85th largest plant in California · 1162nd nationally
White Rock/Slab Creek is a hydroelectric power plant in California with a nameplate capacity of 269 MW. It generates roughly 838.7k MWh per year — enough to power about 79,873 average U.S. homes.
Its capacity factor of 36% reflects intermittent or peaking operation.
| Plant Name | White Rock/Slab Creek |
|---|---|
| Operator | Sacramento Municipal Util Dist |
| City | Placerville |
| County | El Dorado County |
| State | California |
| ZIP | 95709 |
| Coordinates | 38.76534, -120.78737 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| H1 | Conventional Hydroelectric | Water | 133 MW | Operating | 1968 |
| H2 | Conventional Hydroelectric | Water | 133 MW | Operating | 1968 |
| H3 | Conventional Hydroelectric | Water | 2.7 MW | Operating | 2020 |
| H4 | Conventional Hydroelectric | Water | 0.5 MW | Out of Service | 1983 |
| NERC Region | WECC |
|---|---|
| Balancing Authority | Balancing Authority Of Northern California |
Hydroelectric plants spin turbines using falling or flowing water — typically from a dam-impounded reservoir. They are dispatchable, long-lived, and emission-free at the point of generation, though large reservoirs can disrupt rivers and ecosystems and methane can be released from flooded vegetation.