66th largest plant in Maine · 6085th nationally
Ellsworth Hydro Station is a hydroelectric power plant in Maine with a nameplate capacity of 8.9 MW. It generates roughly 35.0k MWh per year — enough to power about 3,337 average U.S. homes.
Its capacity factor of 45% puts it in the middle range — running steadily but not full-time.
| Plant Name | Ellsworth Hydro Station |
|---|---|
| Operator | Brookfield Black Bear Hydro, Llc |
| City | Ellsworth |
| County | Hancock County |
| State | Maine |
| ZIP | 04605 |
| Coordinates | 44.54420, -68.43060 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| EL01 | Conventional Hydroelectric | Water | 2.5 MW | Operating | 1924 |
| EL04 | Conventional Hydroelectric | Water | 2.4 MW | Operating | 1924 |
| EL02 | Conventional Hydroelectric | Water | 2.0 MW | Operating | 1938 |
| EL03 | Conventional Hydroelectric | Water | 2.0 MW | Operating | 1938 |
| NERC Region | NPCC |
|---|---|
| Balancing Authority | Iso New England Inc. |
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.