140th largest plant in Washington · 12057th nationally
Lilliwaup Falls Generating is a hydroelectric power plant in Washington with a nameplate capacity of 1.4 MW. It generates roughly 6.0k MWh per year — enough to power about 574 average U.S. homes.
Its capacity factor of 49% puts it in the middle range — running steadily but not full-time.
| Plant Name | Lilliwaup Falls Generating |
|---|---|
| Operator | William G. Reed Jr |
| City | Lilliwaup |
| County | Mason County |
| State | Washington |
| ZIP | 98555 |
| Coordinates | 47.47060, -123.11530 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 4735 | Conventional Hydroelectric | Water | 0.2 MW | Operating | 1986 |
| 4736 | Conventional Hydroelectric | Water | 0.2 MW | Operating | 1986 |
| 4737 | Conventional Hydroelectric | Water | 0.2 MW | Operating | 1986 |
| 4738 | Conventional Hydroelectric | Water | 0.2 MW | Operating | 1986 |
| 4739 | Conventional Hydroelectric | Water | 0.2 MW | Operating | 1986 |
| 4740 | Conventional Hydroelectric | Water | 0.2 MW | Operating | 1986 |
| 4741 | Conventional Hydroelectric | Water | 0.2 MW | Operating | 1986 |
| 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.