86th largest plant in Idaho · 6020th nationally
Falls River Hydro is a hydroelectric power plant in Idaho with a nameplate capacity of 9.0 MW. It generates roughly 44.2k MWh per year — enough to power about 4,214 average U.S. homes.
Its capacity factor of 56% puts it in the middle range — running steadily but not full-time.
| Plant Name | Falls River Hydro |
|---|---|
| Operator | Marysville Hydro Partners |
| City | Ashton |
| County | Fremont County |
| State | Idaho |
| ZIP | 83420 |
| Coordinates | 44.05970, -111.35350 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | Water | 4.5 MW | Operating | 1993 |
| 2 | Conventional Hydroelectric | Water | 4.5 MW | Operating | 1993 |
| NERC Region | WECC |
|---|---|
| Balancing Authority | Bonneville Power Administration |
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.