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US To Build Nuclear Power Plants
An anonymous reader writes "President Barack Obama has announced more than $8bn in federal loan guarantees to begin building the first US nuclear power stations in 30 years. Two new plants are to be constructed in the state of Georgia by US electricity firm Southern Company."
Cause that's how long it will take them to get through all the red tape.
If by facts you mean falsehoods.
The facts:
1. If you only look at the construction of the plant. It makes perfect economic sense if you look out over 50 years, and can even be cheaper than coal.
2. Most of the waste we have could be used as fuel, but we're refusing to do so, partially because of the ban on new plants, partially because several of the methods create a lot of weapons-grade Plutonium. But we are making far more nuclear waste than necessary.
3. Repeal it. Anyway, coal plants have caused more health damage than nuclear, at least in the US.
4. That's not a fact. That's not even an opinion. You just said "fuel dependency."
What a great thing -- lots of reliably generated power that is greener than burning fossil fuels. The only bad thing about this is that it has taken 30 years for more people to realize that safe nuclear power generation is possible.
This is one step closer towards reducing the amount of our dollars that go to the middle east while also stimulating the US economy. This also moves us closer to our goal of having electric vehicles that really are green. Wind/solar are not as reliable as nuclear because you only have wind when the wind blows, and solar when the sun is shining.
As opposed to dumping waste in the atmosphere, like fossil fuel plants do, yes, it *is* "green". Or as opposed to flooding huge areas of land, like hydroelectric power plants do. Or as opposed to covering huge areas with windmills.
What makes nuclear power "green" is how small a footprint the plants have. In a few hectares of land you can produce as much power as covering the whole state with river dams or windmills.
I've been hearing about this for the past few days, but I have yet to see what kind of nuclear plant they're talking about building.
I'm really hoping we take a cue from France (yeah yeah, cheese eating surrender monkeys and all that... Fact is, they've been doing nuclear power a lot, and doing it much more recently than us), and standardize a reactor design or three to hopefully avoid some of that red tape.
Given the things you listed above - how come the French seem to make it work for them?
Does the U.S. have native coal and oil supplies that make these other sources more viable?
I'm just curious as to what the big difference is that allows one country to produce almost 75% of it's energy needs but elsewhere it's not possible?
I'm not an Obama fan, but when he does something right he deserves credit for it, so good job Mr. President. I just hope this doesn't get bogged down in too much bureaucracy and lawsuits by "environmentalists." Note how "environmentalists" is in quotes because anyone rational who claims to care about air pollution, global warming, deforestation, etc. etc. should love the idea of new, very safe nuclear power plants. A back of the napkin calculation means a 1.1 Gigawatt reactor can put out the peak energy of 110 of the big 10 Megawatt wind turbine... and the wind turbine can't output at peak energy all the time. Take into account the fact that the land footprint for a nuclear power plant is tiny compared to wind or solar and you have a solution that is a very good thing for the environment.
As for nuclear waste, it's a political problem not a technological problem. Despite the fear-mongering you hear about "10,000 years of waste" the truly nasty stuff actually has a much shorter half-life, and the stuff that is radioactive for 10,000 years is dangerous... but not any more dangerous than the chemicals that get spewed from Coal-fired plants or the chemicals that are used in manufacturing photo-voltaic solar panels. One other thing.. if reprocessing were actually used in the US the amount of this nasty waste would be much much lower to boot. Once again, politics trumps technology in preventing solutions to problems from actually being implemented.
AntiFA: An abbreviation for Anti First Amendment.
This is a pragmatic solution to the problems of global warming and foreign energy dependence. There's nothing magically evil about nuclear power. Environmentalists should applaud this move.
(-1, Raw and Uncut is the only way to read)
If it's still radioactive enough to be dangerous. It's still radioactive enough to be used for electricity.
We just have retarded 'recycling laws'. Imagine if the US outlawed Aluminum recycling because at some point in the process you could use it as Thermite. That's how stupid our nuclear rules are.
No one will say nuclear is without serious drawbacks, but modern reactor design has pretty much reduced those to a single large "what do we do with the waste?" issue. I would rather have a comparatively small amount of containable waste and eons of time to figure out how to make it "go away"(TM) then have much larger environmental impacts which aren't so simple. It's reasonable to expect the human race to come up with a way to render a few hundred tons of radioactive waste inert in the semi-near future. It's much less reasonable to expect us to figure out how to scrub (billions/trillions/quadrillions?) tons of CO2 and other nasties out of the atmosphere, and deal with the other larger scale issues coal/oil/gas produce.
I think spent nuclear fuel should be stored in the U.S. Capitol.
It's about time some common sense was applied to the issue.
Does anyone realize that you and I will each produce about a coke-can worth of nuclear waste in our lifetime (a TED speaker mentioned this, can't find the source atm)? I think that's pretty easy to store. At least compared to the thousands of tonnes of coal that would have to be burned in its place.
You say the air is polluted and we have to stop burning coal; but you helped keep that industry alive because you protested nuclear energy into the dark ages for the past thirty years. Our modern lives don't exist without electricity and generating it is no easy task. There are trade-offs. I think we would have been better off if nuclear energy development had continued: we'd have thirty years more experience building, developing, and maintaining it.
Good on this Obama guy for having a little common sense.
I would be stunned, stunned if every industry with the word "nuclear" in its name, even the nuclear weapons industry(including the crapfest that was the soviet unions nuclear program) has caused more cancers deaths, injuries and poisonings than the worldwide coal industry.
But coal isn't sexy.
Coal isn't scary.
If tomorrow we swapped every coal plant in the world for modern nuclear plants it would do vastly more good for the environment than every single accomplishment of every Greenpeace like organisation the world over combined has ever accomplished.
But no.
Atoms are scary.
Nuclear waste isn't a problem, it's an opportunity. That nuclear waste, is in fact, valuable fuel in some types of reactor designs. Notably, the Integral Fast Reactor-style of design (and, I believe there are some other design concepts being researched along similar lines). I've heard estimates (though I don't really know if they are true or not, but I've no current knowledge to contradict it) that the current 'reserves' of nuclear waste could power reactors for something like 500 years or 1000 years without mining any 'new' uranium.
However, I think the Obama administration is making a bit of a mistake. It's my understanding that the reactor designs they are getting built are still based upon the once-through concept, which will need 'new' uranium to be mined and enriched, and produce more 'waste'. Seems to me we should really be pushing to the 'recycling' types of reactor designs, and maybe put a moratorium on importing any more uranium into the country. We should be trying to phase out the old style, once-through reactors.
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SA Forums user: grover
Has anyone suggested simply eating it? It would unfortunately then collect and concentrate in sewage treatment plants and septic tanks, and so would defeat the purpose, but I'm curious...
12,000 metric tons of high-level waste (mostly spent reactor fuel rods) is produced worldwide each year. If that waste was let age for a few years like fine whiskey, split up into tiny 1.6mg portions encapsulated in glass, and then one fed to every person in the world...
a) Spent nuclear fuel rods, clad or declad, from commercial electricity generating reactors; average radioactivity being more than 2.5 million curies per cubic meter.
b) Semi-liquid sludge from nuclear bomb fabrication waste processing residue - average radioactivity being about 3500 curies per cubic meter.
All this waste contains five shorter lived and longer lived radionuclides of main concern. The shorter lived are strontium-90 whose half life, t1/2, is 28.5 years, and cesium-137 whose half life, t1/2, is 30 years. See Ref. 1 for the half-life values used in this study. The radioactivity of these shorter lived nuclides is approximately 95% of the total radioactivity of the nuclides of concern. Total hazardous life for these shorter lived nuclides is considered to be between 600 years and 1000 years depending upon one's point of view.
The longer lived isotopes are plutonium-239 whose t1/2 is 24,110 years, plutonium-240 whose t1/2 is 6,540 years, and curium-245 whose t1/2 is 8,500 years. Plutonium-238 whose t1/2is 88 years will have essentially disappeared after several thousand years, so in storage terms of the longer lived elements this isotope is not of concern as long as it will have been successfully contained for the next several thousand years. As for the life of these longer lived materials, the NRC considers 10,000 years as the storage time required; however, some people consider a lifetime as long as 100,000 years to 500,000 years as more appropriate.
Sr-90 is a beta emitter, and the radiation won't penetrate the glass capsule.
C-137 is a beta and gamma emitter, with 75% the energy released as beta, and the rest as 33keV and 662keV gamma.
1 cubic meter of waste: 2.5 million curies
% radiation in short-lived Sr-90/C-137 isotopes: appx 95%
% radiation capable of penetrating capsule: appx 13%
World population: 6.70 Billion
Average mass of a human: 70kg
Time for complete digestion: 24hr
1 Ci = 37GBq
1 rad = 0.01J/kg of absorbed radiation
1 rem = rule of thumb is 1 rad, but it's actually a lot more complicated
Q for gamma, external = 1
Q for alpha, external = 0
Q for beta, external = 0
1 Sv = Q x 100rem
1keV = 1.60217646 × 10-16 joules
Density of fuel rods: 11.0g/cc
Volume of fuel per capsule: 1.6mg/11.0g/cc= 0.145nm^2
"Dangerous" radiation emitted from 1m^2: 2.5MCi * .95 * .13 = 308kCi = 1.14*10^16Bq
"Dangerous" radiation emitted from 0.145nm^2: 1.14*10^16Bq/6.7G/3=567kBq/meal
% of gamma rays striking human body absorbed by human body: appx 15%
Radiation absorbed by the body: 85kBq
Energy absorbed: 85kBq X (33keV/Bq+662keV/Bq)/2 * 1.60217646*10^-16 J/keV * 24*60*60s= 41mJ.
Energy absorbed per kg: 41mJ/70kg/0.01J/kg = 0.6mrad
Radiation exposure: 0.6mrem per meal
Radiation exposure: 639mrem per year, or appx 255SWW.
Conclusion: we could quite literally eat all the nuclear waste generated worldwide and barely double our annual exposure to natural radiation. Not that I'd advocate this, but jesus christ, there's nothing wrong with burying it all in a hole in the ground!
Alternately, I could just go around the nation beating people with spent fuel rods until they gain some perspective in the matter.
Apropos of this, I'd summarize one of his points (he has many, all quite insightful) as: if we all do a little, we only accomplish a little.
Standby mode is a complete canard, and fixing it won't even come close to addressing our energy problems. Combine all of your standby mode power, and it would be dwarfed by the power taken up by your A/C, or your computer (how many of us have a 200-300W computer left on all the time?), or your TV. It would take hundreds of devices in standby mode to make up for the power taken up by a comparatively low-power computer that's left on 24/7. Fixing standby mode devices is fixing a problem that's almost an order of magnitude smaller than the real one.
The problem is, telling people to address the real problems involves asking them to use less (use less A/C, turn off your computers, watch less TV, buy a smaller/lower power TV), which is a complete non-starter in today's environment.
Waste storage is well handled. The eventual end point for the small amounts of HE waste is as a glass, which is stored in columns inside cylindrical steel cans. This glass can not "leak" (certainly not "will eventually leak"). They are stored underground in caverns and monitored. Even if one were to be submerged in water, the glass would not dissolve, although the storage sites are picked to avoid water tables anyway. Some of these cans are also set into concrete.
It's not like on "The Simpsons" or on CSI where nuclear waste is a bright green glowing liquid that is shoved into a rusty steel oil drum with a badly fitting cap and excess spilling down the sides where it was carelessly topped up.
We do not want coal fired plants. They release high amounts of radioactivity into the atmosphere, and don't just produce CO2 - there are other wastes to get rid of, including a ton of ash and nasty sulphurous compounds, and carbon capture is not a long term solution. It would be better to simply compress it and use it rather than pump it back into the ground. Perhaps when fridges and AC units start using liquid CO2 as their refrigerant we'll see more of that.
I remember researching an article for coal plants, they had 32,000 injuries and 100~ deaths per year from coal mining. But hey, out of sight, out of mind right? The boogey man that is "nuclear energy" must be stopped because it MIGHT hurt someone.