Expansion of Comanche Peak Nuclear Power Plant Suspended 114
mdsolar writes in with news that plans to build two new reactors at the Comanche Peak nuclear power plant have been put on hold. "On Friday, Luminant, a subsidiary of Dallas-based Energy Future Holdings, suspended its application to the U.S. Nuclear Regulatory Commission to build two new reactors at the plant. Its partner on the project, Mitsubishi Heavy Industries, said it was focusing on getting its nuclear reactors in Japan back in operation. The majority of Japan's reactors were shut down because of safety concerns following a 2011 tsunami that caused a radiation leak at the Fukushima Daiichi nuclear complex 150 miles north of Tokyo. Mitsubishi 'has informed us that they will materially slow the development of their design control document for their new reactor design by several years. In addition, both [Mitsubishi] and Luminant understand the current economic reality of low Texas power prices driven in large part by the boom in natural gas,' read a statement from Luminant."
Delays not surprising (Score:4, Informative)
Side note: The reactors at Fukushima are GE design, not Mitsubishi Heavy Industries, as some readers might conclude from the author's attempt to tie the two together.
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That should be "we have an EARLY 20th-century energy grid".
Re:Delays not surprising -- please stand by (Score:3)
That should be "we have an EARLY 20th-century energy grid".
It was friggin' amazing when it was built, a time when few could even envision multi-gigawatt cities such as Las Vegas.
It all began with the dramatic and brutal the battle of the currents [youtube.com]. Tesla/Westinghouse AC was the right choice for small scale and the subscriber level, enabling the use of transformers to step voltage. The self-synchronizing 60 cycle grid grew, and in the age of miracles (practically) no one objected to corridors of uninsulated cable suspended between power plants, which grew to become t
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Thanks - I know the history of the grid, the war of currents, etc.
No matter how amazing it was then, it's badly outdated now.
Nothing like "Edison's DC" (Score:2)
The long HVDC connections are only possible with technology using not even thought of in Edison's day. I suggest you look at wikipedia for a far better description than the "flying cars of tommorrow!!!" thing from a guy dreaming of something that's already in use, but he just doesn't know it yet.
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I agree with you at some level. But what I think we need is a DC standard for SOME things and an AC standard for others. For example, everywhere an AC/DC power supply is used (and that's almost everywhere) DC should be available in the home. Lighting is an obvious exception to that unless you recognize that all LED bulbs must convert AC to DC to make use of it and that much efficiency is lost due to conversion.
Some devices are better off remaining as AC and for the transmission of power, AC is just bette
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but it is not capable of handling input from multiple (tens of thousands) of power generators
Any evidence to back that up? Having lots of smaller inputs into a system makes it 'less' vulnerable, as major spikes can be smoothed out.
We live in the age of the transistor! (Score:1)
It would have been extremely difficult to do without semiconductors but now it is done wherever people have their solar panels hooked into the grid - there's your tens on thousands of power generators in each of quite a few cities around the world.
So there you go, counter evidence to the AC's rubbish that sounds like it came from someone ignorant in the 1980s is probably in your own street.
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Germany also isn't crippled by a gov't that is split down the middle, where one side adamantly opposes anything interfering with the 'free market'.
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No one in government believes in the free market. And none of the businesses that benefit from corporate welfare believes in the free market. Let's just skip beyond that argument because it is demonstrably false.
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The assumptions here are wrong. France depends a lot on its nuclear reactors, Germany doesn't anymore. France has the dropouts in its electrical grid in winter time, not Germany. In fact, Germany is a net exporter of electrical energy and France regulary depends on it, not the other way around.
Stories about the unreliability of the German electrical grid due to the high percentage of regenerative energy are highly exaggerated by the usual suspects, the big four energy companies which neglected to invest
Re: Delays not surprising (Score:3, Informative)
The numbers are disappointing. Fyi.
http://www.ise.fraunhofer.de/en/downloads-englisch/pdf-files-englisch/news/electricity-production-from-solar-and-wind-in-germany-in-2013.pdf
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Those numbers look quite encouraging. Note for example how Germany has become a huge net exporter of energy, and how wind and solar complement each other.
What you have to remember is that Germany is in a transition period at the moment. We won't know the real outcome until the mid 2020s when nuclear shutdown is complete and renewables have hit their targets. In the mean time though the predicted vast increase in coal use has not happened and instead renewables are taking up the slack, and have really pushed
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And to combat this, they're building 25 new coal-burning power plants. Some of them just came online: http://wattsupwiththat.com/2013/04/23/germany-to-open-six-more-coal-pow [wattsupwiththat.com]
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German physicist here. A few "small" corrections: While renewables are more demanding to the grid, this is a well recognized problem which is being dealt with. Speaking of "dangerous amount grid instability" in Germany is ridicilous. And while Germany still uses nuclear power, 8 of 17 have been shut down after Fukushima. The missing power has been replaced by renewables and somewhat less exports (yes Germany still has net exports in electricity). And no, we don't built new coal power plants to combat thi
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Also Germany building coal plants as replacment is mostly a myth:
http://www.renewablesinternational.net/power-plant-projects-on-hold-in-germany/150/537/61889/ [renewables...tional.net]
Not the best source (I have better ones in German), but well you did not provide any source.
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* It is not the N+2 rule is is the N-2 rule
* It is more of a guideline
* The guideline applies to grid systems. The German grid is not a system. It is just a part of the European system
* Heck of a job at Chernobyl
* Everyone in the old power industry SAYS renewable is bullshit. Everyone in the old power industry rambles on about baseload. Why? Because everyone in the old power industry is worried about their job.
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As for Chernobyl, I worked on decommissioning the other nuclear reactors there.
A
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8 of 17 nuclear plants have been shut down after Fukushima.
The rest will be untl 2020. Numbers can be found here (sorry in German): http://ag-energiebilanzen.de/ [ag-energiebilanzen.de]
Energy production:
nuclear 140.6 (2010) -> 99.5 (2012) (in billion kWh)
renewables 104.8 (2010) -> 142.4 (2012)
Renewables almost completely replaced the missing nuclear power. Yes coal increased too, but only one kind and the usage
of natural gas decreased by about the same amount:
145.9 -> 161.1 (lignite)
117.0 -> 116.1 (black coal)
89.3
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Anyway, why isn't Germany replacing all those old coal powerplants with oh-so-good renewables? WHY?
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Gas is quicker responding and more short-term. Nuclear is a long-haul technology. You don't just decide one day "hey, let's make a nuclear reactor" and then have it start up the following year. The time for planning and building reactors is NOW because of the amount of time and planning required to make it happen when you need it in the future.
As for shale gas, it's a matter of time before increased demand makes the price too high. Additionally, it's still burning stuff which puts more crap in the air.
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Or, more solar and wind plugged into decentralised local grids. See: Germany and Denmark who are doing just that without the benefit of Texas Sun.
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Lets check on Germany and run the numbers.
Germany peaked at 23.9 GW [cleantechnica.com]. At the peak, it was providing for 40% of Germany's electrical usage. Impressive.
But that's the peak. How about overall?
Wolfram Alpha gives 549.1 billion kwh/year for German's total electricity consumption. It also gives 19.1 billion kwh a year from solar, tide or waves [wolframalpha.com] and 46 billion [wolframalpha.com]
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Year......Capacity......Yield
2002......296......162
2003......435......313
2004......1,105......556
2005......2,056......1,282
2006......2,899......2,220
2007......4,170......3,075
2008......6,120......4,420
2009......10,565......6,583
2010......17,554......11,729
2011......25,039......19,340
2012......32,643......28,000
So, conservatively, it's doubling every 2 years or so. It is presently at about 5% of total electrical production.
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Your numbers are way off. Wolfram Alpha doesn't give me any sources, but Wikipedia [wikipedia.org] states that renewables were at 23% back in 2012. As you can see here [wikipedia.org] renewables overtook nuclear a few years ago, and are well on target for the goal of 35% by 2020.
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Side note: The reactors at Fukushima are GE design, not Mitsubishi Heavy Industries, as some readers might conclude from the author's attempt to tie the two together.
Not only that but the Fuku reactors are an early BWR design that is no way like the current designs from GE, Westinghouse, CE et. al.
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What is really depressing is that even South Africa has reactor technology that far exceeds all of the above. The US nuclear lobby is a dinosaur on welfare that ate it's own children (eg. lobbying against the thorium projects) and Japanese development was cut for economic reasons. Comparing one thing from the 1970s to another from the early 198
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Energy 'storage' is currently not capable of handling the variability of renewable sources at grid scale. But putting up solar panels/windmills such that during the day (or windy) time we only use as much energy as the night time is still the best and most economical answer to energy and environmental requirements.
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The irony of an AC asking for 'citations' is noteworthy at least.
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Side note: The reactors at Fukushima are GE design, not Mitsubishi Heavy Industries, as some readers might conclude from the author's attempt to tie the two together.
Mitsubishi's reactor design probably originates from GE or Westinghouse. In the 1970's, the cool thing to do was for an American company to liscense their design to a Japanese company. Many foreign markets tough to break into, so foreign companies would make technology deals and get royalties. GE licensed their steam turbines to Toshiba, Hitachi, and later Doosan (Korea) and Ansaldo (Italy). Westinghouse licensed their steam turbines to Mitsubishi, and Westinghouse steam turbines have strong design tie
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That's a choice you need to make nearly twenty years before it is going to start delivering. If governments don't see a good reason for it then nobody else is going to bother since they don't want to see their money tied up without a return for so long.
It's a bit of a stretch to call business as usual in China and India as a "worldwide expansion". Why are you doing this? What exactly is your motivation to mislead the readers here?
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That plus a bit more is how long it takes before construction starts. However something that large requires a certain amount of planning which does not happen instantly, as should be obvious, so why are you pretending it is not obvious to you?
It takes many years to plan and then build a major coal fired power station so why do you think something that has a large number of challenges to overcome, since there are so few or none exactly like it, is goi
Typo (Score:2)
As an example consider the AP1000 which is close to completion and consider the date when China was considering what to get and where to site it. Most recent reactors have taken far longer still than that.
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How dare you paint me as that strawman you disgusting weasel - I have never submitted an article on energy issue to this site let alone anti-nuclear or pro-solar.
FWIW, I was not referring to you. I don't think you have an agenda or motivation. The point was, don't assign an agenda or motivation to me when you have no evidence and while you seem to accept it from others when its blatantly obvious......
Asking is not assigning (Score:2)
Well Mr Lying weasel backing away from your strawman attack, here is what I actually wrote - which renders your "assign" bit yet another lie:
In other words a needlessly polite way of asking "why are you lying" instead of stating "Mr D is lying due to his motivation of ..."
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If you want to inquire about motivation, how about questioning the motivation of a member who submits anti-nuclear articles, pro-solar articles on almost a daily basis.
If you read it as it is worded, it simply suggests that you might be calling out what you perceive as shills only where you do not agree, and gladly accept what is clearly the behavior of a different member with a clear agenda.
But you seem to have too much anger and emotion to see things as they really are, so I guess you'll just ignore the fact that I clearly did not call you a shill, just so you can play the victim card. Pathetic.
As for 1970s technology, well I coul
Since I'm replying to obvious fanboy lies (Score:2)
You also don't seem to know enough about nuclear to understand what I was getting at about the 1970s tech, yet you call me pathetic? Learn about your topic before wasting space here screaming about mythical solar shills.
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I have clearly stated, in my first post on Slashdot, who I am and where I work. I know nuclear and the power industry quite well, thank you. I actually believe solar ma
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So let's take a look at some of your earlier posts:
Funny name for reactors. What do you REALLY do for a living? It's certainly nothing to do with power generation with that tripe about nuclear being the most reliable form of electricity generation. It was far too log and depressing a slog to get to that first po
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you are of mixed racial ancestry, you're too late
if you don't believe me, tell my what regions each of your grandparent are from, and I will tell you of the racial mixing proven by genetic analysis
Need Thorium (Score:2)
Wind power may be to blame (Score:3)
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Wind power in Texas does generate quite a bit of electricity - 12,212 MW to be exact.
http://en.wikipedia.org/wiki/Wind_power_in_Texas [wikipedia.org]
It looks like the Roscoe Wind Farm is the largest generating 781MW over 100,000 acres of land, several times the size of Manhatten
http://en.wikipedia.org/wiki/Roscoe_Wind_Farm [wikipedia.org]
Likewise, Comanche Peak generates around 2,100 MW of electricity between its current two reactors.
http://en.wikipedia.org/wiki/Comanche_Peak_Nuclear_Power_Plant [wikipedia.org]
The question comes to how much land you want
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The problem with Solar is that you really cannot do anything else with the land, and if you place them on top of buildings, you are lucky if you can generate enough power for the building underneath it. Solar pannels need to be much more effective before its a viable source of energy to replace something like nuclear. The largest array in the world covers 2400 acres and will generate only 397 MW of power. This may sound like its more efficiant than the wind farms I listed, but as wind turbines sit a conside
OT: Watch Pandora's Promise (Score:5, Interesting)
CNN has started doing these long-form documentaries and the 2 I've seen have been mind altering. I went from being a total nuclear power skeptic to being 99% in favor. The documentary is done from the perspective of environmentalists who did their own research into nuclear power and were really surprised by their findings. The clincher for me was the milliSievert readings from all over the world; including Fukushima and Chernobyl.
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That is an opinion piece, if I read the URL correctly. I saw one citation in the article, debunking a claim that a cell phone uses as much energy as a refrigerator. I agree that claim is dubious. This however does nothing to change the facts. If you can do arithmetic, and also agree that burning things to produce electricity is not healthy and/or sustainable, you start running out of options rather quickly.
Solar PV, wind, tidal, etc., are all too variable/intermittent to form the bulk of supply, unless mass
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Here is a link [scientificamerican.com] that confirms my reply.
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Now there's a pressing need to not have the downsides of uranium based reactors, and thorium may fit that bill if the engineering challenges can be worked out.
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the known Uranium supplies are plentiful
What? Although Uranium is fairly plentiful, the vast majority is U238, which is not fissile. The only Uranium we can reliably "burn" is U235, which is about as plentiful as Gold or Platinum. (That's why we "enrich" the stuff, to increase the portion of U235 over U238.) If we keep going at status quo, the current fleet of reactors will burn out the "usable" Uranium supply in a few decades.
The big "revolution" in the next few years will be the transition from solid-fuel to liquid-fuel reactors. Liquid fuels c
Re:renewability of nuclear power (Score:4, Insightful)
Obviously nuclear power is technically non-renewable, so how long would it be expected to last, assuming no refinements to extraction or fission methods?
One answer is here: http://www.scientificamerican.com/article.cfm?id=how-long-will-global-uranium-deposits-last [scientificamerican.com]. The short version is that with current techniques, and usage levels, the available uranium will last a couple hundred years. However, there are methods that we expect would increase that by multiple orders of magnitude.
Just 10% of current production though (Score:3)
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Not if you use breeder reactors. Besides there are plenty more exploitable reserves of uranium than those mined traditionally. It is present in seawater and granite for example.
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Breeders use the neutrons in the fission reaction to generate Plutonium from U-238. They are called breeders because they generate more Plutonium than they consume while also generating heat and power in the process. Examples of such reactors include the US Integral Fast Reactor or the French Superphénix.
Breeder research basically stopped in the West after the end of the Cold War. With the decommissioning of nuclear warheads nuclear fuel was so cheap most mines became uneconomic and had to close down.
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s/ALVIS/AVLIS/
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Examples of such reactors include the US Integral Fast Reactor or the French Superphénix.
An IFR is a different reactor from a breeder reactor, it is a burner reactor and has a different fuel cycle from a breeder. They are both fast neutron reactors however they have different design goals. Also IFR includes a reprocessing facility as part of the design and a breeder does not.
A burner reactor (such as IFR) has a burn-up rate of fuel (usually pu-239) approaching 20% whereas a breeder *creates* plutonium from the other elements that are combined and transmuted in the core.
There is currently 70,
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Folks have mostly stopped exploring for large uranium ore bodies in part because current reserves are being exploited so efficiently the actual value of uranium is very low -- the current price for yellowcake (refined U3O8) is $35 per pound at the minehead. There are big known reserves (probably counted in the overall availability estimates) in placves like northern Canada which can't be exploited commercially as yet since the geographical limitations would put the price up above the market rates.
If the pri
European Commission (Score:2)
It is worth noting that the uranium from seawater idea is flawed by the huge amount of ocean current you'd need to get at the uranium. It becomes a project with climate implication owing to disturbed currents.
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If we switch to molten salt based thorium we'll have thousands of years of fuel.
The 1960s question (Score:2)
Coming from the other direction newer Uranium reactors (late 1960s) were running on fuel that didn't need as much enrichment so less Uranium would be needed to be mined to run them. So now we are in the si
It would have made more sense... (Score:2, Offtopic)
It would have better if you'd posted this in the topic about RUSSIANS in SPAAACE!!!!!!