9th largest plant in Vermont · 4081st nationally
Harriman is a hydroelectric power plant in Vermont with a nameplate capacity of 33.6 MW. It generates roughly 125.9k MWh per year — enough to power about 11,986 average U.S. homes.
Its capacity factor of 43% puts it in the middle range — running steadily but not full-time.
| Plant Name | Harriman |
|---|---|
| Operator | Great River Hydro, Llc |
| City | Whitingham |
| County | Windham County |
| State | Vermont |
| ZIP | 05361 |
| Coordinates | 42.79360, -72.91440 |
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 | 11.2 MW | Operating | 1924 |
| GEN2 | Conventional Hydroelectric | Water | 11.2 MW | Operating | 1924 |
| GEN3 | Conventional Hydroelectric | Water | 11.2 MW | Operating | 1924 |
| 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.