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 | Mar 2026 |
| Annual Generation | 659.4 TWh |
| Power Plants | 2,831 |
| Utilities | 1,296 |
| Ranked #2 out of 65 in terms of net annual generation | |
| Ranked #2 out of 54 in terms of annual generation from natural gas | |
| Power Plant Types | Natural Gas | 36.2% Coal | 28.4% Wind | 14.7% Nuclear | 13.9% Solar | 4.8% Water | 1.5% 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 |
|---|---|---|---|---|---|---|
| Michelangelo Wind 4 LLC | Michelangelo Wind 4 LLC | Ames, IA | 10 GWh | Nov 2016 | Dec 2024 | Wind |
| Iowa State University | Iowa State University | Ames, IA | 81 GWh | Sep 1960 | Dec 2025 | Natural Gas |
| Ames Electric Services Power Plant | City of Ames - (IA) | Ames, IA | 306 GWh | Apr 1968 | Dec 2024 | Natural Gas : 90.9% Other Biomass Solids : 9.1% |
| Ames GT | City of Ames - (IA) | Ames, IA | 420 MWh | Apr 1972 | Dec 2024 | Distillate Fuel Oil |
| ISU Customer Hosted 1MW Solar Project | Interstate Power and Light Co | Ames, IA | 2 GWh | Apr 2024 | Dec 2024 | Solar |
| IA - City of Ames - Airport Road | Forefront Power, LLC | Ames, IA | 3 GWh | Nov 2020 | Dec 2024 | Solar |
| USS Bluff Country Solar CSG | United States Solar Corporation | Altura, MN | 2 GWh | Nov 2020 | Dec 2024 | Solar |
| Winona Garden | Winona Garden LLC | Altura, MN | 2 GWh | Oct 2023 | Dec 2024 | Solar |
| Winona Solar | Winona Solar I LLC | Altura, MN | 2 GWh | Jul 2019 | Dec 2024 | Solar |
| Altamont | City of Altamont - (IL) | Altamont, IL | 56 MWh | Dec 2001 | Dec 2024 | Distillate Fuel Oil |
| Storm Lake 1 | ALLETE Clean Energy | Alta, IA | 85 GWh | Apr 1999 | Dec 2024 | Wind |
| Storm Lake II | ALLETE Clean Energy | Alta, IA | 114 GWh | Mar 1999 | Dec 2024 | Wind |
| Alsey | Prairie Power, Inc | Alsey, IL | 39 GWh | May 1999 | Dec 2024 | Natural Gas |
| Alpena Cement Plant | Lafarge Corp | Alpena, MI | 175 GWh | Dec 1951 | Dec 2025 | Petroleum Coke : 85.0% Natural Gas : 15.0% |
| Decorative Panels Intl | Decorative Panels International, Inc. | Alpena, MI | 43 GWh | Oct 1957 | Dec 2023 | Natural Gas : 79.6% Wood/Wood Waste Solids : 20.4% |
| Norway Point Hydropower Project | Eagle Creek Renewable Energy, LLC | Alpena, MI | 15 GWh | Aug 1990 | Dec 2024 | Water |
| Four Mile Hydropower Project | Eagle Creek Renewable Energy, LLC | Alpena, MI | 9 GWh | Aug 1990 | Dec 2024 | Water |
| Ninth Street Hydropower Project | Eagle Creek Renewable Energy, LLC | Alpena, MI | 7 GWh | Aug 1990 | Dec 2024 | Water |
| John P Madgett | Dairyland Power Coop | Alma, WI | 1 TWh | Oct 1979 | Dec 2025 | Subbituminous Coal : 99.7% |
| Pine River Solar Park | DTE Electric Company | Alma, MI | 78 GWh | - | Dec 2025 | Solar |
| Grand Valley Solar Gardens | Consumers Energy Co - (MI) | Allendale, MI | 4 GWh | Mar 2016 | Dec 2025 | Solar |
| Allegan Dam | Consumers Energy Co - (MI) | Allegan, MI | 12 GWh | Dec 1934 | Dec 2024 | Water |
| Alexandria | City of Alexandria - (MN) | Alexandria, MN | 43 MWh | Dec 1947 | Dec 2024 | Distillate Fuel Oil |
| D G Hunter | City of Alexandria - (LA) | Alexandria, LA | 69 GWh | Apr 1965 | Dec 2024 | Natural Gas |
| Leonardo Wind 1 LLC | Leonardo Wind 1 LLC | Alden, IA | 10 GWh | Nov 2016 | Dec 2024 | Wind |
| The Andersons Albion Ethanol LLC | The Andersons Albion Ethanol LLC | Albion, MI | 63 GWh | Jul 2006 | Dec 2024 | Natural Gas |
| River Fork Solar, LLC | River Fork Solar, LLC | Albion, MI | 293 GWh | Sep 2024 | Dec 2025 | Solar |
| Shipsterns Solar, LLC | Shipsterns Solar, LLC | Albion, MI | 35 GWh | Sep 2023 | Dec 2024 | Solar |
| REG Juhl Glenville Wind, LLC | REG Juhl Glenville Wind, LLC | Albert Lea, MN | 9 GWh | Nov 2020 | Dec 2024 | Wind |
| Goose Lake MN DPC-GM | ENGIE Generation North America LLC | Albert Lea, MN | 3 GWh | Jan 2019 | Dec 2024 | Solar |
| FastSun 3 CSG | Altus Power America Management, LLC | Albany, MN | 2 GWh | Nov 2019 | Dec 2024 | Solar |
| Stearns Community Solar One LLC CSG | Madison Energy Holdings LLC | Albany, MN | 2 GWh | Nov 2019 | Dec 2024 | Solar |
| Schwinghamer Project CSG | Schwinghamer Community Solar LLC | Albany, MN | 2 GWh | Nov 2019 | Dec 2024 | Solar |
| Novel Reber Solar CSG | REA Investments, LLC | Albany, MN | 2 GWh | Oct 2019 | Dec 2024 | Solar |
| Albany Solar | Enel Green Power NA, Inc. | Albany, MN | 19 GWh | Nov 2016 | Dec 2024 | Solar |
| Stearns Solar I | Stearns Solar I LLC | Albany, MN | 2 GWh | Aug 2019 | May 2024 | Solar |
| SV CSG AFTON I | SV CSG Afton I, LLC | Afton, MN | 642 MWh | Jun 2024 | Dec 2024 | Solar |
| Novel MNDot Solar CSG | REA Investments, LLC | Afton, MN | 2 GWh | Oct 2020 | Dec 2024 | Solar |
| Adrian Energy Associates LLC | NextEra Renewable Fuels, LLC | Adrian, MI | 8 GWh | Nov 1994 | Dec 2024 | Landfill Gas |
| Blue Elk IV Solar, LLC | Blue Elk IV Solar, LLC | Adrian, MI | 38 GWh | Nov 2023 | Dec 2024 | Solar |
| Adams PV Plant | Adams PV Plant (WI) | Adams, WI | 17 GWh | Jun 2023 | Dec 2024 | Solar |
| Castle Rock | Wisconsin River Power Company | Adams, WI | 92 GWh | Jul 1950 | Dec 2024 | Water |
| Adams Wind Farm | Consolidated Edison Development Inc. | Adams, MN | 20 GWh | Aug 2003 | Dec 2024 | Wind |
| Eclipse Wind Farm | MidAmerican Energy Co | Adair, IA | 832 GWh | Aug 2012 | Dec 2025 | Wind |
| Adair Wind Farm | MidAmerican Energy Co | Adair, IA | 555 GWh | Nov 2008 | Dec 2024 | Wind |
| Morning Light Wind Farm | MidAmerican Energy Co | Adair, IA | 413 GWh | Sep 2012 | Dec 2024 | Wind |
| Ada Dam | Eagle Creek Renewable Energy, LLC | Ada, MI | 2 GWh | Feb 1984 | Dec 2024 | Water |
| Ada Cogeneration LP | Ada Cogeneration LLC | Ada, MI | 158 GWh | Sep 1990 | Dec 2024 | Natural Gas |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #60 | Alcoa Power Generating, Inc. - Yadkin Division | 610.0 GWh | 4 |
| #27 | Associated Electric Cooperative, Inc. | 24.1 TWh | 47 |
| #13 | Duke Energy Carolinas | 112.4 TWh | 565 |
| #52 | Duke Energy Progress West | 4.3 TWh | 10 |
| #23 | Louisville Gas and Electric Company and Kentucky Utilities Company | 34.3 TWh | 25 |
| #1 | PJM Interconnection, LLC | 879.0 TWh | 2,465 |
| #6 | Southern Company Services, Inc. - Trans | 250.9 TWh | 417 |
| #5 | Southwest Power Pool | 300.1 TWh | 835 |
| #51 | Southwestern Power Administration | 4.8 TWh | 34 |
| #9 | Tennessee Valley Authority | 162.4 TWh | 204 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 879.0 TWh | 2,465 |
| #2 | Midcontinent Independent System Operator, Inc. | 659.4 TWh | 2,831 |
| #3 | Electric Reliability Council of Texas, Inc. | 484.9 TWh | 1,313 |
| #5 | Southwest Power Pool | 300.1 TWh | 835 |
| #6 | Southern Company Services, Inc. - Trans | 250.9 TWh | 417 |
| #7 | California Independent System Operator | 179.9 TWh | 2,075 |
| #9 | Tennessee Valley Authority | 162.4 TWh | 204 |
| #10 | Florida Power & Light Co. | 150.5 TWh | 187 |
| #12 | New York Independent System Operator | 134.0 TWh | 1,211 |
| #13 | Duke Energy Carolinas | 112.4 TWh | 565 |