Bill Gates On Nuclear Energy: Compared To Coal, It Is Still Safer
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http://www.washingtonpost.com/blogs/ezra-klein/post/how-we-g...
http://en.wikipedia.org/wiki/Great_Smog http://en.wikipedia.org/wiki/Bhopal_disaster http://en.wikipedia.org/wiki/Banqiao_Dam http://en.wikipedia.org/wiki/Minamata_disease
I live in Albany, NY about 80 miles from the Vermont Yankee nuclear plant, a Mark 1 GE reactor whose operator has a history of bad practices, like operating at 120% of capacity for extended periods and regularly releasing tritium into the Connecticut River. The facility has exceeded it's service life, and the operator is suing the State of Vermont for a license extension to make some more money on the place before having to clean up the site.
While coal plants in Ohio and Western NY probably pose a greater health hazard, there are other risks as well -- if a black swan event causes a serious incident at this aging facility, I live just outside of the "no humans allowed" zone. My family and relatives are in that radius and would be financially ruined by such an event.
I want a non-profit, quasi-military like organization operating plants in a transparent manner. I want aging reactors replaced by designs where operating safety was a bigger consideration in the design of the reactor. Operating these facilities with a bias towards making money for the operator is not in the public's interest.
A quasi-military / government organization operating transparently? Good luck with that.
Isn't this exactly the case that insurance is designed for? A catastrophic event that is exceedingly unlikely to happen?
http://www.nrc.gov/reading-rm/doc-collections/fact-sheets/fu...
If an insurance company were to insure against such risks it would happily collect money from its customers. After a couple of years, its shareholders would force it to make dividend payouts.
Then if the 'un'thinkable were to happen, it would go broke, and the customers would not get the money they paid for.
To my mind, No One can be responsible for something that is impossible to control when things go bad. It is not that I don't trust engineers, but you can not compare profit vs. risk when you can not control risk.
For every one person killed by nuclear plants, thousands die because of coal, and other kinds of power plants don't stack up well against nuclear either.
Not to be picky, but we are seeing some of the first aging nuclear facilities being operated beyond their designed lifetime by people who don't deserve to be qualified as competent. Coal has killed more people than nuclear, but it certainly seems nuclear power operators are well prepared to close that gap. :-/
I worry about future failures as those reactors grow old.
Having said that, it would be much wiser to build more modern, resilient, nuclear power plants than the equivalent capacity in coal.
Now that we have them though, why can't we just shut them down? Because of the energy deficit that would create since we're still pulling on the nuclear handbreak.
It won't be pretty.
http://nextbigfuture.com/2011/03/deaths-per-twh-by-energy-so...
Chernobyl, an INES-7 killed 56 people. Plus another 4000 from radiation.
As previously linked, check these out: http://en.wikipedia.org/wiki/Great_Smog http://en.wikipedia.org/wiki/Bhopal_disaster http://en.wikipedia.org/wiki/Banqiao_Dam http://en.wikipedia.org/wiki/Minamata_disease
The Great Smog of London killed twelve million people. Banqiao Dam killed 171 000 and destroyed homes for another eleven million people.
Don't get me wrong. I like nuclear. I just know it's dangerous and the consequences of one accident can be pretty scary and long lasting.
Let's stick to the current facts please. When someone dies from exposure to one of these "holding ponds" then we can update the model.
But, you can accurately quantify the risks of coal using current facts, because the direct effects of coal power are measurable. When you stop using coal, the effects start to go away.
Even with rooftop solar, you can measure the risks of maintenance personnel falling off of roofs and production accidents. Again, current risks that can be measured and evaluated. If you take the panel off of your roof, there is zero risk of someone dying as a result of your panel. In the year 2200, I can say conclusively that no human will be injured as a result of the solar panel on my roof.
Nuclear is different, because while the operating lifetime of the plant is dozens of years, it leaves behind waste products which introduce life-threatening risks for hundreds or thousands of years. Nobody on earth has a viable long-term strategy for managing waste products today, nor an ETA for when that strategy will be devised and implemented.
That doesn't mean that nuclear energy is evil or otherwise morally reprehensible -- it is not. But ignoring obvious long term risks by narrowing the scope of what you consider a risk to be is not an apples to apples comparison.
FWIW I do not see what is so hard about long term storage of nuclear waste. 1. Go to somewhere which never has earthquakes 2. build a shed 3. put the waste in it
"The NRC will require retrieval to protect public health and safety in the event the site, design, or operations proves to be unsuitable. Based on performance confirmation data, the NRC will determine whether the repository system or subsystem (natural or engineered) has failed or is expected to fail to meet the performance criteria. If such failure is determined at any time during the preclosure period, the NRC may direct the DOE to retrieve the waste. The DOE could retrieve waste for its own reasons without being directed by the NRC. Such activity, however, must be carried out under applicable NRC regulations governing movement of waste. It should be noted that the NRC retrievability provision in Part 60 is only intended to protect the public radiological health and safety."
Summary: in case the repository method is all screwed up and we gotta put it somewhere else.
IIRC this is not true. There are, however, a strategies that people don't like.
Doesn't mean they're not viable.
However, there are designs which would keep the fuel underwater for longer periods of time, like the B&W mPower modular reactor, which has a cooling pool in the containment structure with enough capacity to hold all waste generated during the 60-year design lifetime.
All this is, of course, figured into the per-kilowatt-hour death rate when it actually hurts someone. The spent fuel pools are considered part of the plant for the purposes of risk assessment. In normal operation, of course, the spent fuel pool keeps the radioactivity nicely contained and doesn't hurt anyone.
The lack of people who can reliably operate in a perfectly incorruptible governing capacity, whether governing people, budgets, or nuclear power plants, is precisely why we had to invent democracy.
If you find a non-profit, quasi-military like organization working in a transparent manner, give them the freaking world.
http://nextbigfuture.com/2011/03/deaths-per-twh-by-energy-so...
I'm not familiar enough with the methodology to dispute it's finding regarding deaths, but I'd argue that evaluating risks solely on the number of attributable deaths is not a full accounting of risk.
What is the economic and social impact of the 20 mile exclusion zone around Fukushima? You're looking at a handful of deaths, but many lives have been affected nonetheless. If my rooftop solar panel kills my family somehow, that is a personal tragedy, but the scope in terms of people affected is nothing like a rare, but catastrophic nuclear failure.
Do we count the cost of side-effects like wars and oppression in our energy ? Think about Libya for oil or Niger for Uranium. Do we count the cost for democracy of the impact of energy lobbies ? Centralized production entails centralized structures which often have a tremendous influence (in France there was never ever any democratic feedback loop about nuclear energy).
The cynical view though is that this is nothing compared to other "industrial risks" and to the insiduous and continuous risk we are producing by saturating our planet with garbage.
That does not look all that well now. Just sain'
https://secure.wikimedia.org/wikipedia/en/wiki/Chernobyl_dis...
Estimates of the number of deaths potentially resulting from the accident vary enormously: Thirty one deaths are directly attributed to the accident, all among the reactor staff and emergency workers.[10] A UNSCEAR report places the total confirmed deaths from radiation at 64 as of 2008. The World Health Organization (WHO) suggest it could reach 4,000.[11] A 2006 report predicted 30,000 to 60,000 cancer deaths as a result of Chernobyl fallout.[12] A Greenpeace report puts this figure at 200,000 or more.[13] A Russian publication, Chernobyl, concludes that 985,000 excess deaths occurred between 1986 and 2004 as a result of radioactive contamination.[14]
http://en.wikipedia.org/wiki/Traveling_wave_reactor#Travelli...
Something of this nature is usually what is meant when people say "burn nuclear waste".
There will still be the other kind of nuclear waste, namely fission products, but their half-lives are on the order of decades instead of centuries.
A plasma is basically a just a gas where the atoms have no electrons. To get rid of nuclear waste, you need to get the nuclei to split into less volatile isotopes.
Current nuclear reactors basically suck because they are the children of war ! They wanted to make a big scary bomb first. No surprise they chose the most dangerous element ! It's the same thing as why space flight is so expensive. Each communications satellite has to be the shape of a hydrogen bomb.
Thorium reactors are still in research phase. However, take a look at these quick bits from Wikipedia:
- Rubbia states that a tonne of thorium can produce as much energy as 200 tonnes of uranium, or 3,500,000 tonnes of coal.
- just 8 tablespoons of thorium could provide the energy used by an American during his or her lifetime.
- there is no possibility of a meltdown
- it does not produce weapons-grade by-products, and will burn up existing high-level waste as well as nuclear weapon stockpiles
- Weapons-grade fissionable material (233U) is harder to retrieve safely and clandestinely from a thorium reactor
- Thorium produces 10 to 10,000 times less long-lived radioactive waste
- Thorium comes out of the ground as a 100% pure, usable isotope, which does not require enrichment, whereas natural uranium contains only 0.7% fissionable U-235
- Thorium cannot sustain a nuclear chain reaction without priming, so fission stops by default.
- However, unlike uranium-based breeder reactors, thorium requires a start-up by neutrons from a uranium reactor. But experts note that "the second thorium reactor may activate a third thorium reactor
- Thorium is found in small amounts in most rocks and soils, where it is about four times more abundant than uranium, and is about as common as lead
- Thorium-containing minerals occur on all continents.
http://en.wikipedia.org/wiki/Thorium#Thorium_as_a_nuclear_fu...In that case, most of the deaths & cost that occurred in the past would come from the single most sever accident (and this seems to be the case [1])
Moreover, the worse accident (Chernobyl) is not a good guide of how bad things can go: if the probability distribution of number of deaths per accident is fat tailed, then if an accident occurs that is worse than Chernobyl it will probably be much worse.
[1] http://en.wikipedia.org/wiki/Nuclear_and_radiation_accidents
It's a valid concern, but we seem to fixate on the health dangers when coal kills many times more during normal operation and gets a free pass.
http://nuclearfissionary.com/2010/06/09/energy-density-and-w...
http://www.scientificamerican.com/article.cfm?id=coal-ash-is...
Currently solar power is getting much cheaper and more practical. Same thing with wind power. We also have a natural gas which recently has been getting cheaper as large new discoveries are being made.
Natural gas is still a fossil fuel but it is much much cleaner than coal both in terms of health pollutants and in terms of CO2. There are some issues with natural gas extraction, but even if the various environmentally damaging methods of mining the stuff get banned as they should, we still have plenty of natural gas from new discoveries to last us for the foreseeable future.
Thus, we can use natural gas while solar and wind catch up price wise, which will happen sooner than we think. Solar especially is improving faster than anyone thought. Then we can still use natural gas for occasions where solar and wind aren't working.
So the coal/nuclear argument is a false dichotomy. We can have neither. Of course we should run the current nuclear plants until the end of their lives, but there is no reason to build new ones unless some revolutionary technology that makes everything much safer emerges. I would say the only new nuclear plants we should build are ones that burn the waste of the old ones, because those would technically make things safer by removing waste.
Statistically, the long-term damages attributable to total nuclear fuel chains are lower than those of the total natural gas fuel chain.
Every now and then, I see a tech news article about a new breakthrough in solar that should be ready for the market in the mythical "3-5 years" timeframe, then I never hear about it again. I'd be very happy to see some evidence that there's real, marketable progress being made right now that isn't marginal improvements to existing inefficient and expensive technology.
Two more words: electric car.
In the next 30 years a significant fraction of the transportation and other oil-powered infrastructure is going to get connected to the power grid. Solar and wind can barely make a dent in current demand with current technology.
When electric cars get cheap, power demand will explode.
Doing this would cool the earth by about the same amount as moving it ~12.5% further away from the sun.
Solar is not a viable long-term solution.
http://en.wikipedia.org/wiki/Earth%27s_energy_budget#Incomin...
I'm getting 5.510^24 J/yr ~= 5,500,000 EJ/yr (all wavelenghts).
This doesn't make Nuclear energy a smart choice, just because it is better than an even worse choice. We need to stop limiting our view to these two technologies, and start funding crazier energy options that could be cleaner, safer and smarter for the long run.
This would make the storage of waste a lot more manageable.
The reactor can be installed in a relatively safe place and far from any habitants. This is different from Japan which has relatively a smaller and more dangerous land.
It's about as relevant as any random person on the internet.
My solution is the people for nuclear power and those that build the plant, must live next to it.
I put more stock into Bill Gates' opinion than random-internet-person though, not just because he's smart but because he has been spending the last decade in the habit of dispassionately ooking through actuarial tables and thinking about real dangers. That's why so much of his philanthrophic efforts are going towards unsexy things like malaria reduction -- because he and his staff decided to look dispassionately at the statistics and figure out where the greatest lives-saved-per-million-spent is.
If he's telling me that nuclear is safer than coal then I believe he's gone and genuinely satisfied himself that this is the actual statistical truth.
http://www.hindustantimes.com/Japanese-take-shelter-in-N-rea...
Their solution is to turn off your electricity. Hope you enjoy your hand-cranked laptop.
He's also investing in them, as you can see from the article, which makes him more newsworthy than some random person.
> My solution is the people for nuclear power and those that build the plant, must live next to it.
I already live near one. Also, if you look at all the accidents, the workers suffer the most. If they were that against nuclear power, they wouldn't work there.
We need a better long term solution:
Nuclear energy is far less vast, but still huge compared to what we're using today. If you think of easy energy sources as civilization's starting capital, nuclear can give us a very long runway.
I'll wait for the next option, thanks.
Unfortunately, it all goes nowhere because there is no way to make it safe. Burning stuff is an old and well understood process, there is just no way to burn stuff in a radically different way. You can use filters of course but the coal pollutants are so small and the smoke is so much filtering gets too expensive. Coal plants do have filters but they do not catch many of the thousands of pollutants that result from burning coal. And filtering cannot take away the CO2 gas.
So our only option is to trap the gas underground, which is pretty much impossible. Thus, safe coal becomes a mirage that is always a couple of years away but you can never get to.
It is clear that we spend less money on safe coal than we do on nuclear. Nuclear receives enormous amounts of subsidies. Most of the budget of the DoE is devoted to nuclear in one way or another. But it is pretty clear that even if we spent more money on coal it would not get us anywhere.
DO you know why originally Nuclear power was pushed as a safe energy source?
To make nuclear weapons, they needed a guaranteed supply of raw fuel material. All nuclear plants with the exception of some recent designs which get further away from this produce nuclear material that is ideal to use in nuclear weapons.
It had very little due with any actual safety concerns.
It is one of the most extreme hazards forced on the world by the industrial-military complexes of all nations.
Lets stop calling it safe and call it what it is in reality..in fact a experimental way to generate energy that is somewhat dangerous.
A good example? Thorium reactors [1], which generate very little in the way of weapons-grade by products. Why is it we cannot get our governments to allow research & construction into this arm of nuclear power?
[1] http://en.wikipedia.org/wiki/Thorium#Thorium_as_a_nuclear_fu...
http://online.wsj.com/article/SB123690627522614525.html
The fact of the matter is that our outdated laws lead to a lot of waste that really isn't waste. The example of France in the article is very telling.
What remains after all this material has been extracted from spent fuel rods are some isotopes for which no important uses have yet been found, but which can be stored for future retrieval. France, which completely reprocesses its recyclable material, stores all the unused remains -- from 30 years of generating 75% of its electricity from nuclear energy -- beneath the floor of a single room at La Hague.
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Option 1: coal plant that, statistically and averaged over all plants, kills x amount of people every day of the year (through exhaust pollution, killed miners, etc.)
Option 2: nuclear plant that kills y amount of people, averaged the same; direct kills through accidents + indirect through increased cancer risks (discounted for natural occurrences of those cancers etc.)
When x > y, it's better to use nuclear. And y, despite the Fukushima fear mongering, is quite small.
The matter is not 'nuclear can fail, so we shouldn't use it'; the matter is 'which one has the lowest overall cost' (cost taking into account lives, health risks, economic risks etc); and then choosing that one.
Conflict of interests. Move on, people.
Yeah, you're right, but then again, the title should have been more like "Atomic Industry Investor Bill Gates On Nuclear Energy: Compared To Coal, It Is Still Safer", because right now I tend to read it more like "Renowned philanthropist Bill Gates On Nuclear Energy: Compared To Coal, It Is Still Safer"
The flip side of your argument is that if Gates thinks nuclear is the next great thing then why is he NOT investing in it? Personally, I would find it odd if Gates thinks something is the right way to go and didn't invest. It would signal he's not very serious about the issue.