Lockwood Hydroelectric Facility
Hydro power plant · Kennebec County, Maine
Nameplate capacity
7.2 MW
Rank in Maine
#74
of 274 plants
In service since
1985
October 1985
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Merimil Ltd Partnership
- County
- Kennebec County
- Generating units
- 7
- Share of state capacity
- 0.12%
- Rank among hydro plants in Maine
- #23 of 48
- EIA plant code
- 10066
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN7 | Conventional Hydroelectric | 2.4 MW | 2.2 MW | 1988 | Operating |
| GEN1 | Conventional Hydroelectric | 0.8 MW | 0.7 MW | 1985 | Operating |
| GEN2 | Conventional Hydroelectric | 0.8 MW | 0.7 MW | 1985 | Operating |
| GEN3 | Conventional Hydroelectric | 0.8 MW | 0.7 MW | 1985 | Operating |
| GEN4 | Conventional Hydroelectric | 0.8 MW | 0.7 MW | 1985 | Operating |
| GEN5 | Conventional Hydroelectric | 0.8 MW | 0.7 MW | 1985 | Operating |
| GEN6 | Conventional Hydroelectric | 0.8 MW | 0.7 MW | 1985 | 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 Maine
| West Buxton | Hydro | 7.7 MW |
| Augusta PV - BD Solar Augusta LLC | Solar | 7.2 MW |
| BD Solar Ellsworth LLC | Solar | 7.0 MW |
| BD Solar Hancock LLC | Solar | 7.0 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 7.2 MW solar plant and a 7.2 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 Maine power plants · What Maine actually generates