Stanislaus
Hydro power plant · Tuolumne County, California
Nameplate capacity
82 MW
Rank in California
#319
of 1,897 plants
In service since
1963
March 1963
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Pacific Gas & Electric Co.
- County
- Tuolumne County
- Generating units
- 1
- Share of state capacity
- 0.08%
- Rank among hydro plants in California
- #45 of 244
- EIA plant code
- 285
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| HC1 | Conventional Hydroelectric | 82 MW | 91 MW | 1963 | 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
| Estrella Solar & Storage | Solar | 84 MW |
| AES ES Alamitos 2 LLC | Battery storage | 82 MW |
| Pit 3 | Hydro | 80 MW |
| Angela Solar Project | Battery storage | 80 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 82 MW solar plant and a 82 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