Longest-Operating US Reactor: Nine Mile Point Unit 1

Nine Mile Point Unit 1 in New York State, which entered commercial service in December 1969, is the oldest operating nuclear reactor in the United States.

Sources

• How old are U.S. nuclear power plants, and when was the newest one built? - Frequently Asked Questions (FAQs) - U.S. Energy Information Administration (EIA)
• U.S. nuclear industry - U.S. Energy Information Administration (EIA)

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