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Indian Orchard

Hydro power plant · Hampden County, Massachusetts

Nameplate capacity
3.7 MW
Rank in Massachusetts
#258
of 691 plants
In service since
1928
January 1928

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
Central Rivers Power MA, LLC
County
Hampden County
Generating units
2
Share of state capacity
0.03%
Rank among hydro plants in Massachusetts
#16 of 32
EIA plant code
6379

Generating units

Individual generating units at Indian Orchard
UnitTechnologyNameplateSummerOnlineStatus
IO4Conventional Hydroelectric2.2 MW2.2 MW1928Operating
IO3Conventional Hydroelectric1.5 MW1.5 MW1928Operating

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 Massachusetts

RandolphSolar3.8 MW
Dresser Hill CSGSolar3.7 MW
Kearsarge Ludlow LLCSolar3.7 MW
Milk Street Solar, LLCSolar3.7 MW

About this data

From EIA’s inventory of operable generators, August 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 3.7 MW solar plant and a 3.7 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 Massachusetts power plants · What Massachusetts actually generates