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Harriman

Hydro power plant · Windham County, Vermont

Nameplate capacity
34 MW
Rank in Vermont
#9
of 117 plants
In service since
2024
May 2024

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
Great River Hydro, LLC
County
Windham County
Generating units
3
Share of state capacity
3.74%
Rank among hydro plants in Vermont
#4 of 45
EIA plant code
3746

Generating units

Individual generating units at Harriman
UnitTechnologyNameplateSummerOnlineStatus
GEN1Conventional Hydroelectric11 MW14 MW2024Operating
GEN2Conventional Hydroelectric11 MW14 MW2024Operating
GEN3Conventional Hydroelectric11 MW14 MW2024Operating

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

Vernon DamHydro36 MW
WilderHydro36 MW
Deerfield Wind LLCWind30 MW
Burlington GTOther26 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 34 MW solar plant and a 34 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