Frequently Asked Questions

How many nuclear power plants are in the United States, and where are they located?

There are currently 61 commercially operating nuclear power plants with 99 nuclear reactors in 30 states in the United States. Thirty-five of these plants have two or more reactors. The Palo Verde plant in Arizona has 3 reactors and had the largest combined net summer generating capacity of 3,937 megawatts (MW) in 2012.  Fort Calhoun in Nebraska with a single reactor had the smallest net summer capacity at 479 megawatts (MW) in 2012.

Four reactors were taken out of service in 2013: the Crystal River plant in Florida with one reactor in February; the Kewaunee plant in Wisconsin with one reactor in April; and the San Onofre plant in California with two reactors in June.  The Vermont Yankee plant in Vermont, with a single reactor, was taken out of service in December 2014.

Learn more:

State Nuclear Profiles

U.S. and state nuclear reactor statistics

Nuclear Energy Explained

Data on capacities of individual generators at U.S. power plants (file “GeneratorYyy”)

List of recent power plant retirements

Table 6.4. Retired Utility Scale Generating Units by Operating Company, Plant, Month, and Year, 2013. Electric Power Monthly (February 2014)

Last updated: January 22,  2015

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