PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/976
EIA plant 976
Marion · Williamson · IL
Marion
Operated by Southern Illinois Power Coop
Published location
Where is Marion?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
37.619747, -88.953114
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Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 74,370 MWh |
| 2 | 61,793 MWh |
| 3 | 58,821 MWh |
| 4 | 34,645 MWh |
| 5 | 65,273 MWh |
| 6 | 53,949 MWh |
| 7 | 84,332 MWh |
| 8 | 80,000 MWh |
| 9 | 73,468 MWh |
| 10 | 34,026 MWh |
| 11 | 53,538 MWh |
| 12 | 72,031 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 5 | Natural Gas Fired Combustion Turbine | NG | 75 | SB |
| 6 | Natural Gas Fired Combustion Turbine | NG | 75 | SB |
| 1 | Conventional Steam Coal | BIT | 33 | OP |
| 2 | Conventional Steam Coal | BIT | 33 | OP |
| 3 | Conventional Steam Coal | BIT | 33 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
976
Sector
Electric Utility
Water source
Lake Egypt
Data edition
2024-final