9th largest plant in California · 298th nationally
Helms Pumped Storage is a hydroelectric power plant in California with a nameplate capacity of 1,053 MW.
| Plant Name | Helms Pumped Storage |
|---|---|
| Operator | Pacific Gas & Electric Co. |
| City | Shaver Lake |
| County | Fresno County |
| State | California |
| ZIP | 93664 |
| Coordinates | 37.02930, -118.96825 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Hydroelectric Pumped Storage | Water | 351 MW | Out of Service | 1984 |
| 2 | Hydroelectric Pumped Storage | Water | 351 MW | Out of Service | 1984 |
| 3 | Hydroelectric Pumped Storage | Water | 351 MW | Out of Service | 1984 |
| NERC Region | WECC |
|---|---|
| Balancing Authority | California Independent System Operator |
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.