ShutdownUnited States

San Onofre-1

The San Onofre Nuclear Generating Station (SONGS) is a permanently closed nuclear power plant located south of San Clemente, California, on the Pacific coast, in Nuclear Regulatory Commission Region IV. The plant was shut down in 2013 after defects were found in replacement steam generators; it is currently in the process of being decommissioned. The 2.2 GW of electricity supply lost when the plant shut down was replaced with 1.8 GW from new natural-gas-fired power plants and 250 MW from energy-storage projects.

San Onofre-1

Technical Specifications

Capacity
436 MW
Reactor Type
PWR
Model
PWR
IAEA ID
604

Timeline

Construction Started
May 1, 1964
Operational From
January 1, 1968
Shutdown Date
November 30, 1992
Current Status
Shutdown

Location

Country
United States
Region
San Diego County
Coordinates
33.3680°, -117.5560°

Data source: WNA/IAEA • Last verified against IAEA PRIS database