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 |
|---|---|---|---|---|---|---|
| Woodbury Solar | MN CSG 2, LLC | Woodbury, MN | 4 GWh | Jun 2020 | Dec 2024 | Solar |
| St Clair | DTE Electric Company | East China Twp, MI | 4 GWh | Jul 1953 | Sep 2025 | Natural Gas |
| New Auburn DPC Solar | SoCore Energy LLC | New Auburn, WI | 4 GWh | Dec 2017 | Sep 2025 | Solar |
| Waterford Holdco CSG | Waterford Holdco LLC | Waterford, MN | 4 GWh | Oct 2017 | Dec 2024 | Solar |
| French Road Solar II | French Road Solar II, LLC | Burlington, IL | 4 GWh | Feb 2022 | Dec 2024 | Solar |
| Warsaw Solar CSG | Altus Power America Management, LLC | Morristown, MN | 5 GWh | Jun 2020 | Dec 2024 | Solar |
| Ottumwa City of | Ottumwa City of | Ottumwa, IA | 5 GWh | Jul 1931 | Apr 2024 | Water |
| Moraine CSG | Moraine Solar, LLC | Downs, IL | 5 GWh | Aug 2021 | Dec 2024 | Solar |
| OE IL Solar 3 | OE IL Solar 3, LLC | Oregon, IL | 5 GWh | Feb 2022 | Dec 2024 | Solar |
| Round Grove 2 | SoCore Energy LLC | Lyndon, IL | 5 GWh | Oct 2021 | Dec 2024 | Solar |
| Thomson Reuters Campus Bldg A-D | Thomson Corp | Eagan, MN | 5 GWh | Mar 1999 | Sep 2025 | Distillate Fuel Oil |
| USS Solar Brick | Standard Solar | Standard City, IL | 5 GWh | May 2021 | Dec 2024 | Solar |
| IL Sidney Project1 | IL Sidney Project1, LLC | Sidney, IL | 5 GWh | Mar 2021 | Dec 2024 | Solar |
| Briscoe 2A | 7th Road Solar 2, LLC (Briscoe 2A) | Lostant, IL | 5 GWh | Jan 2023 | Dec 2024 | Solar |
| Porter Way Community Solar Garden | AEP Onsite Partners, LLC | Waconia, MN | 5 GWh | Jan 2018 | Sep 2025 | Solar |
| Lyra Community Solar | Lyra Community Solar | Waterville, MN | 5 GWh | Jan 2018 | Dec 2024 | Solar |
| Haven Solar Project CSG | DG Minnesota CSG, LLC | Saint Cloud, MN | 5 GWh | Jun 2019 | Dec 2024 | Solar |
| Chisago Holdco LLC, CSG | Chisago Holdco LLC | Center City, MN | 5 GWh | Apr 2019 | Dec 2024 | Solar |
| Argo Navis Community Solar | Argo Navis Community Solar | Scandia, MN | 5 GWh | Feb 2018 | Dec 2024 | Solar |
| Gemini Community Solar | Gemini Community Solar | Scandia, MN | 5 GWh | Aug 2017 | Dec 2024 | Solar |
| CF Novel Solar CSG Gardens Eleven, LLC | Cypress Creek Renewables | Mankato, MN | 5 GWh | Nov 2017 | Dec 2024 | Solar |
| 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 |
| Kleber | Tower Kleber Ltd Partnership | Onaway, MI | 5 GWh | Dec 1924 | Dec 2024 | Water |
| Buffalo Center Wind LLC | Buffalo Center Wind LLC | Little Cedar, IA | 5 GWh | Oct 2011 | Dec 2024 | Wind |
| Armstrong Solar | ETCAP NES CS MN 06 LLC | Glenwood, MN | 5 GWh | Feb 2018 | Dec 2024 | Solar |
| 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 |
| Lorin Industries | Lorin Industries | Muskegon, MI | 5 GWh | Dec 1989 | Dec 2024 | Natural Gas |
| GSPP Held LLC CSG | Green Street Power Partners | St. Cloud, MN | 5 GWh | May 2019 | Dec 2024 | Solar |
| Cataract (MI) | Cataract Hydro, LLC | Gwinn, MI | 5 GWh | Jan 1988 | Dec 2024 | Water |
| Crystal Falls | City of Crystal Falls | Crystal Falls, MI | 5 GWh | May 1914 | Dec 2024 | Water |
| Wolverine | Wolverine Wind Energy, LLC | Greenfield, IA | 5 GWh | Sep 2010 | Dec 2024 | Wind |
| CF Novel Solar CSG Gardens Seven, LLC | Cypress Creek Renewables | Clear Lake, MN | 5 GWh | Nov 2017 | Dec 2024 | Solar |
| Viking Solar CSG | Viking Solar, LLC | Palmyra, IL | 5 GWh | May 2021 | Dec 2024 | Solar |
| Crater Community Solar | Crater Community Solar | Granite Falls, MN | 5 GWh | Nov 2017 | Dec 2024 | Solar |
| Greenback Energy | Greenback Energy, LLC (Longroad) | Pipestone, MN | 5 GWh | Nov 2004 | Dec 2024 | Wind |
| Randolph CSG PV1-5 | Ecoplexus, Inc | Randolph, MN | 5 GWh | May 2019 | Dec 2024 | Solar |
| Carver Gladden CSG | Minnesota Solar CSG 8, LLC | Norwood Young America, MN | 5 GWh | Mar 2018 | Dec 2024 | Solar |
| Willmar | Willmar Municipal Utilities | Willmar, MN | 5 GWh | Aug 1956 | Jul 2024 | Wind |
| Mapleton Community Solar | Mapleton Community Solar | Mapleton, MN | 5 GWh | May 2017 | Dec 2024 | Solar |
| SunE Stolee CSG, LLC | Ecoplexus, Inc | Kenyon, MN | 5 GWh | Feb 2018 | Dec 2024 | Solar |
| Morgan Community Solar | Morgan Community Solar | Morgan, MN | 5 GWh | Mar 2017 | Dec 2024 | Solar |
| Vermillion River_MN_GRE DEA-GM | SoCore Energy LLC | Farmington, MN | 5 GWh | Nov 2019 | Dec 2024 | Solar |
| Roeder Family Wind Farm LLC | Consolidated Edison Development Inc. | Manly, IA | 5 GWh | Aug 2011 | Dec 2024 | Wind |
| Lenape II | Lenape Solar II, LLC | Indianapolis, IN | 5 GWh | Oct 2015 | Dec 2024 | Solar |
| Story City Wind Project | Hamilton Wind Energy LLC | Story City, IA | 5 GWh | Sep 2010 | Dec 2024 | Wind |
| Sky Volt | Sky Volt, LLC | Greenfield, IA | 5 GWh | Jul 2012 | Dec 2024 | Wind |
| Red Maple Solar | Terraform Arcadia | Cleveland, MN | 5 GWh | May 2018 | Dec 2024 | Solar |
| Fey Windfarm LLC | Fey Windfarm LLC | Woodstock, MN | 5 GWh | Aug 2003 | Dec 2024 | Wind |
| Forest City Solar | Butter Solar, LLC | Forest City, IA | 5 GWh | Aug 2019 | Dec 2024 | Solar |
| Clam River Dam | Renewable World Energies LLC | Danbury, WI | 5 GWh | Mar 1942 | Dec 2024 | Water |
| Windcurrent Farms LLC | Windcurrent Farms LLC | Woodstock, MN | 5 GWh | Aug 2003 | Dec 2024 | Wind |
| Wind GEM | Wind GEM, LLC | Stuart, IA | 5 GWh | Aug 2015 | Dec 2024 | Wind |
| Montgomery Winsted CSG | Minnesota Solar CSG 4, LLC | Winsted, MN | 5 GWh | Oct 2017 | Dec 2024 | Solar |
| Wright Cuddyer CSG | Minnesota Solar CSG 1, LLC | St. Michael, MN | 5 GWh | Sep 2018 | Dec 2024 | Solar |
| Belmont | Marion Solar LLC | Indianapolis, IN | 5 GWh | Oct 2015 | Dec 2024 | Solar |
| Way Dam | Wisconsin Electric Power Co | Crystal Falls, MI | 5 GWh | Nov 1949 | Dec 2024 | Water |
| White River Medical Center | Entegrity Solar WRMC, LLC | Newport, AR | 5 GWh | Sep 2023 | Dec 2024 | Solar |
| Cumberland Rose | Cumberland Rose Wind Energy, LLC | Orient, IA | 5 GWh | Jul 2012 | Dec 2024 | Wind |
| Antares Community Solar | Antares Community Solar | Tracy, MN | 5 GWh | May 2018 | Dec 2024 | Solar |
| Meadow Ridge | Meadow Ridge Wind Energy, LLC | Greenfield, IA | 5 GWh | Jun 2012 | Dec 2024 | Wind |
| Boeve Windfarm LLC | Boeve Windfarm LLC | Woodstock, MN | 5 GWh | Jul 2003 | Dec 2024 | Wind |
| Shamrock Solar LLC | Greenbacker Renewable Energy Corporation | Black River Falls, WI | 5 GWh | Nov 2021 | Dec 2024 | Solar |
| Lindstrom Solar CSG | National Grid Renewables | Lindstrom, MN | 5 GWh | Mar 2018 | Dec 2024 | Solar |
| Greenfield Wind | Greenfield Wind Power, LLC | Greenfield, IA | 5 GWh | Jul 2012 | Dec 2024 | Wind |
| Tell City Solar Park | Indiana Municipal Power Agency | Tell City, IN | 5 GWh | Jun 2020 | Dec 2024 | Solar |
| Peru 3 | Indiana Municipal Power Agency | Peru, IN | 5 GWh | Sep 2022 | Dec 2024 | Solar |
| Claude Vandyke | Wolverine Power Supply Coop | Dorr, MI | 5 GWh | Dec 1966 | Dec 2024 | Natural Gas |
| South Fond Du Lac | Wisconsin Power & Light Co | Fond du Lac, WI | 5 GWh | Apr 1993 | Dec 2024 | Natural Gas : 98.0% Distillate Fuel Oil : 2.0% |
| Nautilus Winsted Solar (CSG) | Nautilus Solar Solutions | Winsted, MN | 5 GWh | Mar 2019 | Sep 2025 | Solar |
| Custer Energy Center | Manitowoc Public Utilities | Manitowoc, WI | 6 GWh | May 1999 | Dec 2024 | Natural Gas |
| Kramer Solar CSG | National Grid Renewables | Hector, MN | 6 GWh | Nov 2017 | Dec 2024 | Solar |
| Johnson County Hills Solar | MidAmerican Energy Co | Iowa City, IA | 6 GWh | Dec 2021 | Dec 2024 | Solar |
| Stiles | Oconto Electric Cooperative | Oconto Falls, WI | 6 GWh | Feb 1949 | Dec 2024 | Water |
| Osage (IA) | City of Osage - (IA) | Osage, IA | 6 GWh | Aug 1963 | Dec 2024 | Wind : 81.2% Solar : 18.8% |
| Welcome Wind Turbine | Federated Rural Electric Assn | Welcome, MN | 6 GWh | Apr 2008 | Sep 2024 | Wind |
| Grand Casino Hinckley Solar | DG Central 1, LLC | Hinckley, MN | 6 GWh | Apr 2022 | Dec 2024 | Solar |
| Arpin Dam | Renewable World Energies LLC | Radisson, WI | 6 GWh | Aug 1971 | Dec 2024 | Water |
| Anoka County MN CONX | SoCore Energy LLC | Ramsey, MN | 6 GWh | Sep 2018 | Dec 2024 | Solar |
| Rockton | Eagle Creek Renewable Energy, LLC | Rockton, IL | 6 GWh | Dec 1928 | Dec 2024 | Water |
| Davenport Water Pollution Control Plant | Davenport City of | Davenport, IA | 6 GWh | Apr 1995 | Dec 2024 | Other Biomass Gas : 90.0% Natural Gas : 10.0% |
| Fontanelle | Forward Fontanelle Power, LLC | Fontanelle, IA | 6 GWh | Jul 2012 | Dec 2024 | Wind |
| Rhinelander Mill | Ahlstrom-Munksjo | Rhinelander, WI | 6 GWh | Nov 1917 | Sep 2025 | Water |
| Empire Solar | Cypress Creek Renewables | Farmington, MN | 6 GWh | Nov 2016 | Dec 2024 | Solar |
| Barron Solar Array | AEP Onsite Partners, LLC | Barron, WI | 6 GWh | Jul 2021 | Dec 2024 | Solar |
| Hemlock Falls | Wisconsin Electric Power Co | Crystal Falls, MI | 6 GWh | Jul 1953 | Dec 2024 | Water |
| Traer Wind Project | City of Traer - (IA) | Traer, IA | 6 GWh | Sep 2010 | Dec 2024 | Wind |
| Gibbon Solar | Green Street Power Partners | Gibbon, MN | 6 GWh | May 2019 | Dec 2024 | Solar |
| WrightSun CSG, LLC | Cypress Creek Renewables | St. Michael, MN | 6 GWh | Dec 2017 | Dec 2024 | Solar |
| Northeast (MI) | DTE Electric Company | Warren, MI | 6 GWh | Apr 1966 | Dec 2024 | Natural Gas : 84.7% Distillate Fuel Oil : 15.3% |
| Lemonweir (Oak 1) | Greenbacker Renewable Energy Corporation | Mauston, WI | 6 GWh | Nov 2023 | Dec 2024 | Solar |
| Waterloo Solar (IA) | MidAmerican Energy Co | Waterloo, IA | 6 GWh | Feb 2022 | Dec 2024 | Solar |
| Pine Island Solar CSG | Pine Island Holdco, LLC | Pine Island, MN | 6 GWh | Jan 2017 | 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 |