109th largest plant in Washington · 6680th nationally
Calligan Creek Hydroelectric Project is a hydroelectric power plant in Washington with a nameplate capacity of 6.0 MW. It generates roughly 9.4k MWh per year — enough to power about 895 average U.S. homes.
Its capacity factor of 18% reflects intermittent or peaking operation.
| Plant Name | Calligan Creek Hydroelectric Project |
|---|---|
| Operator | Pud No 1 Of Snohomish County |
| City | Snoqualmie |
| County | King County |
| State | Washington |
| ZIP | 98065 |
| Coordinates | 47.60080, -121.68861 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| CC6MW | Conventional Hydroelectric | Water | 6.0 MW | Operating | 2018 |
| NERC Region | WECC |
|---|---|
| Balancing Authority | Puget Sound Energy |
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.