Natural gas power plants in Illinois
62 operating natural gas power plants in Illinois with 17,552 MW of natural gas capacity, largest first. From EIA-860M, August 2026.
Plants
62
Natural gas capacity
17,552 MW
Net generation, 2025
31.3 TWh
61 of 62 plants reported
Largest natural gas power plants in Illinois
| # | Plant | Natural gas MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | CPV Three Rivers Energy CenterGrundy County | 1,300 | 6,456 | 56.7% |
| 2 | Jackson Generation, LLCWill County | 1,289 | 7,551 | 66.9% |
| 3 | Kendall County Generation FacilityKendall County | 1,256 | 5,535 | 50.3% |
| 4 | AuroraDuPage County | 1,086 | 499 | 5.2% |
| 5 | University Park NorthWill County | 726 | 278 | 4.4% |
| 6 | Holland Energy FacilityShelby County | 702 | 1,619 | 26.3% |
| 7 | Lincoln Generating FacilityWill County | 692 | 8.2 | 0.1% |
| 8 | Lee Energy FacilityLee County | 692 | 65.2 | 1.1% |
| 9 | Goose Creek Energy CenterPiatt County | 684 | −1.4 | – |
| 10 | Nelson Energy CenterLee County | 628 | 3,027 | 55.1% |
| 11 | Cordova EnergyRock Island County | 611 | 1,095 | 20.5% |
| 12 | Zion Energy CenterLake County | 597 | 468 | 9.0% |
| 13 | VeniceMadison County | 586 | 18.3 | 0.4% |
| 14 | Elwood Energy LLCWill County | 576 | 192 | – |
| 15 | MRP Elgin LLCCook County | 540 | 198 | 4.2% |
| 16 | Shelby Energy CountyShelby County | 483 | 184 | 4.3% |
| 17 | Raccoon Creek Energy CenterClay County | 456 | −2.5 | – |
| 18 | PinckneyvillePerry County | 380 | 66.6 | 2.0% |
| 19 | Invenergy Nelson Expansion LLCLee County | 380 | 858 | 25.8% |
| 20 | MRP Rocky Road LLCKane County | 374 | 33.8 | 0.9% |
| 21 | Crete Energy Venture LLCWill County | 356 | 59.8 | 1.9% |
| 22 | University Park SouthWill County | 353 | 151 | 4.9% |
| 23 | NRG Rockford IWinnebago County | 316 | 107 | 3.8% |
| 24 | Calumet Energy Team LLCCook County | 313 | 7.6 | 0.3% |
| 25 | Gibson City Energy Center LLCFord County | 270 | 77.3 | 3.3% |
| 26 | KinmundyMarion County | 270 | 3.1 | 0.1% |
| 27 | Morris Cogeneration LLCGrundy County | 219 | 603 | 31.4% |
| 28 | TiltonVermilion County | 188 | 53.8 | 3.3% |
| 29 | AlseyScott County | 173 | 34.7 | 2.3% |
| 30 | NRG Rockford II Energy CenterWinnebago County | 168 | 56.1 | 3.8% |
| 31 | MarionWilliamson County · Natural gas and coal | 150 | 767 | 35.2% |
| 32 | InterstateSangamon County | 139 | 57.5 | 4.7% |
| 33 | University of Illinois Abbott Power PltChampaign County | 80 | 213 | 30.2% |
| 34 | MolineRock Island County | 72 | 20.8 | 3.1% |
| 35 | Primient Decatur Plant CogenMacon County | 65 | 150 | 26.4% |
| 36 | University of Illinois Cogen FacilityCook County | 53 | 114 | 21.7% |
| 37 | Ingredion IncorporatedCook County | 45 | 186 | 39.0% |
| 38 | Princeton (IL)Bureau County | 38 | 0.8 | 0.2% |
| 39 | ExxonMobil Oil Joliet RefineryWill County | 37 | 185 | 48.7% |
| 40 | Geneva Generation FacilityKane County | 30 | 12.7 | 4.9% |
| 41 | GeneseoHenry County | 25 | 7.9 | 2.7% |
| 42 | WaterlooMonroe County · Natural gas and oil | 22 | 0.8 | 0.3% |
| 43 | WinnetkaCook County · Natural gas and oil | 19 | 2.9 | 1.0% |
| 44 | Archer Daniels Midland PeoriaPeoria County | 18 | 72.9 | 46.2% |
| 45 | North Ninth StreetOgle County | 15 | 1.6 | 1.0% |
| 46 | North Chicago Energy CenterLake County | 12 | 39.0 | 35.9% |
| 47 | Loyola University Health PlantCook County | 11 | 19.5 | 20.9% |
| 48 | Hoffer PlasticsKane County | 7.2 | 2.7 | 4.3% |
| 49 | Adkins Energy LLCStephenson County | 6.8 | 38.7 | 65.1% |
| 50 | Argonne National Laboratory CHPDuPage County | 6.3 | 40.3 | 73.0% |
| 51 | Charter Dura-BarMcHenry County | 6.0 | 8.0 | 15.2% |
| 52 | Mondelez Global LLCWinnebago County | 4.7 | – | – |
| 53 | Northwest Community HospitalCook County | 4.4 | 0.6 | 1.5% |
| 54 | CSL Behring LLCKankakee County | 4.2 | 29.8 | 81.0% |
| 55 | NalcoDuPage County | 4.0 | 20.9 | 50.6% |
| 56 | Triton East and West CogenCook County | 3.6 | 0.4 | 1.1% |
| 57 | Chicago West Side Energy CenterCook County | 3.5 | 17.4 | 56.7% |
| 58 | Lake Forest Hospital Central Energy PlanLake County | 3.2 | 0.2 | 0.6% |
| 59 | Milam Gas RecoverySt Clair County | 2.4 | 19.4 | 92.1% |
| 60 | Museum of Science and IndustryCook County | 1.7 | 0.0 | 0.3% |
| 61 | MTHS Co-Gen BuildingsCook County | 1.2 | 0.0 | – |
| 62 | Thornridge High SchoolCook County | 1.0 | 0.0 | – |
Projects where natural gas is the largest fuel or at least a fifth of nameplate capacity. MW is natural gas nameplate only; net generation covers the whole project. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources
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