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Waukegan

Other power plant · Lake County, Illinois

Nameplate capacity
112 MW
Rank in Illinois
#98
of 580 plants
In service since
1968
June 1968

Details

Primary fuel
Other
Technology
Petroleum Liquids
Operator
Midwest Generations EME LLC
County
Lake County
Generating units
4
Share of state capacity
0.21%
Rank among other plants in Illinois
#2 of 45
EIA plant code
883

Generating units

Individual generating units at Waukegan
UnitTechnologyNameplateSummerOnlineStatus
311Petroleum Liquids28 MW25 MW1968Standby/Backup: available for service but not normally used
312Petroleum Liquids28 MW29 MW1968Standby/Backup: available for service but not normally used
321Petroleum Liquids28 MW28 MW1968Standby/Backup: available for service but not normally used
322Petroleum Liquids28 MW27 MW1968Standby/Backup: available for service but not normally used

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 112 MW solar plant and a 112 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