Nameplate capacity
617 MW
Rank in Illinois
#22
of 580 plants
In service since
1977
November 1977
Details
- Primary fuel
- Coal
- Technology
- Conventional Steam Coal
- Operator
- Illinois Power Generating Co
- County
- Jasper County
- Generating units
- 1
- Share of state capacity
- 1.17%
- Rank among coal plants in Illinois
- #5 of 8
- EIA plant code
- 6017
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Steam Coal | 617 MW | 595 MW | 1977 | 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
| Goose Creek Energy Center | Natural gas | 684 MW |
| Nelson Energy Center | Natural gas | 628 MW |
| Cordova Energy | Natural gas | 611 MW |
| Zion Energy Center | Natural gas | 597 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 617 MW solar plant and a 617 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