76th largest plant in Idaho · 5376th nationally
Cascade Dam (Id) is a hydroelectric power plant in Idaho with a nameplate capacity of 12.4 MW. It generates roughly 35.5k MWh per year — enough to power about 3,384 average U.S. homes.
Its capacity factor of 33% reflects intermittent or peaking operation.
| Plant Name | Cascade Dam (Id) |
|---|---|
| Operator | Idaho Power Co |
| City | Cascade |
| County | Valley County |
| State | Idaho |
| ZIP | 83611 |
| Coordinates | 44.52560, -116.04830 |
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | Water | 6.2 MW | Operating | 1984 |
| 2 | Conventional Hydroelectric | Water | 6.2 MW | Operating | 1983 |
| 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.