Power plants in Macon County, Illinois
6 operating power plants in Macon County, Illinois, with 417 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Plants
6
Nameplate capacity
417 MW
Net generation, 2025
1.05 TWh
5 of 6 plants reported
Largest power plants in Macon County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Archer Daniels Midland DecaturCoal | 335 | 901 | 30.7% |
| 2 | Primient Decatur Plant CogenNatural gas | 65 | 150 | 26.4% |
| 3 | Oreana RenewablesSolar | 5.0 | 0.0 | – |
| 4 | Oreana SolarSolar | 5.0 | 0.0 | – |
| 5 | IL - Nexamp ArgentaSolar | 5.0 | – | – |
| 6 | Macon County IL S1Solar | 2.0 | 0.3 | – |
MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources
More power plant lists for Illinois
Largest power plants in Illinois50 plants · 38,995 MWSolar farms in Illinois453 plants · 5,222 MWWind farms in Illinois56 plants · 8,654 MWBattery storage projects in Illinois7 projects · 82 MWNatural gas power plants in Illinois62 plants · 17,552 MWCoal power plants in Illinois9 plants · 7,415 MWNuclear power plants in Illinois6 plants · 12,415 MWHydroelectric power plants in Illinois4 plants · 15 MW