Directory of Power Plants in Illinois
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Moline | MidAmerican Energy Co | Moline, IL | Midcontinent Independent System Operator, Inc. (MISO) | 20.8 GWh | Dec 1941 | Dec 2025 | Water : 97.0% Natural Gas : 3.0% |
| McLeansboro | City of McLeansboro - (IL) | McLeansboro, IL | Midcontinent Independent System Operator, Inc. (MISO) | 42.0 MWh | Nov 1950 | Dec 2025 | Distillate Fuel Oil |
| Marion | Southern Illinois Power Coop | Marion, IL | Midcontinent Independent System Operator, Inc. (MISO) | 816.6 GWh | May 1963 | Aug 2026 | Bituminous Coal : 85.8% Natural Gas : 13.7% Distillate Fuel Oil : 0.5% |
| Milam Gas Recovery | WM Illinois Renewable Energy LLC | East St. Lois, IL | Midcontinent Independent System Operator, Inc. (MISO) | 19.4 GWh | Mar 1991 | Dec 2025 | Natural Gas |
| MPEA Energy Center | Metropolitan Pier and Exposition Auth | Chicago, IL | PJM Interconnection, LLC (PJM) | 4.0 MWh | Dec 1996 | Dec 2025 | Distillate Fuel Oil |
| Morris Cogeneration LLC | Morris Cogeneration LLC | Morris, IL | PJM Interconnection, LLC (PJM) | 613.1 GWh | Oct 1998 | Aug 2026 | Natural Gas |
| MRP Rocky Road LLC | Lincoln Operating Services, LLC | East Dundee, IL | PJM Interconnection, LLC (PJM) | 33.8 GWh | May 1999 | Dec 2025 | Natural Gas |
| MPH Elwood | MPH Elwood, LLC | Elwood, IL | PJM Interconnection, LLC (PJM) | 2.4 GWh | Jun 1999 | May 2026 | Natural Gas |
| Marshall (IL) | City of Marshall - (IL) | Marshall, IL | Midcontinent Independent System Operator, Inc. (MISO) | 167.0 MWh | Mar 2002 | Dec 2025 | Distillate Fuel Oil |
| MRP Elgin LLC | Lincoln Operating Services, LLC | Elgin, IL | PJM Interconnection, LLC (PJM) | 197.9 GWh | Aug 2002 | Dec 2025 | Natural Gas |
| Museum of Science and Industry | Museum of Science and Industry | Chicago, IL | PJM Interconnection, LLC (PJM) | 41.2 MWh | Mar 2003 | Dec 2025 | Natural Gas |
| Mendota Hills, LLC | Leeward Asset Management, LLC | Paw Paw, IL | PJM Interconnection, LLC (PJM) | 255.9 GWh | Oct 2003 | Dec 2025 | Wind |
| Minonk Wind Farm | Algonquin Power Co | Minonk, IL | PJM Interconnection, LLC (PJM) | 622.9 GWh | Oct 2012 | Dec 2025 | Wind |
| Mooseheart School Solar | Forefront Power, LLC | Mooseheart, IL | PJM Interconnection, LLC (PJM) | 3.6 GWh | Oct 2020 | Dec 2025 | Solar |
| Morgan Solar 2, LLC CSG | Morgan Solar 2, LLC | Murrayville, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.1 GWh | Oct 2020 | Dec 2025 | Solar |
| Marengo Solar | DG Illinois Solar, LLC | Marengo, IL | PJM Interconnection, LLC (PJM) | 3.9 GWh | Nov 2020 | Dec 2025 | Solar |
| Mt. Morris Solar CSG | DG Illinois Solar, LLC | Polo, IL | PJM Interconnection, LLC (PJM) | 2.2 GWh | Nov 2020 | Sep 2025 | Solar |
| McDonough Solar 1, LLC CSG | McDonough Solar 1, LLC | Blandinsville, IL | Midcontinent Independent System Operator, Inc. (MISO) | 3.9 GWh | Nov 2020 | Dec 2025 | Solar |
| Morgan Solar 4, LLC CSG | Morgan Solar 4, LLC | Murrayville, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 GWh | Nov 2020 | Dec 2025 | Solar |
| Mendota | Mendota US Solar 1 LLC | Mendota, IL | PJM Interconnection, LLC (PJM) | 3.3 GWh | Nov 2020 | Dec 2025 | Solar |
| Marlow Solar, LLC CSG | Marlow Solar, LLC | Bluford, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.3 GWh | Nov 2020 | Dec 2025 | Solar |
| Morgan Solar 1 CSG | Morgan Solar 1 LLC | Meredosia, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 GWh | Jul 2021 | Dec 2025 | Solar |
| Morgan Solar 1b CSG | Morgan Solar 1b LLC | Meredosia, IL | Midcontinent Independent System Operator, Inc. (MISO) | 3.5 GWh | Jul 2021 | Dec 2025 | Solar |
| Moraine CSG | Moraine Solar, LLC | Downs, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.6 GWh | Aug 2021 | Dec 2025 | Solar |
| Mendota Rich Dev CSG | 42nd Road Solar LLC | Mendota, IL | PJM Interconnection, LLC (PJM) | 4.1 GWh | Jan 2022 | Dec 2025 | Solar |
| Mulligan Solar, LLC | Mulligan Solar | Broadwell, IL | Midcontinent Independent System Operator, Inc. (MISO) | 143.3 GWh | Jun 2022 | Aug 2026 | Solar |
| Manteno Solar 1 LLC | SRC Partnership 12, LLC | Manteno, IL | PJM Interconnection, LLC (PJM) | 2.5 GWh | Jul 2023 | Dec 2025 | Solar |
| Moraine Sands Wind Power | Moraine Sands Wind Power, LLC | Mason City, IL | Midcontinent Independent System Operator, Inc. (MISO) | 583.8 GWh | Nov 2023 | Aug 2026 | Wind |
| Midland Wind | Avangrid Power LLC | Kewane, IL | PJM Interconnection, LLC (PJM) | 356.9 GWh | Nov 2023 | Aug 2026 | Wind |
| Marion Solar 4b LLC | Pivot Energy | Sandoval, IL | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Apr 2024 | Dec 2025 | Solar |
| Moore Solar 1, LLC | SRC Partnership 12, LLC | Waterman, IL | PJM Interconnection, LLC (PJM) | 4.3 GWh | May 2024 | Dec 2025 | Solar |
| Moore Solar 1A, LLC | SRC Partnership 12, LLC | Waterman, IL | PJM Interconnection, LLC (PJM) | 4.8 GWh | May 2024 | Dec 2025 | Solar |
| Mulberry Solar, LLC | Reactivate | Granite City, IL | PJM Interconnection, LLC (PJM) | 4.0 GWh | Oct 2024 | Dec 2025 | Solar |
| Monee Solar 1, LLC | Reactivate | Peotone, IL | PJM Interconnection, LLC (PJM) | 3.8 GWh | Oct 2024 | Dec 2025 | Solar |
| Maple Flats | Invenergy Services LLC | Louisville, IL | Midcontinent Independent System Operator, Inc. (MISO) | 513.4 GWh | Oct 2024 | Aug 2026 | Solar |
| Macomb 2A | SoCore Energy LLC | Macomb, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.2 GWh | Nov 2024 | Dec 2025 | Solar |
| Machesney Park | Solar DG IL 1 LLC | Machesney Park, IL | PJM Interconnection, LLC (PJM) | 3.5 GWh | Nov 2024 | Dec 2025 | Solar |
| Mound City Solar | Mound City Solar PV | Mound City, IL | PJM Interconnection, LLC (PJM) | 8.8 GWh | Nov 2024 | Dec 2025 | Solar |
| Marion Solar 2 | Pivot Energy | Sandoval, IL | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Dec 2024 | Dec 2025 | Solar |
| Midwest Power Partners LLC (Pirolo) | SRC Partnership 15 LLC | Williamson, IL | PJM Interconnection, LLC (PJM) | 9.1 GWh | Jan 2025 | Dec 2025 | Solar |
| Marshall Solar (IL) | Altorfer Inc. | Marshall, IL | Midcontinent Independent System Operator, Inc. (MISO) | 1.0 MWh | Mar 2025 | Jan 2025 | Solar |
| Marathon Petroleum - Robinson Refinery | Onyx Asset Services Group | Robinson, IL | Midcontinent Independent System Operator, Inc. (MISO) | 5.4 GWh | May 2025 | Dec 2025 | Solar |
| Millstadt IL 1, LLC | SRC Partnership 16, LLC | Belleville, IL | PJM Interconnection, LLC (PJM) | 2.3 GWh | May 2025 | Dec 2025 | Solar |
| Macon County IL S1 | SolAmerica Energy, LLC | Decatur, IL | Midcontinent Independent System Operator, Inc. (MISO) | 316.0 MWh | Sep 2025 | Dec 2025 | Solar |
| Medanos Solar LLC | Dimension Energy LLC | Homer, IL | Midcontinent Independent System Operator, Inc. (MISO) | 96.0 MWh | Nov 2025 | Dec 2025 | Solar |