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Kendall County Generation Facility

Natural gas power plant · Kendall County, Illinois

Nameplate capacity
1,256 MW
Rank in Illinois
#12
of 580 plants
In service since
2002
March 2002

Details

Primary fuel
Natural gas
Technology
Natural Gas Fired Combined Cycle
Operator
Dynegy Kendall Energy LLC
County
Kendall County
Generating units
8
Share of state capacity
2.38%
Rank among natural gas plants in Illinois
#3 of 72
EIA plant code
55131

Generating units

Individual generating units at Kendall County Generation Facility
UnitTechnologyNameplateSummerOnlineStatus
CTG1Natural Gas Fired Combined Cycle180 MW160 MW2002Operating
CTG2Natural Gas Fired Combined Cycle180 MW160 MW2002Operating
CTG3Natural Gas Fired Combined Cycle180 MW160 MW2002Operating
CTG4Natural Gas Fired Combined Cycle180 MW160 MW2002Operating
STG1Natural Gas Fired Combined Cycle134 MW125 MW2002Operating
STG2Natural Gas Fired Combined Cycle134 MW125 MW2002Operating
STG3Natural Gas Fired Combined Cycle134 MW125 MW2002Operating
STG4Natural Gas Fired Combined Cycle134 MW125 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 Illinois

Jackson Generation, LLCNatural gas1,289 MW
Baldwin Energy ComplexCoal1,260 MW
Clinton Power StationNuclear1,138 MW
AuroraNatural gas1,086 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 1,256 MW solar plant and a 1,256 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 Illinois power plants · What Illinois actually generates