39th largest plant in Idaho · 4300th nationally
Swan Falls is a hydroelectric power plant in Idaho with a nameplate capacity of 27.2 MW. It generates roughly 113.0k MWh per year — enough to power about 10,762 average U.S. homes.
Its capacity factor of 47% puts it in the middle range — running steadily but not full-time.
| Plant Name | Swan Falls |
|---|---|
| Operator | Idaho Power Co |
| City | Kuna |
| County | Ada County |
| State | Idaho |
| ZIP | 83634 |
| Coordinates | 43.24350, -116.37910 |
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 | 13.6 MW | Operating | 1994 |
| 2 | Conventional Hydroelectric | Water | 13.6 MW | Operating | 1994 |
| 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.