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 | Jul 2026 |
| Annual Generation | 669.4 TWh |
| Power Plants | 3,038 |
| Utilities | 1,345 |
| 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% Coal | 26.5% Wind | 14.9% Nuclear | 13.9% Solar | 5.7% Water | 1.4% 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 |
|---|---|---|---|---|---|---|
| Winfield Solar | Winfield Solar I, LLC | Winfield, MO | 281 GWh | Apr 2025 | May 2026 | Solar |
| Stockton (MN) | Altus Power America Management, LLC | Winona, MN | 4 GWh | Oct 2021 | Dec 2025 | Solar |
| Veolia ES Blackfoot Landfill Facility | Southern Indiana Gas & Elec Co | Winslow, IN | 4 GWh | May 2009 | Dec 2025 | Landfill Gas |
| Eichtens II CSG | Terraform Arcadia | Winstead, MN | 2 GWh | Aug 2018 | Dec 2025 | Solar |
| Barone CSG | Terraform Arcadia | Winstead, MN | 2 GWh | Sep 2018 | Dec 2025 | Solar |
| South Garden | South Garden LLC | Winstead, MN | 2 GWh | Jun 2023 | Dec 2025 | Solar |
| Montgomery Winsted CSG | Minnesota Solar CSG 4, LLC | Winsted, MN | 5 GWh | Oct 2017 | Dec 2024 | Solar |
| Nautilus Winsted Solar (CSG) | Nautilus Solar Solutions | Winsted, MN | 5 GWh | Mar 2019 | May 2026 | Solar |
| LAC Courte Oreilles Hydroelect | Zero6 Energy Hydro | Winter, WI | 7 GWh | Nov 1986 | Dec 2025 | Water |
| Winterset | City of Winterset - (IA) | Winterset, IA | 33 MWh | Jun 1956 | Dec 2025 | Distillate Fuel Oil : 57.8% Natural Gas : 42.2% |
| Winton | ALLETE, Inc. | Winton, MN | 18 GWh | Jul 1923 | Dec 2025 | Water |
| Wiota | Wiota Wind Energy, LLC #1 | Wiota, IA | 5 GWh | Apr 2012 | Dec 2025 | Wind |
| Kilbourn | Wisconsin Power & Light Co | Wisconsin Dells, WI | 49 GWh | Jun 1926 | Dec 2025 | Water |
| Wisconsin Rapids | Consolidated Water Power Co | Wisconsin Rapids, WI | 46 GWh | Dec 1902 | Dec 2025 | Water |
| Biron Mill | ND Paper, Inc. | Wisconsin Rapids, WI | 96 GWh | Aug 1947 | Dec 2024 | Natural Gas : 79.6% Subbituminous Coal : 20.4% |
| Indiana Crossroads Wind Farm II | Indiana Crossroads Wind Farm II LLC | Wolcott, IN | 593 GWh | Nov 2024 | May 2026 | Wind |
| Sauk DPC Solar | SoCore Energy LLC | Wonewoc, WI | 2 GWh | Dec 2016 | Dec 2025 | Solar |
| USS Wolf Solar LLC | United States Solar Corporation | Wood Lake, MN | 2 GWh | Jun 2023 | Dec 2025 | Solar |
| Woodbury Solar | MN CSG 2, LLC | Woodbury, MN | 4 GWh | Jun 2020 | Dec 2025 | Solar |
| Ridgewind | Ridgewind Power Partners LLC | Woodstock, MN | 75 GWh | Dec 2010 | Dec 2025 | Wind |
| Grant County Wind LLC | Grant County Wind, LLC | Woodstock, MN | 53 GWh | Jul 2010 | Dec 2025 | Wind |
| Moraine II Wind LLC | Avangrid Power LLC | Woodstock, MN | 101 GWh | Jan 2009 | Dec 2025 | Wind |
| Stoneray Power Partners, LLC | EDF Renewable Asset Holdings, Inc. | Woodstock, MN | 363 GWh | Jan 2019 | May 2026 | Wind |
| Rock Aetna Power Partners | Northern States Power Co - Minnesota | Woodstock, MN | 84 GWh | Nov 2022 | Dec 2025 | Wind |
| Windcurrent Farms LLC | Windcurrent Farms LLC | Woodstock, MN | 5 GWh | Aug 2003 | Dec 2025 | Wind |
| Woodstock Windfarm | RWE Clean Energy | Woodstock, MN | 37 GWh | Apr 1999 | Dec 2025 | Wind |
| K-Brink Windfarm LLC | K-brink Windfarm, LLC | Woodstock, MN | 6 GWh | Jan 2003 | Dec 2025 | Wind |
| Fey Windfarm LLC | Fey Windfarm LLC | Woodstock, MN | 4 GWh | Aug 2003 | Dec 2025 | Wind |
| Boeve Windfarm LLC | Boeve Windfarm LLC | Woodstock, MN | 4 GWh | Jul 2003 | Dec 2025 | Wind |
| Westridge Windfarm LLC | Westridge Windfarm LLC | Woodstock, MN | 4 GWh | Oct 2003 | Dec 2025 | Wind |
| CG Windfarm LLC | CG Windfarm LLC | Woodstock, MN | 2 GWh | Nov 2003 | Jan 2025 | Wind |
| Moraine Wind LLC | Avangrid Power LLC | Woodstock, MN | 89 GWh | Nov 2003 | Dec 2025 | Wind |
| Kas Brothers Windfarm | Kas Brothers Windfarm LLC | Woodstock, MN | 2 GWh | Nov 2001 | Dec 2025 | Wind |
| Next Generation | OneEnergy, Inc. | Woodville, WI | 331 MWh | Sep 2025 | Dec 2025 | Solar |
| Worthington Generation LLC | Hoosier Energy R E C, Inc | Worthington, IN | 203 GWh | May 2000 | Dec 2025 | Natural Gas |
| Worthington | City of Worthington - (MN) | Worthington, MN | 6 GWh | Jan 2002 | Dec 2025 | Wind : 99.3% Distillate Fuel Oil : 0.7% |
| Ewington Energy Systems, LLC | Ewington Energy Systems, LLC | Worthington, MN | 81 GWh | Dec 2007 | Dec 2025 | Wind |
| MP CSG 1 LLC | United States Solar Corporation | Wrenshall, MN | 2 GWh | Dec 2017 | Dec 2025 | Solar |
| Fox Energy Center | Wisconsin Public Service Corp | Wrightstown, WI | 4 TWh | May 2005 | May 2026 | Natural Gas |
| Wyandotte | Wyandotte Municipal Serv Comm - (MI) | Wyandotte, MI | 110 MWh | Dec 1947 | May 2026 | Distillate Fuel Oil |
| Crossover Wind | Crossover Wind, LLC | Wynne, AR | 402 GWh | May 2025 | May 2026 | Wind |
| Quartz Solar, LLC | RWE Clean Energy | Wynne, AR | 299 GWh | Feb 2025 | May 2026 | Solar |
| Wyoming 2 CSG, LLC | Ecoplexus, Inc | Wyoming, MN | 8 GWh | Feb 2018 | Dec 2025 | Solar |
| Illinois PV Knox 1A | SoCore Energy LLC | Yates City, IL | 3 GWh | Aug 2024 | Dec 2025 | Solar |
| Illinois PV Knox 1B | SoCore Energy LLC | Yates City, IL | 4 GWh | Aug 2024 | Dec 2025 | Solar |
| CF Industries Yazoo City Complex | CF Industries Nitrogen LLC | Yazoo City, MS | 104 GWh | Jun 1984 | May 2026 | Natural Gas |
| Lind Solar CSG | Terraform Arcadia | Young America, MN | 8 GWh | Jan 2017 | Dec 2025 | Solar |
| East. Michigan Univ. Heating Plant | East. Michigan Univ. Heating Plant | Ypsilanti, MI | 33 GWh | Sep 1987 | Dec 2025 | Natural Gas |
| FPL Energy Story Wind LLC | FPL Energy Story Wind LLC | Zearing, IA | 571 GWh | Nov 2008 | May 2026 | Wind |
| Garden Wind LLC | Garden Wind LLC | Zearing, IA | 343 GWh | Nov 2009 | May 2026 | Wind |
| Municipal Power Plant | City of Zeeland - (MI) | Zeeland, MI | 205 MWh | May 2002 | Dec 2025 | Natural Gas |
| Zeeland Generating Station | Consumers Energy Co - (MI) | Zeeland, MI | 6 TWh | May 2001 | May 2026 | Natural Gas |
| Zeeland | City of Zeeland - (MI) | Zeeland, MI | 600 MWh | Dec 1956 | Dec 2025 | Natural Gas : 89.2% Distillate Fuel Oil : 10.8% |
| Riley Generating Station | City of Zeeland - (MI) | Zeeland, MI | 844 MWh | Jun 2006 | Dec 2025 | Natural Gas |
| Carina Community Solar | Carina Community Solar | Zumbro Falls, MN | 6 GWh | Jan 2018 | Dec 2025 | Solar |
| Zumbro Community Solar Garden | Zumbro Solar LLC | Zumbrota, MN | 2 GWh | Mar 2018 | Dec 2025 | Solar |
| Goodhue Community Solar One LLC CSG | Madison Energy Holdings LLC | Zumbrota, MN | 2 GWh | Jan 2020 | Dec 2025 | Solar |
| Huneke II CSG | Terraform Arcadia | Zumbrota, MN | 2 GWh | Aug 2018 | Dec 2025 | Solar |
| Huneke I CSG | Huneke I CSG LLC | Zumbrota, MN | 2 GWh | Apr 2018 | Dec 2025 | Solar |
| FastSun 9 CSG | Altus Power America Management, LLC | Zumbrota, MN | 2 GWh | Feb 2020 | Dec 2025 | Solar |
| FastSun 11 CSG | Altus Power America Management, LLC | Zumbrota, MN | 2 GWh | Feb 2020 | Dec 2025 | Solar |
| FastSun 10 CSG | Altus Power America Management, LLC | Zumbrota, MN | 2 GWh | Feb 2020 | Dec 2025 | Solar |
| Goodhue Community Solar Two LLC | Madison Energy Holdings LLC | Zumbrota, MN | 2 GWh | Mar 2020 | Dec 2025 | Solar |
| Brenda Luhman - CSG | CleanCapital Holdings | Zumbrota, MN | 2 GWh | Jul 2020 | Dec 2025 | Solar |
| T Luhman CSG | Madison Energy Holdings LLC | Zumbrota, MN | 2 GWh | Jul 2021 | Dec 2025 | Solar |
| Huneke CSG 2, LLC | Madison Energy Holdings LLC | Zumbrota, MN | 2 GWh | Oct 2020 | Dec 2025 | Solar |
| Huneke CSG 1, LLC | Madison Energy Holdings LLC | Zumbrota, MN | 2 GWh | Sep 2020 | Dec 2025 | Solar |
| Novel Huneke Solar LLC CSG | REA Investments, LLC | Zumbrota, MN | 2 GWh | Aug 2021 | Dec 2025 | Solar |
| Goodhue Community Solar Three LLC CSG | Madison Energy Holdings LLC | Zumbrota, MN | 2 GWh | Jan 2020 | Dec 2025 | Solar |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #61 | Alcoa Power Generating, Inc. - Yadkin Division | 442.5 GWh | 4 |
| #26 | Associated Electric Cooperative, Inc. | 23.4 TWh | 47 |
| #13 | Duke Energy Carolinas | 112.6 TWh | 577 |
| #50 | Duke Energy Progress West | 4.5 TWh | 15 |
| #23 | Louisville Gas and Electric Company and Kentucky Utilities Company | 33.9 TWh | 25 |
| #1 | PJM Interconnection, LLC | 882.8 TWh | 2,652 |
| #6 | Southern Company Services, Inc. - Trans | 253.5 TWh | 422 |
| #5 | Southwest Power Pool | 306.8 TWh | 856 |
| #53 | Southwestern Power Administration | 4.1 TWh | 34 |
| #9 | Tennessee Valley Authority | 163.4 TWh | 207 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 882.8 TWh | 2,652 |
| #2 | Midcontinent Independent System Operator, Inc. | 669.4 TWh | 3,038 |
| #3 | Electric Reliability Council of Texas, Inc. | 494.1 TWh | 1,471 |
| #5 | Southwest Power Pool | 306.8 TWh | 856 |
| #6 | Southern Company Services, Inc. - Trans | 253.5 TWh | 422 |
| #7 | California Independent System Operator | 169.4 TWh | 2,135 |
| #9 | Tennessee Valley Authority | 163.4 TWh | 207 |
| #10 | Florida Power & Light Co. | 152.2 TWh | 187 |
| #12 | New York Independent System Operator | 134.3 TWh | 1,299 |
| #13 | Duke Energy Carolinas | 112.6 TWh | 577 |