Jackson Generation, LLC
Natural gas power plant · Will County, Illinois
Nameplate capacity
1,289 MW
Rank in Illinois
#10
of 580 plants
In service since
2022
May 2022
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Jackson Generation, LLC
- County
- Will County
- Generating units
- 2
- Share of state capacity
- 2.45%
- Rank among natural gas plants in Illinois
- #2 of 72
- EIA plant code
- 62926
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 01 | Natural Gas Fired Combined Cycle | 644 MW | 587 MW | 2022 | Operating |
| 02 | Natural Gas Fired Combined Cycle | 644 MW | 599 MW | 2022 | 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
| Kincaid Generation LLC | Coal | 1,319 MW |
| CPV Three Rivers Energy Center | Natural gas | 1,300 MW |
| Baldwin Energy Complex | Coal | 1,260 MW |
| Kendall County Generation Facility | Natural gas | 1,256 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 1,289 MW solar plant and a 1,289 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