Upper Barker
Hydro power plant · Androscoggin County, Maine
Nameplate capacity
1.0 MW
Rank in Maine
#273
of 274 plants
In service since
1987
May 1987
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- KEI (Maine) Power Management (III) LLC
- County
- Androscoggin County
- Generating units
- 1
- Share of state capacity
- 0.02%
- Rank among hydro plants in Maine
- #48 of 48
- EIA plant code
- 52171
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | 1.0 MW | 1.0 MW | 1987 | 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
| Turner CSG LLC | Solar | 1.0 MW |
| USS Weld Solar LLC | Solar | 1.0 MW |
| Water Line Solar, LLC | Solar | 1.0 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 1.0 MW solar plant and a 1.0 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