64th largest plant in Washington · 3178th nationally
Long Lake is a hydroelectric power plant in Washington with a nameplate capacity of 70.0 MW. It generates roughly 413.0k MWh per year — enough to power about 39,329 average U.S. homes.
Its capacity factor of 67% puts it in the middle range — running steadily but not full-time.
| Plant Name | Long Lake |
|---|---|
| Operator | Avista Corp |
| City | Ford |
| County | Lincoln County |
| State | Washington |
| ZIP | 99013 |
| Coordinates | 47.83444, -117.83611 |
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 | 17.5 MW | Operating | 1915 |
| 2 | Conventional Hydroelectric | Water | 17.5 MW | Operating | 1915 |
| 3 | Conventional Hydroelectric | Water | 17.5 MW | Operating | 1919 |
| 4 | Conventional Hydroelectric | Water | 17.5 MW | Operating | 1924 |
| NERC Region | WECC |
|---|---|
| Balancing Authority | Avista Corporation |
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.