Nameplate capacity
4.8 MW
Rank in Vermont
#44
of 117 plants
In service since
1941
January 1941
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Ampersand Gilman Hydro LP
- County
- Essex County
- Generating units
- 4
- Share of state capacity
- 0.53%
- Rank among hydro plants in Vermont
- #17 of 45
- EIA plant code
- 10608
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | 2.2 MW | 2.1 MW | 1986 | Operating |
| GEN2 | Conventional Hydroelectric | 1.0 MW | 0.9 MW | 1966 | Operating |
| GEN3 | Conventional Hydroelectric | 0.8 MW | 0.7 MW | 1941 | Operating |
| GEN4 | Conventional Hydroelectric | 0.8 MW | 0.6 MW | 1941 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Vermont
| Springfield BESS | Battery storage | 5.0 MW |
| Saint Albans Solar | Solar | 4.9 MW |
| GMP Solar - Williston | Solar | 4.7 MW |
| Newport | Hydro | 4.0 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 4.8 MW solar plant and a 4.8 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Vermont power plants · What Vermont actually generates