Nameplate capacity
33 MW
Rank in Illinois
#140
of 580 plants
In service since
1948
January 1948
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Steam Turbine
- Operator
- Village of Winnetka - (IL)
- County
- Cook County
- Generating units
- 5
- Share of state capacity
- 0.06%
- Rank among natural gas plants in Illinois
- #43 of 72
- EIA plant code
- 972
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 7 | Natural Gas Steam Turbine | 13 MW | 13 MW | 1960 | Operating |
| 4 | Natural Gas Steam Turbine | 9.4 MW | 9.4 MW | 1953 | Out of service and NOT expected to return to service in next calendar year |
| 6 | Natural Gas Steam Turbine | 6.3 MW | 6.3 MW | 1948 | Operating |
| 8 | Petroleum Liquids | 2.6 MW | 2.6 MW | 1979 | Operating |
| 9 | Petroleum Liquids | 2.6 MW | 2.6 MW | 1979 | Operating |
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
| Richland Township Solar, LLC | Solar | 35 MW |
| Geneseo | Natural gas | 34 MW |
| Prairie Creek Solar | Solar | 30 MW |
| Geneva Generation Facility | Natural gas | 30 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 33 MW solar plant and a 33 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