806th largest plant in California · 5651st nationally
Haypress is a hydroelectric power plant in California with a nameplate capacity of 10.0 MW. It generates roughly 18.5k MWh per year — enough to power about 1,765 average U.S. homes.
Its capacity factor of 21% reflects intermittent or peaking operation.
| Plant Name | Haypress |
|---|---|
| Operator | Eif Haypress Llc |
| City | Sierra City |
| County | Sierra County |
| State | California |
| ZIP | 96125 |
| Coordinates | 39.56568, -120.58168 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| LGEN | Conventional Hydroelectric | Water | 5.0 MW | Operating | 1989 |
| UGEN | Conventional Hydroelectric | Water | 5.0 MW | Operating | 1988 |
| 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.