Big Creek 2A
Hydro power plant · Fresno County, California
Nameplate capacity
110 MW
Rank in California
#250
of 1,897 plants
In service since
1928
August 1928
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Southern California Edison Co
- County
- Fresno County
- Generating units
- 2
- Share of state capacity
- 0.10%
- Rank among hydro plants in California
- #36 of 244
- EIA plant code
- 322
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | 55 MW | 50 MW | 1928 | Operating |
| 2 | Conventional Hydroelectric | 55 MW | 50 MW | 1928 | Out of service but expected to return to service in next calendar year |
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
| Separator (Etiwanda) BESS | Battery storage | 113 MW |
| Valentine Solar, LLC | Solar | 111 MW |
| Catalina Solar LLC | Solar | 110 MW |
| Geothermal 1 | Other | 110 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 110 MW solar plant and a 110 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