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Americans Favor Moratorium On New Nuclear Reactors

An anonymous reader writes "While a drop in public support for nuclear power would be expected after an incident like the Fukushima reactor crisis, the nuclear disaster in Japan has triggered a much stronger response among Americans. When Japan — the nation that President Obama held up as an example of safe nuclear power being used on a large-scale basis — is unable to effectively control its considerable downside, Americans are understandably leery about the same technology being used even more extensively in this nation. And safety concerns about the existing nuclear plants also deserve serious attention."

40 of 964 comments (clear)

  1. So uh by Anrego · · Score: 5, Insightful

    Seeing a large nuclear disaster has made people wary of nuclear power.. now that's just shocking!

    All seriousness though, between the American media fear mongering and the fact that there is actually something to be afraid of, this isn't too surprising.

    I still personally think that nuclear power is the best bet. I imagine (and this is an uneducated opinion) all the junk coal and oil plants pump out under regular circumstances is probably going to kill more people than the japan nuclear crisis over the long run, and alternative energy just isn't close enough for people to wait.

    1. Re:So uh by AlecC · · Score: 5, Informative

      According to New Scientist, coal kills about 13,000 Americans per annum. In a chart in their most recent edition, coal is by far the most lethal power source per billion GWh generated.

      --
      Consciousness is an illusion caused by an excess of self consciousness.
    2. Re:So uh by SomeKDEUser · · Score: 5, Insightful

      This is true. People don't realise it but when you are thinking about energy policy, you are making a 50-year bet. So now the bet looks something like that:
        - there will be no oil
        - there will be lots of coal
        - there will be uranium
        - there should be wind and sun

      but also
        - geothermal might become practical
        - carbon sequestration might become practical
        - solar cells might become more efficient
        - most cars will be electric
        - global warming is a threat
        - oil/gas producers are not always nice nations.

      So demand in electricity will go massively up as oil is phased out. But you don't want to release too much CO2. Biofuels are probably not a good idea. So you are left, now with two possible strategies:
        - use coal as a stopgap for renewables/fusion
        - use nuclear as a stopgap for renewable/fusion
        - maybe gas is an option. If you don't mind dealing with bloody tyrants.

      If you believe in climate change, you will go down the nuclear route. Unless you are so committed against nuclear power that coal is the only option no matter what (Germany, a very, very green country battles against carbon caps in the EU, because they know nuclear is politically toxic and coal is their only option -- in my opinion this is crazy stupid).

      Of course you must develop all alternatives as much as you can. This is the only long-term solution, but in energy, this means 40 years. And elections are every 4...

    3. Re:So uh by fuzzyfuzzyfungus · · Score: 4, Insightful

      I suspect that most of the public reaction is, indeed, a visceral response to the current incident. Emotional, and not likely to last all that long(particularly given that, with incomes flat or declining among the bottom 4 or 4.5 quintiles, and energy costs rising, people are going to grasp at anything that pretends that they will be able to keep on living their familiar suburban existence.

      What I find disconcerting about the whole thing is not so much that a given 60's era reactor design didn't cope all that well when exposed to atypically gigantic earthquake and tsunami conditions; but that plant HQ has, apparently, been slimy and dubiously transparent about their somewhat cavalier risk management practices for decades, they've only just had it bite them public-ally.

      The "zOMG, nuclear power always causes 3-eyed rats and flipper babies made of pure cancer!" brigade is out to lunch. However, unfortunately enough, the "nuclear power has the potential to be safe; but its operation always seems to end up in the hands of penny-pinching scumweasels who do their best to fail to live up to that promise." is more history than hypothesis.

      Until the engineers manage the historic leap of creating a design that managers can't fuck up, certain concerns will remain entirely valid(to be fair, most of those concerns validated, often with grotesque callousness, on a daily basis in other forms of power generation, just ask a coal miner...); but it is true that nuclear designs tend to underperform their theoretical engineering maximums for reasons that come down to frankly untrustworthy management.

    4. Re:So uh by Stepnsteph · · Score: 5, Insightful

      I agree with Anrego here.

      As a psychology major with, of course, an interest in sociology and human behavior in general, I don't really watch the "news". I watch the behavior of the presenters. I notice the emphasis that's added to certain words or syllables, the unnecessary dramatic pauses, the music & sound effects that are used, the flashy graphics, etc etc.. and then I think of the general uneducated public that's watching this.

      It breaks my heart in a way, to be honest. Our (or "U.S." for those elsewhere) media, and interest groups, are riding on the coat tails of the very real tragedy. Then turning on themselves (eg the "human shield" tripe) between the FUD.

      That's to be expected, I suppose, but it's why I turned (long ago) to the Internet to get real news. Thank goodness for international news sources and multi-lingual support.

      Of course the general public is afraid of tsunamis and 9.0 earth quakes and vague, unnamed super disasters.

      We need more high capacity power plants, and we need people to stop rejecting everything that's not a magic cure-all silver bullet because that's NEVER going to exist.

      I've written this before my first cup of coffee this morning, so my apologies if this doesn't come across quite as clearly as we would all like. Now I have to get ready to go. You folks have a great day.

    5. Re:So uh by Kreigaffe · · Score: 5, Informative

      http://en.wikipedia.org/wiki/Integral_Fast_Reactor

      that's just one, that i particularly like -- there's PLENTY of new reactor designs that include a 'kill switch'. there's a bunch of different ways of doing it, too, either with control rods that are suspended above the reactor and if power fails, fall automatically, or in the IFR in the case of loss of power the liquid sodium would naturally heat up, which sucks more neutrons out of the fuel rods (not exactly but near enough for nontechnical crap yeah..) -- basically, if things go wrong, the coolant being used actually becomes a big ol' control rod when it gets too hot and stops reactions, naturally without any human guidance. Oh, and the coolant system is designed so that during loss of power, the coolant (liquid sodium here) will continue to circulate and cool things down for quite a while (and hopefully long enough to avoid a shutdown, but failing that the coolant will get hot and the core reactions shut down).

      Seriously, we've got 40 years since TMI was built -- we've got this shit figured out. You don't KNOW about it because "the public hates nookyoular!" and politicians shut it down. constantly. clinton killed the IFR, last I heard GE was shopping some drop-in reactors of a more advanced design than we had back in the '90s.. to the Chinese. Basically just a big ol' box that you drop into an existing coal power plant -- remove coal furnace, replace with nuclear furnace, leave existing steam turbines in place

      --
      ... still waiting for this free-as-in-beer free beer I keep hearing about. :|
    6. Re:So uh by Solandri · · Score: 5, Insightful

      Statistically, nuclear is the safest power generation technology Watt-hour for Watt-hour. Hydroelectric power accidents kill about 40x more people, wind power accidents about 4x more people, than nuclear accidents (projected, since most of the deaths from Chernobyl are cancer deaths that haven't happened yet). If you remove Banqiao and Chernobyl from the statistics (both were outdated and dangerous designs), both hydro and wind kill about 100x more than nuclear . Solar is a bit trickier to nail down because most of the deaths associated with it are classified as construction deaths (falling off rooftops), and not attributed to solar directly. But the linked-to site makes a decent attempt and solar comes out worse than wind.

      The statistical comparison to fossil fuels is completely off the scale. Coal plant emissions are estimated to kill 1 million people each year (primarily by inducing lung cancer - basically the same mode of death as the majority of the deaths attributed to Chernobyl). That's like 250 Chernobyls every year. Yet people want to hold off on nuclear plants because "they're too dangerous" when the only viable alternative is more coal plants. It's madness.

      And for the folks who say that average statistics aren't important, you have to look at what the worst-case potential devastation is, the worst power generation accident in history was a hydroelectric dam failure. Chernobyl was pretty much a worst-case nuclear accident (active core completely exposed to the environment accompanied by a fire and a government which disregarded the safety of nearby residents), and Banqiao was much, much worse. So by those folks' reasoning, we should be getting rid of hydro in favor of nuclear.

      Basically people interact with water, hunger, and disease every day, they're not freaked out by the prospect of death by dam failure. Radiation on the other hand is something they don't deal with every day (or at least they don't think they do, as they eat a banana split on their granite counter-top after getting home on a transatlantic flight from Europe). The mere mention of the R-word even with no deaths attached completely freaks them out.

    7. Re:So uh by spinkham · · Score: 4, Interesting

      Coal releases more radiation in an average year then a nuke plant, releases more small particulate matter that causes lung disease, releases CO2 that correlates with global warming, and has killed far more more miners then have ever been killed by all nuclear power incidents combined.

      Here's Seth Godin's simple post of the number of deaths per terrawatt hour of different generating technology:
      http://sethgodin.typepad.com/seths_blog/2011/03/the-triumph-of-coal-marketing.html

      I work in computer security, and do risk assessment for a living, so I recognize the biases on this issue as similar to those in my day job. Coal related deaths are slow and silent(usually, though think of the number of mining related incidents you've heard of in the past year), nuke plant accidents are big, noisy, and unusual. Our biases are to be afraid of big noisy unusual things like nuke plants and terrorists, while ignoring the obvious things that are actually likely to kill us like auto accidents, heart disease, and to a much smaller extent, coal generation.

      I live about 11 miles from a nuke plant, which happens to be the largest spent fuel holding facility in the nation. I bought this house knowing that, and and if there was a coal plant that far away I probably wouldn't have bought this house.

      I'm totally in favor of them building 2 more nuke plants close to me as is planned. I'm also in favor of review of the safety systems of the older plants. Nuclear safety designes have gotten much better than they were in the 80s when construction stopped.

      --
      Blessed are the pessimists, for they have made backups.
    8. Re:So uh by Duradin · · Score: 4, Insightful

      The food issue isn't one of production but of (lack of) governments.

      A lot of those starving people in Africa are living in what used to be THE (not just the, THE) breadbasket of the continent. Why are they starving in what should be the most productive areas of Africa? Because they'll get killed trying to farm the land or they were killed and some group that has no idea how to farm has been given their land.

      Fix the governments and you fix the food problem.

  2. What happened? by SniperJoe · · Score: 5, Interesting

    I am beginning to think that my fellow Americans are afraid of success. We claim we want energy independence, but do very little to achieve it, despite valid and workable options staring us in the face. New reactors are precisely what we need in this situation (with more modern safety features compared to the reactors in Japan as well as decreasing our reliance on foreign energy).

    1. Re:What happened? by EdZ · · Score: 5, Insightful

      All it takes is one accident, and you've got a disaster on your hands.

      Eh? The reactors at the Fukushima no.1 complex were hit by a magnitude 9.0 earthquake, THEN a 12m high tsunami, and THEN several explosions. So far, the only injuries from radiation have been two workers who received surface skin burns to their legs (on the severity of a bad sunburn) because they ignored their dosimeter warning alarm.
      The Fukushima incident has shown that even with multiple massive accidents, even old designs hold up pretty damn well.

    2. Re:What happened? by Anonymous Coward · · Score: 4, Interesting

      Ten thousands (maybe even hundred thousands) of people were evacuated for a long time (will they actually ever be able to get to their homes in their life?). I call this a disaster too.

    3. Re:What happened? by Alioth · · Score: 5, Informative

      No it does not remain dangerous for billions of years. We had a word for things with half lives measured in billions of years: "stable". Something with such a long half-life will have very little radioactivity.

    4. Re:What happened? by HappyHead · · Score: 4, Informative

      I wonder what would happen if such disasters had hit a dam or a thermal gas/coal plant...

      The massive environmental devastation that resulted would once again be hushed up and glossed over by the majority of the media, just like these ones were. Of course, they didn't even have a 9.0 earthquake or a tsunami, just some incompetence, bad safety protocols, and much looser restrictions on how they store and treat their toxic waste products.

    5. Re:What happened? by HappyHead · · Score: 4, Insightful

      As more details emerge, one thing is becoming clear: This accident did not happen as a result of any tsunami. The tsunami merely kicked in the door of a rotten structure which swiftly collapsed. Cost cutting, poor safety, inadequate oversight, etc, etc; These are the real causes of the radiation leaks happening at Fukushima at present.Some very dirty laundry is being aired in very public view.

      Wow, you're just full of crap today, aren't you?

      This accident did happen as a result of a Tsunami. Giant freakin' wave of ocean water shredded the reactor buildings and destroyed the control equipment. Cost cutting, poor safety, inadequate oversight, etc, etc, are not to blame. All of the extra money thrown at the reactors, all of the additional safety features (which were by the way, far from poor), and all of the oversight in the world would not have stopped a nuclear plant that had just been through a NINE POINT FREAKIN' ZERO earthquake, followed by a TWELVE METER WAVE OF SALT-WATER SMASHING THE BUILDINGS from breaking. Seriously! Get a clue. Yes, deregulation for things like public utilities is bad - it never turns out well, but absolving the worst natural disaster in history of any guilt in the devastation it caused? You're delusional.

    6. Re:What happened? by DarkOx · · Score: 4, Insightful

      Tell me, since you don't come out and say it exactly but your post seems to imply that a public entity could run a Nuclear power station more safely. I don't think this is true because they will be subject to the same fiscal pressure a private corporation is.

      Case 1: Chernobyl, was run by a communist government. They cut corners on the desing and materials used to build the plant, and finally on training and staffing to run it. The result was the worst accident in the history of nuclear power generation. Why did they cut corners? Well obviously they wanted to direct those resources elsewhere, it makes not difference whether it was to some officials pocket or to bread for orphans.

      Case 2: New Orleans and Katrina. The Army Core of Engineers had informed the city government that the levies needed to be repaired in places and that they needed to be re-enforced and made higher in general. The local government was aware of this for years prior to the disaster. There was not even a project going to complete the work. Why? Because they were spending the tax revenue elsewhere (largely social programs).

      If you put a public body in charge of plant maintenance they same thing will happen, managers will always place some perceived need of today over mitigation of some risk in the future. There is always going to be pressure to minimize the cost of operating these plants and its always going to push operation below the margin of safety.

      --
      Repeal the 17th Amendment TODAY! Also Please Read http://www.gnu.org/philosophy/right-to-read.html
  3. America's Aging Nuclear Plants by Electricity+Likes+Me · · Score: 5, Insightful

    With something like 20% of the US's electricity presently coming from nuclear power and *all* of those reactors approaching or already past their lifespan, all those Americans need to decide what exactly they want to replace them with.

    1. Re:America's Aging Nuclear Plants by PopeRatzo · · Score: 5, Interesting

      all those Americans need to decide what exactly they want to replace them with.

      Something better?

      You know, maybe the problem isn't that there's something unsafe about nuclear power, but rather there's something unsafe about letting private industry run nuclear power. Now that it's coming out how there were "cost-cutting" measures taken with the cooling systems in Japan which directly led to loss of containment and that safety measures in some cases were completely ignored because "it was too expensive", I think this is a very instructive moment for us.

      Maybe, when it comes to the really big stuff, like nuclear power and maybe the entire energy system of a nation, it's inherently unsafe to put it in the hands of private industry. Health care comes to mind as well. Maybe the best thing we can do is take the profit-motive out of it.

      --
      You are welcome on my lawn.
    2. Re:America's Aging Nuclear Plants by thegarbz · · Score: 4, Informative

      Ahhh so quick to blame the private enterprises. Maybe you don't actually pay attention but the nuclear industry is the most heavily regulated industry in existence. An operator can't fart in the control room without authorisation from the NRC. You know all those expired leases on ancient reactors which are renewed are the result of the NRC extending the licenses, not the evil private enterprise doing their best to milk old equipment. If you want to start replacing the old reactors with something better then maybe you should start pointing the fingers at the government.

      Also if you've ever been exposed to anything to do with engineering, there's always cost cutting. You know the entire incident in Fukushima could have been contained if they built a giant lead dome over the city too right? But that option was knocked down as too cost prohibitive. But on a more serious note there's always an extra redundant system that could have been put in, the design scope could always have included securing against a mag 9 earthquake instead of the magnitude 7.9. There's always room for an extra quadruple redundant cooling system, but in the end cost cutting does feed in the ultimate ability to build a project. If we build anything to withstand everything it is often no longer economical to build it.

    3. Re:America's Aging Nuclear Plants by MachineShedFred · · Score: 5, Interesting

      Replace? That's funny. The operators are going to run these plants until they fall apart, because they *can't* replace them. Then we'll have some real fun.

      Vermont Yankee, which has been the source of detected radioactive tritium leaks, has had it's NRC license extended by another 20 years last week because it provides 35% of the State of Vermont's energy, and amounts to almost 72% of Vermont's power generation.

      It is also a BWR plant like the ones in Fukishimia, built in 1972. It is currently running at 120% of it's original licensed thermal capacity under an NRC-licensed Extended Power Uprate.

      Yeah, we don't need to build new stuff - we'll just wait until the 40-year-old stuff completely falls apart and cannot be repaired.

      --
      Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
  4. Number by xnpu · · Score: 5, Insightful

    While certainly worrisome, please keep in mind:

    * Nobody has actually died from this incident yet. (Versus regular deaths in coal mines, etc.)
    * The incident can be learned from and other reactors can be improved accordingly. (Again versus the situation in many coal mines, etc. which are unlikely to see any further improvement.) In fact, many claim the risks of these particular reactors were known but not acted upon, something which can be handled with stricter rules.

    1. Re:Number by Talderas · · Score: 5, Insightful

      It's the result of a 15 meter tsunami.

      Remember, the plant weathered the quake just fine and its backup systems were running UNTIL the tsunami came along. This is really the bit that makes me facepalm over all the moratoriums on nuclear plants that are going on.

      Yes, Germany, tsunami's are a huge problem for you.

      --
      "Lack of speed can be overcome. In the worst case by patience." --Znork
  5. Or... by Spad · · Score: 5, Insightful

    Poorly informed people, lead by sensationalist news stories, when asked leading questions, will give obvious answers.

  6. Re:Time for a serious effort on renewables by Anonymous Coward · · Score: 5, Insightful

    moratorium, until we have at least a 20% wind power and 10% solar power in the energy mix.

    What? Do you think that a truck rolls up and sets up the ACME Nuclear Power Station and they're rock'in? It takes years for a nuke plant to come on line. In the meantime, the solar and wind and whatever will have to be developed and implemented.

    This just disgusts me. The ignorant public (who can blame them since all their info is from TV and shit websites) will keep nuclear on the sidelines for decades.

  7. The Bad PR is Unfortunate by Xenolith · · Score: 5, Interesting

    We have the technology for much safer and nearly unlimited nuclear power. Only hurdle is how to deploy. What I am talking about is TWR (http://en.wikipedia.org/wiki/Traveling_wave_reactor) and LFTR (http://en.wikipedia.org/wiki/Molten_salt_reactor). They "burn" waste from current reactors, can be shut-of nearly instantly, no water cooling, and a smaller footprint and cost. Now we have to overcome this bad publicity provided by the old technology.

    --

    Journal
  8. How about nuclear tests? by Amiralul · · Score: 4, Insightful

    I find it amusing how US media is worried about Fukushima nuclear contamination of Japan and surrounding arrea, including US territories or... Europe. They seem to forgot hundreds of nuclear tests made by the US both in Pacific and continental US. I wonder which event released more radioactive material in the atmosphere, a few hundreds nuclear test or the damaged reactors from Fukushima? (and I'm not even considering detonations over Hiroshima and Nagasaki).

  9. Thank you sensationalist news! by Chas · · Score: 4, Insightful

    Yup. Due to the news media's disgusting exaggeration of the event, , and the 60+ years of "all radiation = bad = kill you dead", a bunch of people who don't understand a thing about nuclear power generation from the 60's, let alone modern reactor technologies are going to browbeat the power industry into the least effectual, most expensive forms of power generation. And it'll be the power industry's fault when power prices skyrocket. It'll also be the power industry's fault when these sources of power fail at maintaining baseline power levels.

    Way to fucking go. Decision by committee of imbeciles.

    --


    Chas - The one, the only.
    THANK GOD!!!
  10. Re:Good by Chas · · Score: 5, Insightful

    Sorry, but if you think Wind/Solar can be used for baseline power, you're on drugs.

    You have NO idea exactly how huge the battery capacity you're suggesting is. Nor how expensive and high-maintenance such an array is. And if you're adverse to the environmental impact of a few tons of recyclable nuclear waste, how adverse are you to the environmental impact of a few megatons of battery medium?

    Please put some thought into what you're trying to suggest.

    --


    Chas - The one, the only.
    THANK GOD!!!
  11. Postcard from Future by Rollgunner · · Score: 4, Funny

    I just got a postcard from 2211, They said to go with solar when we can... all the wind farms permanently damaged the jetstream and now the equator is 180 farenheit and the poles are -200.

    Until we get the solar thing figured out, they recommend nuclear power; just try not to use 40-year-old reactors that are built on the ocean and within 150 miles of a major faultline.

  12. Re:Time for a serious effort on renewables by Anonymous Coward · · Score: 5, Interesting

    Those would be the Canadian style reactors, which aren't physically capable of melting down. (Well, technically with a lot of outside assistance and deliberate sabotage, you could force one to melt down, but you'd probably die in the process.)

    Unfortunately, our public are just as stupid and uneducated as the American public, and are screaming and pointing at exaggerations of the problems in Japan, and claiming them as proof that all Nuclear everything is bad and going to kill us all, despite any actual facts they might encounter. There are people campaigning to have the Canadian Nuclear plants shut down before "an earthquake causes them to explode just like in Japan", despite:

    1) They're on the freakin' Canadian Shield, the largest, most solid tectonic plate on the planet, and we just don't _GET_ earthquakes here past about a 3.0, and those are not centered here, they're from way the hell off at the edges of the plate, usually causing mudslides in Quebec.
    2) The reactor design is completely different, and, as you mentioned, the control rods are kept in place by the electric power produced - thus, a failure results in immediate safe shutdown.
    3) It wasn't the damn earthquake that broke the reactors. The earthquake didn't damage much at all there, except probably knocking a lot of things off shelves, and giving a few people heart attacks. The damage was when more water than is found in the great lakes got dumped on the reactor buildings and shredded them. Again, our reactors are not anywhere near the ocean, and the great lakes don't have enough water to do that kind of damage, unless you found a way to take the entirety of Lake Erie, and dump it all on the plant at once.

    The worst part? People screaming about how dangerous nuclear reactors are, are actually the reason they're still as dangerous as they are. They lobby politicians to make new laws banning research into improving the reactors, and then we're stuck with 1970s technology producing tonnes of toxic waste, because an "environmentalist" screamed "WON'T SOMEONE PLEASE THINK OF THE CHILDREN!" and got improvements banned/restricted. 'cause nothing says "I'm thinking of the children" quite as well as sticking them with a massive pile of radioactive waste that didn't need to be there, if it hadn't been for some moronic busybody declaring that things were bad.

  13. Re:Time for a serious effort on renewables by SharpFang · · Score: 4, Informative

    Actually, if not a THICK layer of red tape, SSTAR and HPM type reactors could be deployed exactly like that.

    --
    45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2
  14. Government lies make this discussion difficult. by cryfreedomlove · · Score: 5, Insightful

    Any chance safe nuclear power has is set back when governments lie about risks or the extent of any accidents. The USSR government lied about the safety of nuclear plants and then lied to cover up the extent of Chernobyl. Residents of the Ukraine heard about the disaster from the BBC days before their own government. I heard this first hand from friends of mine who lived in Kiev at the time. The government and power company in Japan is lying through omission about the extent of the ongoing danger in Japan. They have only been forthcoming when outed by foreign media.

    I like nuclear power. I think it is safer than belching radioactivity into the air from burning coal. However, nuclear power has a long track record of official deception and lies that will make it harder to have a reasonable discussion about moving ahead with safe and zero carbon nuclear options in the future.

  15. Re:Time for a serious effort on renewables by hairyfeet · · Score: 5, Insightful

    I'd say it is the fault of the nuclear industry for failing to educate the masses that there are choices now besides the big ass clunky reactors like Japan has.

    With the small Thorium reactors you can have a reactor in a shipping crate, just bury it when you are finished with it and which would power a decent medium sized city easily and you can simply add more as needed. With the smaller size comes much less risk and they would be much easier to harden to survive even the kind of unpredictable catastrophes like struck Japan, and they also need to be showing how well our current reactors are doing even though most are 40+ years old.

    So if you want someone to blame blame the nuclear industry, because if they were educating the masses on their options instead of singing "oh poor me" or completely ignoring the public they might have a more favorable outlook.

    Also having a CEO that isn't a greedy pussy and bragged about having his family home in sight of the reactor might do wonders, as it never ceases to amaze me how many CEOs talk about how nice their plants are and then live as far away from them as possible. Putting their asses with their mouths are certainly wouldn't hurt their image none.

    --
    ACs don't waste your time replying, your posts are never seen by me.
  16. which kind of nuclear? by nten · · Score: 4, Insightful

    Fusion is a great long term proposition, even if we never learn how to make a reactor other than the one we are orbiting, but I think we will. The thorium won't run out before we figure out fusion. But right now we need to be worried about if fossil fuels will run out before we get the thorium reactors built, not whether they will be prone to the same incidents seen in 30yr old reactors essentially designed as nuclear weapons refineries.

    --
    refactor the law, its bloated, confusing and unmaintainable.
  17. Thorium, and Breeding. . . by JSBiff · · Score: 4, Insightful

    I decided to try to start learning about nuclear power a little over a year ago, driven mostly by concerns about waste disposal, and safety.

    One of the things I've learned is that current reactor designs only use a tiny, tiny percent of fuel potential of the Uranium - basically, about 1 percent.

    So, one option is that we keep using the current fuel cycle for another 150-200 years, then when Uranium gets scarce, we start using breeder reactors, which 'unlock' the fuel potential of the remaining 99% of the Uranium which remains in our 'spent fuel' and 'depleted uranium' tailings.

    With breeder reactor technology, after extracting 1% of the energy for about 250 years (we've already been using reactors for over 50 years, so the clock has already started), we should be able to get something like 99 * 250 years times more energy (assuming energy consumption levels remain about the same; that's a dubious assumption, but provides at least a good starting point; it also assumes the breeders can consume the full 99% of remaining U-238, which might not, in practice, actually be true - there might be some 'losses' in the process, but we should at least be able to extract a large percentage of what remains).

    So, that might be something like 20,000 more years worth of power from that Uranium.

    Then there's Thorium. Thorium is a metal which is 4 or 5 times more abundant in the earth's crust than Uranium is. Right now, Thorium is a mostly useless 'waste' product from mining operations extracting other rare-earth elements (like Neodymium which is used for very strong permanent magnets in high-tech equipment, including those little earbud speakers for your phone/mp3 player, some designs of electric wind turbines, hard drives [I think], or anything which needs very strong magnets).

    Thorium would most likely be used in a type of reactor called a LFTR (most folks pronounce that as "lifter"), which is the Liquid Fluoride Thorium Reactor. A LFTR very efficiently burns the Thorium, extracting virtually 100% of the available energy, so we should have something on the order of 100,000's of years of energy supply using Thorium.

    In the end though, we'll probably be using fusion power long before those eventualities. It's hard to say for sure, but I would think that at most, we'll only be using fission reactors for another 100-200 years anyhow.

  18. new and safe VS old and dodgy by petes_PoV · · Score: 4, Insightful
    Without new reactors, the old ones will be kept in service for longer. So instead of having new installations - complete with all the design improvements and safety features that have been invented in the past few decades, the old reactors from the 70s and 80s will have to be kept running for longer - well past their original design life.

    The alternative is to switch them off, and go back to using oil and gas from foreign sources and coal fired stations. While people *think* nuclear is unsafe, coal mining is *proven* to be unsafe. Just consider the number of miners killed every year.

    Somehow, public opinion has managed to come up with the worst possible solution, by not thinking through the consequences of the soundbite press and media and knee-jerk decisions it promotes.

    --
    politicians are like babies' nappies: they should both be changed regularly and for the same reasons
  19. Re:Time for a serious effort on renewables by Joce640k · · Score: 4, Insightful

    In the meantime the coal reactors will keep on pumping more radiation into the air than a nuclear station ever would. And mercury, etc.

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  20. The nuclear safety paradox by JSBiff · · Score: 4, Insightful

    I think that opponents of nuclear power create a bit of a paradox by opposing *new* nuclear power plants:

    By opposing the construction of new nuclear power plants, whose designs benefit from decades of experience gained with older designs, knowledge about their failure modes, ways to improve cooling with passive cooling systems, etc, you effectively act to keep older, less safe nuclear power plants in operation longer.

    So, would you rather be living near a newer, safer plant, or an older, slightly less safe (but still, mostly safe - it took a massive earthquake and tsunami to take out those old Mk 1's in Fukushima) plant?

    That said, I certainly think we should (and I'm positive we will) do extensive investigation and analysis of the problems at Fukushima Daiichi, find what lessons can be learned from that, and apply those lessons to both existing, and new reactors.

    But it's worth repeating: opposing new nuclear will likely have the effect of keeping older nuclear online longer than it would if there were new nuclear plants built to replace the old ones.

  21. Re:Time for a serious effort on renewables by Joce640k · · Score: 4, Insightful

    The thing that mostly makes them expensive is the ten years of approval process and the five years of meetings you have to have with the NIMBYs to eventually get to build one.

    The only way to convince investors to sign up for all that crap is to promise them a massive return on their money, ie. the debt repayment ends up costing you an order of magnitude more than the sum of the materials/labor needed to actually build it. See Economics of Nuclear Power Plants

    Still, you could be supplying the entire country with cheap energy for less than the cost of the banking bailout. Imagine what that could do for the economy...(as opposed to giving the bankers a taste for free money which will just make them do it all over again).

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