Nameplate capacity
18 MW
Rank in Illinois
#151
of 580 plants
In service since
1970
November 1970
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- City of Springfield - (IL)
- County
- Sangamon County
- Generating units
- 1
- Share of state capacity
- 0.03%
- Rank among other plants in Illinois
- #7 of 45
- EIA plant code
- 965
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Petroleum Liquids | 18 MW | 11 MW | 1970 | 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
| McHenry Battery Storage | Battery storage | 20 MW |
| Archer Daniels Midland Peoria | Natural gas | 18 MW |
| North Ninth Street | Natural gas | 17 MW |
| Breese | Other | 17 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 18 MW solar plant and a 18 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