Largest power plants in Illinois
The 50 largest power plants in Illinois by nameplate capacity, from EIA-860M for August 2026, with 2025 net generation from EIA-923.
Plants
50
Nameplate capacity
38,995 MW
Net generation, 2025
164 TWh
49 of 50 plants reported
Top 50 by nameplate capacity
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Braidwood Generation StationWill County · Nuclear | 2,450 | 20,165 | 94.0% |
| 2 | Byron Generating StationOgle County · Nuclear | 2,450 | 19,914 | 92.8% |
| 3 | LaSalle Generating StationLaSalle County · Nuclear | 2,340 | 18,874 | 92.1% |
| 4 | Dresden Generating StationGrundy County · Nuclear | 2,019 | 15,205 | 86.0% |
| 5 | Quad Cities Generating StationRock Island County · Nuclear | 2,019 | 15,174 | 85.8% |
| 6 | PowertonTazewell County · Coal | 1,786 | 3,360* | 23.5% |
| 7 | Prairie State Generating StationSt Clair County · Coal | 1,766 | 12,193 | 78.8% |
| 8 | Kincaid Generation LLCChristian County · Coal | 1,319 | 2,690 | 23.3% |
| 9 | CPV Three Rivers Energy CenterGrundy County · Natural gas | 1,300 | 6,456 | 56.7% |
| 10 | Jackson Generation, LLCWill County · Natural gas | 1,289 | 7,551 | 66.9% |
| 11 | Baldwin Energy ComplexRandolph County · Coal | 1,260 | 6,510 | 59.0% |
| 12 | Kendall County Generation FacilityKendall County · Natural gas | 1,256 | 5,535 | 50.3% |
| 13 | Clinton Power StationDeWitt County · Nuclear | 1,138 | 8,338 | 83.6% |
| 14 | AuroraDuPage County · Natural gas | 1,086 | 499 | 5.2% |
| 15 | University Park NorthWill County · Natural gas | 726 | 278 | 4.4% |
| 16 | Holland Energy FacilityShelby County · Natural gas | 702 | 1,619 | 26.3% |
| 17 | Lincoln Generating FacilityWill County · Natural gas | 692 | 8.2 | 0.1% |
| 18 | Lee Energy FacilityLee County · Natural gas | 692 | 65.2 | 1.1% |
| 19 | Goose Creek Energy CenterPiatt County · Natural gas | 684 | −1.4 | – |
| 20 | Nelson Energy CenterLee County · Natural gas | 628 | 3,027 | 55.1% |
| 21 | NewtonJasper County · Coal | 617 | 3,713 | 68.6% |
| 22 | Cordova EnergyRock Island County · Natural gas | 611 | 1,095 | 20.5% |
| 23 | Zion Energy CenterLake County · Natural gas | 597 | 468 | 9.0% |
| 24 | Double Back DiamondSangamon County · Solar | 593 | 915 | 17.6% |
| 25 | VeniceMadison County · Natural gas | 586 | 18.3 | 0.4% |
| 26 | Elwood Energy LLCWill County · Natural gas | 576 | 192 | – |
| 27 | MRP Elgin LLCCook County · Natural gas | 540 | 198 | 4.2% |
| 28 | Shelby Energy CountyShelby County · Natural gas | 483 | 184 | 4.3% |
| 29 | Raccoon Creek Energy CenterClay County · Natural gas | 456 | −2.5 | – |
| 30 | PinckneyvillePerry County · Natural gas | 380 | 66.6 | 2.0% |
| 31 | Invenergy Nelson Expansion LLCLee County · Natural gas | 380 | 858 | 25.8% |
| 32 | MRP Rocky Road LLCKane County · Natural gas | 374 | 33.8 | 0.9% |
| 33 | Crete Energy Venture LLCWill County · Natural gas | 356 | 59.8 | 1.9% |
| 34 | University Park SouthWill County · Natural gas | 353 | 151 | 4.9% |
| 35 | Archer Daniels Midland DecaturMacon County · Coal | 335 | 901 | 30.7% |
| 36 | NRG Rockford IWinnebago County · Natural gas | 316 | 107 | 3.8% |
| 37 | Calumet Energy Team LLCCook County · Natural gas | 313 | 7.6 | 0.3% |
| 38 | Lincoln Land WindSangamon County · Wind | 302 | 1,005 | 38.0% |
| 39 | Streator Cayuga Ridge SouthLivingston County · Wind | 300 | 676 | 25.7% |
| 40 | Prosperity WindPiatt County · Wind | 300 | 678 | – |
| 41 | Archtop SolarFord County · Solar | 287 | – | – |
| 42 | Radfords Run Wind FarmDewitt County · Wind | 278 | 1,147 | 47.1% |
| 43 | Emily Solar, LLCCumberland County · Solar | 274 | 40.8* | – |
| 44 | Gibson City Energy Center LLCFord County · Natural gas | 270 | 77.3 | 3.3% |
| 45 | KinmundyMarion County · Natural gas | 270 | 3.1 | 0.1% |
| 46 | Sapphire Sky Wind Energy LLCDeWitt County · Wind | 260 | 926 | 40.7% |
| 47 | Blooming Grove Wind Energy CenterLivingston County · Wind | 250 | 866 | 39.5% |
| 48 | Maple FlatsClay County · Solar | 250 | 493 | 22.5% |
| 49 | MarionWilliamson County · Natural gas and coal | 249 | 767 | 35.2% |
| 50 | Big Sky Wind LLCBureau County · Wind | 239 | 817 | 38.9% |
* Fewer than 12 months of 2025 reported, so the total is partial.
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
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