Nameplate capacity
72 MW
Rank in California
#349
of 1,897 plants
In service since
1957
June 1957
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Oakdale&South San Joaquin Irrigation D.
- County
- Tuolumne County
- Generating units
- 1
- Share of state capacity
- 0.07%
- Rank among hydro plants in California
- #54 of 244
- EIA plant code
- 415
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| H1 | Conventional Hydroelectric | 72 MW | 72 MW | 1957 | 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
| Caribou 1 | Hydro | 74 MW |
| Cresta | Hydro | 74 MW |
| Mountain View I & II | Wind | 71 MW |
| Edwards Sanborn S3 | Solar | 71 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 72 MW solar plant and a 72 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