27th largest plant in New Hampshire · 5596th nationally
Pontook Hydro Facility is a hydroelectric power plant in New Hampshire with a nameplate capacity of 10.5 MW. It generates roughly 57.8k MWh per year — enough to power about 5,505 average U.S. homes.
Its capacity factor of 63% puts it in the middle range — running steadily but not full-time.
| Plant Name | Pontook Hydro Facility |
|---|---|
| Operator | Pontook Operating Lp |
| City | Dummer |
| County | Coos County |
| State | New Hampshire |
| ZIP | 03588 |
| Coordinates | 44.63284, -71.24742 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | Water | 3.5 MW | Operating | 1986 |
| GEN2 | Conventional Hydroelectric | Water | 3.5 MW | Operating | 1986 |
| GEN3 | Conventional Hydroelectric | Water | 3.5 MW | Operating | 1986 |
| 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.