San Francisquito 1
Hydro power plant · Los Angeles County, California
Nameplate capacity
66 MW
Rank in California
#363
of 1,897 plants
In service since
1983
December 1983
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Los Angeles Department of Water & Power
- County
- Los Angeles County
- Generating units
- 4
- Share of state capacity
- 0.06%
- Rank among hydro plants in California
- #59 of 244
- EIA plant code
- 6479
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1A | Conventional Hydroelectric | 23 MW | 27 MW | 1983 | Operating |
| 6 | Conventional Hydroelectric | 23 MW | 27 MW | 1987 | Operating |
| 4 | Conventional Hydroelectric | 11 MW | 12 MW | 2023 | Operating |
| 3 | Conventional Hydroelectric | 9.9 MW | 11 MW | 2017 | 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
| Bucks Creek | Hydro | 66 MW |
| Roseville Power Plant #2 | Natural gas | 66 MW |
| RE Gaskell West 2 LLC | Solar | 65 MW |
| San Jacinto Grid, LLC | Battery storage | 65 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 66 MW solar plant and a 66 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