Lower Middlebury
Hydro power plant · Addison County, Vermont
Nameplate capacity
2.4 MW
Rank in Vermont
#57
of 117 plants
In service since
2017
August 2017
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Green Mountain Power Corp
- County
- Addison County
- Generating units
- 3
- Share of state capacity
- 0.27%
- Rank among hydro plants in Vermont
- #28 of 45
- EIA plant code
- 3716
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | 0.8 MW | 0.6 MW | 2017 | Operating |
| 2 | Conventional Hydroelectric | 0.8 MW | 0.6 MW | 2017 | Operating |
| 3 | Conventional Hydroelectric | 0.8 MW | 0.8 MW | 2017 | 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
| Weybridge | Hydro | 3.0 MW |
| Ball Mountain Hydro | Hydro | 2.4 MW |
| Vergennes 9 | Hydro | 2.4 MW |
| Cold River Road Solar | Solar | 2.3 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 2.4 MW solar plant and a 2.4 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