Midcontinent Independent System Operator, Inc.
Balancing Authority Summary Information
Midcontinent Independent System Operator, Inc. is ranked #2 out of 64 balancing authorities in terms of total annual electricity generation.
| Balancing Authority | Midcontinent Independent System Operator, Inc. |
|---|---|
| States | Arkansas Illinois Indiana Iowa Kentucky Louisiana Michigan Minnesota Mississippi Missouri Montana North Dakota South Dakota Texas Wisconsin |
| Last Update | Oct 2026 |
| Annual Generation | 677.7 TWh |
| Power Plants | 3,095 |
| Utilities | 1,372 |
| Ranked #2 out of 64 in terms of net annual generation | |
| Ranked #2 out of 53 in terms of annual generation from natural gas | |
| Power Plant Types | Natural Gas | 37.1% Coal | 26.2% Wind | 15% Nuclear | 13.8% Solar | 6.1% Water | 1.4% Other Fuel | 0.5% |
Map of Midcontinent Independent System Operator, Inc.
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Daily Net Generation for Midcontinent Independent System Operator, Inc. for the past 3 Years
| Plant Name | Utility | Location | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|
| SAE Ottawa IL | SolAmerica Energy, LLC | Ottawa, IL | 225 MWh | Aug 2025 | Dec 2025 | Solar |
| Peoria County IL S2 | SolAmerica Energy, LLC | Peoria, IL | 2 GWh | May 2025 | Dec 2025 | Solar |
| Tazewell County IL S1 | SolAmerica Energy, LLC | Delavan, IL | 386 MWh | Sep 2025 | Dec 2025 | Solar |
| Prairie Creek Solar | Sol Systems | Jacksonville, IL | 59 GWh | Oct 2023 | Jul 2026 | Solar |
| Tilden Solar | Sol Systems | Coulterville, IL | 228 GWh | Oct 2025 | Jul 2026 | Solar |
| Eldorado Solar II | Sol Systems | Eldorado, IL | 202 GWh | Sep 2025 | Jul 2026 | Solar |
| Eldorado Solar I | Sol Systems | Eldorado, IL | 317 GWh | Dec 2024 | Jul 2026 | Solar |
| LA3 West Baton Rouge Solar Facility | Sol Systems | West Baton Rouge, LA | 109 GWh | Aug 2020 | Jul 2026 | Solar |
| Downsville DPC Solar | SoCore Energy LLC | Menomonee, WI | 2 GWh | Jan 2017 | Jul 2026 | Solar |
| Mt. Hope DPC Solar | SoCore Energy LLC | Mt. Hope, WI | 2 GWh | Dec 2016 | Jul 2026 | Solar |
| Liberty Pole DPC Solar | SoCore Energy LLC | Viroqua, WI | 2 GWh | Apr 2017 | Jul 2026 | Solar |
| Vermillion River_MN_GRE DEA-GM | SoCore Energy LLC | Farmington, MN | 5 GWh | Nov 2019 | Dec 2025 | Solar |
| Warren DPC Solar | SoCore Energy LLC | Roberts, WI | 4 GWh | Apr 2017 | Jul 2026 | Solar |
| Nesvold Watertown Solar | SoCore Energy LLC | Watertown, MN | 9 GWh | Dec 2017 | Dec 2025 | Solar |
| Medford DPC Solar | SoCore Energy LLC | Medford, WI | 3 GWh | Jan 2017 | Jul 2026 | Solar |
| Sauk DPC Solar | SoCore Energy LLC | Wonewoc, WI | 2 GWh | Dec 2016 | Dec 2025 | Solar |
| Lafayette DPC Solar | SoCore Energy LLC | Chippewa Falls, WI | 2 GWh | May 2017 | Dec 2025 | Solar |
| Whistling Winds DPC Solar | SoCore Energy LLC | New Lisbon, WI | 2 GWh | May 2017 | Jul 2026 | Solar |
| GRE Marshan Solar | SoCore Energy LLC | Hastings, MN | 1 GWh | Oct 2017 | Dec 2025 | Solar |
| New Auburn DPC Solar | SoCore Energy LLC | New Auburn, WI | 5 GWh | Dec 2017 | Jul 2026 | Solar |
| Strawberry Point DPC Solar | SoCore Energy LLC | Strawberry Point, IA | 2 GWh | Oct 2017 | Dec 2025 | Solar |
| Sand Lake DPC Solar | SoCore Energy LLC | Centuria, WI | 2 GWh | Oct 2017 | Dec 2025 | Solar |
| Conrath DPC Solar | SoCore Energy LLC | Conrath, WI | 1 GWh | May 2017 | Dec 2025 | Solar |
| Michael Solar | SoCore Energy LLC | Freeport, MN | 7 GWh | Nov 2017 | Dec 2025 | Solar |
| Taylors Falls CSG | SoCore Energy LLC | Taylor Falls, MN | 8 GWh | Dec 2017 | Dec 2025 | Solar |
| Richmond CSG | SoCore Energy LLC | Richmond, MN | 9 GWh | Nov 2017 | Dec 2025 | Solar |
| Gopher CSG | SoCore Energy LLC | Taylor Falls, MN | 8 GWh | Dec 2017 | Dec 2025 | Solar |
| Lahr 1, LLC | SoCore Energy LLC | Wakefield Township, MN | 8 GWh | Dec 2017 | Dec 2025 | Solar |
| Athens MN CONX | SoCore Energy LLC | Athens, MN | 10 GWh | Nov 2018 | Dec 2025 | Solar |
| Anoka County MN CONX | SoCore Energy LLC | Ramsey, MN | 6 GWh | Sep 2018 | Dec 2025 | Solar |
| Hampton MN GRE | SoCore Energy LLC | Hampton Township, MN | 3 GWh | Sep 2018 | Sep 2025 | Solar |
| DPC Madison | SoCore Energy LLC | Ridgeway, IA | 3 GWh | Jan 2019 | Dec 2025 | Solar |
| Abel Solar | SoCore Energy LLC | Morrison, IL | 4 GWh | Nov 2021 | Dec 2025 | Solar |
| Bunker Hill Solar | SoCore Energy LLC | Lyndon, IL | 4 GWh | Oct 2021 | Dec 2025 | Solar |
| DPC York | SoCore Energy LLC | Thomson, IL | 3 GWh | Jul 2019 | Dec 2025 | Solar |
| GRE Cambridge Solar | SoCore Energy LLC | Cambridge, MN | 4 GWh | Nov 2019 | Dec 2025 | Solar |
| Illinois PV Knox 3A | SoCore Energy LLC | Galesburg, IL | 3 GWh | Nov 2024 | Dec 2025 | Solar |
| Illinois PV Knox 3B | SoCore Energy LLC | Galesburg, IL | 3 GWh | Nov 2024 | Dec 2025 | Solar |
| Illinois PV Knox 1B | SoCore Energy LLC | Yates City, IL | 4 GWh | Aug 2024 | Dec 2025 | Solar |
| Macomb 2A | SoCore Energy LLC | Macomb, IL | 4 GWh | Nov 2024 | Dec 2025 | Solar |
| Rockford Plant | SoCore Energy LLC | Rockford, IL | 3 GWh | Nov 2024 | Dec 2025 | Solar |
| Yorktown 2 Solar | SoCore Energy LLC | Lyndon, IL | 4 GWh | Dec 2023 | Dec 2025 | Solar |
| Yorktown 1 Solar | SoCore Energy LLC | Lyndon, IL | 4 GWh | Dec 2023 | Dec 2025 | Solar |
| Illinois PV Knox 1A | SoCore Energy LLC | Yates City, IL | 3 GWh | Aug 2024 | Dec 2025 | Solar |
| Fond du Lac Community Solar | SoCore Energy LLC | Fond Du Lac, WI | 2 GWh | Nov 2021 | Dec 2025 | Solar |
| Round Grove 2 | SoCore Energy LLC | Lyndon, IL | 5 GWh | Oct 2021 | Dec 2025 | Solar |
| Round Grove 1 | SoCore Energy LLC | Lyndon, IL | 4 GWh | Oct 2021 | Dec 2025 | Solar |
| Sleepy Eye | Sleepy Eye Public Utility Comm | Sleepy Eye, MN | 42 MWh | Jun 1995 | Dec 2025 | Distillate Fuel Oil |
| Sky Volt | Sky Volt, LLC | Greenfield, IA | 5 GWh | Jul 2012 | Dec 2025 | Wind |
| Siems Solar Project CSG | Siems Community Solar LLC | Mazeppa, MN | 2 GWh | Jul 2020 | Dec 2025 | Solar |
| Shipsterns Solar, LLC | Shipsterns Solar, LLC | Albion, MI | 41 GWh | Sep 2023 | Dec 2025 | Solar |
| Shell Chemical | Shell Chemical LP - Geismar | Geismar, LA | 585 GWh | Jul 2002 | Dec 2025 | Natural Gas |
| Shelby Energy County | Shelby County Energy Center, LLC | Neoga, IL | 184 GWh | May 2000 | Dec 2025 | Natural Gas |
| Shaokatan Hills LLC | Shaokatan Hills, LLC (Longroad) | Hendricks, MN | 11 GWh | Jul 1999 | Dec 2025 | Wind |
| Shane's Wind Machine | Shane's Wind Machine LLC | Ruthton, MN | 7 GWh | Jun 2006 | Jan 2025 | Wind |
| Severson Garden | Severson HoldCo LLC | Waseca, MN | 2 GWh | Sep 2020 | Dec 2025 | Solar |
| Sebree Solar I | Sebree Solar, LLC | Robards, KY | 449 GWh | Aug 2025 | Jul 2026 | Solar |
| Searcy Solar Hybrid | Searcy Solar, LLC | Searcy, AR | 173 GWh | Dec 2021 | Jul 2026 | Solar |
| Schwinghamer Project CSG | Schwinghamer Community Solar LLC | Albany, MN | 2 GWh | Nov 2019 | Dec 2025 | Solar |
| Schulte 2 Community Solar | Schulte 2 Community Solar | Lacon, IL | 4 GWh | Nov 2020 | Dec 2025 | Solar |
| Schull CSG | Schull CSG LLC | Mapleton, MN | 2 GWh | Oct 2021 | Dec 2025 | Solar |
| Schueler Community Solar | Schueler Community Solar LLC | Annandale, MN | 2 GWh | Jul 2020 | Dec 2025 | Solar |
| School Sisters CSG | School Sisters CSG LLC | Mankato, MN | 2 GWh | Apr 2018 | Dec 2025 | Solar |
| Scandia Community Solar Garden | Scandia CSG LLC | Scandia, MN | 4 GWh | Jun 2018 | Dec 2025 | Solar |
| Sartell Holdco CSG | Sartell Holdco LLC | Sartell, MN | 8 GWh | Apr 2019 | Dec 2025 | Solar |
| Sappi Cloquet Mill | Sappi Cloquet LLC | Cloquet, MN | 460 GWh | Dec 1928 | Jul 2026 | Black Liquor : 62.4% Wood/Wood Waste Solids : 17.5% Natural Gas : 16.2% Water : 3.0% Distillate Fuel Oil : 0.5% |
| Sandoval | Sandoval Holdco, LLC | Centralia, IL | 4 GWh | Feb 2021 | Dec 2025 | Solar |
| Salt Creek Wind | Salt Creek Wind, LLC | Traer, IA | 425 GWh | Nov 2025 | Jul 2026 | Wind |
| Peoples Generating Station | Sagepoint Energy | Ann Arbor, MI | 25 GWh | Aug 1995 | Dec 2025 | Landfill Gas |
| SAF Hydroelectric LLC | SAF Hydroelectric LLC | Minneapolis, MN | 30 GWh | Nov 2011 | Dec 2025 | Water |
| Sac County Wind, LLC | Sac County Wind | Sac City, IA | 323 GWh | Nov 2021 | Jul 2026 | Wind |
| SABIC Innovative Plastics Mt. Vernon | SABIC IP Mt. Vernon, LLC | Mount Vernon, IN | 584 GWh | May 1996 | Jul 2026 | Natural Gas |
| Waxdale | S.C. Johnson & Son, Inc. | Sturtevant, WI | 37 GWh | Nov 2003 | Jul 2026 | Natural Gas : 45.0% Landfill Gas : 28.6% Wind : 18.0% Solar : 8.4% |
| CED Champaign Solar LLC | RWE Clean Energy | Champaign, IL | 3 GWh | Jun 2020 | Dec 2025 | Solar |
| CED Centerville Wind | RWE Clean Energy | Centerville, IA | 26 GWh | Nov 2021 | Dec 2025 | Wind |
| CED Mason City Wind | RWE Clean Energy | Mason City, IA | 29 GWh | Apr 2020 | Dec 2025 | Wind |
| Valley View Transmission LLC | RWE Clean Energy | Chandler, MN | 4 GWh | Jun 2011 | Dec 2025 | Wind |
| CED Manchester Wind | RWE Clean Energy | Manchester, IA | 28 GWh | Mar 2022 | Dec 2025 | Wind |
| Settlers Trail Wind Farm LLC | RWE Clean Energy | Sheldon, IL | 320 GWh | Sep 2011 | Dec 2025 | Wind |
| Roeder Family Wind Farm LLC | RWE Clean Energy | Manly, IA | 5 GWh | Aug 2011 | Dec 2025 | Wind |
| Windwalkers LLC | RWE Clean Energy | Kensett, IA | 2 GWh | Aug 2011 | Dec 2025 | Wind |
| Pioneer Trail Wind Farm, LLC | RWE Clean Energy | Paxton, IL | 470 GWh | Nov 2011 | Dec 2025 | Wind |
| Red Lake Falls Community Hybrid | RWE Clean Energy | Red Lake Falls, MN | 15 GWh | Nov 2020 | Dec 2025 | Wind : 95.1% Solar : 4.9% |
| Woodstock Windfarm | RWE Clean Energy | Woodstock, MN | 37 GWh | Apr 1999 | Dec 2025 | Wind |
| Quartz Solar, LLC | RWE Clean Energy | Wynne, AR | 293 GWh | Feb 2025 | Jul 2026 | Solar |
| Lafitte Solar, LLC | RWE Clean Energy | Monroe, LA | 135 GWh | Nov 2025 | Jul 2026 | Solar |
| Emily Solar, LLC | RWE Clean Energy | Casey, IL | 376 GWh | Nov 2025 | Jul 2026 | Solar |
| Casey Fork Solar, LLC | RWE Clean Energy | Texico, IL | 38 GWh | - | Jul 2026 | Solar |
| Rosewater Wind Farm | Rosewater Wind Farm LLC | Chalmers, IN | 321 GWh | Nov 2020 | Jul 2026 | Wind |
| Rosemount Community Solar | Rosemount Community Solar | Rosemount, MN | 8 GWh | Nov 2016 | Dec 2025 | Solar |
| Roseman | Roseman Energy, LLC | Anita, IA | 7 GWh | Jan 2017 | Dec 2025 | Wind |
| Roquette America | Roquette America | Keokuk, IA | 222 GWh | Jun 2004 | Jul 2026 | Natural Gas |
| Rollingstone Holdco CSG | Rollingstone Holdco LLC | Rollingstone, MN | 8 GWh | Jul 2019 | Dec 2025 | Solar |
| Rocky Mountain Elk Solar Community Solar | Rocky Mountain Elk Solar, LLC | Sheffield, IL | 108 MWh | Nov 2025 | Dec 2025 | Solar |
| Battle Creek Mill | RockTenn-Battle Creek Mill | Battle Creek, MI | 4 GWh | Dec 1950 | Dec 2024 | Natural Gas |
| Rockford Solar | Rockford Solar, LLC | Rockford, IL | 4 GWh | Nov 2021 | Dec 2025 | Solar |
| Rockford CS 2 | Rockford CS 2, LLC | Rockford, IL | 4 GWh | Mar 2021 | Dec 2025 | Solar |
| Rockford CS 1 | Rockford CS 1, LLC | Rockford, IL | 4 GWh | Mar 2021 | Dec 2025 | Solar |
| Rock County Wind Fuel, LLC | Rock County Wind Fuel, LLC | Luverne, MN | 17 GWh | Apr 2020 | Dec 2025 | Wind |
| Westside Energy Station | Rochester Public Utilities | Rochester, MN | 57 GWh | Feb 2018 | Dec 2025 | Natural Gas |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #61 | Alcoa Power Generating, Inc. - Yadkin Division | 433.0 GWh | 4 |
| #26 | Associated Electric Cooperative, Inc. | 22.9 TWh | 47 |
| #13 | Duke Energy Carolinas | 113.4 TWh | 578 |
| #50 | Duke Energy Progress West | 4.6 TWh | 15 |
| #23 | Louisville Gas and Electric Company and Kentucky Utilities Company | 34.2 TWh | 25 |
| #1 | PJM Interconnection, LLC | 890.9 TWh | 2,806 |
| #6 | Southern Company Services, Inc. - Trans | 259.3 TWh | 423 |
| #5 | Southwest Power Pool | 314.5 TWh | 876 |
| #53 | Southwestern Power Administration | 3.5 TWh | 37 |
| #9 | Tennessee Valley Authority | 166.2 TWh | 209 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 890.9 TWh | 2,806 |
| #2 | Midcontinent Independent System Operator, Inc. | 677.7 TWh | 3,095 |
| #3 | Electric Reliability Council of Texas, Inc. | 506.3 TWh | 1,487 |
| #5 | Southwest Power Pool | 314.5 TWh | 876 |
| #6 | Southern Company Services, Inc. - Trans | 259.3 TWh | 423 |
| #7 | California Independent System Operator | 168.7 TWh | 2,170 |
| #9 | Tennessee Valley Authority | 166.2 TWh | 209 |
| #10 | Florida Power & Light Co. | 153.0 TWh | 188 |
| #12 | New York Independent System Operator | 134.1 TWh | 1,334 |
| #13 | Duke Energy Carolinas | 113.4 TWh | 578 |