We need to start aggressively deploying all forms of carbon-free power if we are to avoid catastrophic global warming, starting with the lowest cost ones.
That’s what makes the events of March 12, 2011 so tragic. It (once again) shattered the myth that you can do nuclear power on the cheap.

Smoke rises from Fukushima Daiichi power plant’s Unit 1 in March 2011. Via AP
As CAP’s Richard Caperton and I wrote in a CNN piece 2 days after the tragedy:
New nuclear reactors are phenomenally expensive, costing up to $10 billion dollars apiece. Exelon CEO John Rowe said recently that the combination of low natural gas prices and failure of Congress to put a price on carbon dioxide pollution pushes back any significant nuclear renaissance by a “decade, maybe two.”
The U.S. nuclear industry has long argued that new reactors are prohibitively expensive because of an overly burdensome site selection and permitting process, which they say unnecessarily drives up costs. But, in fact, new nuclear plants have seen soaring prices not just in Florida, Texas and other states — but in Finland, Turkey and Canada.
New reactors are intrinsically expensive because they must be able to withstand virtually any risk that we can imagine, including human error and major disasters. Why? Because when the potential result of a disaster is the poisoning — and ultimately, death — of thousands of people, even the most remote threats must be eliminated.
Insurers know that the results of a nuclear catastrophe would be ruinous on a scale that would overwhelm any private company, which is why they won’t insure nuclear plants. Instead, the U.S. government — which is to say taxpayers — takes on the liability for nuclear reactors.
I have always included about one wedge of nuclear power in my “full global warming solution” for stabilizing at 350 to 450 ppm. Of course we need 12-14 of those wedges (and we need to deploy them in 4 decades not 5), so nuclear power is unlikely to be even 10% of the answer. That’s why I don’t put it in the “major climate solution” category, especially in the near term, which is what counts the most.
Based on a 2007 Keystone report, even one wedge of nukes by 2050 would require adding globally, an average of 17 plants each year, while building an average of 9 plants a year to replace those that will be retired, for a total of one nuclear plant every two weeks for four decades — plus 10 Yucca Mountains to store the waste. It is increasingly unlikely it will be among the cheaper options (see below). And the uranium supply and non-proliferation issues for even that scale of deployment are quite serious. See “An introduction to nuclear power.”
The Fukushima disaster, however, accelerated the phase out of nukes in Germany and “all but two of Japan’s 54 commercial reactors have gone offline.” Given the need to keep climate forcings as low as possible, I wouldn’t shutter existing nukes until the clean energy replacements are online, and would prefer to spend big bucks to make them safer. But I can understand where the Germans and Japanese are coming from.
The UK Guardian reports, “Dramatic fall in new nuclear power stations after Fukushima,” noting “Italy and Switzerland have also voted against nuclear energy.” In this country, E&E News (subs. req’d) reports:
Seventy-two percent of those asked answered “no” to the question, “Do you think taxpayers should take on the risk for the construction of new nuclear power reactors in the United States through billions of dollars in new federal loan guarantees for new reactors?”
Again, I don’t think safety in and of itself is the issue, though that is clearly what the nuclear advocates want the debate to be about. The issue is cost — and the need to take the time and spend the money to ensure we don’t have another partial meltdown (or worse) in this country, the need to avoid turning a billion-dollar asset into a 10-billion-dollar liability.
Strikingly, the literature suggests that “nuclear power has a negative learning curve“:
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