Nameplate capacity
1,682 MW
Rank in California
#4
of 1,897 plants
In service since
1972
January 1972
Details
- Primary fuel
- Hydro
- Technology
- Hydroelectric Pumped Storage
- Operator
- Los Angeles Department of Water & Power
- County
- Los Angeles County
- Generating units
- 7
- Share of state capacity
- 1.56%
- Rank among hydro plants in California
- #1 of 244
- EIA plant code
- 392
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Hydroelectric Pumped Storage | 271 MW | 271 MW | 1973 | Operating |
| 2 | Hydroelectric Pumped Storage | 271 MW | 271 MW | 1974 | Operating |
| 3 | Hydroelectric Pumped Storage | 271 MW | 271 MW | 1976 | Operating |
| 4 | Hydroelectric Pumped Storage | 271 MW | 271 MW | 1977 | Operating |
| 5 | Hydroelectric Pumped Storage | 271 MW | 271 MW | 1977 | Operating |
| 6 | Hydroelectric Pumped Storage | 271 MW | 271 MW | 1978 | Operating |
| 7 | Conventional Hydroelectric | 56 MW | 52 MW | 1972 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in California
| Dynegy Moss Landing Power Plant Hybrid | Battery storage | 1,848 MW |
| Haynes | Natural gas | 1,739 MW |
| Ormond Beach | Natural gas | 1,612 MW |
| Geysers Unit 5-20 | Other | 1,236 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 1,682 MW solar plant and a 1,682 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All California power plants · What California actually generates