Frequently Asked Questions

How old are U.S. power plants?

About 540 gigawatts, nearly 51% of all generating capacity, were at least 30 years old at the end of 2012. Most gas-fired capacity is less than 20 years old, and most wind generation capacity is less than 10 years old. Most coal-fired and hydropower capacity is 30 years or older.

Nearly all nuclear reactors are over 20 years old and about half are over 30.

Learn More: How old are U.S. power plants?

Last reviewed: March 22, 2013


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