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First New US Nuclear Reactor In Two Decades Gets Permission To Begin Fueling (ieee.org)

An anonymous reader writes: The Tennessee Valley Authority's Watts Bar nuclear power plant began construction in 1973. The plant's first reactor was completed in 1996, and it began operation. Work on the second reactor paused in 1988, and only resumed in 2007. That reactor is now complete — the first newly-operational Generation II reactor since the 1990s. The new reactor has been granted an operational license, and it will soon begin fueling. While the Gen II reactors aren't unsafe, they're much less safe than the Gen III AP1000s. "Compared to a Westinghouse Gen II PWR, the AP1000 contains 50 percent fewer safety-related valves, 35 percent fewer pumps, 80 percent less safety-related piping, 85 percent less control cabling, and 45 percent less seismic building volume. ... If an accident happens, the AP1000 will shut itself down without needing any human intervention (or even electrical power) within the first 72 hours."

167 comments

  1. Stupid by Nemyst · · Score: 4, Insightful

    This is what the stupid scaremongering of the media, some politicians and many environmentalists ends up causing: instead of building Gen III or even Gen IV plants, we're finishing ancient Gen II plants because that's all that's been approved, decades ago. They are quite literally the cause for nuclear energy's relative safety concerns.

    If the government could make its mind up and stop wasting time, the US could rapidly diminish and even eliminate its reliance on fossil fuels without even having to suffer through energy shortages. Allow breeder reactors on top and you'd also eliminate the whole nuclear waste scare while being that much more efficient and cost-effective.

    1. Re:Stupid by Anonymous Coward · · Score: 0

      Mod Parent UP

    2. Re: Stupid by binarylarry · · Score: 2

      Yeah but won't someone thingof the oil company execs and investors? This nuclear shit is going to fuck them over.

      Those lamborghinis arent going to gold plate themselves, you know? Now think about the poor metalurgists and day laborers whom will be out of work. Oh what's that? You didn't think about them?

      I didn't think so.

      --
      Mod me down, my New Earth Global Warmingist friends!
    3. Re:Stupid by RightwingNutjob · · Score: 5, Interesting

      I am. I have a job as an engineer in the military industrial complex. I've also been told to drop what I'm doing because of $BULLSHIT_ADMINISTRATIVE_REASON only to have to pick it up again a year or more later and waste time getting myself and the right people back on track. I've also seen my colleagues do the same, and I've seen all of get screwed by the fact that after $WAITING_PERIOD, the resources we had marshalled the first time around aren't quite so easy to marshal the second time around, especially when you pull the rug out from under people enough times, they don't want to work for/with you the next time when for real, I swear, we have the funding to finish it, promise. If it's true for the 10M programs I've worked on, it's true times a hundred for a billion-dollar power plant.

    4. Re:Stupid by MrKaos · · Score: 2, Interesting

      [sic]This is what the stupid scaremongering of the media, some politicians and many environmentalists ends up causing: instead of building Gen III or even Gen IV plants, we're finishing ancient Gen II plants because that's all that's been approved, decades ago.

      The 2005 Energy act prevents entities like that and local governments from interfering with the placement and approval of Nuclear facilities, including Reactors. Compliance for building a nuclear reactor was established by the NRC's predecessor, the Atomic Energy Commission so it has very little to do with the groups you mentioned.

      They are quite literally the cause for nuclear energy's relative safety concerns.

      I'd suggest that it is more the operator of the facilities not complying with the manufacturers recommended operating conditions for the reactors. Windscale, TMI, Chernobyl and Fukushima accidents all came about due to problem with the operator's procedures and had very little to do with the groups you mentioned.

      If the government could make its mind up and stop wasting time, the US could rapidly diminish and even eliminate its reliance on fossil fuels without even having to suffer through energy shortages. Allow breeder reactors on top and you'd also eliminate the whole nuclear waste scare while being that much more efficient and cost-effective.

      The Act mentioned above allows budget for those programs. Breeder reactors *create* more plutonium because they transmute the additional two fuel elements placed in them (palladium and lithium IIRC) into plutonium.

      It is not a scare though, it is a valid concern as Fukushima has really shown us that storing the spent fuel at reactor sites is a really bad idea when things go wrong.

      Burner reactors are a much better idea and EBR tested the reactor component of an Integral Fast Reactor facility (known as IFR) that actually *burns* plutonium at around 15-20% of the fuel load (compared to the 0.3% of existing BWR/PWR). Such technology answered pro and anti nuclear concerns by addressing issues of (spent) fuel storage (now fuel for this technology), reprocessing and reactors into a single facility. Additionally the reactor could consume depleted uranium.

      Personally, I think the solution for the Nuclear industry is to start with some sites around the US capable of containing the waste products and design it so that it can also contain reprocessing *AND* reactor facilities in the belly of a granite mountain. That way you save on the energy inputs required to demolish the IFR reactor safely by disposing of it "in-situ". By my calculations such a reactor facility would have a roughly 1.5Tw hour advantage, per reactor, over a Gen III designs, over the lifetime of the reactor.

      Unfortunately Clinton halted development on this revolutionary reactor design and W.Bush funded it's demolition, clearly showing apolitical motivations for preventing anything that could destabilize the oil and coal industries hold on the energy industry. I imagine a technology that answered infrastructure issues by producing electricity (coal) and hydrogen (vehicle fuel) would not be popular with established energy producers.

      My reading of the act suggests that oil and coal companies are using approvals for more modern reactors as a way to access taxpayer funded financial incentives as those companies receive substantial funding from tax payers even if they just propose to build a reactor and then don't do it. It's all contained in that act for anyone to read.

      There is nothing in the act that I could see that would prevent such infrastructure being planned and developed. Funding exists in the act and is available until 2025. The current 4-8 year political structure precludes any such visions manifesting as few politicians have an appetite for things that exceed their term in office coupled with educating the populous about why certain issues have to be solved.

      --
      My ism, it's full of beliefs.
    5. Re:Stupid by Anonymous Coward · · Score: 0

      Well, if Mr.Kaos reads the thousand page regulations that way, I guess it's so. Did you do while on break from WoW?

    6. Re:Stupid by Trepidity · · Score: 1

      If the government could make its mind up and stop wasting time, the US could rapidly diminish and even eliminate its reliance on fossil fuels

      I'm not sure about that, unless by "make its mind up" you mean the government makes a big intervention into the economics, rather than merely streamlining the regulatory process. The crash in natural-gas prices has really killed the fundamental economics of a lot of nuclear plants that were in the works. With the huge up-front capital costs of nuclear plant construction, you can't compete in a market where cheap-to-build natural-gas plants can be fed by gas that's selling wholesale for under $3/MMBtu, barely above the price of coal. I don't see that changing unless either fossil fuels get hit by a significant tax (e.g. a carbon tax), or nuclear gets much larger subsidies than the current ones (which are mostly just loan guarantees and liability limitation).

      Even in politically supportive areas, a bunch of operators who had announced planned new units in the early and mid 2000s (in places like Texas and Florida), announced around 2010-2012 that projects were being put on hold due to the unfavorable market conditions.

    7. Re:Stupid by dbIII · · Score: 1

      Blame the banks for not wanting to risk money on new designs. Everything else is just kicking the cat.

    8. Re:Stupid by dbIII · · Score: 1

      It is not a scare though, it is a valid concern as Fukushima has really shown us that storing the spent fuel at reactor sites is a really bad idea when things go wrong.

      It just confirmed what has been obvious for decades. Part of the long chain of fuckups at Fukushima was having stuff "temporarily" on-site that should have had something better than the ridiculous adhoc storage that was used implemented a couple of decades ago.

      Also reprocessing is a method to avoid a shortage of fuel, it's not a waste management solution - in fact it results in an increase in low level waste. An illustration of that is that France, the only nation to do extensive reprocessing, this month shipped a few tons of radioactive waste to Australia. It is waste that is much easier to deal with and store than spent fuel rods but it still needs attention. Reprocessing is not a case of waving a magic wand and making the waste go away, it has an entirely different purpose which is very useful but not the same thing as waste management.

    9. Re:Stupid by Orgasmatron · · Score: 1

      The capital costs are high because we choose to let them be high. The materials and labor of building a nuclear plant are a small fraction of the cost of building one. Most of the money actually spent is spent on delays. No design changes are allowed, no matter how trivial, without regulatory approval, which takes time. But even that pales in comparison to the legal fights. Every challenge, no matter how frivolous, gets their day in court, usually their year in court, and like whack-a-mole, as soon as one case is won, the next is ready.

      Note that you cite power plants designed in the "early and mid 2000s" being cancelled in 2010-2012. A plant designed in 2005, for example, should have been producing power for a year or so by 2010. It should take 3 years to go from "we need to build another plant" to generating power. Maybe 4.

      This has actually been studied in considerable depth, if you'd care to search for it. The watermelons know that delays kill the economics, and they have scores of friendly judges willing to aid them.

      Congress could bankrupts the solar, wind and natural gas industries in January 2017 if they wanted to, just by barring sympathetic courts from hearing the speedbump cases. (Note that this power is explicitly enumerated in the Constitution, but rarely used.)

      Nuclear reactors are cheap to build, but very expensive to get permission to build.

      --
      See that "Preview" button?
    10. Re:Stupid by MrKaos · · Score: 1

      It just confirmed what has been obvious for decades. Part of the long chain of fuckups at Fukushima was having stuff "temporarily" on-site that should have had something better than the ridiculous adhoc storage that was used implemented a couple of decades ago.

      Precisely. I'm not against the idea of developing nuclear power but any rational person looking at the facts will uncover that it has a lot of problems that need to be fixed. It has the potential to solve problems, if it is done right however all to often we see a fixation on reactor technology instead of looking at the entire industry as a whole and the challenges it poses.

      Geologically sound containment facilities should be one of those 'no-brainer' issues solved decades ago.

      Also reprocessing is a method to avoid a shortage of fuel, it's not a waste management solution - in fact it results in an increase in low level waste. An illustration of that is that France, the only nation to do extensive reprocessing, this month shipped a few tons of radioactive waste to Australia.

      I missed that one, thank you.

      It is waste that is much easier to deal with and store than spent fuel rods but it still needs attention. Reprocessing is not a case of waving a magic wand and making the waste go away, it has an entirely different purpose which is very useful but not the same thing as waste management.

      The Nuclear industry is in a mess and it is in the commercial interests of the oil and coal industry to stifle any evolution of that would allow it to compete in the energy market. I think that they are very happy with the current state of affairs. Storing spent fuel rods in a proper containment facility would mean that the industry would reduce the impact of any potential accidents and create a threat to coal's electricity business.

      --
      My ism, it's full of beliefs.
    11. Re:Stupid by MrKaos · · Score: 1

      Well, if Mr.Kaos reads the thousand page regulations that way, I guess it's so.

      I am a voracious reader, so have a read of the law yourself and share what you find if you disagree. It's not fun and it's only 500 odd pages, which isn't huge, mostly boring with some interesting moments.

      The oil and coal industry lobby politicians to safeguard their interests because business is brutal, you're hopelessly naive if you don't think that the coal industry celebrates a market win over nuclear via a legislative construct. If you are uncomfortable about the legislative hold that the oil and coal industry has over the nuclear industry why don't you do something about it instead of claiming it's all the fault of environmentalists and NIMBYs and me.

      Burying your head in the sand, pointing fingers and yelling 'FUD, FUD' isn't going to solve these problems and criticizing me for sharing information just shows you're not really serious about anything other than creating conflict.

      Did you do while on break from WoW?

      My life is more interesting. When I am not involved in designing something I make a habit of using my time to read proposed or actual laws to defend the democracy and freedom for you to anonymously illustrate the kind of dogmatically skeptical, social proof based attack that I get subjected to when I challenge ignorance with reason and fact.

      You leave very little room to be civil so I am sorry if I have hurt your feelings but I do not suffer fools gladly.

      --
      My ism, it's full of beliefs.
    12. Re:Stupid by AmiMoJo · · Score: 1

      Watts Bar Unit 2 was nearly finished in 1998, but was mothballed because it wouldn't make enough money. That's why the design is so old. It was started in the 1980s, but economics prevented it being finished. They were not about to scrap it and spend even more money just to do safety upgrades to a newer, safer reactor when the old design meets current regulations.

      Nuclear's problems are all about money. Politicians and protesters are not very effective - if they were then we wouldn't have so many coal plants, or wind farms, or much of anything. It's always about the cost and doubts over the potential pay-back.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    13. Re:Stupid by TheRaven64 · · Score: 1

      You could probably streamline the entire process a lot by removing all (except for normal planning approval) of the regulation for building the plant and moving it all into the approval for fuelling the plant. If you need to make changes during the building process, that's fine, you can make any changes you want, as long as you pass the safety audit before trying to turn it on.

      --
      I am TheRaven on Soylent News
    14. Re: Stupid by Anonymous Coward · · Score: 0

      So basically capitalism fucks things like nuclear power up with is emphasis on short term profits over everything else.

      The pro-nuke crowd never gets this. If nuclear power is done right it's fine. On an engineering level they knew this but they constantly rage against 'environmentalists' and 'liberals' who are also quite right in that the people we allow to handle this stuff are not to be trusted.

      Of course, nobody's allowed to notice, let alone mention, that there can be situations where the for profit publicly traded megacorp model could possibly be less than ideal for everything.

    15. Re:Stupid by DarkOx · · Score: 1

      Except nobody would want to do it that way. Its like remodeling a residence ( or building one ) you get inspections as you go. You want the city's you want the assay guy to confirm the foundation you dug isn't to close to the property lines before you pour cement, you want the electrical, and plumbing inspectors to let you know something isn't acceptable before you close up the walls.

      Waiting to the end of the construction process to do safety audits sounds like an expensive mess likely to lead to a lot of poor fixes.

      --
      Repeal the 17th Amendment TODAY! Also Please Read http://www.gnu.org/philosophy/right-to-read.html
    16. Re: Stupid by MrKaos · · Score: 1

      So basically capitalism fucks things like nuclear power up with is emphasis on short term profits over everything else.

      There is a reason it took governments to put us into space. I think that government has a role in innovation doing risky stuff that has to be done right. You wouldn't expect a profit from running a Nuclear submarine because it has a very specific role.

      From what I've learned about Admiral Rickover he was the kind of guy that had little tolerance for stupid people which probably why the naval reactor program hasn't had any accidents.

      There is absolutely no reason why such a culture couldn't exist for nuclear programs, because that is the discipline they require. Nuclear power is a risky business like no other industry, if it wasn't it wouldn't require it's own legislation (the Price Anderson Act) to cover it's liability.

      The pro-nuke crowd never gets this. If nuclear power is done right it's fine. On an engineering level they knew this but they constantly rage against 'environmentalists' and 'liberals' who are also quite right in that the people we allow to handle this stuff are not to be trusted.

      I think they just transpose their idea of an 'ideal nuclear industry' onto reality and that is what they believe the nuclear industry is, which is totally unconnected to reality. Confront that belief system and they believe it even more strongly, classic social proof. Then point at some poor hippy in his combi van as if has some magical powerful influence of the entire nuclear industry. It's just ridiculous to believe they have *any* influence at all. The evidence of which is in the law itself.

      Science tells us there are consequences to our DNA, and reactors are just machine with parameters and limits. It's just finger pointing, not problem solving.

      Of course, nobody's allowed to notice, let alone mention, that there can be situations where the for profit publicly traded megacorp model could possibly be less than ideal for everything.

      There is no reason a publicly owner Nuclear power industry could be created with stewardship of the industry and development of the technology that ran counter to economic cycles. For example, In times of economic hardship a publicly owner power infrastructure could drop the price of bulk electricity purchases as an economic stimulus to industry.

      Unfortunately it looks like we'll be saddled with cheap AP-1000's and a dependence on coal for decades to come with incompetence and greed leading the industry to another accident and that will be the end of it forever along with any hope of building something that works or handling the radio-isotopes left behind.

      --
      My ism, it's full of beliefs.
    17. Re: Stupid by LWATCDR · · Score: 3, Insightful

      "Yeah but won't someone thingof the oil company execs and investors? This nuclear shit is going to fuck them over."
      Funny how such a stupid post get a 3.
      Less than 3% of the electricity in the US comes from oil.
      Coal, and natural gas are the two big fossil fuels used for electrical power in the US. While you do have some cross over between oil and natural gas it is not 100% as far as companies.
      BTW the same thing holds true for anyone that says that solar and wind will help cut the US's dependence on foreign oil.
      They are lying.

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
    18. Re:Stupid by TheRaven64 · · Score: 1

      There's a difference between doing inspections and requiring sign-off. It's perfectly acceptable not to require regulatory sign-off until the end, but still have people confirming along the way that you're meeting the requirements that the person doing the eventual audit will require.

      --
      I am TheRaven on Soylent News
    19. Re:Stupid by Anonymous Coward · · Score: 0

      Breeder reactors *create* more plutonium because they transmute the additional two fuel elements placed in them (palladium and lithium IIRC) into plutonium.

      Source? Pd and Pu are so far apart (Z=46 for the former, Z=94 for the latter) that you'd need a supernova to transmute the one into the other.

    20. Re: Stupid by Anonymous Coward · · Score: 0

      Oil Companies and investors are well diversified. I doubt nuclear energy is much of a threat to them. Realistically, they are probably the ones driving nuclear and alternative sources of energy. It's the wild west of energy and they don't want to miss out on the next big thing.

      Nuclear is not going to 'f@ck" anyone over...

    21. Re:Stupid by Coren22 · · Score: 1

      It is not a scare though, it is a valid concern as Fukushima has really shown us that storing the spent fuel at reactor sites is a really bad idea when things go wrong.

      Was that any bit of the issue in Fukushima? I wasn't aware with the spent pools causing issues, only the failure to pump water into the reactors so that they could cool properly while shutting down, which was mostly caused by the 50hz/60hz issues of Japan's electric grid, with the generators being washed away in the flood (or just damaged), and an absolute destruction of most roads feeding the plant preventing new generators from being brought on site.

      What problems were caused by the spent fuel pools? Those pools are dead easy to maintain, so I really wonder what was done wrong there.

      --
      APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
    22. Re:Stupid by Anonymous Coward · · Score: 0

      Anti-nuke crazies have made the world less safe because of self-fulfilling prophecy.

      https://en.wikipedia.org/wiki/Self-fulfilling_prophecy

    23. Re: Stupid by WindBourne · · Score: 1

      Actually, we need CONgress to quit fucking around and push a bill for Support for gen 4 companies such as trans atomic and flible. Both designs can burn thorium and/or nuke waste. Oddly, O likes nuke power and would support it.

      --
      I prefer the "u" in honour as it seems to be missing these days.
    24. Re: Stupid by WindBourne · · Score: 1

      Where does nat gas come from? Same wells as oil.

      --
      I prefer the "u" in honour as it seems to be missing these days.
    25. Re:Stupid by Anonymous Coward · · Score: 0

      While that's perfectly sensible in theory, in practice I think it will be a tough sell. Before someone commits themselves to a big investment in a years-long project, they want to know that they've already got all their ducks in a row. Try contracting a project without first getting a well defined scope signed-off on, and you'll have some idea why.

    26. Re:Stupid by rickb928 · · Score: 1

      This happens in private industry. Such is not exclusive to the military or government.

      And yes, I've witnessed it, from inside and out. In private industry, government, and military. The NMCI was particularly affected by this.

      --
      deleting the extra space after periods so i can stay relevant, yeah.
    27. Re:Stupid by Nemyst · · Score: 1

      The 2005 Energy act prevents entities like that and local governments from interfering with the placement and approval of Nuclear facilities, including Reactors. Compliance for building a nuclear reactor was established by the NRC's predecessor, the Atomic Energy Commission so it has very little to do with the groups you mentioned.

      The groups I mentioned have an influence well before placement and approval are on the table. They negatively influence the very notion of greenlighting additional nuclear facilities: it's currently less damaging for a politician to let more coal plants get built than to push for nuclear power.

      I'd suggest that it is more the operator of the facilities not complying with the manufacturers recommended operating conditions for the reactors. Windscale, TMI, Chernobyl and Fukushima accidents all came about due to problem with the operator's procedures and had very little to do with the groups you mentioned.

      That's part of it, but since the groups I mentioned prevent the deployment of more modern facilities, especially those which have failsafes that do not require human intervention to work, then they are at least in part responsible for the lack of safety of the currently running nuclear power plants.

      It is not a scare though, it is a valid concern as Fukushima has really shown us that storing the spent fuel at reactor sites is a really bad idea when things go wrong.

      If the spent fuel is bred into usable fuel again, then the net sum is less than what we have now, where we need both usable fuel and spent fuel stored.

      Burner reactors are a much better idea and EBR tested the reactor component of an Integral Fast Reactor facility (known as IFR) that actually *burns* plutonium at around 15-20% of the fuel load (compared to the 0.3% of existing BWR/PWR). Such technology answered pro and anti nuclear concerns by addressing issues of (spent) fuel storage (now fuel for this technology), reprocessing and reactors into a single facility. Additionally the reactor could consume depleted uranium.

      I have no particular preference for breeder reactors, it was just one of many possible solutions. Thorium reactors are another example. The point is just that if you have problems with highly radioactive spent fuel, that's because it's not really waste, it's almost the same as perfectly viable fuel and should be considered as such instead of wasted.

    28. Re:Stupid by MrKaos · · Score: 1

      Breeder reactors *create* more plutonium because they transmute the additional two fuel elements placed in them (palladium and lithium IIRC) into plutonium.

      Source?

      obviously I didn't recall correctly.

      --
      My ism, it's full of beliefs.
    29. Re:Stupid by dbIII · · Score: 1

      I didn't see that article and the one I did see said nothing about it being returned low level waste after processing to remove the high level waste. It's a pity it's vitrified and not synroc. With the latter storage is far simpler and transport is not much of a risk. Vitrified waste will leach out over time (many years) if there is water present while synroc is not soluble over time.

    30. Re: Stupid by LWATCDR · · Score: 1

      Most gas actually comes from gas wells and we do not import natural gas as we have a very large domestic supply. And natural gas is NOT OIL!.

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
  2. ...hours? by pushing-robot · · Score: 1

    If an accident happens, the AP1000 will shut itself down without needing any human intervention (or even electrical power) within the first 72 hours."

    I imagine that means the plant could be completely inactive (decay heat will be down to the point of not requiring active cooling) within three days, but as written it's not reassuring.

    And while "Generation II" sounds good, so were Fukushima and Three Mile Island. We should be building Gen 3-4 by now.

    --
    How can I believe you when you tell me what I don't want to hear?
    1. Re:...hours? by Anonymous Coward · · Score: 0

      Thanks Jane.

    2. Re:...hours? by pushing-robot · · Score: 0

      If an accident happens, the AP1000 will shut itself down without needing any human intervention (or even electrical power) within the first 72 hours. What’s more, only a small amount of water transfer (about ten garden hoses worth) is necessary after that to keep the reactor stable.

      I guess it helps when I RTFA.

      Still, supplying "ten hoses' worth" may not be so easy in the case of a contaminated site and/or natural disaster.

      --
      How can I believe you when you tell me what I don't want to hear?
    3. Re:...hours? by ChumpusRex2003 · · Score: 5, Informative

      The AP1000 has 72 hours of decay heat removal capability in the event of total loss of onsite power. If no action is taken to replenish cooling water, then decay heat would cause overheating and overpressure of the containment building and require venting of the containment building to the atmosphere. Radioactivity release from such venting is likely to be low unless meltdown or fuel damage has already occurred. Due to the large inventory of water within the containment building, decay heat is unlikely to result in meltdown for many days following the exhaustion of the containment cooling water.

      In order to ensure integrity of the containment, additional cold water would need to be pumped into the containment building roof tank within 72 hours. This could be by restoration of the electrical supply, use of diesel powered water pumps held on site, use of portable water pumps held near site, or by use of fire pumps.

      The ESBWR which is the main competitor to the AP1000, meets the Gen3+ requirement of 72 hours of decay heat removal without operator intervention. Like the AP1000, no diesel or grid power is necessary to meet this requirement. Like the AP1000, the ESBWR has 2(N+1) redundant UPS systems with 72 hours of battery autonomy for shutdown control and monitoring equipment. However, the ESBWR has a 7 day reserve of cold water for containment cooling. In the event of operator inaction, the UPS batteries will deplete after approximately 72 hours, but passive containment cooling will continue for up to 7 days before water tanks would need to be replenished.

    4. Re:...hours? by ChumpusRex2003 · · Score: 4, Informative

      The AP1000 has a number of on-site and internal reserve water tanks, holding close to 1 million gallons of demineralized water.

      The plant has several electric pumps capable of transferring water from the bulk tanks to the containment cooling system, which could be connected to portable generators in a serious emergency. The plant also has multiple connection ports for portable pumps allowing water to be transferred into the containment cooling system from the bulk tanks or from fire engines/water tankers.

      As the containment cooling tanks are at atmospheric pressure, only low pressure pumps are required, unlike at Fukushima where emergency response teams were trying to use pumps to inject water into the reactors at dozens of atmospheres of pressure.

    5. Re:...hours? by swb · · Score: 2

      Could they use the heated containment water to drive a Stirling engine which would pump more water?

      I'm not a nuclear scientist (let alone a rocket scientist), but somehow it seems like there's a way to (relatively simply) use the heat from containment cooling to pump water.

      And is there a reason the containment water couldn't be a loop with a cooling stage so it could be self-replenishing? It seems to make more sense if you consider the idea of the containment heat being used to drive pumps which circulated the water.

      I'm sure there are good reasons why this is a Rube Goldberg perpetual motion kind of an idea, but it seems like a way where as long as it generates heat it could pump its own cooling.

    6. Re:...hours? by AHuxley · · Score: 0

      Re "The plant has several electric pumps capable of transferring water from the bulk tanks"
      That worked so well in Japan. New designs should have a full understanding of the location of back up power, the needs of back up power and ability to cool after damage.
      All the best ideas present well for paper regulation. Every part of the complex backup system on a site has to switch over and keep working.
      re "connected to portable generators in a serious emergency"
      Japan had some new thinking on that quick local fix too. If the power need and inter connections dont work anymore due to unexpected or events always considered too expensive to consider or find funds for?
      Re "emergency response teams were trying to use pumps to inject water into the reactors at dozens of atmospheres of pressure."
      One aspect of a long line of emergency sub systems might be presented as been 'more easy in the USA' but every system has to be tested, working, in place and well funded to work for a set time at a moments notice when needed.
      Thats a lot of shareholder profit lost over the yeas to powering up, inspecting and servicing a lot of extra complex equipment.
      How is that long term extra cost reduced? Less gov required complex planning, less full testing less often, less regulation, less gov suggestions of new mandated redundancy.

      --
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    7. Re:...hours? by im_thatoneguy · · Score: 3, Informative

      There is a loop but it's the massive cooling tower. If however though the piping between the containment vessel and the cooling tower is destroyed you want a means of cooling outside of the intended infrastructure.

    8. Re:...hours? by aaarrrgggh · · Score: 4, Informative

      The backup cooling is a gravity fed system, once-through. The goal is simplicity for an emergency operation.

      Anything more complex is really just duplicating the primary cooling system.

    9. Re: ...hours? by Anonymous Coward · · Score: 0

      Shuddup Alan

    10. Re:...hours? by ScentCone · · Score: 1, Interesting

      How is that long term extra cost reduced?

      One way to reduce it is to allow the plant to come online years earlier, like it was supposed to, so that it could have been generating power all this time, covering the costs of building it and maintaining it, while also not burning carbon fuels. But because labotomized lefties WANT it to be expensive in order to try to make it unpopular, and of course the people designing the plant aren't cutting any corners, the only way to inflict harm is to throw up foot-dragging roadblocks to make the process more painful, just to annoy people and slow it down. Thanks, lefties, for being so constructive. Guess what: it's online anyway, and all you did was make the people who will be buying the energy it produces pay more in the long run, for no good reason.

      --
      Don't disappoint your bird dog. Go to the range.
    11. Re:...hours? by Mashiki · · Score: 1

      Fukushima's reactors were a first-gen BWR design(believe it was reactors 1-4), and had been dealt with problems by the environmentalists and all that in terms of upgrading the plants themselves away from that design.

      But CANDU reactors have had that built into them for years now, and are a ACR-1000 design, no power or power failure to either the SDS1 or SDS2 and the reactor automatically shuts down dumping 90% of the heat in under 2 seconds. I live within 60 miles of Bruce Nuclear(2nd largest nuclear plant in the world) and they've upgraded, retrofitted, refurbished those reactors once in my lifetime already, they're working on a staggering of a retrofit of them for the second time to make them safer.

      --
      Om, nomnomnom...
    12. Re:...hours? by Anonymous Coward · · Score: 0

      It's not really lefties, as NIMBYs that are the problem. (Though I'd admit that an environmental objection to nuclear power is pretty much just an extreme case of NIMBYism)

    13. Re:...hours? by AHuxley · · Score: 1

      Re "make the people who will be buying the energy it produces pay more in the long run, for no good reason."
      Thats just the cost of any private sector nuclear power site. The build cost has to factor in all the experts and nuclear only energy sub systems. The ongoing costs of buying bespoke nuclear parts adds to costs. Inspections then find expensive faults and complex parts need to be replaced. Finally the radioactive decommissioning costs have to be fully covered. Then the ongoing cooling ponds or other waste costs can be added in.
      Thats why the "energy it produces pay more" adds up over the years when the real nuclear power costs are listed.

      --
      Domestic spying is now "Benign Information Gathering"
    14. Re:...hours? by dbIII · · Score: 1

      Last I heard the banks were not run by labotomized lefties. I suggest you blame the correct people for the lack of funding halting construction instead of just kicking the cat.

    15. Re:...hours? by ScentCone · · Score: 1

      The lack of funding is because people (like the ones who allow banks to invest their money in projects) don't liberate money for huge projects that are being sandbagged by nuisance lawsuits for decades at a time.

      --
      Don't disappoint your bird dog. Go to the range.
    16. Re:...hours? by N1AK · · Score: 1

      You're missing the point ;) First you decide who you don't like, then you attribute the blame for everything to them. An actual relationship between them and the problem is just a happy coincidence.

    17. Re:...hours? by AmiMoJo · · Score: 1

      The power company says that construction was halted because energy was too cheap and it wouldn't have made enough money. Are you saying that they lied? If so, for what reason? Why would they try to divert blame away from "labotomized lefties"?

      Your conspiracy doesn't make much sense. Take a look at electricity prices in the late 80s, they seem to agree with what the company is claiming.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    18. Re:...hours? by AmiMoJo · · Score: 1

      What happens if the pipework and valves that carry coolant to the reactor become damaged? Say you can't open the value to activate the backup cooling system, for example, or a pipe is broken and 50% of the water leaks out.

      Admittedly earthquakes are less common where this reactor is being built, but earthquakes are not the only cause of that kind of failure.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    19. Re:...hours? by Anonymous Coward · · Score: 0

      It's actually pretty huge. The AP1000 has a passive safety system; in the event of some meltdown,internally stored water is pumped into containment dome. The water drops over the reactor's casing and absorbs heat, turns into steam which rises to the top of the containment dome and transfers the heat outside. As it transfers heat the water cools and drops back down to the reactor. It does all of this passively without the need for pumps or human intervention and can do this for 72 hours, as opposed to Gen I and Gen II reactors which have about 8 hours if the pump fails to get them back on or you have a meltdown. 72 hours gives emergency crews a lot more time to come in and improve the situation and if they only need to get smaller amounts of water to keep it operational then it gives them a lot more options to control the sitution. Fukushima had less than 8 hours before the meltdown occurred due to the pump generators being wiped out in a tsunami that followed the earthquake.

      Of course my technical description is a vast oversimplification, but the bottom line is that the system is designed to stay cool for 72 hours without power to pumps or human intervention, and by Westinghouse's estimates improves the likelihood of containing a catastrophic event by 2 orders of magnitude.

    20. Re:...hours? by Anonymous Coward · · Score: 0

      It is highly unlikely that the designed redundancy is anywhere below 3X overbuilt, considering how many of the high reliability non-nuclear hydraulic systems have that sort of redundancy. To think you'd have anything else than that on a nuclear power plant is silly, because the power industry thinks long term, and has too, especially the nuclear part, because of the plant payoff times. Cost cutting (in the design phase, as we've proven they do it while operating, as those are different departments), simple raising the TCO, because of how much you'll lose on maintenance issues.

    21. Re:...hours? by angel'o'sphere · · Score: 1

      will be down to the point of not requiring active cooling
      Depends what you call active cooling!
      Needing a pump? Or needing 'enough' water?
      You did not read the link you quoted?
      Spend fuel rods, or fuel rods removed for other reasons need water cooling up to 20 years!

      From you link:

      About 1 hour after shutdown, the decay heat will be about 1.5% of the previous core power. After a day, the decay heat falls to 0.4%, and after a week it will be only 0.2%.[1] Because radioisotopes of all half life lengths are present in nuclear waste, enough decay heat continues to be produced in spent fuel rods to require them to spend a minimum of one year, and more typically 10 to 20 years, in a spent fuel pool of water, before being further processed. However, the heat produced during this time is still only a small fraction (less than 10%) of the heat produced in the first week after shutdown.[2]

      If no cooling system is working to remove the decay heat from a crippled and newly shut down reactor, the decay heat may cause the core of the reactor to reach unsafe temperatures within a few hours or days, depending upon the type of core. These extreme temperatures can lead to minor fuel damage (e.g. a few fuel particle failures (0.1 to 0.5%) in a graphite moderated gas-cooled design[3] or even major core structural damage (partial meltdown) in a light water reactor[4][5] or liquid metal fast reactor). Chemical species released from the damaged core material may lead to further explosive reactions (steam or hydrogen) which may further damage the reactor[6]

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    22. Re:...hours? by ChumpusRex2003 · · Score: 2

      Emergency core cooling, formally known as the passive residual heat removal system (PRHR) is provided by a gravity pumped heat exchanger which transmits heat from the reactor coolant into a 1 million litre refuelling water tank in the containment building. To initiate passive cooling, there are 2 parallel valves which hold the circuit closed, each capable of providing 100% of necessary flow. The valves are dual-activated (DC electrical and pneumatic). They fail open under spring tension in the event of failure of the control signal.

      In the event that both PRHR valves fail to open, then the reactor circuit will be vented into the containment building (simulating a pipe break). This will cause the reactor circuit to lose coolant and trigger the emergency cold coolant injection systems. A series of gas-charged hydraulic accumulator tanks discharge in sequence into the reactor to ensure it remains full of water, while steam is allowed to vent through pressure relief valves. Each stage of coolant injection has two fully independent dual redundant trains, with the key valves being dual redundant, dual-activated and fail-open within each train. This culminates with valves connecting the reactor coolant system and the refuelling tank together opening, providing 1 million litres of additional coolant capacity.

      After about 24 hours (or sooner in the event of a large pipe break) coolant injection is complete, the reactor is fully de-pressurised and the circuit is fully open to the containment building. The refuelling tank will have been drained, either through a pipe break (or manually) and the water will completely submerge the reactor and its associated piping. The decay heat from the core can then escape via the reactor vessel walls and pipes into the water flooding the containment.

      The core injection systems are sufficiently powerful that clean rupture of a 25 mm diameter pipe will not result water level dropping below the top of the core at any time. In the event of a large pipe break (e.g. a clean rupture of a 350 mm PRHR pipe), then temporary uncovering of the reactor core is possible, and this may result in overheating and damage to the fuel, however, because of the very high capacity of the coolant pressurizer and coolant injection tanks/accumulators, and temperature rise is brief and below the level at which the fuel rod cladding is expected to fail or produce hydrogen. As is conventional for nuclear pipework, the pipes are built in such a way that they are intended to leak long before rupture, so a clean rupture would be a rare event.

    23. Re:...hours? by dbIII · · Score: 1

      So Reagan, Bush, Baby Bush and Thatcher were labotomized lefties?

  3. Less Valves etc by Anonymous Coward · · Score: 0

    My car has two doors, does that make it less safe then a car with 4 doors?

    Prattling off percentages like that doesn't give any indication of the context behind them. '50% less safety valves' for example. What does this mean? Are the 'less valves' perhaps more robust? Does it mean less work in an emergency to shut everything down?

    This article makes me think of clients that demand a certain number of lines of code.

    1. Re:Less Valves etc by fustakrakich · · Score: 5, Insightful

      My car has two doors, does that make it less safe then a car with 4 doors?

      Well yeah, if you had to go through all of them to get out...

      --
      “He’s not deformed, he’s just drunk!”
    2. Re:Less Valves etc by Anonymous Coward · · Score: 0

      My car has two doors, does that make it less safe then a car with 4 doors?

      Prattling off percentages like that doesn't give any indication of the context behind them. '50% less safety valves' for example. What does this mean? Are the 'less valves' perhaps more robust? Does it mean less work in an emergency to shut everything down?

      This article makes me think of clients that demand a certain number of lines of code.

      If a door getting stuck would mean that your car explodes, yes. It's safer because it has less single points of failure.

    3. Re:Less Valves etc by Anonymous Coward · · Score: 0

      Clearly it means the systems have been designed to be more simple and less complex. This ultimately means fewer points of failure and places for things to go wrong.

      It is assuming however that with fewer points of failure, the total risk of failure has fallen proportionally. It's possible that the risk of failure could be identical, or worse than the old designs.

    4. Re:Less Valves etc by pipingguy · · Score: 1

      I think the codes for nuclear facilities is ASME B31.1.

    5. Re:Less Valves etc by Anonymous Coward · · Score: 0

      ASME III for the important stuff, B31.1 for the less important support systems

    6. Re:Less Valves etc by fustakrakich · · Score: 1

      Whoops! Reverse that...

      --
      “He’s not deformed, he’s just drunk!”
    7. Re:Less Valves etc by thegarbz · · Score: 1

      50% less safety valves' for example. What does this mean?

      The context is known for any kind engineer who's worked in the industry. 50% less safety valves to meet the same safety requirement means that an inherently safer plant design is used and that only half of the layers of protection are required to reduce the process risk to a residual level.

      Providing the residual level of risk is the same for all analysed plants, safety can absolutely be determined by such numbers. Less layers of protection for the same risk means:
      1. Safer underlying process.
      2. Lower liklyhood or severity of a disaster should all layers of protection fail.
      3. Less layers of protection which could potentially fail.

      It may not mean less work (for people) to shut things down, but it means it's either far less likely for something to go wrong, far less serious when it does go wrong, and when something goes wrong far fewer systems need to be relied on to keep the situation safe.

  4. Re:Hooray! by TWX · · Score: 5, Interesting

    Have you ever visited a construction site after construction was stopped for any significant amount of time?

    I've been to a couple of commercial construction sites (ie, mostly steel and concrete, versus wood for residential) where construction had stalled for a couple of years after the property value collapse, and crews were literally having to break-up concrete because unfinished exposed rebar ends had rusted and that rust expanded the rebar down into the concrete, causing cracks to begin in that concrete.

    That was after only a couple of years. Imagine how bad it would get after close to 30 years. Buildings already have enough problems when they're finished if they don't get regular maintenance over the course of decades, but unfinished buildings that are not environmentally sealed will undoubtedly fare far, far worse.

    I know that nuclear reactors are supposed to be structurally overengineered simply due to the nature the forces they contain, but starting out with a handicap due to building structural problems doesn't sound like the greatest plan, and that's before account for all of the other technical changes that have been engineered through the decades. We've already seen problems in younger reactors that were finished approximately on their original timetables, this seems like it's asking for more.

    --
    Do not look into laser with remaining eye.
  5. Message from Greens by pipingguy · · Score: 1

    Run for the hills!

    1. Re:Message from Greens by DeathElk · · Score: 3, Funny

      No, that's a message from Bruce Dickinson.

    2. Re:Message from Greens by rjforster · · Score: 2

      Did you notice it was delivered at twelve minutes to midnight? Ten minutes early.

  6. Re:Hooray! by sjames · · Score: 1

    It was 80% complete when work halted. That likely means the walls were closed up and a roof was on.

  7. Less is more? by Dereck1701 · · Score: 3, Insightful

    The article goes on for quite a bit about how much less "safety related hardware" newer plant designs have but I highly doubt that that says anything about how safe a reactor is or not. What DOES make a difference is fail safes, regular inspections, backups, emergency response plans, all with a design double checked by someone with a high school level of common sense. What has caused most of the major nuclear disasters? Rank stupidity. Fukushima was caused by the idiotic placement of backup generators and associated control hardware, in a basement and the subsequent failure of plant operators to call for necessary resources. Chernobyl was caused by them futzing with the reactor outside of normal operating procedures and then activating an emergency system that was not designed to handle those modifications. Three Mile Island was caused by a lack of appropriate sensors to recognize a lack of coolant in the reactor caused by a faulty relief valve. Knowing the reactor coolant level/pressure/temperature with certainty, having the ability to shutdown the reaction, and the ability to keep the reactor cool are the only things you need to prevent 99% of nuclear disasters. I'm not saying that designing a nuclear plant is easy, but keeping your backup cooling systems above water, not experimenting with a full sized nuclear reactor & knowing if your coolant is pouring out of a relief valve would seem to be no brainers that shouldn't have been missed.

    1. Re:Less is more? by AmiMoJo · · Score: 2

      Fukushima was caused by the idiotic placement of backup generators and associated control hardware

      That certainly exacerbated the problems are Fukushima, but was not the cause.

      The earthquake damaged the plant, including the emergency cooling system and parts of the plant monitoring system. Then the tsunami did further damage and made inspecting critical parts of it impossible. Even after the emergency pumps failed, there was a working backup. They had fire engines on site that were pumping coolant into the reactors, or so they thought.

      What turned an emergency into a disaster was the damage to the emergency cooling system. The operators were unable to monitor what was happening, and so didn't realize that a critical valve was in the wrong position. Most of the water that they pumped in was syphoned off into holding tanks, rather than going to the reactors.

      You must expect everything to break, and have some foolproof backup plan, and then a backup plan for when that doesn't work. The AP1000 design is an improvement, but there are still ways in which it could fail catastrophically. Unlikely ways, but magnitude 9 earthquakes and 15m high tsunamis were considered pretty unlikely too.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    2. Re:Less is more? by thegarbz · · Score: 2

      The article goes on for quite a bit about how much less "safety related hardware" newer plant designs have but I highly doubt that that says anything about how safe a reactor is or not.

      Actually it does. When using the HAZOP / LOPA techniques which have been common in plant design for years you consider every safety related device as a Layer Of Protection. If you're targeting a common residual risk, then having less Layers Of Protection implies the process is either of an inherently safer design (likelihood of risk is reduced) or that the consequence of a major incident is lower. This is fundamental to how safety related devices are assigned; you start with where you are, and where you want to be, and then assign layers of protection to get you there.

      Now instantly someone may point out that if the residual risk is the same then you're not actually safer in the, which is true but this leads me to ....:

      Rank stupidity. Fukushima was caused by the idiotic placement of backup generators and associated control hardware, in a basement and the subsequent failure of plant operators to call for necessary resources. Chernobyl was caused by them futzing with the reactor outside of normal operating procedures and then activating an emergency system that was not designed to handle those modifications. Three Mile Island was caused by a lack of appropriate sensors to recognize a lack of coolant in the reactor caused by a faulty relief valve.

      What you are describing is called systemic faults which are a function of design (as opposed to random failures which are a function of statistics). With less required layers of protection there's less scope to screw them up and less effort required to maintain them in good working order. Preventing the above incidents should have been no brainers but unfortunately the entire process industry (not just nuclear but all process / production plants) learns through incidents. Looking back through the problems these sites experienced they are now the first thing we look at when designing process plants (low flow through a valve and high flow through a valve, are both HAZOP cases that are considered for every line in the process at design stage these days, and designers don't allow operations to override safety systems inherent in the design anymore).

      Never under-estimate the stupidity of people that need to be accounted for during the design process. Just as a personal example at a plant I worked at we found a valve jammed open with a stick, it was left there by a maintenance worker who was doing a maintenance job by a procedure which required him to "bypass" the safety system. The solution was not to punish the worker or fix the procedure but rather provide an approved software based bypass method complete with a standing alarm to operations to track when the bypass is in place so when someone bypasses a safety system (and someone WILL bypass the safety system) it can't be forgotten about.

  8. It has what nuclear plants need by PopeRatzo · · Score: 1

    "Compared to a Westinghouse Gen II PWR, the AP1000 contains 50 percent fewer safety-related valves, 35 percent fewer pumps, 80 percent less safety-related piping, 85 percent less control cabling, and 45 percent less seismic building volume. ... If an accident happens, the AP1000 will shut itself down without needing any human intervention (or even electrical power) within the first 72 hours."

    And now, with electrolytes!

    --
    You are welcome on my lawn.
  9. Re:42 YEARS!?? by PopeRatzo · · Score: 4, Funny

    To be fair, the 42 year delay was so that they could convince the people of Tennessee that electricity wasn't the work of the devil.

    --
    You are welcome on my lawn.
  10. Re:42 YEARS!?? by MobSwatter · · Score: 1

    To be fair, the 42 year delay was so that they could convince the people of Tennessee that electricity wasn't the work of the devil.

    Not the work of the devil, just sold by the devil or rather a superstitious human with multiple personality disorder that likes to blame their conduct on a fictional character in a book. So glad they figured out how to manufacture electrons...

  11. Re:Hooray! by Anonymous Coward · · Score: 0, Troll

    This plant has a very poor safety record.

    Because of a flaw in the original construction, the original reactor has to routinely vent tritium into the atmosphere instead of being diverted to the reclaimer and recycled back into the gas loop (a valve box was placed in a foundation area that was eventually covered with concrete. Both valves became stuck around 2005, with no way to access them. Since 2005, approx. 25,000 cublic liters of tritium are vented into the atmosphere on a bi-weekly basis.

    Two whistle blowers were issued gag orders by the FBI when they threatened to report the tritium venting to their senator after numerous attempts to address these safety issues with plant management, the NRC, and the governor.

  12. You're asking for facts on Slashdot . . . by Anonymous Coward · · Score: 0

    . . . instead of whiny political propaganda?

    Yeah, let's see how far you get with that.

  13. Other way. Less likely to have a door problem. by raymorris · · Score: 1

    The other way around. Simpler is more reliable. Suppose that each year, 1 door of 1,000 fails. Your car has two doors, so the odds you'll have a door failure are 2/1000, or 1/500. My car has four doors, so the odds that one of mine will fail is 4/1,000, or 1/250.

    It may be easier to see with more extreme numbers. Your car engine probably didn't fail this year. Dallas Texas has a couple million car engines. It's virtually certain that some failed.

    More parts means more chances for failure. Perhaps more importantly, it means more connections and interactions between parts. More interactions means more opportunities for things to go wrong. To expand on that a bit more, more complex systems are also more difficult for engineers to fully understand, so not only are there more opportunities for the same types of failures, there's also a much higher likelihood of a potential failure scenario that wasn't predicted.

    All in all, a fork is much more reliable than a computer, because simpler things with fewer parts are more reliable in many ways.

    * Obviously -redundant- parts can make things more reliable, but both designs have redundancy built-in.

    1. Re:Other way. Less likely to have a door problem. by CrimsonAvenger · · Score: 2

      The other way around. Simpler is more reliable. Suppose that each year, 1 door of 1,000 fails. Your car has two doors, so the odds you'll have a door failure are 2/1000, or 1/500. My car has four doors, so the odds that one of mine will fail is 4/1,000, or 1/250.

      Pedant Mode...ON.

      More properly, the failure rate of two doors in your example would be 1 - (999/1000)^2. For four doors, it would be 1 - (999/1000)^4.

      Which gives you numbers pretty close to the 1/500 and 1/250 you mentioned. The divergence increases as the number of doors increases....

      --

      "I do not agree with what you say, but I will defend to the death your right to say it"
    2. Re:Other way. Less likely to have a door problem. by N1AK · · Score: 1

      The other way around. Simpler is more reliable.

      That's a large, and usually false, assumption. A plane with 2 engines, capable of flying on 1, may well have a higher chance of an engine failure but it is no less reliable as a plane (each engine is equally reliable, and the plane is more reliable). It is also considerably safer as the risk of mechanical failure leading to a crash are massively lower.

      Decent reactor design will, one assumes, mean that they add additional valves etc because they lower the risk of catastrophic failure even if that means there is a higher chance of component failures that don't stop safe operation.

  14. Here are details regarding the need by raymorris · · Score: 5, Informative

    Here are full details, with appropriate references, about the idea ending the reliance on fossil fuels in the US requires nuclear to be a significant part of the energy mix:
    https://docs.google.com/docume...

    The summary is that solar, wind, hydro, and geothermal can make an important contribution, providing a significant portion of our energy needs. A very significant portion cannot be solved by those four choices - for reliable, steady power in huge amounts the choices are fossil fuels or nuclear.

    1. Re:Here are details regarding the need by tunkamerica · · Score: 1

      I wrote many papers when I was in school, all longer than this I'd wager. I'd never use them as a reference in an argument.

    2. Re:Here are details regarding the need by Anonymous Coward · · Score: 0

      Well this plan from the Rocky Mountain Institute doesn't agree:

      In 2010, the United States (excluding non-combustion uses as raw materials) used 93 quadrillion BTU of primary energy, four-fifths of it fossil fuels. Official projections show this growing to 117 quads in 2050. But delivering those same services with less energy, more productively used, could shrink 2050 usage to 71 quads, eliminate the need for oil, coal, nuclear energy, and one-third of the natural gas, and save $5 trillion in net-present-valued cost. As a better-than-free byproduct of efficient use and a continued shift to renewable supplies, fossil carbon emissions would also shrink by 82–86% below their 2000 levels despite the assumed 2.58-fold bigger economy than in 2010.

      Natural gas saved through more-efficient buildings and factories could be reallocated to cleaner, cheaper, and more efficient combined-heat-and-power in industry (though we conservatively assume none in buildings), to displacing oil and coal in buildings and factories, and optionally to fueling trucks. America’s energy supply in 2050 would end up roughly three-fourths renewable and one-fourth natural gas (the same fraction as in 2010, but of a smaller total—one-fourth less primary energy and one-third less delivered energy). The remaining gas use, which is probably conservatively high, could phase out over a few decades after 2050. Meanwhile, the United States could take advantage of new shale-gas resources if their many uncertainties turned out well, but not be caught short if they didn’t. Biomass would supply about six times more energy in 2050 than in 2010—two-thirds from waste streams (chiefly in industry) and one-third from cellulosic and algal feedstocks whose production wouldn’t interfere with food production nor harm soil or climate. Liquid biofuels needed for transportation would be equivalent to less than one-sixth today’s total U.S. oil consumption.

  15. Re:Hooray! by haruchai · · Score: 1

    It took them 8 years to get the final 20% done?
    They should have just started over with a Gen 3 reactor.

    --
    Pain is merely failure leaving the body
  16. All for upgrades! by Anonymous Coward · · Score: 0

    I see no reason not to replace older model plants with modern reactors.
    I currently live in the respiratory evacuation zone of a nuclear power plant that is literally 1 month younger than I am.
    It's been refurbished with parts from 3 mile island.

    Officially, they are planning on building 2 more reactors at the site both AP1000.
    However, the approval process was halted in 2013.

    If I'm going to live near a nuclear power plant, please build a modern reactor so, one day you can retire the original reactor instead of trying to extend it's operational lifespan beyond it's designed life span.

  17. Forward Unto Dawn by Anonymous Coward · · Score: 0

    Forward unto dawn!

    Hip Hip Hooray!

  18. Lots of power by tomhath · · Score: 5, Informative

    As I understand it the US has about 18GW of solar PV installed capacity with about a 28% capacity factor - so roughly 5 GW of actual power generation.

    These two reactors together will generate about 2.2GW with a 90% factor, or around 2 GW.

    One power plant, 40% of the capacity of all PV in the country.

    1. Re:Lots of power by ScentCone · · Score: 4, Funny

      One power plant, 40% of the capacity of all PV in the country.

      Well sure, but what happens when the sun goes down, causing that nuclear plant to stop generating power until the next morning, huh? How about THAT Mr. Smartypants?

      --
      Don't disappoint your bird dog. Go to the range.
    2. Re:Lots of power by Solandri · · Score: 4, Informative

      As I understand it the US has about 18GW of solar PV installed capacity with about a 28% capacity factor - so roughly 5 GW of actual power generation.

      PV solar capacity factor for the U.S. is about 14.5%, about 18.5% for the desert southwest for fixed-mount panels. This is a physical limitation imposed by geometry, the movement of the sun, and typical weather conditions.

      The 28% capacity factor the EIA gives for PV solar is for utility-scale PV solar installations. These generally track the sun and/or use concentrators (for some odd reason, capacity factor for PV with concentrators is calculated based on the panel's max generation without a concentrator - i.e. they can theoretically exceed 100% capacity factor).

      Power generation for PV solar in the U.S. for 2015 (Jan-Jul) has been 13,841 GWh. Divide that by the 5113.5 hours in 7 months and you get 2.7 GW average production. That's missing the fall and winter months for the latter half of the year so the average generation by December will be slightly lower than that. Doubling the Jan-Jun production yields an annual average of 2.6 GW. If you divide 2.6 GW by the 18 GW of installed capacity, you get a 14.4% capacity factor as expected.

      These two new reactors will generate 77% as much power as all of the country's installed PV solar.

    3. Re:Lots of power by tomhath · · Score: 1

      Good catch. That really underscores the difference between installed capacity and actual capacity.

    4. Re:Lots of power by angel'o'sphere · · Score: 1

      WTF, what the funk.
      Why is obviously everyone who uses the dreaded term 'capacity factor' such an idiot?

      As I understand it the US has about 18GW of solar PV installed capacity with about a 28% capacity factor - so roughly 5 GW of actual power generation.
      Politely speaking: you understand it wrong.

      First of all you are mixing up GW with GWh ... very important, as the CF describes the relation between max ENERGY dvided by actual ENERGY produced by a plant.

      Rest assured a 1GW solar PV plant will produce 1GW when the sun is perpendicular over its panels.

      So, lets assume all your plants are facing south (which would be stupid but if they are privately owned it is often the case) they will produce 18GW POWER at local noon.

      Your two puny nuclear plants only 2.2GW.

      So: perhaps you realize slowly why I rant about every post that uses a 'capacity factor' in its argumentation.

      So, if you want to look at the ENERGY produced over the year and the money made: then you are half correct if you replace the GW with GWh and multiply your numbers by the hours of a year (8640h) then you have 43,000GWh for the solar plant(s) and 17,000GWh for your two nuclear plants.

      No idea why you picked two plants with 1,1GW each ...

      Now, calculating the costs to build such plants from scratch with todays money and technology, and calculating the time till money is pouring in: is left as an exercise to the reader ;)

      By the way, the CF of a nuclear plant is perhaps 90% on wikipedia. In reality it depends on the plant ;) It should be a no brainer to grasp that a country like France has to have 1/3rd or more of its plants load following, no? So how can they have a CF above roughly 45%???

      Now we come to down time .... ah well I skip that.

      Suppose I was a multi billionaire and had the option to invest 1billion into a nuclear plant that starts making money in 10 years versus the option to invest into several solar PV plants, where 50MW gets finished and connected every few months. Guess what I will do ... but that is just me.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  19. Re:42 YEARS!?? by JasonGoatcher · · Score: 0

    To be fair, the 42 year delay was so that they could convince the people of Tennessee that electricity wasn't the work of the devil.

    Are Tennessee people welcome on your lawn, even though you obviously believe they're idiots?

  20. No one wants a beta reactor by Anonymous Coward · · Score: 3, Interesting

    I think that no new nuclear reactors have been built in the United States, because no one wants a beta gen III+ nuclear reactor. In the West, there were 3 different nuclear reactors, Areva's EPR reactor, Westinghouse's AP1000 reactor, and GE's ESBWR reactor. GE decided to exit the nuclear reactor business. Several AP1000s, and EPRs have been under construction in Europe and China since the late 2000s. The EPR reactor in Finland is considered a screw up, and is getting major design changes. China hasn't been reporting many problems. Maybe China is better at building stuff, they haven't found the problems, or the problems have been kept secret. The UK thinks China is better at building stuff. None of the EPR, or AP1000 reactors has started commercial electricity generation, so the waiting game is a smart one for now.

    1. Re:No one wants a beta reactor by nojayuk · · Score: 2

      No-one wants a beta reactor, they want something that will predictably generate electricity at a reasonable cost. That's why virtually every reactor being built today, including the four new-build AP-1000s at Vogtle and Summer as well as the dozens of reactors under construction in China and elsewhere are an evolutionary development of the PWR/BWR concept. The design effort has been concentrated in ever greater cost efficiencies and safety enhancements in larger and more efficient designs generating more electricity per reactor unit.

      There are a couple of new power reactor designs not based on the well-tested PWR/BWR concept but even they are evolutionary; the new Russian BN-800 fast reactor which started up last year is an offshoot of the BN-350 and BN-600 reactors built in the 1970s and the Chinese modular pebble-bed HTR-PM now being built is using technology licenced from the Germans who had the ill-fated AVR and HTHR-300 pebble-bed reactors operating in the 1980s.

    2. Re:No one wants a beta reactor by Brother+Witch · · Score: 1

      Speaking of new reactor technology, China is putting a whole crap ton of resources to researching the LFTR Thorium reactor, based on the proof of concept reactor which Oak Ridge ran back in the late 60's. This is a whole new paradigm and will change the game when it goes operational, though there is a whole lot of research to be done on it yet.

      --
      Knowledge is Power The Power to Heal The Power to Harm The Burden of Choice
  21. Re:42 YEARS!?? by PopeRatzo · · Score: 1

    Are Tennessee people welcome on your lawn, even though you obviously believe they're idiots?

    The people of Memphis and Nashville are welcome. All others pay cash.

    --
    You are welcome on my lawn.
  22. Re:42 YEARS!?? by Anonymous Coward · · Score: 0

    If they're so stupid, how'd they figure out the way to get it done before you, again?

    Oh, wait, you're an idiot. Nevermind.

  23. Re:42 YEARS!?? by Applehu+Akbar · · Score: 2, Insightful

    "To be fair, the 42 year delay was so that they could convince the people of Tennessee that electricity wasn't the work of the devil."

    No, the time was spent vainly trying to convince liberals of that fact.

  24. Boo by Anonymous Coward · · Score: 0

    Hiss...

  25. Re:Hooray! by AK+Marc · · Score: 1

    Near me there was a mansion-like house, left non-weathertight for over a year during building. When I last looked, before it was sealed up, everything was damaged and warped. I have no idea how well it looked done, but I can't believe they got it level enough for someone to buy it. Puddles of water on the unprotected plywood floors, wet framing, no building wrap on. The roof was on, but nothing else to make it weather tight.

  26. Re:Hooray! by sjames · · Score: 1

    I imagine a decent chunk of that time was spent on inspection and repairs.

  27. Re:Hooray! by Anonymous Coward · · Score: 1

    The plant security personnel have been under scrutiny in the local paper because several dogs were found shot dead on the perimeter road leading from I-43 to the plant. All the dogs were shot with the same caliber round, .41SW, which is an unusual caliber, but standardized throughout the plant security force. The round is unusual enough that it's not something that's routinely stocked by local gun stores, but was found in the bodies of the many animals littering the route from I-43 to the plant.

       

  28. double pedanticly, my numbers are right by raymorris · · Score: 1

    I had said "the odds you'll have a door fail". You gave the odds that you'll either have A door fail, or have TWO doors fail. :)

    That's actually my favorite question in probability:
    You enter two contests. You have a 1/10 chanfe of winning each contest. What is your overall chance of winning?

    It sounds so simple, yet it's devilishly difficult to figure out if you don't already know the trick, that you have to instead figure out the overall odds of LOSING both.

  29. Re:Hooray! by dbIII · · Score: 3, Informative

    Considering how long it takes to get turbine rotors for coal fired units of a smaller size (~ 5 years) a lot of it was probably waiting for parts. There's a bit of a queue for rarely produced items.

  30. This sounds really bad by Krishnoid · · Score: 1

    "Compared to a Westinghouse Gen II PWR, the AP1000 contains 50 percent fewer safety-related blah, 35 percent fewer blah, 80 percent less safety-related blah, 85 percent less control blah, and 45 percent less seismic blah.

    So if I get the math right, it sounds like it's 45% less earthquake resistant, 85% less under control, and ... carry the 1, 130-165% less safe all around. This makes me kind of nervous. But we got the facts -- at least that they're not spinning it to try to make the situation sound better than it is.

    1. Re:This sounds really bad by serviscope_minor · · Score: 1

      So if I get the math right

      You don't because having more stuff doesn't make a plant safer. A larger, more elaborate safety system is less robust than a smaller, simpler one. Less to go wrong means it's safer. A pump replaced with passie piping shapes is safer because there's one less pump to need emergency power and to break.

      --
      SJW n. One who posts facts.
  31. Re: Hooray! by djdarko · · Score: 1, Insightful

    That is the dumbest comment that I've seen on Slashdot in a long time. I am at a loss for words. You should be proud of yourself.

  32. Re:Hooray! by Anonymous Coward · · Score: 0

    I'll bet Czar Bomba had more than 9lbs of fuel (I can't prove it, but the numbers just don't work for me...), but it obviously had nothing near 150 tons of plutonium (and it probably used U238, anyhow -- the plane could have never taken off), which should be enough to demonstrate to thinking, rational people why a nuclear power plant isn't a nuclear "bomb". There are safety issues with bombs and power plants, but they are both vastly different. The bombs are actually safer.

    All these posts are completely retarded.

  33. Re:Hooray! by beltsbear · · Score: 1

    We had one near us too. They tore it down after sitting two years.

  34. Re:42 YEARS!?? by DeathElk · · Score: 2

    What about folks from Bucksnort? Or folks from Lynchburg bearing delicious gifts?

  35. Re:Hooray! by Anonymous Coward · · Score: 1

    Good thing you thought of this. I'm sure no one involved in building a nuclear power plant has any clue what they are doing.

  36. Re:Hooray! by thinkwaitfast · · Score: 1

    Wow. Can't tell if serious or joking.

  37. Re:Hooray! by Anonymous Coward · · Score: 1

    And getting over the emotional and political hurdles of nuclear power of the last couple decades.

  38. Re:Hooray! by Anonymous Coward · · Score: 0

    Have you ever visited a construction site after construction was stopped for any significant amount of time?

    I've been to a couple of commercial construction sites (ie, mostly steel and concrete, versus wood for residential) where construction had stalled for a couple of years after the property value collapse, and crews were literally having to break-up concrete because unfinished exposed rebar ends had rusted and that rust expanded the rebar down into the concrete, causing cracks to begin in that concrete.

     

    So you are just a novice, yet somehow feel compelled to talk like an expert?

    That was after only a couple of years. Imagine how bad it would get after close to 30 years. Buildings already have enough problems when they're finished if they don't get regular maintenance over the course of decades, but unfinished buildings that are not environmentally sealed will undoubtedly fare far, far worse.

    "Imagine"... yeah, if only there were people who actually knew what they were talking about, instead of your bullshit.

    I know that

    Let me stop you right there. You clearly know nothing.

  39. Re:Hooray! by Anonymous Coward · · Score: 0

    Yeah, but it's Tennessee so it won't be any big loss.

  40. Re:Hooray! by Anonymous Coward · · Score: 0

    Crumbling concrete, vegetation encroachment, animals nesting, water incursion, and it goes on and on. Two windows were vandalized by bullet holes and someone painted a swastika on a rolling door.

    OK, you need to stop when you have made your point.

    The first sentence was great. Even if not vegetation encroachment and animals nesting might be a big problem once cleaned out.
    Broken windows is a bit of a non-issue, easy to spot, easy to fix.
    What you really should have skipped is the comment about the swastika. It doesn't impact the power plants function or safety one bit and can safely be left there the entire lifespan of the plant.
    It makes your list into a variant of the "Hitler killed six million Jews and one clown" joke. It is completely irrelevant to the point but there will always be people (like me) that gets stuck on it.

  41. Re:42 YEARS!?? by fahrbot-bot · · Score: 1

    To be fair, the 42 year delay was so that they could convince the people of Tennessee that electricity wasn't the work of the devil.

    "I've never seen electricity, so I don't pay for it. I write right on the bill, 'I'm sorry, I haven't seen it all month.'" - Steven Wright.

    --
    It must have been something you assimilated. . . .
  42. Re:42 YEARS!?? by AmiMoJo · · Score: 1

    Liberals love electricity, because it is so much cleaner than burning fossil fuels for transportation. I don't know if I'm the kind of person you are referring to, but I'm often accused of being a foaming at the mouth raving environmentalist so I'll guess that maybe I am, and I drive an electric car. I love electricity.

    --
    const int one = 65536; (Silvermoon, Texture.cs)
    SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
  43. Expensive but worth it in the long run by nojayuk · · Score: 1

    The capital costs of a reactor build are high because it's an expensive piece of construction, not simply because of delays etc. Every other large project including coal-fired and natural-gas generating plants also have to spend money up front preparing plans, covering the likely environmental impacts and dealing with protests.

    Nearly all modern-build Gen-IIa and Gen-III reactors like the AP-1400, the EPR, ESBWR etc. are significantly larger than the original Gen-1 and Gen-II designs, each generating well over 1GW of electricity (the EPRs when they are complete will produce 1.6GW). That takes a lot of concrete and steel for containment, bigger turbine-generator sets, a larger reactor vessel etc. Putting that all together takes longer to complete even if everything goes right first time -- the Chinese are turning out their enhanced Gen-II APR-1000s in about 6 years from breaking ground to first grid connection but they've got a tested production line in place for groundworks, components and construction.

    The good long-term news is that new-build Gen-IIIs will operate for more than 60 years; the Russians just produced a reactor vessel that they claim will last in service for a century and more. This improves the financial viability of a reactor project even though they cost a chunk of money up front.

  44. It was that way by dfenstrate · · Score: 3, Informative

    That was the regulatory regime beforehand, and it resulted in the most colossal waste of money ever: Shoreham

    The combined (construction & operating) license regulatory regime is intended specifically to prevent such wasteful endevours, The design, construction, and operation of the facility is approved largely upfront to ensure the plant can actually be operated when it's built.

    --
    Alcohol, Tobacco and Firearms should be the name of a store, not a government agency.
    1. Re:It was that way by Orgasmatron · · Score: 2

      COSTS OF NUCLEAR POWER PLANTS - WHAT WENT WRONG?

      A major source of cost escalation in some plants was delays caused by opposition from well-organized "intervenor" groups that took advantage of hearings and legal strategies to delay construction. The Shoreham plant on Long Island was delayed for 3 years by intervenors who turned the hearings for a construction permit into a circus. The intervenors included a total imposter claiming to be an expert with a Ph.D. and an M.D. There were endless days of reading aloud from newspaper and magazine articles, interminable "cross examination" with no relevance to the issuance of a construction permit, and an imaginative variety of other devices to delay the proceedings and attract media attention.

      But the worst delay came after the Shoreham plant was completed. The NRC requires emergency planning exercises for evacuation of the nearby population in the event of certain types of accidents. The utility provides a system of warning horns and generally plans the logistics, but it is necessary to obtain cooperation from the local police and other civil authorities. Officials in Suffolk County, where Shoreham is located, refused to cooperate in these exercises, making it impossible to fulfill the NRC requirement. After years of delay, the NRC changed its position and ruled that in the event of an actual accident, the police and civil authorities would surely cooperate. It therefore finally issued an operating license. By this time the situation had become a political football, with the governor of New York deeply involved. He apparently decided that it was politically expedient to give in to the opponents of the plant. The state of New York therefore offered to "buy" the plant from the utility for $1 and dismantle it, with the utility receiving enough money from various tax savings to compensate for its construction expenditures. This means that the bill would effectively be footed by U.S. taxpayers. As of this writing, there are moves in Congress to prevent this. The ironic part of the story is that Long Island very badly needs the electricity the Shoreham plant can produce.

      --
      See that "Preview" button?
  45. Why wait 72 hours to shut down? by Anonymous Coward · · Score: 0

    When the shit hits the fan, I want a nuclear reactor to shut down RIGHT NOW, not at a lazy pace of "within 72 hours."

    That seems ridiculously unsafe to me. Earthquakes don't take 72 hours to do damage. They take seconds. I don't see why a safety system should wait up to 72 hours to shut down what amounts to a controlled nuclear bomb.

    1. Re:Why wait 72 hours to shut down? by Blaskowicz · · Score: 1

      You can't shutdown the spent fuel (waste) radioactive decay

  46. Re:Hooray! by MaestroRC · · Score: 5, Informative

    A couple of comments. I worked at Watts Bar for 6 years - from just before they restarted construction until 2013. I now work out at one of the new reactors under construction at VC Summer.

    First off, WBN2 and WBN1 share structures. Actually, all the structures except for the reactor building itself is shared. The units are what is considered an "opposite hand" configuration, which means that essentially a piece of equipment, piping, or valve on the far west side of the plant for U1 would be on the far east side, at the same northing, for U2 with everything matching up in the middle. The units also share many systems, and in order for them to start up U1, they had to have those systems (and many of the U2 pumps, valves and other support equipment) in service. The units also share a control room, spent fuel pool, diesel generators, and more. The only completely independent structure is the reactor building, which was structurally complete when they halted construction. Most everything inside was complete (major equipment set, piped in, etc). Most of what was lacking were control systems, instrumentation, and some valves. Also, all of this equipment was under temperature and humidity controls during the layup period.

    One other thing - all of these structures are reinforced concrete. The unique thing about concrete is they get stronger with age unless you have something like saltwater causing problems. They're also *very thick* and *heavily reinforced* concrete - as in, the age isn't a handicap at all.

    --
    I hate sigs...
  47. Re: Hooray! by Ginger+Unicorn · · Score: 1

    Poe's Law and all, but my gut tells me it was a joke.

    --
    (1.21 gigawatts) / (88 miles per hour) = 30 757 874 newtons
  48. Re:Hooray! by AchilleTalon · · Score: 1

    The construction paused in 1988 and resumed in 2007, where did you get the 30 years from? It's 19 years. Also, comparison with houses construction sites may not hold water, standards are pretty different and materials too.

    --
    Achille Talon
    Hop!
  49. Re:Hooray! by Anonymous Coward · · Score: 1

    I'm a nuclear engineer that has worked with nuclear utilities for over 30 years. Watts Bar Unit 2 is colocated with Unit 1, which has been operating since 1980. Many of the systems are shared and, of course, those systems have been operated and maintained. TVA always intended to operate Unit 2 when electricity demand increased and spent a great deal of time and money maintaining the non-shared systems. Much of the work performed on Unit 2 since they restarted construction was bringing Unit 2 up to current standards (improving fire protection, Fukushima response, etc.) and inspections.

    Regarding Gen II versus Gen III or IV plants, there are 100 operating Gen II nuclear power plants in the US with an average capacity factor (amount time operating versus shutdown) of over 90%. They have 40+ years of experience and provide about 27% of the electricity in this country. The Gen III AP1000 looks good on paper, but we don't yet know how well they work in practice, as none are in operation.

  50. Re:42 YEARS!?? by Applehu+Akbar · · Score: 1

    So why don't you people let us generate more of it? And let us build the electric alternative infrastructure, like the high-speed rail being described here, that would cut down on our use of petroleum.

  51. Re:42 YEARS!?? by AmiMoJo · · Score: 1

    I'm a massive proponent of high speed electric rail. I think it's great, and want more of it built. High speed rail is very environmentally friendly, as it replaces cars and airplanes for many long journeys.

    I think you are confusing environmentalists with NIMBYs.

    As for generating more energy, it's generally cheaper to save energy, and at the moment the goal should be to replace what we have with cleaner stuff. We don't really need more - in western Europe and parts of the far East demand is falling because everything is getting more efficient. Even with EVs, when you subtract the electricity used to refine and transport liquid fuel and consider that much EV charging will be at off-peak times, demand isn't likely to rise much here. It's the developing world and the US where demand is increasing, and while I want them to have more electricity I think it is in their own interests not to make the same mistakes we did with pollution.

    --
    const int one = 65536; (Silvermoon, Texture.cs)
    SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
  52. almost done yet, so we can get off coal? by raymorris · · Score: 1

    Argument? Still? Are you almost done arguing yet? Coal produces far more radiation than nuclear and far more CO2 than anything. Everybody pretty much agrees coal is the worst choice. So long as we continue arguing about how to stop using coal, we're largely stuck with coal until we decide. We've known this for a few decades, so I'd say it's about time we stop arguing and start doing the things we all know are better. Let me know when you're done with your mental masturbation and ready to get busy.

    1. Re:almost done yet, so we can get off coal? by Coren22 · · Score: 1

      we're largely stuck with coal until we decide.

      As well as natural gas (methane)?

      --
      APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
    2. Re:almost done yet, so we can get off coal? by angel'o'sphere · · Score: 1

      Coal produces far more radiation than nuclear [...]
      This myth got debunked on /. already a 1000 times.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    3. Re:almost done yet, so we can get off coal? by MrKaos · · Score: 1

      Coal produces far more radiation than nuclear [...] This myth got debunked on /. already a 1000 times.

      They just keep going on with it though. What comes out of coal is a natural element, hasn't been enriched and is no where near as dangerous as what comes out of a reactor.

      Here is the finger pointing I see:

      blame coal, blame the greenies, blame the environmentalists, it's all the NIMBYs fault, it's my fault, it's your fault - just hopeless finger pointing because they never point at the nuclear industry and say, yeah - it's those motherfuckers fault. The nuclear industries way of dealing with problems is to either say 'it's not a problem' or 'it's not *my* problem' and they never take responsibility for what they do.

      As if that hippy in the combi van demanded safety procedures be wound back a fukushima so tepco could make an extra $100M, it's so ridiculous.

      --
      My ism, it's full of beliefs.
  53. Re:Hooray! by khallow · · Score: 1
    The cannibalistic urchin gangs and the monitor lizards in the cooling pond did it for me. This site has a lot of potential!

    Crumbling concrete, vegetation encroachment, animals nesting, water incursion, and it goes on and on. Two windows were vandalized by bullet holes and someone painted a swastika on a rolling door.

    If only there were a way to fix stuff.

  54. dumb question by Anonymous Coward · · Score: 0

    What would it take to used Cesium 137 (my understanding is that it is a byproduct of uranium fission) as fuel in a reactor given it's toxicity?

  55. Re:Hooray! by khallow · · Score: 2

    So what? A coal plant burns *3000 tons* of fuel every day. THAT'S LIKE A MILLION TASR BOMBAS!

    Please think of the stray dogs.

  56. note the asterisk. Then compare Subaru on aircraft by raymorris · · Score: 1

    Perhaps you didn't note the asterisk in my post. Yes, redundant identical parts often increase overall system reliability (though they create new modes of failure - ie load balancers can have problems).

    As I said the reactor designs BOTH incorporate redundancy, so that doesn't account for the difference in parts count. The newer design is truly _simpler_ with fewer interactions that can go wrong.

  57. Makes you wonder by RogueWarrior65 · · Score: 1

    So why does it take so effing long to approve this? What if the delays are engineered, no pun intended, to make the reactor obsolete before it ever gets brought online?

  58. Re:42 YEARS!?? by Crashmarik · · Score: 1

    You realize most of the electricity used for transportation comes from burning fossil fuels ?

  59. Re:42 YEARS!?? by AmiMoJo · · Score: 1

    Sadly, that's true at the moment. Even so, it's still better than burning fossil fuels in the vehicles themselves.

    --
    const int one = 65536; (Silvermoon, Texture.cs)
    SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
  60. Re:42 YEARS!?? by Crashmarik · · Score: 1

    http://www.gizmag.com/audi-cre...

    So how do you feel about burning carbon made from electricity and CO2 ?

  61. Re: Hooray! by Anonymous Coward · · Score: 0

    You say the structure is unsafe, I say you are not qualified to make that assessment based upon a visual "inspection."
    My qualifications: forensic structural engineer with thirty plus years of experience.

  62. Re: Hooray! by Anonymous Coward · · Score: 0

    I would imagine that the homes were primarily constructed of wood. Wood structures that are unprotected are much less durable than concrete structures that are unprotected. There is a huge difference in the life expectancy of different materials.

  63. Re:42 YEARS!?? by Grishnakh · · Score: 2

    As the other guy said, you're confusing environmentalists with NIMBYs, but also, you're confusing two groups of environmentalists. The smart environmentalists are pro-nuclear, or at least, anti-coal and anti-fossil-fuel and in favor of nuclear as an alternative to those for the time being until better sources can be made more economical.

    Yeah, unfortunately there's a bunch of dumb anti-nuclear people out there who don't want any nuclear power, but don't have any suggestions at all about what to do to make the electricity needed, and strangely seem to have little to say about fossil fuel (esp. coal) power, which has horrible environmental effects. Not all environmentalists are like this.

    IMO, we as a nation should be moving to eliminate most if not all fossil fuel electricity generation, and only use nuclear and renewables (solar, wind, etc.). Solar power is getting cheaper all the time, and is highly versatile: you can put panels over parking lots, on commercial rooftops, etc., which is also very close to the point-of-use which greatly reduces transmission losses (unlike nuclear where the plant is generally far from where the power is consumed). However, solar of course doesn't work too well at night so it requires a storage method, such as hydroelectric (pump water uphill during the daytime when you have surplus capacity, run it downhill through the dam at night to generate power). But realistically, we probably can't generate all we need with renewables just yet, so nuclear is a good solution for generating large baseline loads. This will be even more important as we move towards more EVs on the road, which will mostly be recharging at night.

  64. Re: Hooray! by Anonymous Coward · · Score: 0

    Well given that the plotonium was just a blasting cap for the fusion reaction that provided the majority of its yield, it might be plausible, but completely irrelevant. Tsar bomba was the cleanest bomb ever set off in terms of the percentage of the yield provided by fission.

  65. The LFTR Fairy by nojayuk · · Score: 1

    Actually, no China isn't putting a crapton of resources into LFTR. It's actually putting about a hundred billion bucks into building a lot of PWRs with more to come in the next ten years or so if they continue the way they're going. Chinese researchers are looking at molten-salt reactor technologies but no significant money has been spent, same with fast-spectrum reactors like the Russian BN-series designs which at least exist in the real world. They're not building any molten-salt reactors, they have no plans to build such a reactor, there are no components for such a reactor being ordered or manufactured. There is some theoretical research and computer modelling being carried out, that's all. The only experimental reactor they're actually spending money on building is a pebble-bed design, the HTR-PM.

    The Oak Ridge molten-salt reactor never used thorium, ever. It ran with U-233 and later with U-235 but never thorium. I blame the Powerpoint Rangers for conflating the purely theoretical LFTR with the Oak Ridge reactor (which was only one of many possible reactor concepts being tried out back in the 1960s).

  66. Re:Hooray! by krakelohm · · Score: 1

    I more so took it as security has been obviously lax if someone is able to get in and vandalize. What was screwed with that we cannot see right off the bat?

    --
    You are all a bunch of idots.
  67. so even the unicorn plan has 15% fossil or nuclear by raymorris · · Score: 1

    > fossil carbon emissions would also shrink by 82-86% below their 2000 levels despite the assumed 2.58-fold bigger economy than in 2010.

    So even if we assume EVERYTHING can be three times more efficient (good luck) AND we ignore the costs of trying to a accomplish that, STILL 15% of total energy can't come from renewables. And this is assuming renewable technology that doesn't actually exist, so it's really not an option right now, is it? Maybe it'll be available in 2050, but if we don't do anything until 2050 we'll be fucked by then. We need to act now. For that 15% (actually 85%) do you want fossil fuels or clean nuclear? Because those are the two choices. Maybe in 40 years we'll have other choices too.

  68. Re:42 YEARS!?? by Applehu+Akbar · · Score: 1

    All of the small renewable energy sources are location-dependent. Some places are sunny, others are windy, and occasionally you will find an old volcanic stump with residual geothermal heat. These sources will certainly help, especially in applications that can tolerate fluctuating power, such as charging EV batteries. But now what if your "smart environmentalists" are right about climate? If we really have to eliminate fossil sources in one generation, only nuclear will make up for the massive baseload we now have in coal and gas. The other sort of environmentalist answers, "All we have to do is get rid of energy-intensive industries and switch our economy over to software consultants and artisanal brewing?"

    But the rest of us, and our creditors, would prefer to keep our day jobs.

  69. Re:Hooray! by rickb928 · · Score: 1

    Try reading slower. If you have to move your lips, that's ok.

    Alternatively, graduate 9th grade. Even by today's standards, that should be enough.

    --
    deleting the extra space after periods so i can stay relevant, yeah.
  70. Re:Hooray! by rickb928 · · Score: 1

    And certainly the plywood is ruined.

    --
    deleting the extra space after periods so i can stay relevant, yeah.
  71. Re:42 YEARS!?? by rickb928 · · Score: 1

    Yeah, the TVA sure didn't convince them.

    Nor did the streetlights, or the Grand Ol Opry, or WSM. Admittedly, they may have been using battery radios in the hills.

    --
    deleting the extra space after periods so i can stay relevant, yeah.
  72. Re:42 YEARS!?? by Grishnakh · · Score: 1

    If we really have to eliminate fossil sources in one generation, only nuclear will make up for the massive baseload we now have in coal and gas.

    Yes, exactly. I think I said this in my post above basically: that renewables + nuclear is a practical and relatively environmentally-friendly way to meet our electricity needs now and into the near future. Over time, we should be able to come up with more efficient and cheaper solar cells so that that can be used more and more, and older nuclear plants can be decommissioned, and maybe they'll finally figure out how to get fusion working.

    The other sort of environmentalist answers, "All we have to do is get rid of energy-intensive industries and switch our economy over to software consultants and artisanal brewing?"

    These fools can be ignored. They're not a significant part of the electorate. It's the same thing with conflating everyone who's left-of-center in this country with the far-left wackos who yammer about "social justice" constantly and tell people to "check your privilege". Don't confuse a vocal minority with an entire group.

    Some places are sunny, others are windy, and occasionally you will find an old volcanic stump with residual geothermal heat.

    It's true that windmills are not going to be cost-effective in many places because there's just not enough wind, and obviously geothermal only works in certain spots, but solar actually is useful in more places than people realize. Germany is generating a huge portion of its power solely from solar, and Germany is *not* known for being a warm, sunny place. Look at a map: it's actually quite far north; southern Germany is at the same latitude as North Dakota. If we deployed solar power in the southern US states (from California to Florida) to the extent Germany has, we probably wouldn't need any fossil fuel plants any more except for the pesky nighttime issue.

  73. Re:42 YEARS!?? by Applehu+Akbar · · Score: 1

    Interesting that you should mention Germany. I have spent a lot of time there visiting in-laws. Unfortunately the yammerhead form of environmentalists is dominant in German politics over any organism with brain cells, so the country is actually moving its power baseload from nuclear to coal - lignite, the one in-ground resource it has left, with the energy content and carbon profile of damp firewood. This requires digging the world's largest strip mine (Tagebau Garzweiler, soon to be succeeded by an even larger strip mine that will eventually top out at eighty-five square kilometers.

    Meanwhile, massive feed-in tariffs (subsidies) have pushed German wind and solar to unprecedented build-out. Transporting power from the windy northern flats of Friesland to southerly markets requires a new transmission line called the Stromautobahn ("Power freeway"), which is being held up by the same Greens who promoted all that wind in the first place. No problem, though; just raise taxes a little more and surreptitiously buy more power from France.

  74. Re: Hooray! by Anonymous Coward · · Score: 0

    Fuck you.

  75. Re: Hooray! by MaestroRC · · Score: 1

    I-43? Wtf have you been smoking? This is about Watts Bar - a plant in Tennessee, not Wisconsin. The only plant I know of up that way is Point Beach.

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    I hate sigs...
  76. Re:Hooray! by tehcyder · · Score: 1

    Lighten up, he was just adding some colour to his description, vandalism implies that there is no one guarding the site, it wouldn't have been as dramatic as saying he saw a "JimBob hearts SueEllen" piece of graffitti.

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    To have a right to do a thing is not at all the same as to be right in doing it
  77. Re: Hooray! by tehcyder · · Score: 1

    You say the structure is unsafe, I say you are not qualified to make that assessment based upon a visual "inspection." My qualifications: forensic structural engineer with thirty plus years of experience.

    Your qualifications: someone posting anonymously on the internet.

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    To have a right to do a thing is not at all the same as to be right in doing it
  78. Re:Hooray! by tehcyder · · Score: 1

    I suppose it's just barely posible that they don't build nuclear power stations out of wood, but I'd want to see proof.

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    To have a right to do a thing is not at all the same as to be right in doing it
  79. Meanwhile in Iran... by TheDarkener · · Score: 1

    Funny how double standards are sort of the staple of the U.S. lately.

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    It is pitch black. You are likely to be eaten by a grue.
  80. Gen 25 Hopeium Reactor by lazy+genes · · Score: 0

    Will we need to do the same for the storage sites.