Frank Ackerman
Frank Ackerman is principal economist at Synapse Energy Economics in Cambridge, Mass., and a Dollars & Sense Associate.
Nuclear decommissioning is always expensive. At the end of a nuclear power plant’s lifetime, it must be disassembled, and safe storage must be found for a huge quantity of nuclear waste. Some of it will be hazardous for tens of thousands of years, and must be buried in a storage facility that will remain secure for much longer than the entire history of human civilization to date. The German government has allowed the country’s electric utility companies to buy their way out of responsibility for nuclear waste storage at a price of 23.6 billion euros, but that may not be enough.
Germany has committed to closing all its nuclear plants by 2022. This deadline was first adopted in 2002 by a Social Democratic-Green coalition government, responding to Germany’s strong anti-nuclear movement. In 2010, Chancellor Angela Merkel’s conservative government extended the deadline by up to 14 years. Soon after Japan’s Fukushima nuclear disaster in 2011, however, Merkel reinstated the 2022 deadline. Perhaps the only world leader who is also a physicist, she was newly impressed at the risk of nuclear accidents—and the risk of losing elections to the then-resurgent Green Party, riding the wave of post-Fukushima opposition to nuclear power. Of the 17 German reactors that were operating at the beginning of 2011, only eight are still on line. All will be permanently unplugged by the end of 2022.
Earlier retirement of nuclear plants affects the timing of decommissioning costs, but barely changes the magnitude. The main economic impact of early retirement for nukes is the loss of the low-cost electricity they could have produced in their remaining years. Most of the enormous costs of nuclear power are for initial construction and final decommissioning. With construction costs already paid via electric rates, and decommissioning costs already inescapable, the additional costs of operating a reactor for another year are relatively modest.
Does that mean that Germany’s early retirement of nuclear plants is an expensive mistake, potentially destabilizing the grid, increasing carbon emissions from coal and gas plants, and pushing up electricity imports? In a word, no.
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