The Yucca Mountain nuclear waste repository project is now comatose, if not dead. And that puts us back at square one on a crucial question: What are we going to do with all the radioactive waste being discharged by U.S. nuclear power reactors?
Many conservatives on Capitol Hill favor the French "solution": spent-fuel reprocessing. But reprocessing isn't a solution at all: It's a very expensive and dangerous detour.
Reprocessing takes used or "spent" nuclear fuel and dissolves it to separate the uranium and plutonium from the highly radioactive fission products. The plutonium and uranium are then recycled to make new reactor fuel, thereby reducing the amount of fresh uranium required by about 20%. But based on French and Japanese experience, the cost of producing this recycled fuel is several times that of producing fresh uranium reactor fuel.
In the past, about half of France's reprocessing capacity was used to process spent fuel from foreign reactors. Because of the high cost, however, virtually all of those foreign customers have decided to follow the U.S. example and simply store their used reactor fuel.
The French reprocessing company AREVA claims that its method reduces the volume and longevity of the radioactive waste produced by nuclear power reactors. But when you take into account the additional radioactive waste streams created by reprocessing and plutonium recycling, the volume of the long-lived radioactive waste is not reduced. And most of the recycled plutonium is neither destroyed nor reused. Its isotopic makeup makes it difficult to use in existing reactors, so AREVA simply stores most of it at the reprocessing plant.
All in all, reprocessing as practiced in France amounts to an expensive way to shift France's radioactive waste problem from its reactor sites to the reprocessing plant.
For some of AREVA's customers, that is the point. When I asked the fuel managers of Japan's nuclear utilities why they reprocess, their answer was that they would love to store their spent fuel on site as the U.S. does until an underground radioactive waste repository becomes available. But local governments have vetoed dry-cask storage at their nuclear power plants. The stark choice for the industry, therefore, is to either pay for reprocessing or shut down all of Japan's 53 power reactors.
