White Rock/Slab Creek
Hydro power plant · El Dorado County, California
Nameplate capacity
269 MW
Rank in California
#89
of 1,897 plants
In service since
1968
February 1968
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Sacramento Municipal Util Dist
- County
- El Dorado County
- Generating units
- 3
- Share of state capacity
- 0.25%
- Rank among hydro plants in California
- #9 of 244
- EIA plant code
- 435
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| H1 | Conventional Hydroelectric | 133 MW | 108 MW | 1968 | Operating |
| H2 | Conventional Hydroelectric | 133 MW | 133 MW | 1968 | Operating |
| H3 | Conventional Hydroelectric | 2.7 MW | 2.7 MW | 2020 | 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
| Devil Canyon | Hydro | 276 MW |
| RE Garland | Solar | 273 MW |
| Glenarm | Natural gas | 266 MW |
| Ocotillo Express LLC | Wind | 265 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 269 MW solar plant and a 269 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