71st largest plant in Idaho · 5190th nationally
Shoshone Falls is a hydroelectric power plant in Idaho with a nameplate capacity of 14.7 MW. It generates roughly 42.3k MWh per year — enough to power about 4,029 average U.S. homes.
Its capacity factor of 33% reflects intermittent or peaking operation.
| Plant Name | Shoshone Falls |
|---|---|
| Operator | Idaho Power Co |
| City | Twin Falls |
| County | Jerome County |
| State | Idaho |
| ZIP | 83301 |
| Coordinates | 42.59750, -114.40330 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 3 | Conventional Hydroelectric | Water | 11.5 MW | Operating | 1921 |
| 4 | Conventional Hydroelectric | Water | 3.2 MW | Operating | 2020 |
| 1 | Conventional Hydroelectric | Water | 0.6 MW | Retired | 1909 |
| 2 | Conventional Hydroelectric | Water | 0.4 MW | Retired | 1907 |
| 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.