Most US plants have overrun their construction costs substantially and have taken years longer to come online than the industry proposals initially estimated. In fact, Clinton’s final construction cost of $4.25 billion ($8.85 billion today) ran nearly 1,000% over the original budget of $430 million, and the plant was completed seven years behind schedule. The meltdowns at Fukushima in 2011 and subsequent safety retrofits worldwide have also impacted the bottom line.
Overall, says the US Nuclear Regulatory Commission, five American plants have been shut down in the past decade. These include Entergy’s 40+ year veteran Vermont Yankee plant. A total of 19 US nuclear reactors on the east, Gulf, and west coastal and Great Lakes areas are decommissioning. (See the full list and map
here.) About 25% of US reactors have been reported to have operating expenses that render them cost-ineffective and noncompetitive at current rates for electric generation.
Recently, the Kewaunee and Crystal River reactors have closed. By 2020, Fort Calhoun, Fitzpatrick, Clinton, Quad Cities, Oyster Creek, and Pilgrim will soon be on the chopping block. Within the next decade, the US could lose several more reactors. Diablo Canyon, Indian Point, Ginna, FitzPatrick, Three Mile Island, Davis Besse, and Pilgrim all have pressing issues.