Antinuclear

“Nuclear Power Is Already a Climate Casualty”

French Rivers Heat Up, Luck Is Not a Strategy for the Ukraine, – We Chat with Nuclear Expert Dr. Paul Dorfman

Hot Globe Substack, STEVE CHAPPLE, JUL 20, 2023

HOT GLOBE:

Paul, thanks for joining us. Let’s talk about nuclear and climate change.

PAUL DORFMAN:

 Thanks, Steve. It’s important to understand that nuclear is very likely to be a significant climate casualty. 

For cooling purposes nuclear reactors need to be situated by large bodies of water, which means either by the coast or inland by rivers or large water courses. Sea levels are rising much quicker than we had thought and inland the rivers are heating up, potentially drying up, and also subject to significant flooding and flash-flooding and inundation. The key issue for coastal nuclear is storm surge, which is basically where atmospheric conditions meet high tide, which is essentially what happens in Fukushima.

HOT GLOBE: The decommissioned nuclear plant in southern California at San Onofre is a case in point with the cans of nuclear waste still stored in a concrete containment box lapped by the rising tide–

DORFMAN: In France where I am right now [the government utility] just today put out once again warnings about their reactors having to power down because of low river flow, heated river flow. Now that’s not simply for reactor cooling. It’s about the water that the reactors are cooled by, which then need to be discharged back into the rivers. This super-heated water would basically kill the ecology. The reactors have to power down so as not to discharge heated waters back.

Nuclear has been touted as a potential ameliorated solution to climate. The problem, of course, is that nuclear will be, and relatively soon, a climate casualty, so coastal nuclear, unfortunately, is likely to flood via storm surge and inland nuclear will struggle more and more to get reactor cooling water and be able to discharge super-heated water to the receiving river waters.

“The notion that nuclear will will help us with climate is fortunately –unfortunately–simply not the case.”

HOT GLOBE: In America there’s an awful lot of new money sloshing around for climate remediation. Do you have an opinion on Small Nuclear Reactors?

DORFMAN: It’s not been simply I, but the former head of the US nuclear regulatory commission, the NRC, who coauthored a key study which says quite clearly that small modular reactors produce significantly more radioactive waste than conventional reactors. The waste issue is absolutely key, but there are other issues as well. I remember being invited to give a talk at the Royal United Services Institute in the UK, basically the governmental intellectual arm of the military. The compact design of small nuclear reactors is not suited to defense in depth of the nuclear island and the military guys really seemed to get and understand this, similar problem to conventional reactors in terms of safety and security as we’re finding out in Ukraine now.

The other issue is what’s known as the “economies of scale.” The bigger the nuclear plant the cheaper. ……….The economics of small nuclear reactors are proving deeply problematic. The cost per MW hour is rising. Already conventional reactors are hugely, massively, 4 to 5 times more expensive than renewables-plus, and it’s looking more and more that small nuclear reactors will have similar economic and finance problems, and of course small nuclear reactors are still in development. There are no functioning small nuclear reactors in the world producing conventional power, and they are many years from deployment.

So given the fact that we now know we have an existential climate crisis, small nuclear reactors and of course certainly conventional nuclear look to be far too costly and far too late to help the climate crisis.”

HOT GLOBE: Tell us a little bit about the situation in Zaporizhia. It comes and goes in the American media, but it seems pretty freaking scary to us over here in California! How do you estimate the dangers in the last month or so?

DORFMAN: We’ve been lucky so far but luck isn’t a strategy. Zaporizhia –6 very large nuclear power plants, the largest station in Europe with a very significant radiological inventory and critically very significant spent fuel, spent high level radiological nuclear inventory–is in the middle of a shooting war. Now there’s no way that any nuclear power plant can survive a concerted military attack. No nuclear power plant in the world is designed to do this. The International Atomic Energy agency has been very quiet about this for the last few decades which is kind of worrying given the fact that it seems obvious. Basically, people like me and many others haven’t wanted to talk about this in the past for fear of putting ideas into people’s heads, but the cat is really out of the bag now, and in an increasingly unstable world, it seems absolutely clear that nuclear risk for conventional civil nuclear plants is ramping up  both in Zaporizhia and elsewhere whether in Israel, Iran, Pakistan, India or any other potential conflict zone. There’s a very real risk that existing and any new nuclear power plants will be in the firing line.

In Zaporizhia the key concern is cooling-–the cooling ponds are open but the reactors themselves are basically open in all these plants, too. They are in cold shutdown but they also need power to keep the internal sort of governance working, so both the reactors in cold shut down, not in active use and certainly the high level radioactive waste, need cooling. If something God forbid goes wrong you’ll see a worst case scenario. You’ll see what happened at Fukushima. Within eight hours you’ll see hydrogen buildup, hydrogen explosion. You’ll then see significant loss of cooling. If the backup diesel generators don’t run within a day or two, you could well see meltdown. The worst case prognosis is very grave.

HOT GLOBE: Oii. Explain the difference between Chernobyl and Fukushima in terms of Zaporizhia.

DORFMAN: Chernobyl was a graphite moderated reactor. Graphite is the kind of thing that you find on the inside of a pencil. When Chernobyl blew, this graphite was distributed high into the atmosphere and could blow far and wide. The kinds of reactors that you find in Zaporizhia are not, thank heavens, of that design. They are slightly newer Russian designed reactors which have gone through certain kinds of safety upgrades post Fukushima, not the spent fueling ponds but the reactors themselves, so if the worst were to happen, you wouldn’t see a Chernobyl. You would more likely see a Fukushima because you wouldn’t see this punch out of the graphite particles into the air, which would carry the radiation far and wide. What you would see, unfortunately, is very severe contamination of the immediate area and of the region, certainly of Ukraine, potentially Russia and certainly middle Europe. Now what’s also critically important post-accident is what would happen to the land. Ukraine is a very significant grain producing nation and other populations including the African population absolutely depend on this grain. So

that’s the thing about nuclear, if something goes wrong you can really start to write off a lot of people’s lives.

The high risk of this form of technology when we have other forms of technology that will lead us to net zero—there really isn’t any significantly good reason to go down the new nuclear route for whole sets of reasons and one of those reasons is we’re living in an increasingly unstable world and nuclear is increasingly, civil nuclear, is increasingly risky………………………………………….
more https://hotglobe.substack.com/p/nuclear-power-is-already-a-climate

July 22, 2023 - Posted by Christina Macpherson | Uncategorized