140th largest plant in Idaho · 11698th nationally
Little Mac Project is a hydroelectric power plant in Idaho with a nameplate capacity of 1.5 MW. It generates roughly 4.5k MWh per year — enough to power about 431 average U.S. homes.
Its capacity factor of 34% reflects intermittent or peaking operation.
| Plant Name | Little Mac Project |
|---|---|
| Operator | Little Mac Power Company |
| City | Buhl |
| County | Twin Falls County |
| State | Idaho |
| ZIP | 83316 |
| Coordinates | 42.62964, -114.66162 |
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 | 0.4 MW | Operating | 1984 |
| 3 | Conventional Hydroelectric | Water | 0.4 MW | Operating | 1984 |
| 4 | Conventional Hydroelectric | Water | 0.4 MW | Operating | 1984 |
| 1 | Conventional Hydroelectric | Water | 0.3 MW | Operating | 1984 |
| 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.