4, Informative

      Hail?

      No, coastal CA. The last time I remember hail was about 4 years ago. The pieces were less than 1cm. And that's living ~5 hours north of SLO County. When I lived 2 hours south of SLO (for 35 years), I remember hail maybe 3 times, all the same small pieces.

      --
      Awesome furniture, accessories and cabinetry in Santa Rosa, CA: http://humanity-home.com/
    3. Re:Hail? by krismon · · Score: 1

      experienced some hail a few years ago down in solvang (60 miles south), quarter inch to half inch sized pieces. right in the middle of the Solvang century bike ride.

      And.. we just had hail in Las Vegas last week in between 100+ degree days. That said, I'm sure the panels have been tested for inclement weather.

    4. Re:Hail? by black_lbi · · Score: 1

      How about other problems? Like cleaning the solar panels from dust and other debris which could significantly lower the power output?

    5. Re:Hail? by ahankinson · · Score: 1

      It's called "ongoing maintenance." You don't just build something and then walk away. Everything requires work to maintain.

    6. Re:Hail? by Anonymous Coward · · Score: 0

      PG&E executive reads black_lbi's post, then whacks his forehead repeatedly with his fist...

      "Oh crap! Crap! Crap!!! Why the hell didn't we think of this sooner? *DUST* Haha. DUST! It's so godamned simple, and I can't believe that not ONE SINGLE PERSON on this friggin $billion project thought of it before it was too late! Now how in the hell are we supposed to clean 12 square miles of solar cells? Jeez, this is never going to work. How did I get myself into this job anyway?"

      "We are so friggin HOSED! Crap!!!"

    7. Re:Hail? by Anonymous Coward · · Score: 0

      I've lived in San Luis Obispo for several years now and have seen hail once -- it was about the size of snow flakes and didn't even hurt while standing outside.

      In ten years I've seen lightning here a whole three times -- this area does not get any form of extreme weather.

    8. Re:Hail? by BigDaddyOttawa · · Score: 1, Informative

      Most panels are able to withstand hail stones of up to 1" in diameter , or more with a thin (0.188") acrylic cover sheet.

      The damage, if any, will likely just occur to the glass cover, which could possibly be replaced without replacing the whole panel.

      --
      Sig? SIG? We don't need no stinkin' sig!!!
    9. Re:Hail? by black_lbi · · Score: 1

      We're talking about 12 square miles of solar panels ... i was just wondering how are they going to clean them. Do they use something like a windscreen wiper?

    10. Re:Hail? by WK2 · · Score: 1

      I lived in San Luis Obispo County (Los Osos, SLO, Paso Robles) for 14 years. I don't recall any hail. Sunshine, rain, and fog, but no hail or snow. Pretty sure I would have noticed something like that.

      --
      Write your own Choose Your Own Adventure. http://www.freegameengines.org/gamebook-engine/
    11. Re:Hail? by KGIII · · Score: 1

      When I first thought of this it was TIC but, well, no...

      This is the United States. We've got convicts for that. Probably won't use them but we probably should.

      --
      "So long and thanks for all the fish."
    12. Re:Hail? by linguae · · Score: 1

      I'm a student at Cal Poly, San Luis Obispo. I do remember it hailing a few times in early 2006 on campus for about a minute or so. It hails occasionally, but rarely.

  6. 20%? by gsmb · · Score: 1

    20 percent in watt, 18 months? I'd like to see that!

  7. World's largest solar plant currently in Spain by Anonymous Coward · · Score: 0

    26MW. That pretty much proves scalability. The rest is just a matter of actually scaling up.

  8. Is photovoltaic really the best way to go? by SendBot · · Score: 4, Interesting

    I'm surprised that photovoltaic is more cost effective than solar thermal. Using fresnel lenses that focus on heat exchangers that double as turbines, it can be cheaper than coal. See here:
    http://www.celsias.com/article/utahs-solar-fired-furnace-power-california-less-co/

    1. Re:Is photovoltaic really the best way to go? by atamido · · Score: 1

      My guess is hooking up solar panels is simple so they can get it online faster and scale when/how they want.

    2. Re:Is photovoltaic really the best way to go? by TheRaven64 · · Score: 1

      Presumably they use lenses to focus onto smaller photovoltaic cells. The nice thing about PV is that once the first cell is deployed, you're online. You can incrementally improve the system by deploying more. I seem to recall a company in California getting the cost of PV cells down to a very low number and Google buying their entire first year's supply for their datacentres. Possibly they've ramped up production a bit now...

      --
      I am TheRaven on Soylent News
  9. I have a better idea. by BitterOldGUy · · Score: 2, Interesting

    As Rhone Resch, president of the Solar Energy Industry Association told me earlier this year: "If the investment tax credit is not renewed, it will disrupt this high-growth sector, impact tens of thousands of U.S. jobs and undermine advances in clean energy production."

    How about removing the tax credits for ALL forms of energy so we can have an undistorted idea of what the energy costs from each method, hmmmm?

    Oh wait, the oil industry won't like this, will they?

    When we use taxes to distort the markets for policy, the special moneyed interests ALWAYS get it so it benefits them and makes the intended result moot. Which means screwing over the folks who it was supposed to help in the first place.

    1. Re:I have a better idea. by Brandybuck · · Score: 1

      I love tax cuts and tax credits. But they need to be uniform, and not targeted at narrow interests, because they can distort the market when unevenly applied. The problem isn't that oil companies are getting tax breaks, it's that the tax structure is a kind of tariff on all other forms of energy.

      --
      Don't blame me, I didn't vote for either of them!
    2. Re:I have a better idea. by jcr · · Score: 1

      That's just one of the problems that arise from trying to use taxes as an instrument of policy. Government shouldn't be in the business of overriding the choices we make in the market for energy or any other goods or services.

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    3. Re:I have a better idea. by QuoteMstr · · Score: 1

      Good luck with your mercury-laced syphilis cure.

    4. Re:I have a better idea. by jcr · · Score: 1

      Excuse me? What does that have to do with tax policy?

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    5. Re:I have a better idea. by rthille · · Score: 3, Insightful

      Make the market efficient enough that the trillion or so spent on the Iraq war comes out of the oil company pockets, instead of adding to them, and I'll agree with you.

      When the industry/consumer actually pays _all_ the costs associated with the technology, then we can do away with taxes that favor one approach over another. Until then, I'm all for taxing polluting & non-renewable industries and giving tax-breaks to non-polluting & renewables.

      --
      Awesome furniture, accessories and cabinetry in Santa Rosa, CA: http://humanity-home.com/
    6. Re:I have a better idea. by QuoteMstr · · Score: 4, Insightful

      My point is that government regulation and intervention is often a good thing. Let's look at energy specifically. Coal is cheap if you ignore its huge, disastrous externalities. In an unregulated market, we'd all be using coal. Now, we can ban coal outright, but that's very disruptive. A far better idea to simply make it expensive (or equivalently, make its competitors cheaper).

      In this way, government tax manipulation makes markets work better.

    7. Re:I have a better idea. by jcr · · Score: 1

      In this way, government tax manipulation makes markets work better.

      Sorry, that's nonsense. Emissions from coal plants are treatable with scrubbers and similar measures, and requiring coal plants to meet standards is far more direct and effective. Trying to accomplish the same effect with financial measures is a very roundabout, and inefficient approach.

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    8. Re:I have a better idea. by QuoteMstr · · Score: 1

      We can't legislate CO2 out of existence, and we have no viable technology for sequestering it. Reducing the number of coal plants is far more effective than waving a magic legislative wand.

      Besides, even if we could eliminate polluting outputs of the plants, coal mining is environmentally disastrous. Uranium mining demands only a small fraction of the manpower, pollution, and infrastructure for the same power output.

    9. Re:I have a better idea. by Anonymous Coward · · Score: 0

      There is no huge, disastrous externality in coal. It is a made up externality so the government can do exactly what it's doing: control more and more of our lives while telling us it's "for our own good".

      The fact that the same people who are talking about our impending doom due to coal are the same people that won't allow the only reasonable alternative (nuclear) is all anyone should need to realize global warming is a hoax.

    10. Re:I have a better idea. by kmac06 · · Score: 1

      Tax credits are a tax increase on those who don't get the credits.

    11. Re:I have a better idea. by LevonB · · Score: 1

      Undistorted prices works fine when you are dealing with and an industry that does not have external social costs. Unfortunately, the private costs associated with energy generation typically do account for all the negative external costs such as health care, climate change and pollution cleanup. Taxes (or tax credits) can add the social costs back in so producers and consumers can make proper market decisions based on the real costs. I love to play the libertarian but Keynesian economics make more sense when market failure has such drastic effects such as climate change and pollution. IMO.

      --
      Levon Barker
    12. Re:I have a better idea. by QuoteMstr · · Score: 1

      So we're reduced to conspiracy theories? The fact is that coal does pose huge, disastrous, scientifically-verifiable problems for mankind. Decades of research have supported this conclusion. You can't simply make it go away because you'd like it not to be true. Saying coal's pollution problems are made up is about as credible as saying the moon landings were faked, or that there really is a Loch Ness monster.

      By the way: I oppose coal and strongly support nuclear power.

    13. Re:I have a better idea. by Z34107 · · Score: 1

      Make the market efficient enough that the trillion or so spent on the Iraq war comes out of the oil company pockets, instead of adding to them, and I'll agree with you.

      Oooh, mad-libs!

      Make the market efficient enough that ponies come out of the sky, and I'll agree.

      Make the market efficient enough that toner comes out of the trees, and I'll agree.

      Is Exxon-Mobil another party in the Iraqi oil profit-sharing arguments? I thought it was mostly a Sunni/Shiite/Kurd thing.

      But, you make one good point: There are always market externalities, like pollution. Then, you ruin it: Taxes and tax breaks are a horrible way to account for those externalities. You can, like others have said: A) Just flat-out mandate that "polluting, non-renewable" forms of energy meet certain environmental standards of B) trust Congressmen to hand out money in the form of "tax incentives" in a purely altruistic way.

      But, I see you're worried about the budget. For 2008, we have $145.2 billion set aside for the "Global War on Terror." Compare that with "mandatory" spending - Social Security, Medicare, Welfare, etc. - and its $1.527 trillion costs.

      What we spend on handouts and checks in one year is less than we've spent on the entire war; yet somehow the war is single-handedly responsible for budget/environmental/nazi/godwin problems, hmm?

      --
      DATABASE WOW WOW
    14. Re:I have a better idea. by Anonymous Coward · · Score: 0

      In an unregulated market, we'd all be using coal.

      It didn't work out quite that way in the 90s, when the feds split the electric generating business off from the delivery of power and various states deregulated. All the businesses who built new generating capacity chose the same fuel: natural gas. As I read the business cases from that time, the decision was the result of the very high capital costs associated with a coal plant, and the long time frames required to recover that capital. NG plants might not be as profitable overall, but fit well into a five-year business plan.

    15. Re:I have a better idea. by Btarlinian · · Score: 1

      Emissions from coal plants are treatable with scrubbers and similar measures, and requiring coal plants to meet standards is far more direct and effective. Trying to accomplish the same effect with financial measures is a very roundabout, and inefficient approach.

      Someone clearly hasn't taken a basic economics course. If so, you would have heard of the Pigovian tax, which is considered by economists as one of the most efficient ways to account for negative externalities. On the other hand, a direct emissions limit would prevent the use of "dirty" technologies, even when their benefit is so great that it outweighs the cost of pollution.

    16. Re:I have a better idea. by philspear · · Score: 1

      How about removing the tax credits for ALL forms of energy so we can have an undistorted idea of what the energy costs from each method, hmmmm?

      Well right after the energy crisis to end all energy crises, economic depression, subsequent anarchy, looting, and fundamentalist islamic (aka anti-american) revolutions in all middle-eastern countries which are remotely friendly towards us, I'm sure that will ensure the most efficient possible way to power our heaters during the nuclear winter!

      I'm not a fan of the current system, but I am a fan of HAVING electricity and the society we've built around it. I'm not a fan of foreign oil dependance and neo-imperialism or whatever the hell it is we're doing in the middle east, but I'm realistic enough to know if we suddenly quit buying oil from certain unsavory types, we'll be dealing with new, angrier unsavory types.

      Iraq is only the most prominent example. We messed up, but unfortunately admitting that and forgetting the whole deal altogether is going to make things worse. Well, to be accurate, "they" messed up, I'm still saying "I told you so" and take no credit for the mistakes, but I do accept the responsibility of dealing with it, since those who put us there are incapable of doing anything about it.

      Bandaid, shortsighted solutions to our energy needs, and capital interests run amok without postive government guidance got us into this situation to begin with. Government interference isn't always helping and in a lot of cases is hurting, but blanket deregulation is kind of like giving a diabetic a gallon of insulin reguardless of glucose levels.

      My gut feeling is that if quick-fixes and free-market forces get us out, it will be completely by chance and will only be to get us into a bigger problem.

    17. Re:I have a better idea. by jcr · · Score: 1

      Someone clearly hasn't taken a basic economics course.

      You know, if you didn't start out with patronizing bullshit like this, you might have a better chance of convincing people of your position.

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    18. Re:I have a better idea. by jcr · · Score: 1

      We can't legislate CO2 out of existence, and we have no viable technology for sequestering it.

      Did I call for anything of the kind? The problem with coal is the sulphur and the soot, not the CO2. CO2 isn't a pollutant.

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    19. Re:I have a better idea. by QuoteMstr · · Score: 1

      CO2 isn't a pollutant.

      You should be more careful. People have died of laughter.

    20. Re:I have a better idea. by jcr · · Score: 1

      People have died of laughter.

      I'm laughing at you right now, sunshine. Got any idea what would happen if there were no CO2 in the atmosphere, or for that matter, in your lungs? It's not a pollutant.

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    21. Re:I have a better idea. by TheSync · · Score: 1

      Someone clearly hasn't taken a basic economics course.

      You know, if you didn't start out with patronizing bullshit like this, you might have a better chance of convincing people of your position.

      While that it true, I do kind of wonder what percentage of Slashdot users have taken a basic economics course....

    22. Re:I have a better idea. by IRIGHTI · · Score: 1

      Go fill you lungs with CO2 and tell me how that works out for you. CO2 is toxic at high enough concentrations. And if you did not have any CO2 in your lungs you would be fine, up until you reallised that your lungs were not working...

    23. Re:I have a better idea. by bill_mcgonigle · · Score: 1

      Saying coal's pollution problems are made up is about as credible as saying the moon landings were faked, or that there really is a Loch Ness monster.

      Besides the pollution, coal mining directly kills thousands of miners every year.

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    24. Re:I have a better idea. by Anonymous Coward · · Score: 0

      How about building windmill fan blades out of solar panels

    25. Re:I have a better idea. by QuoteMstr · · Score: 1

      As the Greeks noticed, what makes a poison is the dose.

    26. Re:I have a better idea. by meringuoid · · Score: 3, Insightful
      The fact that the same people who are talking about our impending doom due to coal

      These would be climatologists.

      are the same people that won't allow the only reasonable alternative (nuclear)

      These would be Greenpeace.

      is all anyone should need to realize global warming is a hoax.

      These would be idiots.

      --
      Real Daleks don't climb stairs - they level the building.
    27. Re:I have a better idea. by jcr · · Score: 1

      And if you did not have any CO2 in your lungs you would be fine, up until you reallised that your lungs were not working...

      Nope. C02 stimulates breathing.

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    28. Re:I have a better idea. by shilly · · Score: 1

      Your comment is unintentionally funny for a number of reasons.

      What really jumped out for me was the implied tone in comparing the apparent idiocy of spending money on social security, healthcare and welfare as opposed to spending money on security theatre at airports and blowing up Iraqis.

      The other really funny bit was when you pretended that free-marketeers think that taxes are really rubbish at correcting for market imperfections but would be perfectly fine with regulation ("mandate that "polluting, non-renewable" forms of energy meet certain environmental standards). The truth, of course, is that business objects to both, on principle (the principle being, "but I want to make more money and you're stopping me").

    29. Re:I have a better idea. by Anonymous Coward · · Score: 0

      Given you're smart enough to spot the patronising tone, surely you're smart enough to read past that, lay your emotions to one side, and review the content? What he says (as opposed to the way he says it) is quite right: Pigovian taxes work well and better than regulation, in many cases.

      Finally, given that this is Slashdot, you're on to a losing battle if you're only going to take on board messages from people who are polite to you.

    30. Re:I have a better idea. by Brandybuck · · Score: 1

      That's why I also advocate spending cuts. I know it marks me as a dangerous heretic to suggest it, but every tax cut needs to be combined with an equal spending cut. Government does not produce anything, so every dollar is spends comes from us. We like tax cuts because taxes are felt imediately. But financing that spending through borrowing or inflation is just as damaging to the economy.

      The government is like a drunk wino. It doesn't matter if he's buying his Ripple with cash or a credit card, he needs to stop buying the Ripple in the first place!

      --
      Don't blame me, I didn't vote for either of them!
    31. Re:I have a better idea. by kmac06 · · Score: 1

      Cheers to that!

    32. Re:I have a better idea. by aevans · · Score: 1

      McDonalds, H&R Block, Whole Foods, and Nintendo all have "negative external costs".

  10. 2010? Sigh... by Brandybuck · · Score: 4, Insightful

    We are never going to get one fifth of our energy from renewable in two years in this state. It ain't going to happen. Californians are under this delusion that passing a law can change reality. We're rather stupid that way.

    We simply don't have the technology to produce 20% of our current electricity from renewable source within two years. This law will either be ignored or the state will end up suing itself for non-compliance. We might be able to do it if we dammed up some major rivers but we couldn't build the dams and get them filled in time.

    We'll eventually get cheap and efficient solar cells we can roof our houses and pave our streets with. But bulldozing twelve and a half square miles to erect mirrors is going to cause a lot of permanent damage to the environment for almost negligible gain. It's stupid in a way only California can be stupid.

    --
    Don't blame me, I didn't vote for either of them!
    1. Re:2010? Sigh... by v1 · · Score: 1

      they don't tear out houses to put in solar farms. Typically use desert. The big problem there is transmission due to distance from the city, but they're working on using superconductive underground transmission lines for that. (see manhatton island)

      --
      I work for the Department of Redundancy Department.
    2. Re:2010? Sigh... by Anonymous Coward · · Score: 0

      It could happen, and the way to do it would be quite simple. Spend a ton of money on inefficient technologies that do nothing but make hippies feel better about themselves, while driving up energy costs by 50-100%.

    3. Re:2010? Sigh... by Anonymous Coward · · Score: 2, Interesting

      i strongly disagree. I live on the central coast and know where they planned to put this planet ( carrizo plains and/or california valley ). The land there is super flat to begin with and almost completely barren.

      Conditions in this area are very ideal, the only opposition comes from the few people actually inhabiting this area: they don't want to look outside and see solar panels.

    4. Re:2010? Sigh... by will_die · · Score: 1

      Long haul transmission of power is not a problem, even from coast to coast you loose less then 8%
      The main problem, besides higher cost, is that solar, wind, etc are all unreliable. So to handle that you have to have duplicate a massive amount of the generators so replace 1Watt of power from reliable sources(coal, nuclear, hydro, etc) you have to have the ability to generate between 1.7 to 1.9(depending on study) Watts of power and that needs to be spread around so the lack on wind in one area does not stop your extra generation.

    5. Re:2010? Sigh... by v1 · · Score: 1

      or you just arrange to buy power from other places during peak periods or at any other time your generation is below demand.

      The superconducting angle was a front page article recently on slashdot, here's a little summary if you missed it: http://www.technologyreview.com/Energy/18790/

      Though in that respect I think they were more interested in reliability than added capacity.

      Googling for "solar power desert transmission loss" we find losses quoted anywhere from 10-40%, probably varying on distance.

      One article quotes,

      The way we do things now the transmission losses would be considerable â" from the middle of the Sahara to the United Kingdom might involve a transmission loss of 30% of the power generated although here are ways to considerably reduce this loss if the reduction is cost effective; it may not be, because, after all the source of the power â" sunlight â" is free.

      And I think that's a good point... 30% loss doesn't sting so bad when the power is free. (though the start point infrastructure was not, but is a one time payment)

      --
      I work for the Department of Redundancy Department.
    6. Re:2010? Sigh... by General+Wesc · · Score: 1

      This law will either be ignored or the state will end up suing itself for non-compliance.

      Suing itself? No. Charging the investor-owned utilities 0.05 USD/kwh up to 25 000 000 USD, yes.

      Seems to me that the cap makes it a small fee for big suppliers and a relatively large one for small suppliers. A shame, really, but a laudable effort to get something good done. Perhaps the fine should start out tiny and grow over time (with no cap) rather than using a hard deadline.

    7. Re:2010? Sigh... by Sinical · · Score: 1

      We are never going to get one fifth of our energy from renewable in two years in this state. It ain't going to happen. Californians are under this delusion that passing a law can change reality. We're rather stupid that way.

      I wondered if it was instead "20% of new capacity" or something like that, but no, it really does look like it's 20% of retail sales of electricity (I suppose industrial has some different mandate (like none?)).

      http://www.dsireusa.org/library/includes/incentive2.cfm?Incentive_Code=CA25R&state=CA&CurrentPageID=1

                    California's Renewables Portfolio Standard (RPS) program requires retail sellers of electricity to increase their sales of eligible renewable-energy resources by at least 1 percent of retail sales per year, so that 20% of their retail sales are served with eligible renewable energy resources by 2010.

    8. Re:2010? Sigh... by Anonymous Coward · · Score: 0

      PG&E already obtains 14% of its electricity from renewables. If all of their renewable commitments were commercialized they would get 24%.

      But the 2010 timeframe is not a slam-dunk because permitting and manufacturing lead times will delay commercialization.

    9. Re:2010? Sigh... by Anonymous Coward · · Score: 0

      Someone has to create the market. Private industry failed for many, many years to do so. Expressing the political will and fueling the market with incentives is the way to go. Society pays, private money jumps on the band wagon, when it seems safe enough, not to loose money. Not reaching a publically stated goal (in time) does not necessary mean doing so was a failure. Reaching or even surpassing this mark would be great, but going from almost zero to twenty percent renewable energy in rather short time is not unambitious - even for sunny California.

    10. Re:2010? Sigh... by Anonymous Coward · · Score: 0

      Absolutely; California and its Prius kulture are beyond stupid - the notion that they can live in suburbs, commute 50 miles a day each way to work, log thousands of solo miles a year, sprawl further every year AND save the environment is insane. Like southern slave holders from before the war who suggested the slaves were better off in captivity, they think (despite thermodynamics) they can have their mobility and earth day too. Well, as an urbanite who hasn't owned a car for a decade, i say: start drilling off santa monica; start making tires in the tenderloin; start fermenting the acid for the ipod and prius batteries in la jolla; and start bringing the war in the mid-east to the west coast, 'cause you're leading the world in per-capita energy consumption by a long shot at it won't last long, particularly if you think 1mw per 10acres is an improvement.

    11. Re:2010? Sigh... by Anonymous Coward · · Score: 0

      We simply don't have the technology to produce 20% of our current electricity from renewable source within two years. This law will either be ignored or the state will end up suing itself for non-compliance.

      ... or how about the obvious third solution: law will be amended to have longer transition time ("in N years", where N is, say, 5), and possibly stepwise refinements.

      Nah, no, that'd look like a way too simple and sensible work-around.

      And no, there is nothing wrong in setting tough, sometimes even impractical policies. Without pushing things out of the comfort zone, changes do not happen. Of course it would be even better if goals were more realistic, but hey, as with everything, it is possible to revise said goals.

    12. Re:2010? Sigh... by Brandybuck · · Score: 1

      The desert isn't dead. Paving over enough desert to power California is going to destroy a crapload of ecology. I'm not an environmentalist (at least not the religious variety) but it seems to me that burning petroleum that comes from underneath the desert is a lot better for the environment than paving over a desert.

      --
      Don't blame me, I didn't vote for either of them!
    13. Re:2010? Sigh... by Brandybuck · · Score: 1

      Seems to me that the cap makes it a small fee for big suppliers and a relatively large one for small suppliers.

      The irony will be all the Californians whining about how horrible it is that megacorporations are running the energy industry...

      --
      Don't blame me, I didn't vote for either of them!
    14. Re:2010? Sigh... by QuoteMstr · · Score: 1

      It's a desert. Sure, there's some life there, but there really aren't all that many people. The purpose of environmentalism is to ensure a better future for us and our offspring, not to objectively help cacti and hares. If you want to do something with a desert, you need to exploit its resources, build a city on it, or irrigate it. Only the first doesn't require all that much water, and if you haven't noticed, we're a little short on water these days.

      Destroying desert so we can better preserve fertile coastal plains is a wise move, and helps humanity. On the other hand, burning that oil from under the desert (what's left of it, anyway) will hurt humanity.

    15. Re:2010? Sigh... by aevans · · Score: 1

      There aren't many lizards or plants or even bacteria in a desert either. Compared to anywhere else, the desert is deserted, not just by humans, but by all other life.

  11. More than all the money ever printed by heroine · · Score: 1

    And they're spending more than all the money ever printed to buy Calif* land instead of the nearest non Calif* land.

  12. Split some atoms by kf4lhp · · Score: 5, Interesting

    I still like nuclear.

    The plant that's 4 miles from my house sits on less than 1 square mile and produces over 2300 MW, day or night.

    The 12.5 square miles of flat desert land may be no problem out west, but finding several hundred acres of flat land here in the Appalachians just isn't happening. Besides, we'd have to cut down all the trees.

    1. Re:Split some atoms by slashflood · · Score: 1, Interesting

      If space is your concern, think about the square miles needed to permanently store the nuclear waste. Uranium also doesn't grow on trees, you know? The power plant that you can see four miles from your house is just a tiny part of the whole complex.

    2. Re:Split some atoms by swillden · · Score: 4, Informative

      If space is your concern, think about the square miles needed to permanently store the nuclear waste.

      It's tiny compared to solar plant scales, even without reprocessing, and if we'd ever fix the political problem we have with breeder reactors, we'd reduce the waste volume by two orders of magnitude.

      Uranium also doesn't grow on trees, you know?

      Again, reprocessing vastly increases the power obtainable from a given amount of uranium, and use of breeders also means that we can use lots of other radioactive elements, many of which are far more common than uranium.

      The power plant that you can see four miles from your house is just a tiny part of the whole complex.

      A fact that is even more true of PV solar plants.

      Fission is the cheapest, cleanest energy technology we have, and one of the safest as well. Unfortunately, it's bound up in nearly-intractable political problems. Eventually, though, oil and coal will be expensive enough, and we'll have seen that solar, wind, wave, etc. technologies simply aren't workable on a sufficiently large scale, and then the political obstacles will disappear.

      --
      Note to ACs: I usually delete AC replies without reading them. If you want to talk to me, log in.
    3. Re:Split some atoms by Anonymous Coward · · Score: 0

      Encourage reprocessing and you drop the waste mass by 99%. Breed uranium if it gets too scarce, and now you can use more than the 0.72% of uranium that's U-235. In combination, that would help a lot.

    4. Re:Split some atoms by Anonymous Coward · · Score: 0

      where to store nuclear waste? Easy. Munitions.

    5. Re:Split some atoms by mschuyler · · Score: 1

      Sure, but every KW generated by solar out west is one more KW you don't have to generate in the Appalachians.

      --
      How about a moderation of -1 pedantic.
    6. Re:Split some atoms by Anonymous Coward · · Score: 0

      I could go with nuclear if the Europeans built the reactor. They have designs that almost can't be made to melt down. The American corporations are criminal, and only care for the money they'd make. Their designs are crap; the execution would be vastly over budget.

    7. Re:Split some atoms by Anonymous Coward · · Score: 0

      If space is your concern, think about the square miles needed to permanently store the nuclear waste. Uranium also doesn't grow on trees, you know? The power plant that you can see four miles from your house is just a tiny part of the whole complex.

      Can you crazy environmentalists just stop this bullshit? The world is bad enough as it is, and the last thing we ever want is a bunch of people trying to stop progress and lower our standards of living.

    8. Re:Split some atoms by Happy+Lemming · · Score: 1

      So do I, but try getting a nuke up and running in less than twenty years. Too many permits, too many regulations.

    9. Re:Split some atoms by khallow · · Score: 1

      I bet it'll happen in the US. As I see it, the fact that there are companies actually starting the process of building nuclear plants again means somebody with money expects payback in a reasonable period of time (ie, less than 20 years).

    10. Re:Split some atoms by BlueParrot · · Score: 1

      If space is your concern, think about the square miles needed to permanently store the nuclear waste.

      I'll bite. The energy stored in chemicals bounds, such as those found in oil, plant material, sugar, batteries and so on, are usually a couple of electron volts. To ionize an hydrogen atom, as an example, requires about 13.6 electron volt. Now, the energy released when splitting one Uranium atom is roughly 200 million electron volts.

      So how much space do we need then? Well, lets say we use something like a 1000m x 1000m x 10m storage space. That is, one square kilometer 10m high. That would fit 200 million metric tonnes of uranium. However, we are storing the fission products rather than uranium, so lets say half that as a rough estimate. In fact, lets account for cooling ducts and packaging and so on, and reduce the density by a factor of 20. So 10 million metric tonnes of uranium. How long would 10 million tonnes of uranium last?

      The number of Uranium atoms in 10 million metric tonnes is roughly:
      1 / 238 * 10^8 * 6 * 10^23 = 2.5 * 10^31
      Each of these give you 200 million electron volt, so in total:
      5 * 10^39 eV = 8 * 10^21 J
      US total energy consumption is roughly 3.3 TW = 3.3 * 10^12 W , and that includes ALL energy, heating transportation etc...
      There is roughly 31536000 seconds in a year, so at a power consumption of 3.3 TW the US consumes roughly:
      1 * 10^19 J per year.

      Thus our Uranium would last for roughly 800 years.

      So there you have it. At pressent energy consumption rates, even a waste dump of just a few square kilometers would be perfectly capable to hold all the spent fuel that would be generated for almost a milennium under the assumption ALL energy was from fission. If you think I have done something wrong somewhere, or if you are against reprocessing, feel free to increase the required area by a factor of 100 or so, the area would still just be ten kilometers each way. Also, note that if propperly reprocessed and burnt in fast breeder reactors the waste decays to natural levels within 300 years, so we would not actually ever fill our repository, which has space for 800 years.

      Storing the spent fuel is not a technical problem, the contribution to the price of power is less than 10%, and even without any further improvements in technology it can be easily achieved with traditional materials. The "problem" is that idiots keep demanding, and then opposing, things like yucca mountain, which is nothing but a fantastic waste of taxpayers money. The argument for it has been that we must not burden future generatiosn with looking after a nuclear waste repository. Somehow the same argument does not apply to the emissions from fossil fuels, or to the elements used to create solar panels, many of which are rather toxic INDEFINATELY.

    11. Re:Split some atoms by multiplexo · · Score: 1

      You're a fucking moron. I know you think that you're real smart because you wrote "...think about the square miles needed to permanenty store the nuclear waste" and "Uranium doesn't grow on trees, but you're a fucking moron. Let me explain to you why you're so fucking stupid.

      1) "...think about the square miles needed to permanently store the nuclear waste".

      Sorry, thank you for playing but the square miles needed to store all of that nuclear waste still pale in comparison to the square miles needed to produce solar photo-voltaic electricity. It doesn't matter how efficient your solar cells are you can only get about 1 kilowatt per square meter of power from the sun. This isn't bad, it's nothing to sneer at, but if you want a lot of power you'd better plan on covering a lot of square meters with solar cells. Now, from that 1kW per square meter take into account the fact that the cells used for these projects are between 10 and 20 percent efficiency, that your power source isn't available for 12 hours a day and that there are these things called clouds that can reduce the power you get from your power source and you see a dramatic increase in the amount of square meters you need to cover with silicon to generate meaningful amounts of power.

      Let's consider the plant in question. 12.5 square miles producing 800 megawatts. It sounds like a lot, but in terms of energy density it sucks. 12.5 square miles is 32.4 square kilometers, with an 800 megawatt capacity that works out to about 25 megawatts per square kilometer or about 25 watts per square meter.

      Now according to the article, which you probably didn't read, that power production figure is in the middle of a sunny day. Since it's not sunny all day long it kind of sucks when the sun goes down because when it does there goes your electricity.

      Now, let's compare this plant to the Palos Verde Nuclear Generating Station. Palos Verde sits on 16 square kilometers of land and generates, on average, 3.2 gigawatts of electricity, four times as much as the plant mentioned in the article, and it generates that electricity day and night. Oh, and the 16 kilometers that Palos Verde site aren't all covered with solar cells, so in terms of not covering up the land with lots of solar cells nuclear wins on power generation and humps solar like the over-rated, underperforming, overhyped by stupid people bitch that it is.

      "But the waste" you ignorantly squee. "What about the waste?" What about it? Find an unused chunk of desert, dig a large hole in it, encase the waste in suitable containers and bury it. Even without reprocessing this doesn't require a lot of land. In 2007 the US had about 50,000 tons of spent waste from nuclear reactors (Wikipedia: http://en.wikipedia.org/wiki/Nuclear_power). 50,000 metric tons of nuclear waste. 50,000 metric tons of nuclear waste is, at an assumed average density of say, 10 tons per cubic meter that works out to 5000 cubic meters. That's not a lot, a cube 18 meters on a side. If we assume that we want to dilute the waste at a ratio of 100:1 that would give us a 500,000 cubic meters of nuclear waste, which is a cube 80 meters on a side.

      Reprocessing the waste, either by using standard reprocessing technologies such as PUREX or newer methods such as the DUPIC cycle would reduce this volume even more.

      Now, this doesn't include the low level waste from nuclear operations. But while taking that into account we should also take into account the waste from producing solar cells. See, producing solar cells produces a lot of nasty waste as well. It's not radioactive, but it is quite toxic, and that's just the silicon production. Don't believe me? Then read about the Chinese who are finding out what life around a poly-silicon plant is like

      http://www.washingtonpost.com/wp-dyn/content/article/2008/03/08/AR2008030802595.html

      What wa

      --
      cheap labor conservatives - they want to keep you hungry enough to be thankful for minimum wage.
    12. Re:Split some atoms by BlueParrot · · Score: 1

      Bah, when I wrote that up I made a change to the incoming numbers because I realised you can't easily stack uranium 100m high, and I seem to have missed by one factor of ten when converting the energy consumption to joules. The required area for 800 years would indeed be 100 square kilometers , but as I mentioned above, that is still just 10 kilometers each way, and if you reprocess it so the fission products decay you only need to store it for 300 years anyway.

      Here is the corrected calculation:

      The number of Uranium atoms in 10 million metric tonnes is roughly:
      1 / 238 * 10^7 * 6 * 10^23 = 2.5 * 10^30
      Each of these give you 200 million electron volt, so in total:
      5 * 10^38 eV = 8 * 10^20 J
      US total energy consumption is roughly 3.3 TW = 3.3 * 10^12 W , and that includes ALL energy, heating transportation etc...
      There is roughly 31536000 seconds in a year, so at a power consumption of 3.3 TW the US consumes roughly:
      1 * 10^20 J per year.

    13. Re:Split some atoms by Anonymous Coward · · Score: 0

      If only there were some way to transport that spent fuel somewhere else, where space is not at a premium.

      Stay with me on this. We could make some sort of container with wheels attached, and some sort of motive power could turn the wheels, imparting a horizontal velocity to the entire assembly.

      We could also lay down some sort of surface on top of the bumpy ground to facilitate this vehicle's travel.

      On second thought, this is starting to get way too complicated. It'll never work.

    14. Re:Split some atoms by toddestan · · Score: 1

      The 12.5 square miles of flat desert land may be no problem out west, but finding several hundred acres of flat land here in the Appalachians just isn't happening. Besides, we'd have to cut down all the trees.

      That probably won't be so hard once we're done removing all the mountaintops for the coal buried underneath.

    15. Re:Split some atoms by Anonymous Coward · · Score: 0

      Design a container that will not leak for 10,000 years given no maintenance whatsoever in changing geologic conditions and weather patterns and then we will talk.

    16. Re:Split some atoms by will_die · · Score: 1

      fuel rods are not the major nuclear waste. You have all the tools that are used to work with them, storage bins, etc all are radioactive and at some time in their life cycle will need to be stored as waste.
      Also some the largest generators of radioactive waste are hospitals and other industrial companies.

    17. Re:Split some atoms by Anonymous Coward · · Score: 0

      Nuclear waste is recyclable. Look at how the French do it. One processing plant for the entire country. Been doing it for years, and no nasty stuff winding up in the hands of EEEEEVIL terrorists, either. There's also modern plant designs with little waste products. Educate yourself before spouting off with anti-nuke concerns that are 40 years out of date.

    18. Re:Split some atoms by afabbro · · Score: 1

      Uranium also doesn't grow on trees, you know?

      Um, no actually you don't have to grow it at all. The Big Bang already did that for us.

      --
      Advice: on VPS providers
    19. Re:Split some atoms by memristance · · Score: 1

      As an interesting aside, if the whole world were to convert to nuclear and keep their energy consumption rates constant (both unlikely, but for the sake of argument let's say they do), this would imply a yearly consumption of 5.0 * 10^20 J based on 2005 rates. Given that the IAEA estimates a total of 2.5 * 10^24 J of uranium available (if used in breeder reactors), there is enough uranium to power the world for 5000 years.

      However, if we restrict supply to only that which has been proven economically recoverable by the IPCC and only use once-through reactors, that number drops to 2.0 * 10^21 J or a measly four years of worldwide power.

      I'd say this is a fairly strong indictment against continued usage of our current once-through reactors, wouldn't you agree?

    20. Re:Split some atoms by Anonymous Coward · · Score: 0

      If space is your concern, think about the square miles needed to permanently store the nuclear waste.

      Finish Yucca Mountain. Oh, wait, Harry Reid's standing in the way. Besides, those square miles to best store nuclear waste on a long-term basis are underground.

      Uranium also doesn't grow on trees, you know?

      True. We mine it. And it's one thing that the US has quite an abundance of.

    21. Re:Split some atoms by meringuoid · · Score: 1
      Um, no actually you don't have to grow it at all. The Big Bang already did that for us.

      The Big Bang made hydrogen and helium. The rest is the work of supernovae.

      --
      Real Daleks don't climb stairs - they level the building.
    22. Re:Split some atoms by Anonymous Coward · · Score: 0

      If space is your concern, think about the square miles needed to permanently store the nuclear waste.

      Have you not seen the solar panels on the roof of a house?? Lots of space out there pal... Relative to that plant of yours I think we can consider this no space at all.

    23. Re:Split some atoms by ivan256 · · Score: 1

      That's the great thing about "economically recoverable supplies". As the price goes up the supply gets larger.

      Many mines were shut down in the late '80s as the price dropped below what could sustain the profitability of operating them. As the price increases and the glut of existing supplies decreases, all of those resources which ceased to be considered economically recoverable will again be added to the tally.

      We do currently face the issue that it may take longer to bring that production back online than we have existing supply, but that's another issue entirely.

      The 80 year figure is based on a $130/kg price for uranium ore. At 2004 prices, about 1500 years worth of urianium is economically viable.

    24. Re:Split some atoms by coopex · · Score: 1

      You forgot lithium.

      (Which apparently a large percentage of the posters on this topic forget to take.)

      --
      The road to hell is paved with good intentions.
  13. we had solar farms by Orig_Club_Soda · · Score: 0

    before deregulation, we had solar farms, but the energy companies conspired to to make false blackouts and drive the price up(ENRON, PG&E) . THey left the solar farms go into disrepair and then simply tore them down. So when I hear about this, I think this is just a scam

  14. Pro-Nuclear Slashdot by Anonymous Coward · · Score: 0, Troll

    Sometimes I wonder why the most aggressive, arrogant and most stupid posts get modded up.
    Then I remember they are pro-nuclear and this is slashdot, where nuclear energy is good and no number or facts will ever change that.

    After all, you can still call people hippies and
    cults and think yourself to be so brave to be politically incorrect. You are not brave when you are an asshole, you are simply an asshole.

    1. Re:Pro-Nuclear Slashdot by Anonymous Coward · · Score: 0

      Sometimes I wonder why the most aggressive, arrogant and most stupid posts get modded up.
      Then I remember they are pro-nuclear and this is slashdot, where nuclear energy is good and no number or facts will ever change that.

      What, facts from alternate universes?

    2. Re:Pro-Nuclear Slashdot by Anonymous Coward · · Score: 1, Funny

      Racist!

      Just because our skin is green, we communicate telepathically, we have 14 eyes, and we all have goatees doesn't mean that we're not human!

    3. Re:Pro-Nuclear Slashdot by Anonymous Coward · · Score: 0

      Is that what a democrat looks like?

  15. NUCLEAR IS NEVER THE ANSWER by Anonymous Coward · · Score: 0, Funny

    Nuclear power means nuclear weapons. The two are inseperable. The only way to eliminate nuclear weapons is to destroy nuclear technology and ensure that nobody ever rediscovers it. The only way to ensure the end of nuclear proliferation is to cease development of nuclear technology in ALL FORMS, and destroy any existing nuclear technology.

    The supposed benefits of nuclear power (which I find highly dubious and false) do not justify the continued existence of weapons which can destroy all life on the planet.

    1. Re:NUCLEAR IS NEVER THE ANSWER by cheesybagel · · Score: 5, Insightful

      Wrong. You do not need nuclear power to make nuclear weapons. Nor do you need nuclear weapons to have nuclear power.

    2. Re:NUCLEAR IS NEVER THE ANSWER by Toonol · · Score: 5, Insightful

      Nuclear power means nuclear weapons. The two are inseperable. The only way to eliminate nuclear weapons is to destroy nuclear technology and ensure that nobody ever rediscovers it.

      Wow. The parent poster may be actually insane. Not just nutty in an eccentric, slashdot, sense, but someone with a full-on schizophrenic break with reality.

      Fire has killed a lot of people, too.

    3. Re:NUCLEAR IS NEVER THE ANSWER by Anonymous Coward · · Score: 5, Funny

      Fire means fire weapons. The two are inseperable. The only way to eliminate fire weapons is to destroy fire technology and ensure that nobody ever rediscovers it.

    4. Re:NUCLEAR IS NEVER THE ANSWER by wisty · · Score: 1
      In defense of the 'nutter', nuclear power is so expensive it's not really worth investing in, unless you are planning to build some nukes.

      Japan is the only country that I can think of that has nuclear power, and doesn't have (or want) nuclear arms, but Japan is a special case (US investment, tiny area makes nuclear the only option, China will go for a 'preemptive strike' at the first hint of an arms race).

    5. Re:NUCLEAR IS NEVER THE ANSWER by MJOverkill · · Score: 5, Informative

      Canada uses CANDU nuclear reactors, which do not promote nuclear weapons since they use regular unenriched uranium. Canada also has no nuclear weapons. The idea that nuclear power is tied to nuclear weapons is absurd.

    6. Re:NUCLEAR IS NEVER THE ANSWER by Anonymous Coward · · Score: 0

      Nuclear power means nuclear weapons. The two are inseperable. The only way to eliminate nuclear weapons is to destroy nuclear technology and ensure that nobody ever rediscovers it. The only way to ensure the end of nuclear proliferation is to cease development of nuclear technology in ALL FORMS, and destroy any existing nuclear technology.

      The supposed benefits of nuclear power (which I find highly dubious and false) do not justify the continued existence of weapons which can destroy all life on the planet.

      I guess we should end all medical research as well, since one can easily create biological weapon to destroy all life on the planet as easily as we can make a cure to some disease. Let's ensure that all babies are discarded with the bathwater, shall we?

    7. Re:NUCLEAR IS NEVER THE ANSWER by Firethorn · · Score: 2, Insightful

      In defense of the 'nutter', nuclear power is so expensive it's not really worth investing in, unless you are planning to build some nukes.

      One, By the same arguement, Solar and wind power aren't worth investing in, because they're more expensive per kwh than nuclear.

      Two, nuclear weapons aren't made from reactor waste much anymore - we have more efficient methods.

      The waste from the nuclear plants in Canada, France, UK, and USA aren't used for creating nuclear weapon materials.

      --
      I don't read AC A human right
    8. Re:NUCLEAR IS NEVER THE ANSWER by Solandri · · Score: 3, Informative

      In defense of the 'nutter', nuclear power is so expensive it's not really worth investing in, unless you are planning to build some nukes.

      Nuclear power is the cheapest power source, cheaper than all but the cheapest coal plants, cheaper than hydro and wind, much cheaper than solar.
      Swedish power company's power generation costs
      IEA survey on electricity generation costs (PDF, page 46 fig 3.10, page 57, fig 4.6 and 4.7)

      Nuclear is also the safest in terms of fatalities per MWh generated (yes, even including Chernobyl).
      Stats on all significant power generation accidents 1969-1996 (PDF, page 240, fig 7.2.6)

      There are lots of other neat stats in the two PDFs, including injury rates (nuclear is about the same as hydro, only coal is safer), wind generation is much cheaper in the U.S. (maybe because the U.S. is only building it when it makes economic sense instead of where ever environmentalists want it?), solar costs almost 10x as much as other power sources

    9. Re:NUCLEAR IS NEVER THE ANSWER by philspear · · Score: 1

      The only way to ensure the end of nuclear proliferation is to cease development of nuclear technology in ALL FORMS, and destroy any existing nuclear technology.

      Where is superman when you need him?

    10. Re:NUCLEAR IS NEVER THE ANSWER by Orange+Crush · · Score: 5, Insightful

      Nature doesn't keep secrets. You can't uninvent anything, ever. You just have to learn to mitigate and live with it.

      The basic principles behind a nuclear weapon and nuclear power are the same, but having a nuclear reactor won't get you much closer to a nuclear weapon all by itself. The bombs themselves are dead-easy. Really all you need to do is quickly bring two sub-critical lumps of weapons-grade fissile material together and BOOM.

      Getting the fissile material and enriching (essentially, concentrating it down) it is the tricky part that takes government-level resources to accomplish. Fuel for a nuclear power plant and its wastes are useless for making a bomb without the critical enrichment step.

      That being said, there are some very real concerns over existing nuclear power plants. No private company will insure them, the high risk and long payback period on the initial investment scares away most investors, and they can't be shut down and spun back up as needed for fluctuating power demands, so they're not suitable for everywhere. Blindly declaring "build more nukes!" isn't going to be very helpful. We need to give careful consideration to if, how and where we build more; and focus on promising new designs that mitigate many of the drawbacks (pebble bed, breeders, thorium, etc.)

    11. Re:NUCLEAR IS NEVER THE ANSWER by Anonymous Coward · · Score: 0

      Nuclear power means nuclear weapons. The two are inseperable. The only way to eliminate nuclear weapons is to destroy nuclear technology and ensure that nobody ever rediscovers it. The only way to ensure the end of nuclear proliferation is to cease development of nuclear technology in ALL FORMS, and destroy any existing nuclear technology.

      The supposed benefits of nuclear power (which I find highly dubious and false) do not justify the continued existence of weapons which can destroy all life on the planet.

      You might find it easier to destroy mathematics, physics, and chemistry instead. Destroying the science that created nuclear power and nuclear weapons would be like destroying Shakespeare, Chaucer, Dante, and Virgil, and then expecting modern literature to continue chugging along.

      You've probably heard the term "the cat is out of the bag." Well, in this case the bag was thrown around a lot, making the cat really pissed. And it also happens to be that the cat is the size of a tiger.

    12. Re:NUCLEAR IS NEVER THE ANSWER by Hurricane78 · · Score: 3, Insightful

      Hmm... why is it that
      * a country who itself
          - owns tons of nuclear bombs, biological and chemical weapons (all WMDs),
          - the biggest military in the world
          - and dangerously crazy people in the government,
          - and that wants to oppress the whole world(*)
      * wants to stop another much smaller country
          - with dangerously crazy people in the government
      * to build
          - nuclear bombs
          - and power plants
      * to protect itself from that big country's embargos?

      Hmmmmmmmmm???
      Ewwwwwwww!!!

      Exactly.

      (*) Oil did not get more expensive. The price for oil *normalized*, after the USA could not force the OPEC to sell out under market price anymore, because the Chinese told the OPEC that if the USA does stop buying, they'll buy it instead.

      --
      Any sufficiently advanced intelligence is indistinguishable from stupidity.
    13. Re:NUCLEAR IS NEVER THE ANSWER by Hurricane78 · · Score: 1

      Shit. Slashdot ate my <Internet-is-for-porn-monster> and <kate-monster> tags.

      --
      Any sufficiently advanced intelligence is indistinguishable from stupidity.
    14. Re:NUCLEAR IS NEVER THE ANSWER by fizzup · · Score: 4, Interesting

      Canada uses CANDU nuclear reactors, which do not promote nuclear weapons since they use regular unenriched uranium. Canada also has no nuclear weapons. The idea that nuclear power is tied to nuclear weapons is absurd.

      This is a little disingenuous. The NRU at Chalk River used to run on high-enriched uranium, and now runs on low-enriched uranium. Source.

      Furthermore, the NRU, like the NRX before it, is heavy-water moderated, which is efficient at producing plutonium. Source.

      Production of the world's medical isotopes using the NRU is one of the Canadian excuses for being able to produce bombs in a several-month time frame. It's true that Canada has never actually produced a nuclear weapon, but it's also true that some of the programs at Chalk River are "dual use".

    15. Re:NUCLEAR IS NEVER THE ANSWER by WalksOnDirt · · Score: 2, Informative

      According to your link, the new Advanced CANDU Reactor does used enriched fuel.

      --
      a,e,i,o,u and sometimes w and y (at be if of up cwm by)
    16. Re:NUCLEAR IS NEVER THE ANSWER by couchslug · · Score: 1

      "Wow. The parent poster may be actually insane. Not just nutty in an eccentric, slashdot, sense, but someone with a full-on schizophrenic break with reality."

      Never attribute to schizophrenia what may be adequately explained by the (common) combination of ignorance, stupidity, and passionate emotion driven by the above.

      --
      "This post is an artistic work of fiction and falsehood. Only a fool would take anything posted here as fact."
    17. Re:NUCLEAR IS NEVER THE ANSWER by cheesybagel · · Score: 1

      It is not civil nuclear power per se which is being opposed for Iran, but the centrifuge technology they have been developing. It is dual-use technology which can work either to make low-enriched uranium for power or high-enriched uranium for nuclear weapons. The IAEA has wanted to inspect the centrifuges to see if they have traces of high-enriched uranium, but Iran persistently refuses inspections which does not make others trust their intentions more for sure. Iran also has the required missile technology to deliver nuclear warheads, and continues to do saber rattling towards Israel and the USA.

    18. Re:NUCLEAR IS NEVER THE ANSWER by Average · · Score: 3, Informative

      Perhaps the only country you can think of. But, countries with commercial nuclear power but no nuclear weapons program are:

      Japan (your caveat noted)
      South Korea (including domestic designs)
      Canada (including domestic designs)
      Spain
      Belgium
      Germany
      Taiwan (similar to your caveat on Japan, though)
      Ukraine (built in Soviet days, though)
      Czech Republic
      Switzerland
      Bulgaria
      Finland
      Slovakia
      Brazil
      South Africa (they had nuclear weapons at one time, though)
      Hungary
      Romania
      Mexico
      Lithuania (again, built in Soviet days)
      Argentina
      Slovenia
      Netherlands
      and Armenia

    19. Re:NUCLEAR IS NEVER THE ANSWER by budgenator · · Score: 1

      because the Iranian Government panders to the 13yr old mind set and 13 year olds are the scariest most belligerent people on the planet

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    20. Re:NUCLEAR IS NEVER THE ANSWER by Average · · Score: 1

      CANDU-style technology can be used to make nuclear weapons. India's nuclear weapons come from similar heavy-water, natural uranium plants. Actually, so does most of the US arsenal. The Savannah River Site reactors were of that configuration, with on-power loading (like a CANDU) for producing weapons-grade Plutonium-239. We also got plutonium from the graphite-moderated reactors at Hanford. They also ran on unenriched uranium.

      Enriching uranium is *not*, necessarily, a step in building a nuclear weapon. Certainly not a requirement. Plutonium from natural uranium has always been much more common.

    21. Re:NUCLEAR IS NEVER THE ANSWER by Anspen · · Score: 2, Insightful

      Those figures don't include waste storage or decommissioning, which can run up quite a high bill. And of course the generating price depends in uranium ore cost, which could rise quite a lot if everyone turns to nuclear.

      Also important to remember: in most nuclear power generating countries new plants where never outlawed. If any company wanted to build one they could. The fact that they haven't says something about the cost/benefit analysis (yes there's also the NIMBY problem but still).

    22. Re:NUCLEAR IS NEVER THE ANSWER by Anspen · · Score: 1

      It should be noted though that at least half those countries could probably produce nuclear weapons within months, should they decide to do so.

    23. Re:NUCLEAR IS NEVER THE ANSWER by MrNaz · · Score: 1

      "13 year olds are the scariest most belligerent people on the planet"

      After the United States government.

      --
      I hate printers.
    24. Re:NUCLEAR IS NEVER THE ANSWER by BlueParrot · · Score: 5, Insightful

      Really all you need to do is quickly bring two sub-critical lumps of weapons-grade fissile material together and BOOM.

      Ok, if you say so. However, just a few catches.

      How large lumps?
      What shapes should they be?
      How pure do they need to be?
      How quickly do you need to bring them together?
      How long will they have to stay together?
      How powerful will the explosion be?
      How powerful explosives do you need to bring them together quick enough?
      Will you need a neutron source to ensure the chain reaction begins at the right moment?
      If so, how will you build it? Will you use Polonium-Beryllium or D-T fusion?
      How do you ensure the neutron source triggers at the right time?
      When should the chain reaction start to ensure a powerful yield?
      How many neutrons does your neutron source produce?
      Does it produce the same number of neutrons every time?
      Is the fissile material you use pure enough for a gun triggered design (hint, plutonium will not be)?
      If not, how do you build an implosion type weapon?
      What explosives can you use for the explosive lenses?
      What shape should the lenses have?
      What is the detonational velocity of the explosives you use?

      Otherwise I agree with you. Once you have worked out those tiny details there, and a couple of others like them, you just need to bring two pieces together. Of course, this all assumes you have the fissile material to begin with. Weapons grade Uranium is not exactly easy to manufacture, and getting Plutonium-239 pure enough from Pu-240 that you can use a simple "bring the pieces together" design is extremely challenging.

    25. Re:NUCLEAR IS NEVER THE ANSWER by Solandri · · Score: 2, Interesting

      Those figures don't include waste storage or decommissioning, which can run up quite a high bill. And of course the generating price depends in uranium ore cost, which could rise quite a lot if everyone turns to nuclear.

      The first link I gave included estimated nuclear waste disposal costs. Of course they have it easy since they can just ship most of it to France where it's reprocessed into more fuel. Here in the U.S. we're trying to bury "waste" that still contains 90% of its original energy consequently making it unnecessarily "hot" for an unnecessarily long period of time at unnecessary expense. If we reprocess, we should have enough uranium for thousands of years. Plenty of time to develop cost-effective renewables, if not fusion.

      Also important to remember: in most nuclear power generating countries new plants where never outlawed. If any company wanted to build one they could. The fact that they haven't says something about the cost/benefit analysis (yes there's also the NIMBY problem but still).

      The U.S. is almost alone in not expanding nuclear power (Germany banned it, and consequently buys a lot lot of electricity from France which is 80% nuclear). The U.S. hasn't been building nuclear plants because they take longer to get approved and construct (due to excessive regulatory requirements and lawsuits). So coal plants end up being less risky and requiring less capital investment, so that's what the power companies here build.

    26. Re:NUCLEAR IS NEVER THE ANSWER by ScrewMaster · · Score: 1

      "13 year olds are the scariest most belligerent people on the planet"

      After the United States government.

      Sure, you're trying to be funny and America-bash at the same time, but really. If the U.S. government were truly composed of the scariest, most belligerent people on the planet, why, we'd all be very fortunate. As it happens, there are far scarier, more belligerent, and rapidly-becoming-nuclear-capable governments on the planet. Get a grip. We may be your enemy, but we're not your only one.

      --
      The higher the technology, the sharper that two-edged sword.
    27. Re:NUCLEAR IS NEVER THE ANSWER by dakameleon · · Score: 2, Informative

      Also important to remember: in most nuclear power generating countries new plants where never outlawed. If any company wanted to build one they could. The fact that they haven't says something about the cost/benefit analysis.

      Wikipedia begs to differ: http://en.wikipedia.org/wiki/Economics_of_new_nuclear_power_plants#New_plants_under_construction

      --
      Man who leaps off cliff jumps to conclusion.
    28. Re:NUCLEAR IS NEVER THE ANSWER by JonathanR · · Score: 1

      You just look up that sort of information on wikipedia... ...easy!

    29. Re:NUCLEAR IS NEVER THE ANSWER by YttriumOxide · · Score: 1

      Japan is the only country that I can think of that has nuclear power, and doesn't have (or want) nuclear arms

      This is also true for most of Europe (like here in Germany for example). There actually are nuclear weapons here, but they're under the NATO Nuclear Weapons Sharing programme, and are realistically entirely controlled by the United States, so more or less they're "US Nuclear Weapons" that happen to be in Germany rather than "German nuclear weapons".

      (note that "most of Europe" does not include France of course - they love their nuclear weapons over there...)

      --
      My book about LSD and Self-Discovery
      Also on facebook as: DroppingAcidDaleBewan
    30. Re:NUCLEAR IS NEVER THE ANSWER by BlueParrot · · Score: 2, Informative

      Naaa, Sweden's policy is even worse than the US one. Not only are we on a once through cycle, we also have a law prohibiting construction of newer more modern plants, meaning the lifetime of the old ones had to be extended.

      The disposal has been handled a bit better here however. The authorities were smart enough to choose a repository site right next to one of the existing nuclear sites. The people who live there are largely positive to the plant and plans for a repository, possibly because they benefit from it in terms of energy and jobs, but also because they are used to the idea of having nuclear infrastructure nearby. Compare this to the US approach where the dump was located in a state that benefits very little from the industry that generates the waste. Public relations disaster... Also, in Sweden we have an interim storage facility that is already operating, so we're not in a rush to deploy a final repository in order to be able to accept waste from the utilities. As a consequence our regoluatory institutes have had plenty of time to asses and research the possible sites and technologies that could be used.

    31. Re:NUCLEAR IS NEVER THE ANSWER by MrNaz · · Score: 1

      I measure "belligerent" using the metric "number of times it has started wars in foreign countries".

      Not "proficiency at convincing public that its aggression is actually self-defense".

      --
      I hate printers.
    32. Re:NUCLEAR IS NEVER THE ANSWER by jacquesm · · Score: 1

      no, but it may be better to spend that money into getting the other half of the world access to clean water, food and education. Of course we'd never get away with stealing their natural resources any more...

    33. Re:NUCLEAR IS NEVER THE ANSWER by Anonymous Coward · · Score: 0

      Which is why everybody is overjoyed with the Iranian forrays into civil nuclear energy. Or Pakistan[1], or India, or Israel, or North Korea etc. You can have one without the other, but quite often you don't. To imply otherwise is a lie.

      [1] Where did you think Khan got the technology (Ultra centrifuges)? From a Dutch civil company (Urenco) and Delft University. Incidentally at the moment Iranian exchange students are not allowed to study certain sensitive nuclear subjects in the Netherlands.

    34. Re:NUCLEAR IS NEVER THE ANSWER by makomk · · Score: 1

      Actually, the cost figures for nuclear power are generally fudged heavily, by omitting the cost of decommissioning and waste storage post-decommissioning. I'm not sure nuclear power would even be commercially viable if it wasn't for governments subsidising them by dealing with decommissioning themselves.

    35. Re:NUCLEAR IS NEVER THE ANSWER by Sj0 · · Score: 1

      Nuclear weapons are the greatest force of world peace in the world.

      Universal proliferation of such dread weapons of destruction is the best way to make sure there's no war.

      And look! The only countries anyone is at war with are tiny ones without nuclear weapons!

      --
      It's been a long time.
    36. Re:NUCLEAR IS NEVER THE ANSWER by Sj0 · · Score: 0, Troll

      Because we want to rape and pillage Iran just as we have to Iraq.

      Iraq was unjustified after you take away the rhetoric and lies, why should Iran get special treatment?

      --
      It's been a long time.
    37. Re:NUCLEAR IS NEVER THE ANSWER by DrBoumBoum · · Score: 1

      Maybe if you try to obtain some kind of military-grade detonation, but I think that to Al-Quaeda et al, obtaining even the worst fizzle ever somewhere down in Manhattan would be amply satisfactory. And to get that you definitely don't need a D-T fusion neutron source, lense-shaped explosives or even probably much calculation or testing at all.

      So the main problem for the bad guys is to get their hands on enough reasonably concentrated material. A full-blown, worldwide fuel reprocessing industry, with many trucks and boats crossing land and sea full of such material, would make it very easy for them to steal that, and I think that was one of the reason for which politics decided against fuel reprocessing at the time.

    38. Re:NUCLEAR IS NEVER THE ANSWER by Anonymous Coward · · Score: 1, Interesting

      So much obfuscation ...

      So I'll bite.

      > How large lumps?

      Large enough for the combined mass to no longer be sub-critical. For U-235 it's about 50 kg. This doesn't need to be exact; just make two 30kg pieces and you're there.

      > How pure do they need to be?

      OP had this: weapons grade; read more carefully. better 85% U-235

      > How quickly do you need to bring them together?

      Probably around 300 m/s

      > How long will they have to stay together?
      > How powerful will the explosion be?

      Nearly the same question. Doesn't really matter; it'll go boom with any reasonable design. Maybe not a big boom, but ... maybe.

      Most of these questions are silly, pre-supposing an implosion type device. Although I'd probably want a Po-Be trigger for a gun-type too.

      > What shapes should they be?
      > Will you need a neutron source to ensure the chain reaction begins at the right moment?
      > If so, how will you build it? Will you use Polonium-Beryllium or D-T fusion?
      > How do you ensure the neutron source triggers at the right time?
      > How many neutrons does your neutron source produce?
      > Does it produce the same number of neutrons every time?
      > Is the fissile material you use pure enough for a gun triggered design (hint, plutonium will not be)?
      > If not, how do you build an implosion type weapon?
      > What explosives can you use for the explosive lenses?
      > What shape should the lenses have?
      > What is the detonational velocity of the explosives you use?

      The problem with your efforts to obfuscate the issue is this: It really isn't that hard to make something which goes boom --- IF YOU HAVE ENOUGH FISSILE MATERIAL. To your credit, you acknowledge this. But it cannot be overemphasized.

      But please don't try to pretend that anyone who can purify enough U-235 can't overcome the other, relatively simple technical challenges inherent in a gun-type design.

      Even those who simply buy the fissile material would have a good chance of making something scary. Maybe not devastating, but scary.

    39. Re:NUCLEAR IS NEVER THE ANSWER by Sj0 · · Score: 1

      Remember folks, even though we torture, and we use brutal military force slaughtering thousands to keep Iraqis in check, it's a GOOD thing we invaded Iraq, becuase Saddam Hussein tortured, and used brutal military force slaughtering thousands to keep Iraqis in check.

      I mean, Saddam Hussein had a puppet republic set up to hide the fact that he was really ruling the country. That's terrible. Obviously he should have set up a puppet republic to hide the fact that he was really ruling the country, like we do.

      --
      It's been a long time.
    40. Re:NUCLEAR IS NEVER THE ANSWER by Anonymous Coward · · Score: 0

      Really all you need to do is quickly bring two sub-critical lumps of weapons-grade fissile material together and BOOM.

      Ok, if you say so. However, just a few catches.

      How large lumps?
      What shapes should they be?
      How pure do they need to be?
      How quickly do you need to bring them together?
      How long will they have to stay together?
      How powerful will the explosion be?
      How powerful explosives do you need to bring them together quick enough?
      Will you need a neutron source to ensure the chain reaction begins at the right moment?
      If so, how will you build it? Will you use Polonium-Beryllium or D-T fusion?
      How do you ensure the neutron source triggers at the right time?
      When should the chain reaction start to ensure a powerful yield?
      How many neutrons does your neutron source produce?
      Does it produce the same number of neutrons every time?
      Is the fissile material you use pure enough for a gun triggered design (hint, plutonium will not be)?
      If not, how do you build an implosion type weapon?
      What explosives can you use for the explosive lenses?
      What shape should the lenses have?
      What is the detonational velocity of the explosives you use?

      Yaquub Akhtar, is that you?
      http://www.theonion.com/content/news/terrorist_has_no_idea_what_to_do

    41. Re:NUCLEAR IS NEVER THE ANSWER by windy_miller · · Score: 1

      nuclear power plants take 8-10 years to plan/design/build. There's a major bottle kneck in manufacturing the castings for the core - only one company in the world can build them (a japanese company, can't remember the name), which will be a major issue if we all start to build new reactors. We will not be able to build reactors nearly quick enough to keep up with demand, let alone if we all decide to go down the nuclear route to replace all our power.

    42. Re:NUCLEAR IS NEVER THE ANSWER by Firethorn · · Score: 1

      by omitting the cost of decommissioning and waste storage post-decommissioning

      Not true in the USA. When a plant comes online a part of the 'cost' of the electricity goes into an escrow fund for eventual decommisioning. US nuclear plants at this point have plenty of money for their eventual decommisioning, especially as they've extended their service life several times.

      As for the waste, by US LAW, they pay a tax per Kwh to the government in exchange for the USGov disposing of the waste. Problem: The USGov broke it's side of the deal, wasting money left and right over Yucca mountain. The organization has actually gotten sued over it, as the nuclear plants say they could have disposed of the waste for the money the government's been given.

      Pretty much every country except the USA has managed to figure out a way to handle their waste - Japan and France reprocess.

      --
      I don't read AC A human right
    43. Re:NUCLEAR IS NEVER THE ANSWER by Amouth · · Score: 1

      there are reactor designs that allow for the core container (the part you are talkin about) to be composed of two peices put togethr (which is easier done) the company you speak of is the only one with the equipment to cast it as a single peice.

      --
      '...if only "Jumping to a Conclusion" was an event in the Olympics.'
    44. Re:NUCLEAR IS NEVER THE ANSWER by Anonymous Coward · · Score: 0

      The only way to ensure that nobody ever rediscovers it is to make sure there is nobody around to rediscover it. And that leads us full circle back to the nuclear option.

    45. Re:NUCLEAR IS NEVER THE ANSWER by bigpat · · Score: 1

      yes there's also the NIMBY problem but still

      Brushing off the NIMBY problem is absurd. It is the greatest cost and problem. France provides most of its electricity with nuclear and it isn't going bankrupt... at least not because of nuclear power. The US stopped building nuclear plants because of the irrational fear caused by 3 mile island and the return of cheap oil.

      If cheap oil is gone, then we either suffer the consequences of not having enough heat and electricity or we go nuclear. There is no other viable option.

    46. Re:NUCLEAR IS NEVER THE ANSWER by bigpat · · Score: 1

      And if we turned to nuclear power then nuclear fuel would be too valuable to keep sitting in warheads.

    47. Re:NUCLEAR IS NEVER THE ANSWER by QuoteMstr · · Score: 1

      Only one company can build the cores? Well, that means that I, enterprising industrialist, can build a new plant and make a killing. This is the kind of situation capitalism is perfect for.

    48. Re:NUCLEAR IS NEVER THE ANSWER by Anonymous Coward · · Score: 0

      Care to list wars started country by country? The United States would be very low on that list. Or did you go to government school?

    49. Re:NUCLEAR IS NEVER THE ANSWER by 10Ghz · · Score: 1

      "Japan is the only country that I can think of that has nuclear power, and doesn't have (or want) nuclear arms"

      Finland, Sweden, Germany, South Korea, Spain, Belgium, Taiwan, Czech Republic, Switzerland, Slovakia... Finland is building a new nuclear power-plant as we speak, and last time I checked, Finland has no nukes, nor do they have any desire to have them.

      --
      Lesbian Nazi Hookers Abducted by UFOs and Forced Into Weight Loss Programs - -all next week on Town Talk.
    50. Re:NUCLEAR IS NEVER THE ANSWER by Anonymous Coward · · Score: 0

      You forgot something...,

      * a country who itself
          - is the only country to have actually dropped nukes.

    51. Re:NUCLEAR IS NEVER THE ANSWER by windy_miller · · Score: 1

      em, i think theres only one company that builds the cores, cause theres only one company that CAN build them. they're incredibly difficult to build, and this company has probably over 50 years experience in building big castings. So, by all means, if you could build them, had the expertise, then go on ahead.

  16. First POop @!! by Anonymous Coward · · Score: 0

    ahhh, right after an OD of coffee and a slashcrap news story!

  17. Price per kw? by knightghost · · Score: 1

    What's the TCO cents/kw? If it's not economical then the money simply goes to someone else to put gas in their Ford 250.

  18. Let your smile be your umbrella ... by DeadDecoy · · Score: 1

    and go stand under a lightning bolt. :)

  19. 12.5 square miles of land??? by Darkk · · Score: 1

    That's crazy. Seems the more practical approach is build a solar array in space! This way you always have sunshine 24/7 with no worries of bad weather. More importantly land on earth can be left alone.

    The only concern I have about the space solar array is the method of transferring the energy towards earth's receiving stations using microwaves in megawatt power range. This would certainly cook some peeps if they ever misaligned the energy beam. I guess this will dispel the "spontaneous combustion theory."

    1. Re:12.5 square miles of land??? by Anonymous Coward · · Score: 0

      Why in space?
      There is a big unused space on earth with lots of sunshine called "Sahara".
      And guess what, they have a lot of SiO2 laying around!

    2. Re:12.5 square miles of land??? by TheRaven64 · · Score: 1

      Imagine that you have a magical way of getting the power down from orbit.

      Now imagine that the solar cells weight 1g per square metre (maybe their made of something about 1% the density of paper). This gives approximately 32 thousand kilograms of solar array.

      Now, assume you already have a working space elevator, and you can get stuff into orbit for only $3000 per Kg.

      The cost of deploying this plant (made with fictional magic materials, using magic for power transport and deployed with a purely theoretical device) would be $96m (on top of the cost of producing the cells).

      Now, the real weight of solar cells is at least three orders of magnitude more than that (making it $96b) and the cost of getting it up there is probably going to be an order of magnitude more (typically around $20K per Kg) if you are forced to use rockets.

      Congratulations, you have spent over half a trillion dollars, achieved a marginal improvement in efficiency, and vastly increased maintenance costs. Do you work in government, by any chance?

      Now, if you can build the panels in orbit using material harvested from near-Earth asteroids, then the economics are different. At the moment, we are at least a decade or two away from being able to do that, however.

      --
      I am TheRaven on Soylent News
    3. Re:12.5 square miles of land??? by couchslug · · Score: 1

      "That's crazy."

      No. There are plenty of large farms bigger than that.

      --
      "This post is an artistic work of fiction and falsehood. Only a fool would take anything posted here as fact."
  20. World's biggest solar plant... by OriginalArlen · · Score: 1

    that'd be a Sequoia, right? Hence California.

    ....mine's the one with the little windmill on the lapel.

    --

    Everything I needed to know about life, I learnt from Blake's Seven
  21. Where to put the heat? by Anonymous Coward · · Score: 0

    I think that's more an issue with a specific plant design than with the technology in general.

    It is not even specific to nuclear power plants.
    But if you produce eletricity by generating heat
    (like you do in a nuclear power plant, or any plant where you burn oil or coal), you emit heat.
    By theremodynamics you even in other cases have to
    generate more "disorder" which you easiest do by generating heat. That has to go somewhere.

    Can't you use radiative closed-cycle cooling, like in a big automobile engine?

    The problem here is the radiator. When you generate 1 Gigawatt of power, you have to get rid
    of between 0.5 and 9 Gigawatt of heat.
    So you have to either radiate the hole energy
    or heat something like air or water or get the
    heat somewhere else.

    The easiest way is evaporating water. The second
    is heating water. But for those you need water.

    Then you have heating air or radiating. But both
    is simply not feasable with that amount of power.

    Do you want to create a hair-dryer with 1GW of power? (strong enough to blow the air far enough to not bake the whole area around it. I doubt you would have much electricity left after that.

    And just radiating thus amount of power would
    need a gigantic radiator, or one really hot.
    (Though hotter than the inner cooling-cycles of the plant does not make sense). But if you pump
    the stuff around in many square kilometers of
    radiators, it might be cool enough to not fry the birds in the air. But then you again have needed vast amounts of area.

    1. Re:Where to put the heat? by QuoteMstr · · Score: 3, Insightful

      I see your point. But we can mitigate the problem:

      According to wikipedia, we can build turbines that reach 90% efficiency. That leaves us with 100MW of power to dissipate (not a 1GW "hair-dryer").

      First of all, the output of that turbine is going to be barely warmer than the surrounding air. (Think about it: if it weren't, you could use it as the input to another turbine stage.)

      Sure, there will be a lot of this output, but it won't be particularly hot. Also, I imagine you'd use a condensing turbine, so you get most of your original cooling fluid back. What's left is a large volume of warm, dry air. Lots of industrial processes produce that kind of output today, and we don't see birds dropping out of the sky.

    2. Re:Where to put the heat? by Anonymous Coward · · Score: 0

      First of all, the output of that turbine is going to be barely warmer than the surrounding air. (Think about it: if it weren't, you could use it as the input to another turbine stage.)

      You would probably never see that, despite the output being significant. A secondary stage would reduce the efficiency of the first.

    3. Re:Where to put the heat? by Anonymous Coward · · Score: 0

      First of all, the output of that turbine is going to be barely warmer than the surrounding air. (Think about it: if it weren't, you could use it as the input to another turbine stage.)

      You need a temperature (or pressure, but that
      is temperature) difference to make your turbine
      work. if you cannot cool the other end effectively
      enough, it will not produce much electricity.

      What's left is a large volume of warm, dry air. Lots of industrial processes produce that kind of output today, and we don't see birds dropping out of the sky.

      Many industrial processes have a heating problem, and of course they cannot kill the birds. That why
      they usually put the heat into evaporating water
      to get it out fast enough. (here in Europe where
      distances are shorter, many industrial processes have the problem that the cities do not like them to do this in the winter, when the water in the air will finally get "industry-snow" or ice. So they have to reduce their power in the winter, which they do not like.)

      Also nuclear power plants use massive amounts of water evaporate it in gigantic towers and produce
      steam visible from far away. Some have to pay nearby cities absurd amounts of pay for darkening
      them by that.

      So if you have an solution for this problem you claim. please contact the power plants and other
      plant owners around here. They will pay you absurd amounts if your solution works....

    4. Re:Where to put the heat? by QuoteMstr · · Score: 1

      Point. Can you use seawater, at least, as a coolant? Europe has a long coastline.

    5. Re:Where to put the heat? by electrostatic · · Score: 1

      It's the overall thermodynamic efficiency that rules. This is a simple function of max temp and min temp: max possible efficiency = 1 - max/min (absolute temps), a physical limit which is never fully reached.
      The value for a good nuclear plant design is 41%. This means that for every gigawatt generated (100-41)/41 = 1.4 gigawatts of heat must be dumped to the environment. And this value isn't much lower that follil power. efficiency Nuclear is the way to do it.

    6. Re:Where to put the heat? by electrostatic · · Score: 1

      Oops, hit Submit too soon. Last sentence should be:
      And this value isn't much lower than for fossil power efficiency, also in the low 40s. Nuclear is the safest and lowest cost method for producing large amounts of power. All the big problems are political, not technical.

    7. Re:Where to put the heat? by ksd1337 · · Score: 1
      It wouldn't be as efficient as freshwater for several reasons:
      1. Saltwater would corrode the piping used to carry it to and from the reactor (though this could probably be avoided if the piping is corrosion-treated.)
      2. Saltwater doesn't cool as fast as freshwater (put a cup of saltwater in the freezer, it doesn't freeze that easily.)
    8. Re:Where to put the heat? by Jorophose · · Score: 1

      And why not pipe it to heat homes / industrial zones?

    9. Re:Where to put the heat? by Anonymous Coward · · Score: 0

      Please think before posting.

      Most commercial power generation schemes use multiple stages of turbines. While a secondary stage may reduce the efficiency of the first, it still increases the overall efficiency. Many turbines themselves are multi-stage conglomerates specifically designed to maximize efficiency at a specific temperature differential (so long as the turbine is mass produced such an equation also maximizes profit generated by that turbine, because it is technically designed to maximize profit, not efficiency, it just happens that maximizing profit under a mass production environment is the same thing as maximizing efficiency). The trouble is that after enough complexity there isn't enough returns for further increasing the complexity.

      Think about it from a simplified problem (there are many more variables):
      A company wants to build one power plant under the following specifications:
      100 units/day of potential power
      each turbine is 40% efficient
      each turbine costs $10/day
      the company can get $1/unit of power

      How many generators does the company use? How efficient will the plant be?

      answer:
      1 turbine = 100*.4 - 10 = $30/day profit
      2 turbines = 100*.4 + 100*(1-.4)*.4 - 2*10 = $44/day profit
      3 turbines = 100*.4 + 100*(1-.4)*.4 + 100*(1-.4)*(1-.4)*.4 - 3*10 = $48.4/day
      4 turbines = 100*.4 + 100*(1-.4)*.4 + 100*(1-.4)*(1-.4)*.4 + 100*(1-.4)*(1-.4)*(1-.4)*.4 - 4*10 = $47.04/day

      The company will use 3 turbines to maximize profit at 78.4% efficiency.

    10. Re:Where to put the heat? by Taerinshar · · Score: 1

      I agree with your first point, salt water is bloody annoying to work with. That and performing maintenance on a nuclear reactor to replace corroded elements would probably involve shutting the reactor down.

      However, they should both cool equally well. When cooling hot objects with a cold fluid, the important characteristic of the fluid is heat capacity (how much heat the liquid has to absorb before raising in temperature), not freezing point. The addition of salts to water lowers the freezing temperature of the solution and thus takes longer to freeze. Adding small concentrations of salt shouldn't have a big impact on the heat capacity of your coolant.

    11. Re:Where to put the heat? by fprintf · · Score: 1

      Your #2 example does not compute. Saltwater doesn't freeze that easily because the freezing point of saltwater is so much lower than the freezing point of freshwater. As my 10 year old daughter pointed out to me this weekend, that is why they put salt on the roads in the winter time. This does not correlate to the cooling efficiency of saltwater, though there could be other explanations why saltwater is less efficient (I do not know if it is or not).

      --
      This post brought to you by your friendly neighborhood MBA.
  22. Can Someone explain to me... by Anonymous Coward · · Score: 0

    How cost competitiveness works?

    "...which is under a state mandate to get 20 percent of its electricity from renewable sources by 2010...it expected the new plants to be competitive with other renewable energy sources..".

    This sounds like a mandated state requirement, and competition only against those competitors who are worse than you.

    Long Live the Glorious Marxist Republic of California!

  23. Deserts by QuoteMstr · · Score: 1

    The desert is not full of human life. When we protect the environment, we ought to do it protect human interests, not because the environment has some moral rights. When you train a cat to use a litter box, do you do it because you believe the carpet has moral rights and needs to be protected? Well, I do it so I don't have to deal with the smell.

    The desert simply doesn't have much to offer man except mineral resources and wide-open tracks of land for exactly these kinds of projects.

    I see what you mean about nuclear power too. But on the other hand, nuclear power is so plentiful that if, as a condition of constructing them, we have to locate them far from population centers and live with transmission losses, so be it. They're still our best bets.

  24. Large scale solar panel plants will be a diasaster by Joce640k · · Score: 2, Insightful

    Whatever technology they use it'll be out of date before they finish installing 12.5 square miles of the stuff, and replacing it will mean starting from zero.

    Compare this with thermal plants (mirrors focused on something to heat it up). The mirrors and focusing system remains the same, you just change the central element.

    Thermal plants are far more sensible at the moment. This plan is yet another example of environmentalism gone mad.

    --
    No sig today...
  25. large-scale != good by NickGnome · · Score: 1

    Why do so many people seem to assume that local, government-backed monopolies with large territories are the most efficient way to generate and distribute electricity?

    It can be efficient to have gas-fired units generate for 15 square blocks or a single factory.

    I'd much rather see wind-mills and solar panels scattered all through suburbia, with lots of competition, than big "wind farms" or "solar farms" in just a few places. It'd be better from the anti-terrorism angle, too.

    Economist Walter J. Primeaux (U of Texas at Austin, U of Illinois) researched these unnatural monopolies back in the 1970s and 1980s. Other economists looked into the X efficiencies created merely because there was competition, even if it was only on the basis of quality of service. There were dozens and dozens of articles in the journals, the trade publications, and a few popular media reporting on the advantages of competition, though they hardly reached most main-stream media radar screens. Vail and Insull created quite a bit of meme-inertia with their propaganda campaign of a century ago.

    1. Re:large-scale != good by QuoteMstr · · Score: 1

      That's the Edison approach, and hardly a new idea. If it worked, we'd be using it today. There's no vast conspiracy. Large economies of scale do work, and you can't dismiss the concept of scale by wishful thinking.

  26. government crap by celle · · Score: 1

    And why isn't the government just paying to put solar on everyones roof and doing away with a major part of the grid? Save at both ends. Self-enforced conservation and fewer costly infrastructure requirements. Of course, then the corporate and government swine can't screw the public.

  27. Re:Large scale solar panel plants will be a diasas by QuoteMstr · · Score: 1

    As I understand it, photovoltaic panels are useful on cloudy days, while solar thermal installations only work in full sun.

  28. all big machines can be dangerous by Anonymous Coward · · Score: 2, Insightful

    An ancestor of mine was killed in the works of a water powered grist mill in 1747. Another was killed in a buggy accident in 1911. I can drive in half an hour to the site of a coal mine disaster that killed over 200. If we build wind mills by the tens of thousands it's going to cost lives.

    1. Re:all big machines can be dangerous by Jeremi · · Score: 1

      If we build wind mills by the tens of thousands it's going to cost lives.

      On the other hand, if we stick with fossil fuels for the forseeable future, that will also cost lives. If we build nuclear plants, that too will cost lives. In fact, no matter what we do, there will be accidents and sometimes people will die in those accidents. That's life.

      --


      I don't care if it's 90,000 hectares. That lake was not my doing.
  29. Scale Required (boring statistics within) by bill_mcgonigle · · Score: 4, Informative

    So, what would it cost to replace California's carbon point sources with 'renewable' (I know it costs energy to make these things) energy? I'll share my math, others can expand:

    It says here that California in 2007 used 230,931 of 'non-renewable' energy. It says here that California's peak demand was 52,863 MW when total usage was 265,000 GWH (2002). Adjusting to the current levels, a 14% increase, we get a current peak of 60,264 MW.

    So, if these solar plants can produce a combined 800MW, you'd need 75 of these projects to handle peak energy generation. If we factor in 10% for transmission losses, and another 14% increase over the next six years (while they get built) then you're looking at 94 of these projects, which is really two projects, so 188 plants, or by 2020, 214 plants, using 1,338 square miles of desert. That's only 5% of the Mojave Desert, ignoring mountains, ignoring environmentalist lawsuits preventing destruction of desert habitat, not thinking about what happens when Joshua trees want to grow up under solar panels (Monsanto Roundup?).

    So, that's 18 plants a year to build. It's probably possible, though what that would cost in rare earth elements, and what would the construction of such project do to the market prices of those rare elements? I don't know, except to think it would be bad.

    OK, so how about replacing natural gas, outside of electricity generation? Using the information from here it says that half of the natural gas is consumed for electricity generation, so we can double that part of the number for the total energy budget of electricity and natural gas. That increases the GWH total to 298,962 GWH, or a 29% increase. So, we're up to 276 solar projects.

    So, how about converting all the motor vehicles to plug-ins? It says here that CA uses about 24 Billion gallons of transportation fuels a year. This calculator puts that at 3,032,000,000 GW, or if divided by the number of hours in the year, gives 345,881 GWH (TODO: check units?). So, add to our current total and multiply by 2.16 and get 596 solar projects, at 3725 square miles, or about 15% of the Mojave Desert, and 50 of these solar projects a year to get CA largely carbon-neutral by 2020.

    Now, this is a bit of a simplification. This is meeting peak demand with current generation. There might be some opportunity for storage, though demand somewhat parallels light availability. What is the quoted efficiency, average (during what time period) or max? This doesn't count wind power as I don't know the rules of thumb for standby generation (I heard recently 90% standby needed to be in production for wind to account for variability and startup time). I'm assuming no new hydro will be built (probably safe). I'm assuming solar won't get more efficient (it will). I'm assuming the installed solar won't lose efficiency over time (it will). I don't know what the proper rule of thumb is for calculating demand based on time-of-day usage. etc. So, it's much complicated, but I wanted to understand what scope people were talking about when they advocate an all-solar solution.

    I'm also counting nuclear as 'non-renewable' in this calculation as folks who want all-solar usually are anti-nuclear. If you factor in the existing nuclear generation it gets a bit better. If you wanted to power CA on all-nuclear instead you'd need about 300 reactors covering 22 square miles of land, if they're like the 1.6GW one they proposed in Fresno. Or you could use newer, safer technologies instead and clean up our existing nuclear waste by feeding stuff currently bound for Yucca Mountain into these reactors and

    --
    My God, it's Full of Source!
    OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    1. Re:Scale Required (boring statistics within) by Maxo-Texas · · Score: 1

      We only have to lower oil usage by about 3% to cause it to collapse back to $60/bbl.

      This is the bane and the benefit. Solar is somewhere over $100/bbl. When you use it successfully, it makes itself grossly unprofitable.

      But it only takes a little conservation and extra power to tip the scales. The current run up in oil prices is based on an extremely narrow band of about 2-3 million barrels a day of expensive oil. The rest of the oil is quite cheap to get out.

      This is why no one wants to invest in alternatives-- because the more successful they are, the cheaper oil will be, and the more of a loss you will take on your successful investment.

      --
      She was like chocolate when she drank... semi-sweet at first and then increasingly bitter.
    2. Re:Scale Required (boring statistics within) by spage · · Score: 1

      I'm not sure where you're getting your kWh equivalent of gasoline but it's not the same as the energy released by burning gasoline. That's good because battery electric vehicles are much more efficient than combustion engines.

      Large solar plants have their place, but equally important is local power generation on your or your neighbor's roof. Follow the money to watch power companies and T. Boone Pickens pretend to support this while focusing on government subsidies for vast centralized renewable power schemes

      --
      =S
    3. Re:Scale Required (boring statistics within) by Anonymous Coward · · Score: 0

      If a typical home uses 30 to 40 kw (well take 30kw and unplug some wallworts, and air conditioning.)

      and the 2006 Census has California population at 36,457,549, (USA at 299,398,484)

      so we taker 30Kw * 36,457,549 people (mind you it's not HOMES) we get 1,093,726,470,000 minus the 800 MW = 1,085,726,470,000 of missing power, and let's not talk about night time or that it's 2008.

      Even is we put four people in each home it would be 271,431,617,500 Watts shy.

      And note that I drank a lot of beer coming up with these numbers.

    4. Re:Scale Required (boring statistics within) by Anonymous Coward · · Score: 0

      If we divide by two for night time we have 135715808750 missing watts.

      Buuuuurrrrrrrppppp! ah beer

    5. Re:Scale Required (boring statistics within) by bill_mcgonigle · · Score: 1

      I'm not sure where you're getting your kWh equivalent of gasoline but it's not the same as the energy released by burning gasoline. That's good because battery electric vehicles are much more efficient than combustion engines.

      Sorry, broken link. Here's the calculator I used. If you can shed any additional light on the numbers, please reply.

      It didn't seem preposterous to me that moving all of California's motor vehicle fleet would cost about double its fixed electric use, but you're right, if an IC engine is 20% efficient and an ultracapacitor-driven motor is 40% efficient then that definitely needs to be figured in. Do you happen know what the real numbers are?

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    6. Re:Scale Required (boring statistics within) by bill_mcgonigle · · Score: 1

      but equally important is local power generation on your or your neighbor's roof.

      I figured it would be good to look this up too. CA has about 7 million single family homes. If we were to assume 1000 square ft of usable space (half of a typical home's roof, for southern exposure, assuming east-west siting) CA could generate 7% of its energy needs by covering all available single family home roof space with solar, if those small plants can generate at the same efficiencies.

      Given that many homes wouldn't have ideal exposure and that efficiency would probably be lower on small installs, 4% might be a reasonable guesstimate. Businesses would be a bigger win, but even optimistically with all housing and business roofs covered, you might achieve 15%? I wonder what that would cost.

      I think distributed solar has more than just economic advantages and decentralization can provide a degree of independence, but when I looked to do my house this spring with solar hot water (more efficient than PV per $) it was 5x beyond break-even. It's worth noting that in that system I believe it was a market price, not a cost-plus price, which I figured to be in the break-even range, if supply were great enough.

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    7. Re:Scale Required (boring statistics within) by spage · · Score: 1
      • Wikipedia's semi-orphaned Engine efficiency article says "Modern gasoline engines have an average efficiency of about 25 to 30% when used to power an automobile"
      • Wikipedia's Electric car article claims "A typical charging cycle is about 85% efficient[citation needed], and the discharge cycle converting electricity into mechanical power is about 95% efficient, resulting in 81% of each kWh is put to use".

      That's why battery electric vehicles are a economical+environmental win, even if powered by expensive electricity from a coal plant—much, much more efficient than making a lot of heat and a little forward motion.

      If you can shed any additional light on the numbers, please reply.
      Sure, but put this on a web page, it's important stuff!

      --
      =S
    8. Re:Scale Required (boring statistics within) by bill_mcgonigle · · Score: 1

      * resulting in 81% of each kWh is put to use".

      Awesome, thanks!

      Sure, but put this on a web page, it's important stuff!

      I know, I know, it's on my short-list now, I swear! :)

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
  30. Re:INTERNET IS NEVER THE ANSWER by Jah-Wren+Ryel · · Score: 1

    An internet means copyright violations. The two are inseperable. The only way to eliminate copyright violations is to destroy internet technology and ensure that nobody ever rediscovers it. The only way to ensure the end of internet proliferation is to cease development of internet technology in ALL FORMS, and destroy any existing internet technology.

    The supposed benefits of internets (which I find highly dubious and false) do not justify the continued existence of copyright violations which can destroy all life in Hollwood.

    --
    When information is power, privacy is freedom.
  31. Oooooh.... by Anonymous Coward · · Score: 0

    Everything's big in America!

  32. Re:INTERNET IS NEVER THE ANSWER by Anonymous Coward · · Score: 0

    Delicious copy pasta!

  33. Not the biggest by AmigaMMC · · Score: 1

    I'm sorry I don't have a reference handy, but last month the European Union announced a solar plant project that will take a good chunk of the Sahara desert to power all of Europe, so I guess that would be the biggest plant in the world.

    1. Re:Not the biggest by bdenton42 · · Score: 1

      At least that's better than TFA which shows a large chunk of otherwise good farmland being taken up by a solar array in Germany.

  34. Who shot by iminplaya · · Score: 1
    --
    What?
  35. Could it be worse? by bdenton42 · · Score: 1

    I'm curious what the carbon impact of 12.5 square miles of solar panels vs 12.5 square miles of forest.

    On the one hand you're not burning oil, on the other you're preventing light from reaching massive amounts of land, so no plant life will exist there.

    Granted you can cover the deserts with solar panels, but beyond that would it be worse than burning fossil fuels?

  36. Why the ranting? by ckuttruff · · Score: 1

    How about:
    Gee, this might be good news. I've seen people respond cynically to some of these posts about solar and alternative energy because they assume nothing will really be done about it. Well, here's proof of practical application.

    Glad my state is setting an example.

  37. California needs 10GW of solar power. by Animats · · Score: 1

    There's a lot of solar power generation going into Mojave. This project is only one of the ones going in or already running. Right now, there's about half a gigawatt of installed solar capacity at Mojave. Several companies are putting in new plants. Some use solar panels, some use concentrator cells, and some use mirrors to heat oil to make steam.

    About 10 GW is needed to cover peak Southern California air conditioning load. That's what to go for, and at peak-hour bulk power prices, it makes money. Solar power and air conditioning load peak at the same time, which works out nicely. (Wind is cheaper but somewhat random. Even averaged over a wide area, you get maybe 80-90% uptime at best, so you need other sources which are "dispatchable", that is, will deliver power when asked. About 15% of capacity can be met from wind wind without a need for extra dispatchable capacity.)

    10GW in 10 years is well within reach, and will probably happen from commercial activity. 10GW in 2 years is unlikely, but 10GW in 5 years is probable.

    This won't help with base load. California's base load is about 19GW; that's the low level at night. That should be on nuclear power. California has about 4GW of nuclear power now, (two plants, 4 reactors) and that needs to be increased by about a factor of 4 to 5.

    Siting nuclear power plants may be a solveable problem. It used to be hard to find sites for prisons, but small towns with declining industry started competing for them, and now Northern California has many prisons, all in rather remote areas. A similar competitive approach might be used to site nuclear plants. All new plants should be in green earthquake zones, toward the eastern edge of the state.

    If both of those things get done, most of the rest of California's power will come from existing hydropower sources, with peaking from natural gas. Al Gore's

    1. Re:California needs 10GW of solar power. by evilviper · · Score: 1

      10GW in 10 years is well within reach, and will probably happen from commercial activity. 10GW in 2 years is unlikely, but 10GW in 5 years is probable.

      I wouldn't start making aggressive predictions just yet. If oil prices start sliding downward (which is likely, to a point), prices on other fossil fuels will drop as well, and all these planned solar and wind plants won't look like as good of an investment anymore. We went through the same thing in the 70s due to OPEC's embargo, with alternative energy springing up everywhere, only to stagnate and slide backwards once the immediate and sharp price-pressure was off.

      Once that happens, big government incentives have to be there, or else it's all over when the immediate commercial pressure goes away.

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    2. Re:California needs 10GW of solar power. by ivan256 · · Score: 1

      Solar will be self-limiting economically anyway. People fool themselves with "economies of scale"... In the case of solar, you'll likely see the price get driven up with large scale adoption as the price of resources used to make the panels jumps due to the increased demand...

    3. Re:California needs 10GW of solar power. by evilviper · · Score: 1

      In the case of solar, you'll likely see the price get driven up with large scale adoption as the price of resources used to make the panels jumps due to the increased demand...

      That's not at all true with solar-thermal. The latter of which is what 80%+ of solar power plants are, due to reduced installation cost, maintenance, and slightly higher efficiencies. PV really only makes sense on roof-tops and small portable power needs. Why this design uses them is beyond me.

      It is true with current photovoltaics, but non-silicon based PV alternatives are in the works. Some are currently being made, just at higher costs, with the hope that prices will drop "any time now".

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  38. Re:Large scale solar panel plants will be a diasas by Nit+Picker · · Score: 2, Insightful

    How will you dump the waste heat in the desert? ANY thermal plant works by, in effect, charging a toll on heat flowing from a source (focal point of a mirror, a fire, a nuclear reaction, etc) to a sink (cooling tower, large body of water, dry air cooling structure, etc.). If a nuclear plant has so much trouble dumping the heat in an arid region, why won't a solar thermal plant have the same trouble? (Or even more if the source temperature is less that the 500C or so for a reactor.)

  39. You joke but... by Quiet_Desperation · · Score: 5, Insightful

    Sadly, that *is* how a lot of people think. Not only that, but they did a survey years back and found that a huge chunk of people thought Three Mile Island was a near-Chernobyl level disaster with deaths and lots of released radiation, rather than an fine example that even those old safety systems actually worked.

    The bulk of the human race is living in a fantasy world where about 5/6 of what they believe is utter bullshit. And it seems pretty constant across the globe. Different areas just have local varieties of bullshit.

    1. Re:You joke but... by Jedi+Alec · · Score: 1

      The bulk of the human race is living in a fantasy world where about 5/6 of what they believe is utter bullshit. And it seems pretty constant across the globe. Different areas just have local varieties of bullshit.

      Any chance we can convert the bullshit to biogas? ;-) Should solve the whole debate in a single go really.

      --

      People replying to my sig annoy me. That's why I change it all the time.
    2. Re:You joke but... by Atario · · Score: 1

      The bulk of the human race is living in a fantasy world where about 5/6 of what they believe is utter bullshit.

      You seem suprised by this. How else do you think any of the Republican US presidents since Eisenhower got elected?

      --
      "A great democracy must be progressive or it will soon cease to be a great democracy." --Theodore Roosevelt
    3. Re:You joke but... by notadoctor · · Score: 1

      ...or any of the Democrat US presidents for that matter?

  40. Scale by TheSync · · Score: 1

    So these plants will generate 800 MWe peak using 12.5 square miles.

    For reference, Manhattan Island is 22.7 square miles, so they will be a bit larger than half of Manhattan.

  41. Not in my backyard! by SL+Baur · · Score: 1

    "Two photovoltaic solar power plants will be built in San Luis Obispo County in California

    Oh wait ...

    Well, so long as it near Paso Robles or Carissa Plains, I won't worry overmuch.

  42. Re:Large scale solar panel plants will be a diasas by Anspen · · Score: 1

    Who cares if it is out of date? It will still generate the promised amount of KW hours, for the next few decades.

  43. People have a right to fear nuclear power by GodfatherofSoul · · Score: 1

    While most concerns may not be logical, historically there's been a lot of misinformation and outright deception produced by the pro-nuclear crowd. Look at the cover-ups that invariably accompany nuclear accidents. Look at the reaction of business interests after the 3 mile island accident ("nothing to see here, move along").

    Same with Yucca mountain. Apparently there was misinformation broadcast about the actual safety of that site. So, you can denegrate the anti-nuclear crowd as a bunch of tree-hugging Luddites, but I respect their fears (note: I like the idea of nuclear power but I want to see a change in the arrogant, dismissive way nuclear power is advocated).

    --
    I swear to God...I swear to God! That is NOT how you treat your human!
  44. They Do Get Tax Breaks by bill_mcgonigle · · Score: 1

    The problem isn't that oil companies are getting tax breaks

    I'll be the last person in line demanding any kind of windfall profits tax, but oil companies get a 'depletion allowance'. That is, they can sell their oil, then write off that oil as no longer being an asset, much like you'd depreciate a fixed asset.

    One or the other, not both. And oil in the ground won't 'go bad' in our lifetimes.

    --
    My God, it's Full of Source!
    OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
  45. Why would anyone put capitol at risk in Califorina by anwyn · · Score: 0, Troll

    Why would anyone put capitol at risk in the people republic of California? The State Legislature may confiscate the investmet and use the money to buy votes. It has already done this to power distribution companies by requiring them to sell power at less than cost, putting them into bankruptcy.

    It makes absolutely no sense for anyone to put capitol at risk in California. If you make a profit you are rich and therefore a suitable target for confiscation.

    California is a third world country that does not know it yet.

  46. Re:Large scale solar panel plants will be a diasas by aXis100 · · Score: 1

    Deserts seem to have no problems radiating their daytime heat into the night sky - so well that they can get below freezing. Either fin fans or a ground loop could be used as the heat sink.

  47. Spotlight fallacy by Anonymous Coward · · Score: 1, Funny

    It's called the spotlight fallacy, and by trying to attach it to environmentalism, you're making use of the fallacy yourself. Hypocrite.

  48. Collecting infrared rays at night = bogus by the_povinator · · Score: 1

    RE the article on how to collect infrared rays at night - way to violate the third law of thermodynamics! They seem to be proposing to absorb infrared rays and rectify the electromagnetic rays somehow. The only way this would be possible - even theoretically - is if the absorber were kept at a lower temperature than the incoming rays, yet I see no mention of this and I get the impression that someone is blissfully unaware of certain well known truths in physics (e.g. the third law, which states that entropy must increase). To spell it out, without a heat sink the proposed idea would provide a way to convert heat (not a heat difference) into usable energy, which violates the third law.

    --
    The .sig is dead, and I believe I had a hand in killing it.
    1. Re:Collecting infrared rays at night = bogus by TheRaven64 · · Score: 1

      It's not collecting heat, it's collecting photons in the infra-red range.

      --
      I am TheRaven on Soylent News
    2. Re:Collecting infrared rays at night = bogus by meringuoid · · Score: 1
      It's not collecting heat, it's collecting photons in the infra-red range.

      Same thing. A photovoltaic can be viewed as a heat engine with the source at about 5780 Kelvin and the sink at maybe 300, which makes for an efficient conversion. But it's still subject to the laws of thermodynamics. Suppose I put an infrared-spectrum photovoltaic inside a black box at an ambient 300K. The inside of that box is now full of infrared photons with a thermal spectrum corresponding to the temperature. The photovoltaic is linked to a wire running to a standard incandescent lightbulb outside the box. Will the lamp shine? If it does then we have an engine that produces an energy output from zero temperature difference, and violates the second law of thermodynamics. That black box is a perpetual motion machine.

      Then again, in the case of a solar array it might be possible. In the day the sun is hotter than the array; at night, the sky is colder than the array. It's quite conceivable that some clever engineering might be able to exploit that temperature difference to produce a little extra energy.

      --
      Real Daleks don't climb stairs - they level the building.
  49. only the last part is really a bottleneck by Trepidity · · Score: 1

    The enrichment technology is the only real bottleneck these days, in particular the tricky bits of technology needed to build centrifuges that can enrich to weapons quality.

    The actual bomb designs are extremely widely published these days, at least for simple fission bombs.

    1. Re:only the last part is really a bottleneck by BlueParrot · · Score: 1

      For a primitive weapon based on highly enriched uranium that may be true, but an implosion style weapon, as is more or less necessary if you are to use plutonium, is much more tricky. You don't just "put two pieces together".

  50. Re:Why would anyone put capitol at risk in Califor by evilviper · · Score: 2, Informative

    California is a third world country that does not know it yet.

    Nice troll. It's always in the run-up to an election that the right-wing shills come out in-force.

    How many 3rd world countries do you know that have a larger economy than all but 8 (out of 190) countries (ironically, including the USA) around the world?

    There isn't ONE state, country, city, municipality, etc., that hasn't, at one time or another, done something a bit unfair and/or short-sighted. Just try and name one.

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  51. World's Largest Solar Plant in California? by Nefarious+Wheel · · Score: 1

    Come to Australia, mate. I have a hibiscus that wants that title. Last time I gave it an audit it was in the process of taking over a sheep station in the far north of Queensland.

    --
    Do not mock my vision of impractical footwear
  52. Zero Waste by mosb1000 · · Score: 1

    By reprocessing it we can reduce it to zero. We can remove and recycle all of the transuranic elements from spent nuclear fuel. All you have left is uranium (which occurs naturally, so could hardly be considered nuclear waste) and fission products, which will decay over a few hundred years into non-radioactive substances.

    If we use the breeder cycle, we can eliminate all waste except the fission products, and we'll get more total energy too.

    But reprocessing fuel eliminates on of the main benefits of Nuclear - cost. Reprocessing as it is done today is expensive. A pound of reprocessed fuel is more expensive to produce than a pound or mined and enriched uranium. If we were to switch to molten salt reactors, reprocessing would be much less expensive because it would eliminate the need for handling fuel elements (molten salt reactors have a liquid core).

  53. Portugal Biggest Solar Plant ! @ SERPA by Anonymous Coward · · Score: 0

    http://www.youtube.com/watch?v=yDixxAS820U

    Portugal has started work on what will be the world's biggest solar power plant - a 52,000 photovoltaic module, 11-megawatt facility covering a 60-hectare south-facing hillside in the southern Alentejo region.

    According to the BBC, the cost of the monster 'leccy factory is 58m - or £40m in old money - for which the Portuguese will get enough juice for 8,000 homes.

      The project is funded by General Electric Energy Financial Services who've provided the cash for indigenous renewable energy power company Catavento's eco-friendly initiative.

    Catavento's Piero Dal Maso declared: "The Serpa solar power project, along with other renewable energy initiatives, helps lay the foundation for Portugal's energy future. The project takes maximum advantage of the excellent environmental conditions in Portugal for solar power."

    However, and as many of you might have spotted, supplying green juice to just 8,000 homes will hardly allow Portugal to tell OPEC to take a running jump. Dal Maso admitted: "It is a drop, but we think in Portugal that it will make sense to use renewables to get away from oil issues and the dependency on energy from outside which we have in Portugal."

    The plant will, once completed, have another green string to its bow: the solar panels will be mounted two metres off the ground, allowing sheep to graze the grass below in delicious shade. ®

  54. collecting Infrared? Hurt G.W.? by lpq · · Score: 1

    If we collect the infrared rays then won't all those cute animations have to be rewritten to show a different method of heating? What will be reflected back by the CO2?

  55. Cost by Jack+Karle · · Score: 1

    I come from a 30 career of electronic manufacturing infrastructure stuff. It scares me to think of the environmental cost of manufacturing a 12 square mile silicon chip. And yes, I'm thinking about the cost of most of the stuff involved in doing it... the chemical required, the electrical power (enormous, but I don't have a kJ number) building the plant to do it, the people to do it, the whole enchilada). Do you know that most of the power requirement was from COAL? Jeeeeezeeee

    --
    Jack Karle ""Only two defining forces have ever offered to die for you: Jesus Christ and the American G.I. One died for
  56. Heat argument is largely specious by Anonymous Coward · · Score: 0

    The Earth receives around 150,000 TW in solar irradiation.

    You could create 1,000 large nuclear power plants each dissipating 1 GW of waste heat for a total of 1 TW, and it would still only amount to 1/150,000 of what we receive from the Sun.

    In other words, on the planetary scale, the effect of such "collosal" heat dissipation is effectively nil, totally unmeasurable.

    Local heating is much more relevant of course, but you don't put those 1,000 power plants in the same spot.

  57. Re:Large scale solar panel plants will be a diasas by Anonymous Coward · · Score: 0

    Perhaps because heat radiates at x^4 degree of the temperature difference? i.e. a 500* difference radiates out at 625x as fast as a 100* difference.

    The key to this is that, say in a stirling engine, a big hunk of solid metal aka a heat sink can take a 500* delta, whereas a pipe that carries a fluid (non-evaporative cooling tower) generally has pressures issues with that delta.

  58. That's Nice by Ranger · · Score: 1

    Wake me when it actually goes online.

    --
    "You'll get nothing, and you'll like it!"
  59. ManBearPig is Real! by teko_teko · · Score: 1

    The fact that the same people who are talking about our impending doom due to coal are the same people that won't allow the only reasonable alternative (nuclear) is all anyone should need to realize global warming is a hoax.

    ManBearPig is real. It has entered our world through the portal from the Imaginationland. It's half man, half bear, and half pig. We have to stop it before it kills more human.

    Excelsior!

  60. Re:Large scale solar panel plants will be a diasas by be951 · · Score: 1

    Whatever technology they use it'll be out of date before they finish installing 12.5 square miles of the stuff

    Meaning what? Not the latest and greatest? I'm not aware of a rush to decommission other types of power plants just because they aren't the latest and greatest.

    and replacing it will mean starting from zero.

    Why? I can't think of any power generation technology that is more modular than PV solar. Why couldn't you swap out or add newer panels?

    Thermal plants are far more sensible at the moment.

    I don't know the specifics of the renewable energy mandate PG&E is working under, but I would expect that any solar qualifies. And it seems they (PG&E) would choose the best type of plant for their needs. I'm not saying you're wrong about PV vs. thermal solar, but with the number of dollars at stake, I'm pretty sure someone has done a comparative analysis of many different options (including ignoring the mandate and facing any fines and penalties that would result).

  61. Re:Large scale solar panel plants will be a diasas by ivan256 · · Score: 1

    California essentially has a direct democracy. That means the majority of the people making any given decision aren't experts on the subject. The results are conveniently public, which means we can all point and laugh.

  62. Re:Why would anyone put capitol at risk in Califor by ivan256 · · Score: 1

    California is special though. They do something like that approximately once a week.

    Also, you should check your math. Since California only accounts for just over 10% of the US economy, it's not just unlikely... It's mathematically impossible for California's economy to be larger than the US economy.

  63. Re:Why would anyone put capitol at risk in Califor by evilviper · · Score: 1

    California is special though. They do something like that approximately once a week.

    No, it isn't. Remember Deregulation? Enron? That was good old California doing the Republican thing, and letting power companies set their own prices. Doing the opposite now can only be a good thing.

    CA has a more balanced electorate than most states, with about 45% voting Republican, often electing Republican governors (like the current Governator), and in the not-too distant past, being won by Republican presidential candidates. There are numerous Republican House Reps from CA, including good old "Duke" Cunningham (Mr. Kickbacks himself) and Jerry Lewis (Ranked #1 in Federal Government Pork).

    The idea that CA is some bastion of socialism couldn't be further from the truth. With a couple more years of Mexicans streaming over the border, and it'll go even more to the right.

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  64. Re:Why would anyone put capitol at risk in Califor by evilviper · · Score: 1

    Also, you should check your math. Since California only accounts for just over 10% of the US economy,

    13% actually, which is FAR larger than any other of the 50 states, even the geographically larger ones like TX. The CA population is #1, but not much larger than several other states.

    And if CA starts to slip, the rest of the US, and in fact the world, is in very deep trouble. Most of the world's airplanes are developed, designed, built, tested, etc., in CA. The vast majority of the jet engine industry is located in CA. All the major technology companies are centrally located in CA: Intel, AMD, Google, Sun, IBM, etc. Hollywood is still turning out TV shows and movies that are shown around the world. Pretty much everything that the US has, that other countries want to buy (keeping the trade deficit from ballooning) is being developed in CA. Forget a couple measly little banks... If CA starts having economic problems, the US is in worse trouble than it has ever seen.

    It's mathematically impossible for California's economy to be larger than the US economy.

    I think you misread my comment. It's ironic that the US is one of those 8 countries with a higher GDP than California, since CA is contributing substantially to the US economy.

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  65. hmm by Trepidity · · Score: 1

    That may be true as far as engineering tolerances go, but as far as design knowledge goes, I thought the design of the 1945 "Fat Man" bomb was pretty widely disseminated by now, so you could just use that.

  66. Re:Why would anyone put capitol at risk in Califor by ivan256 · · Score: 1

    I think you misread my comment as having partisan bias.

    Neither party has cornered the market on stupidity. If you look at other comments in my thread, you'll see that I've picked on them for having such a direct democracy... Not for being a bastion of socialism.

    In California, you live/do business at the whim of the voters. There is no other state that operates that way. We have a representative republic for good reason.

  67. Re:Why would anyone put capitol at risk in Califor by ivan256 · · Score: 1

    I think you misread my comment. It's ironic that the US is one of those 8 countries with a higher GDP than California, since CA is contributing substantially to the US economy.

    You're right. Oops.