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Madison

Natural gas power plant · Butler County, Ohio

Nameplate capacity
692 MW
Rank in Ohio
#19
of 219 plants
In service since
2000
June 2000

Details

Primary fuel
Natural gas
Technology
Natural Gas Fired Combustion Turbine
Operator
Duke Energy Indiana, LLC
County
Butler County
Generating units
8
Share of state capacity
1.94%
Rank among natural gas plants in Ohio
#13 of 51
EIA plant code
55110

Generating units

Individual generating units at Madison
UnitTechnologyNameplateSummerOnlineStatus
CT1Natural Gas Fired Combustion Turbine87 MW71 MW2000Operating
CT2Natural Gas Fired Combustion Turbine87 MW71 MW2000Operating
CT3Natural Gas Fired Combustion Turbine87 MW69 MW2000Operating
CT4Natural Gas Fired Combustion Turbine87 MW70 MW2000Operating
CT5Natural Gas Fired Combustion Turbine87 MW70 MW2000Operating
CT6Natural Gas Fired Combustion Turbine87 MW72 MW2000Operating
CT7Natural Gas Fired Combustion Turbine87 MW73 MW2000Operating
CT8Natural Gas Fired Combustion Turbine87 MW70 MW2000Operating

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 Ohio

Fremont Energy CenterNatural gas740 MW
Washington Energy FacilityNatural gas715 MW
Tait Electric Generating StationNatural gas681 MW
Dresden Energy FacilityNatural gas678 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 692 MW solar plant and a 692 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 Ohio power plants · What Ohio actually generates