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Cooks Mill PV I

Solar power plant · Coles County, Illinois

Nameplate capacity
99 MW
Rank in Illinois
#107
of 580 plants
In service since
2026
April 2026

Details

Primary fuel
Solar
Technology
Solar Photovoltaic
Operator
Cooks Mill PV I, LLC
County
Coles County
Generating units
1
Share of state capacity
0.19%
Rank among solar plants in Illinois
#17 of 383
EIA plant code
67991

Generating units

Individual generating units at Cooks Mill PV I
UnitTechnologyNameplateSummerOnlineStatus
CKMLSolar Photovoltaic99 MW99 MW2026Operating

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

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 99 MW solar plant and a 99 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