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NUCLEAR POWER PLANTSSan Onofre Nuclear Generating Station
San Onofre Nuclear Generating Station is a 2,254 MW retired nuclear power plant in San Diego County, California, operated by Southern California Edison Co.
Plant statusClosed
- Planning (completed)
- Consented (completed)
- Construction (completed)
- OperatingAug 1983 (completed)
- ClosedJun 2013 (current stage)
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| 2 | Nuclear | 1,127 MW | Retired |
| 3 | Nuclear | 1,127 MW | Retired |
Plant details
- Operator
- Southern California Edison Co
- Location
- San Diego County, California
- Balancing authority
- CISO
- Sector
- Electric Utility
- Capacity
- Retired: 2,254 MW
- First unit online
- Aug 1983
- EIA plant ID
- 360
Location
33.3688, -117.5549
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Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem