The Oconee Nuclear Generating Station is a nuclear power plant located on Lake Keowee in Seneca, South Carolina, and has an energy output capacity of over 2,500 megawatts. It is the second nuclear power plant in the United States to have its operating license extended for an additional twenty years by the U.S. Nuclear Regulatory Commission (NRC) (the application for the Calvert Cliffs plant in Maryland preceded it).

Oconee Nuclear Generating Station has three Babcock and Wilcox pressurized water reactors, and is operated by Duke Energy.

Oconee was the first of three nuclear stations built by Duke Energy. According to Duke Energy's web site, the station has generated more than 500 million megawatt-hours of electricity, and is "the first nuclear station in the United States to achieve this milestone."
Oconee Nuclear Generating Station
Country United States
Locale Seneca, South Carolina
Status Operational
Commission date Unit 1: July 15, 1973
Unit 2: Sept. 9, 1974
Unit 3: Dec. 16, 1974
Licence expiration Unit 1: Feb. 6, 2033
Unit 2: Oct. 6, 2033
Unit 3: July 19, 2034
Construction cost ~$500 million
Owner(s) Duke Energy
Operator(s) Duke Power
Architect(s) Duke and Bechtel

Power generation information
Annual generation 20,565 GW·h
Net generation >500,000