Parker Dam
Hydro power plant · San Bernardino County, California
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- U S Bureau of Reclamation
- County
- San Bernardino County
- Generating units
- 4
- Share of state capacity
- 0.11%
- Rank among hydro plants in California
- #31 of 244
- EIA plant code
- 447
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | 30 MW | 30 MW | 1942 | Operating |
| 2 | Conventional Hydroelectric | 30 MW | 30 MW | 1943 | Operating |
| 3 | Conventional Hydroelectric | 30 MW | 30 MW | 1942 | Operating |
| 4 | Conventional Hydroelectric | 30 MW | 30 MW | 1943 | 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
| Niland Gas Turbine Plant | Natural gas | 121 MW |
| Ripon Generation Station | Natural gas | 121 MW |
| Rabbitbrush Solar, LLC | Solar | 120 MW |
| Windstar 1 | Wind | 120 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 120 MW solar plant and a 120 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