45th largest plant in Vermont · 7981st nationally
Gilman Mill is a hydroelectric power plant in Vermont with a nameplate capacity of 4.8 MW. It generates roughly 28.1k MWh per year — enough to power about 2,678 average U.S. homes.
Its capacity factor of 67% puts it in the middle range — running steadily but not full-time.
| Plant Name | Gilman Mill |
|---|---|
| Operator | Ampersand Gilman Hydro Lp |
| City | Gilman |
| County | Essex County |
| State | Vermont |
| ZIP | 05904 |
| Coordinates | 44.41220, -71.72280 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| GEN5 | Wood/Wood Waste Biomass | Wood/Wood Waste | 4.0 MW | Retired | 1982 |
| GEN1 | Conventional Hydroelectric | Water | 2.2 MW | Operating | 1986 |
| GEN2 | Conventional Hydroelectric | Water | 1.0 MW | Operating | 1966 |
| GEN3 | Conventional Hydroelectric | Water | 0.8 MW | Operating | 1941 |
| GEN4 | Conventional Hydroelectric | Water | 0.8 MW | Operating | 1941 |
| 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.