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Otis Hydro

Hydro power plant · Franklin County, Maine

Nameplate capacity
10 MW
Rank in Maine
#62
of 274 plants
In service since
1985
January 1985

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
Eagle Creek Renewable Energy, LLC
County
Franklin County
Generating units
2
Share of state capacity
0.17%
Rank among hydro plants in Maine
#17 of 48
EIA plant code
50080

Generating units

Individual generating units at Otis Hydro
UnitTechnologyNameplateSummerOnlineStatus
GEN1Conventional Hydroelectric5.1 MW5.1 MW1985Operating
GEN2Conventional Hydroelectric5.1 MW5.1 MW1985Operating

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

Weston HydroHydro12 MW
HiramHydro11 MW
Georges River EnergyOther10 MW
Pittsfield Solar LLCSolar9.9 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 10 MW solar plant and a 10 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