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IOS - MEW Phase 1

Solar power plant · Somerset County, Maine

Nameplate capacity
4.1 MW
Rank in Maine
#167
of 274 plants
In service since
2017
January 2017

Details

Primary fuel
Solar
Technology
Solar Photovoltaic
Operator
Madison Energy Holdings LLC
County
Somerset County
Generating units
1
Share of state capacity
0.07%
Rank among solar plants in Maine
#92 of 175
EIA plant code
61460

Generating units

Individual generating units at IOS - MEW Phase 1
UnitTechnologyNameplateSummerOnlineStatus
MEW1Solar Photovoltaic4.1 MW4.1 MW2017Operating

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

Benton Falls AssociatesHydro4.2 MW
CaribouSolar4.1 MW
LoringSolar4.1 MW
Winslow PV, LLCSolar4.1 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 4.1 MW solar plant and a 4.1 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