49th largest plant in Maine · 4891st nationally
Gulf Island is a hydroelectric power plant in Maine with a nameplate capacity of 19.2 MW. It generates roughly 169.3k MWh per year — enough to power about 16,122 average U.S. homes.
Its capacity factor of 101% means it runs nearly around-the-clock as baseload generation.
| Plant Name | Gulf Island |
|---|---|
| Operator | Brookfield White Pine Hydro Llc |
| City | Lewiston |
| County | Androscoggin County |
| State | Maine |
| ZIP | 04240 |
| Coordinates | 44.15285, -70.20938 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| GI1 | Conventional Hydroelectric | Water | 6.4 MW | Operating | 1926 |
| GI2 | Conventional Hydroelectric | Water | 6.4 MW | Operating | 1926 |
| GI3 | Conventional Hydroelectric | Water | 6.4 MW | Operating | 1926 |
| 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.