28th largest plant in Idaho · 3506th nationally
Twin Falls (Id) is a hydroelectric power plant in Idaho with a nameplate capacity of 52.7 MW. It generates roughly 37.1k MWh per year — enough to power about 3,535 average U.S. homes.
Its capacity factor of 8% reflects intermittent or peaking operation.
| Plant Name | Twin Falls (Id) |
|---|---|
| Operator | Idaho Power Co |
| City | Kimberly |
| County | Twin Falls County |
| State | Idaho |
| ZIP | 83341 |
| Coordinates | 42.58920, -114.35530 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 2 | Conventional Hydroelectric | Water | 44.3 MW | Operating | 1995 |
| 1 | Conventional Hydroelectric | Water | 8.4 MW | Operating | 1935 |
| NERC Region | WECC |
|---|---|
| Balancing Authority | Idaho Power Company |
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.