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Harris Hydro

Hydro power plant · Somerset County, Maine

Nameplate capacity
76 MW
Rank in Maine
#16
of 274 plants
In service since
1954
January 1954

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
Brookfield White Pine Hydro LLC
County
Somerset County
Generating units
4
Share of state capacity
1.24%
Rank among hydro plants in Maine
#2 of 48
EIA plant code
1492

Generating units

Individual generating units at Harris Hydro
UnitTechnologyNameplateSummerOnlineStatus
HA2Conventional Hydroelectric30 MW35 MW1954Operating
HA3Conventional Hydroelectric30 MW34 MW1955Operating
HA1Conventional Hydroelectric15 MW17 MW1954Operating
HA4Conventional Hydroelectric1.4 MW1.4 MW1955Operating

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

Rumford CogenerationOther103 MW
Farmington SolarSolar77 MW
Weaver WindWind73 MW
Wyman HydroHydro72 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 76 MW solar plant and a 76 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