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Sumpter

Natural gas power plant · Wayne County, Michigan

Nameplate capacity
340 MW
Rank in Michigan
#21
of 289 plants
In service since
2002
July 2002

Details

Primary fuel
Natural gas
Technology
Natural Gas Fired Combustion Turbine
Operator
Wolverine Power Supply Coop
County
Wayne County
Generating units
4
Share of state capacity
0.95%
Rank among natural gas plants in Michigan
#13 of 61
EIA plant code
7972

Generating units

Individual generating units at Sumpter
UnitTechnologyNameplateSummerOnlineStatus
1Natural Gas Fired Combustion Turbine85 MW73 MW2002Operating
2Natural Gas Fired Combustion Turbine85 MW76 MW2002Operating
3Natural Gas Fired Combustion Turbine85 MW75 MW2002Operating
4Natural Gas Fired Combustion Turbine85 MW75 MW2002Operating

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 Michigan

Isabella Wind ParkWind384 MW
DeanNatural gas358 MW
Delta Energy ParkNatural gas263 MW
Muskegon SolarSolar250 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 340 MW solar plant and a 340 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 Michigan power plants · What Michigan actually generates