Midcontinent Independent System Operator, Inc.
Balancing Authority Summary Information
Midcontinent Independent System Operator, Inc. is ranked #2 out of 65 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 | Nov 2025 |
| Annual Generation | 655.1 TWh |
| Power Plants | 2,831 |
| Utilities | 1,296 |
| Ranked #2 out of 65 in terms of net annual generation | |
| Ranked #2 out of 53 in terms of annual generation from natural gas | |
| Power Plant Types | Natural Gas | 35.7% Coal | 29% Wind | 14.9% Nuclear | 13.9% Solar | 4.5% Water | 1.5% Other Fuel | 0.6% |
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 |
|---|---|---|---|---|---|---|
| Cataract (MI) | Cataract Hydro, LLC | Gwinn, MI | 5 GWh | Jan 1988 | Dec 2024 | Water |
| GSPP Held LLC CSG | Green Street Power Partners | St. Cloud, MN | 5 GWh | May 2019 | Dec 2024 | Solar |
| Lorin Industries | Lorin Industries | Muskegon, MI | 5 GWh | Dec 1989 | Dec 2024 | Natural Gas |
| Orion Community Solar | Orion Community Solar | St. Joseph, MN | 5 GWh | Dec 2016 | Dec 2024 | Solar |
| IL West Hallock Project1 | IL West Hallock Project1, LLC | Edelstein, IL | 5 GWh | Jul 2021 | Dec 2024 | Solar |
| Armstrong Solar | ETCAP NES CS MN 06 LLC | Glenwood, MN | 5 GWh | Feb 2018 | Dec 2024 | Solar |
| Buffalo Center Wind LLC | Buffalo Center Wind LLC | Little Cedar, IA | 5 GWh | Oct 2011 | Dec 2024 | Wind |
| Kleber | Tower Kleber Ltd Partnership | Onaway, MI | 5 GWh | Dec 1924 | Dec 2024 | Water |
| Winters Spawn LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Dec 2000 | Dec 2024 | Wind |
| Twin Lake Hills LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Nov 2000 | Dec 2024 | Wind |
| Spartan Hills LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Dec 2000 | Dec 2024 | Wind |
| Soliloquoy Ridge LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Dec 2000 | Dec 2024 | Wind |
| Ruthton Ridge LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Dec 2000 | Dec 2024 | Wind |
| Hope Creek LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Dec 2000 | Dec 2024 | Wind |
| Hadley Ridge LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Nov 2000 | Dec 2024 | Wind |
| Florence Hills LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Dec 2000 | Dec 2024 | Wind |
| CF Novel Solar CSG Gardens Eleven, LLC | Cypress Creek Renewables | Mankato, MN | 5 GWh | Nov 2017 | Dec 2024 | Solar |
| Gemini Community Solar | Gemini Community Solar | Scandia, MN | 5 GWh | Aug 2017 | Dec 2024 | Solar |
| Argo Navis Community Solar | Argo Navis Community Solar | Scandia, MN | 5 GWh | Feb 2018 | Dec 2024 | Solar |
| Chisago Holdco LLC, CSG | Chisago Holdco LLC | Center City, MN | 5 GWh | Apr 2019 | Dec 2024 | Solar |
| Haven Solar Project CSG | DG Minnesota CSG, LLC | Saint Cloud, MN | 5 GWh | Jun 2019 | Dec 2024 | Solar |
| Lyra Community Solar | Lyra Community Solar | Waterville, MN | 5 GWh | Jan 2018 | Dec 2024 | Solar |
| Porter Way Community Solar Garden | AEP Onsite Partners, LLC | Waconia, MN | 5 GWh | Jan 2018 | Sep 2025 | Solar |
| Briscoe 2A | 7th Road Solar 2, LLC (Briscoe 2A) | Lostant, IL | 5 GWh | Jan 2023 | Dec 2024 | Solar |
| IL Sidney Project1 | IL Sidney Project1, LLC | Sidney, IL | 5 GWh | Mar 2021 | Dec 2024 | Solar |
| USS Solar Brick | Standard Solar | Standard City, IL | 5 GWh | May 2021 | Dec 2024 | Solar |
| Thomson Reuters Campus Bldg A-D | Thomson Corp | Eagan, MN | 5 GWh | Mar 1999 | Sep 2025 | Distillate Fuel Oil |
| Round Grove 2 | SoCore Energy LLC | Lyndon, IL | 5 GWh | Oct 2021 | Dec 2024 | Solar |
| OE IL Solar 3 | OE IL Solar 3, LLC | Oregon, IL | 5 GWh | Feb 2022 | Dec 2024 | Solar |
| Moraine CSG | Moraine Solar, LLC | Downs, IL | 5 GWh | Aug 2021 | Dec 2024 | Solar |
| Ottumwa City of | Ottumwa City of | Ottumwa, IA | 5 GWh | Jul 1931 | Apr 2024 | Water |
| Warsaw Solar CSG | Altus Power America Management, LLC | Morristown, MN | 5 GWh | Jun 2020 | Dec 2024 | Solar |
| French Road Solar II | French Road Solar II, LLC | Burlington, IL | 4 GWh | Feb 2022 | Dec 2024 | Solar |
| Waterford Holdco CSG | Waterford Holdco LLC | Waterford, MN | 4 GWh | Oct 2017 | Dec 2024 | Solar |
| New Auburn DPC Solar | SoCore Energy LLC | New Auburn, WI | 4 GWh | Dec 2017 | Sep 2025 | Solar |
| St Clair | DTE Electric Company | East China Twp, MI | 4 GWh | Jul 1953 | Sep 2025 | Natural Gas |
| Flambeau Solar Partners | Flambeau Solar Partners, LLC | Phillips, WI | 4 GWh | Apr 2017 | Dec 2024 | Solar |
| Woodbury Solar | MN CSG 2, LLC | Woodbury, MN | 4 GWh | Jun 2020 | Dec 2024 | Solar |
| Olney Solar II CSG | Olney Solar II, LLC | Olney, IL | 4 GWh | May 2021 | Dec 2024 | Solar |
| Duke Building 129 | Concord New Energy | Indianapolis, IN | 4 GWh | Nov 2014 | Dec 2024 | Solar |
| Ridge Farm | Ridge Farm Solar 1 LLC | Ridge Farm, IL | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| Round Grove 1 | SoCore Energy LLC | Lyndon, IL | 4 GWh | Oct 2021 | Dec 2024 | Solar |
| Elba Solar LLC | Elba Solar LLC | Williamsfield, IL | 4 GWh | Jan 2023 | Dec 2024 | Solar |
| Wiota | Wiota Wind Energy, LLC #1 | Wiota, IA | 4 GWh | Apr 2012 | Dec 2024 | Wind |
| WakeSun LLC | SunShare Management | Cold Spring, MN | 4 GWh | Dec 2016 | Dec 2024 | Solar |
| Georgia-Pacific Crossett LLC | Georgia-Pacific Crossett LLC | Crossett, AR | 4 GWh | Apr 1962 | Jun 2024 | Natural Gas |
| Hidden View Dairy, LLC | Hidden View Dairy, LLC | Rensselaer, IN | 4 GWh | Jan 2007 | Dec 2024 | Natural Gas |
| Merrill | Wisconsin Public Service Corp | Merrill, WI | 4 GWh | Feb 1917 | Dec 2024 | Water |
| Marlow Solar, LLC CSG | Marlow Solar, LLC | Bluford, IL | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| IMPA Crawfordsville Solar Park | Indiana Municipal Power Agency | Crawfordsville, IN | 4 GWh | Aug 2015 | Dec 2024 | Solar |
| SV CSG Barrass Farms II LL | SV CSG Barrass Farms II LLC | Marion, IL | 4 GWh | Aug 2023 | Dec 2024 | Solar |
| Agassiz Beach LLC | CHI Operations Inc | Averill, MN | 4 GWh | Jan 2001 | Dec 2024 | Wind |
| Briscoe 1A | 7th Road Solar 1, LLC (Briscoe 1A) | Tonica, IL | 4 GWh | Jan 2023 | Dec 2024 | Solar |
| Onalaska Campus Landfill Biogas | Gundersen Lutheran Biogas I LLC | Onalaska, WI | 4 GWh | Feb 2012 | Dec 2024 | Landfill Gas |
| NLMU Wind | New London Municipal Utilities | New London, IA | 4 GWh | Oct 2011 | Dec 2024 | Wind |
| Blue Lake Solar | Cypress Creek Renewables | Shakopee, MN | 4 GWh | Nov 2016 | Dec 2024 | Solar |
| Sherburne Solar Holdings, LLC | REA Investments, LLC | Princeton, MN | 4 GWh | Feb 2021 | Dec 2024 | Solar |
| Duke Building 98 | Concord New Energy | Indianapolis, IN | 4 GWh | Nov 2014 | Dec 2024 | Solar |
| Potato Rapids | Wisconsin Public Service Corp | Town of Porterfield, WI | 4 GWh | Apr 1921 | Dec 2024 | Water |
| Grand Valley Solar Gardens | Consumers Energy Co - (MI) | Allendale, MI | 4 GWh | Mar 2016 | Sep 2025 | Solar |
| Battle Creek Mill | RockTenn-Battle Creek Mill | Battle Creek, MI | 4 GWh | Dec 1950 | Dec 2024 | Natural Gas |
| Edwardsville Solar II | Edwardsville Solar II, LLC | Edwardsville, IL | 4 GWh | Jun 2021 | Dec 2024 | Solar |
| ACC | Entegrity Solar ACC, LLC | Searcy, AR | 4 GWh | Apr 2023 | Dec 2024 | Solar |
| Rockford CS 1 | Rockford CS 1, LLC | Rockford, IL | 4 GWh | Mar 2021 | Dec 2024 | Solar |
| Bulldog | Bulldog Wind Energy, LLC | Orient, IA | 4 GWh | Sep 2010 | Dec 2024 | Wind |
| 13 Mile Solar, LLC | 13 Mile Solar, LLC | Battle Creek, MI | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| Gas City Solar Park | Indiana Municipal Power Agency | Gas City, IN | 4 GWh | May 2020 | Dec 2024 | Solar |
| Rockford CS 2 | Rockford CS 2, LLC | Rockford, IL | 4 GWh | Mar 2021 | Dec 2024 | Solar |
| New Lisbon Solar | Butter Solar, LLC | New Lisbon, WI | 4 GWh | Aug 2019 | Dec 2024 | Solar |
| Bullhead Solar, LLC | Bullhead Solar, LLC | Fayette, MI | 4 GWh | Dec 2020 | Dec 2024 | Solar |
| Hilltop Power | Hilltop Power, LLC | Edgerton, MN | 4 GWh | Nov 2008 | Dec 2024 | Wind |
| Kent School Road Solar 1 | Kent School Road Solar 1 | Kent, IL | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| May Shannon Solar, LLC | May Shannon Solar, LLC | Clio, MI | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| Stockton (MN) | Greenbacker Renewable Energy Corporation | Winona, MN | 4 GWh | Oct 2021 | Dec 2024 | Solar |
| Morgan Solar 1 CSG | Morgan Solar 1 LLC | Meredosia, IL | 4 GWh | Jul 2021 | Dec 2024 | Solar |
| DL Windy Acres LLC | Brewster | Brewster, MN | 4 GWh | Nov 2003 | Dec 2024 | Wind |
| S&P Windfarm LLC | Brewster | Brewster, MN | 4 GWh | Nov 2003 | Dec 2024 | Wind |
| B&K Energy Systems LLC | Brewster | Brewster, MN | 4 GWh | Nov 2003 | Dec 2024 | Wind |
| IMPA Peru Solar Park | Indiana Municipal Power Agency | Peru, IN | 4 GWh | Jul 2015 | Dec 2024 | Solar |
| UMM Wind Turbine | University of Minnesota Morris Campus | Morris, MN | 4 GWh | May 2011 | Dec 2024 | Wind |
| Alden Road Harvard Solar 1 | Alden Road Harvard Solar 1, LLC | Harvard, IL | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| Scandia Community Solar Garden | Scandia CSG LLC | Scandia, MN | 4 GWh | Jun 2018 | Dec 2024 | Solar |
| IMPA Washington Solar Park | Indiana Municipal Power Agency | Washington, IN | 4 GWh | Aug 2016 | Dec 2024 | Solar |
| WCROC Wind Farm | University of Minnesota WCROC | Morris, MN | 4 GWh | Feb 2005 | Dec 2024 | Wind |
| Hazel Solar, LLC | Hazel Solar, LLC | Howard City, MI | 4 GWh | Jan 2021 | Dec 2024 | Solar |
| Bunker Hill Solar | SoCore Energy LLC | Lyndon, IL | 4 GWh | Oct 2021 | Dec 2024 | Solar |
| Blue Goose Solar CSG | Blue Goose Solar | Morrison, IL | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| Hurricane Creek CSG | SPG IL Hurricane Creek Solar LLC | Carterville, IL | 4 GWh | May 2021 | Dec 2024 | Solar |
| Stoneheart Solar, LLC | Stoneheart Solar, LLC | Saginaw, MI | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| Marshfield Utilities Gas Plant | City of Marshfield - (WI) | Marshfield, WI | 4 GWh | May 2011 | Dec 2024 | Natural Gas |
| Spring Prairie Solar WI, LLC | Wisconsin Electric Power Co | Burlington, WI | 4 GWh | Nov 2023 | May 2024 | Solar |
| Hendershot Solar, LLC | Hendershot Solar, LLC | Tecumseh, MI | 4 GWh | Dec 2020 | Dec 2024 | Solar |
| Water Reclamation Plant | City of Rochester | Rochester, MN | 4 GWh | Feb 2003 | Dec 2024 | Other Biomass Gas |
| Interchange Solar, LLC | Interchange Solar, LLC | Mt. Morris, MI | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| Jack Francis Solar, LLC | Jack Francis Solar, LLC | Clio, MI | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| B.R. Sartell CSG | Minnesota Solar CSG 21, LLC | Sartell, MN | 4 GWh | Oct 2017 | Dec 2024 | Solar |
| UW Parkside | Wisconsin Electric Power Co | Kenosha, WI | 4 GWh | Oct 2020 | Dec 2024 | Solar |
| Clay FC | Clay FC, LLC | Louisville, IL | 4 GWh | Jun 2021 | Dec 2024 | Solar |
| White River (WI) | Northern States Power Co - Minnesota | Ashland, WI | 4 GWh | Dec 1906 | Dec 2024 | Water |
| Schulte 2 Community Solar | Schulte 2 Community Solar | Lacon, IL | 4 GWh | Nov 2020 | Dec 2024 | Solar |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #61 | Alcoa Power Generating, Inc. - Yadkin Division | 696.7 GWh | 4 |
| #27 | Associated Electric Cooperative, Inc. | 23.6 TWh | 47 |
| #13 | Duke Energy Carolinas | 112.5 TWh | 565 |
| #52 | Duke Energy Progress West | 4.3 TWh | 10 |
| #24 | Louisville Gas and Electric Company and Kentucky Utilities Company | 34.4 TWh | 25 |
| #1 | PJM Interconnection, LLC | 870.7 TWh | 2,465 |
| #6 | Southern Company Services, Inc. - Trans | 250.9 TWh | 417 |
| #5 | Southwest Power Pool | 299.9 TWh | 835 |
| #49 | Southwestern Power Administration | 5.2 TWh | 34 |
| #9 | Tennessee Valley Authority | 161.6 TWh | 204 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 870.7 TWh | 2,465 |
| #2 | Midcontinent Independent System Operator, Inc. | 655.1 TWh | 2,831 |
| #4 | Electric Reliability Council of Texas, Inc. | 485.0 TWh | 1,313 |
| #5 | Southwest Power Pool | 299.9 TWh | 835 |
| #6 | Southern Company Services, Inc. - Trans | 250.9 TWh | 417 |
| #7 | California Independent System Operator | 188.0 TWh | 2,075 |
| #9 | Tennessee Valley Authority | 161.6 TWh | 204 |
| #10 | Florida Power & Light Co. | 148.9 TWh | 187 |
| #12 | New York Independent System Operator | 131.6 TWh | 1,211 |
| #13 | Duke Energy Carolinas | 112.5 TWh | 565 |