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 |
|---|---|---|---|---|---|---|
| Storm Lake II | ALLETE Clean Energy | Alta, IA | 114 GWh | Mar 1999 | Dec 2024 | Wind |
| Odell Wind Farm | Algonquin Power Co | Mountain Lake, MN | 773 GWh | Jun 2016 | Dec 2024 | Wind |
| Alden Road Harvard Solar 1 | Alden Road Harvard Solar 1, LLC | Harvard, IL | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| Air Products Port Arthur | Air Products LLC | Port Arthur, TX | 998 GWh | Oct 2000 | Dec 2024 | Natural Gas : 92.8% Other Gas : 7.2% |
| Geismar Cogen | Air Liquide Large Industries U S LP | Geismar, LA | 586 GWh | Dec 1999 | Dec 2024 | Natural Gas |
| Mosinee Mill | Ahlstrom-Munksjo NA Specialty Solutions, LLC | Mosinee, WI | 118 GWh | Jun 1916 | Dec 2025 | Black Liquor : 51.4% Bituminous Coal : 14.4% Water : 12.5% Natural Gas : 12.1% Wood/Wood Waste Solids : 6.3% Residual Fuel Oil : 1.7% Sludge Waste : 1.6% |
| Rhinelander Mill | Ahlstrom-Munksjo | Rhinelander, WI | 6 GWh | Nov 1917 | Dec 2025 | Water |
| Agriwind | Agriwind Holdings, LLC | Tiskilwa, IL | 13 GWh | Jun 2007 | Dec 2024 | Wind |
| Agrilectric Power Partners Ltd | Agrilectric Power Partners Ltd | Lake Charles, LA | 79 GWh | Jun 1984 | Dec 2024 | Agricultural By-Products : 98.9% Natural Gas : 1.1% |
| Warrick | AGC Division of APGI Inc | Newburgh, IN | 3 TWh | Mar 1960 | Dec 2025 | Bituminous Coal : 98.3% Natural Gas : 1.7% |
| Harding Street | AES Indiana | Indianapolis, IN | 3 TWh | May 1958 | Dec 2025 | Natural Gas |
| Eagle Valley (IN) | AES Indiana | Martinsville, IN | 6 TWh | Nov 1951 | Dec 2025 | Natural Gas |
| AES Petersburg | AES Indiana | Petersburg, IN | 5 TWh | May 1967 | Dec 2025 | Bituminous Coal : 99.8% |
| Hoosier Wind Project LLC | AES Indiana | Goodland, IN | 208 GWh | Oct 2009 | Dec 2023 | Wind |
| Georgetown | AES Indiana | Indianapolis, IN | 466 GWh | May 2000 | Dec 2024 | Natural Gas |
| Hobart Solar, LLC | AES Distributed Energy | Hobart, IN | 215 MWh | Oct 2012 | Nov 2024 | Solar |
| Waterloo Solar, LLC | AES Distributed Energy | Waterloo, IN | 592 MWh | Dec 2011 | Dec 2024 | Solar |
| Valparaiso Solar, LLC | AES Distributed Energy | Valparaiso, IN | 1 GWh | Nov 2012 | Sep 2024 | Solar |
| AES Belleville Solar LLC | AES Distributed Energy | Belleville, IL | 13 GWh | Aug 2021 | Nov 2024 | Solar |
| Pullman Solar, LLC | AES Distributed Energy | Lee Township, MI | 38 GWh | Nov 2022 | Dec 2024 | Solar |
| Letts Creek Solar, LLC | AES Distributed Energy | Grass Lake, MI | 28 GWh | Nov 2022 | Dec 2024 | Solar |
| Cement City Solar, LLC | AES Distributed Energy | Cement City, MI | 37 GWh | Dec 2022 | Dec 2024 | Solar |
| Morris Solar | AES Clean Energy | Kirksville, MO | 238 GWh | - | Dec 2025 | Solar |
| Oak Ridge Solar | AES Clean Energy | Oak Ridge, LA | 410 GWh | Nov 2023 | Dec 2025 | Solar |
| Delta Wind Farm (MS) | AES Clean Energy | Dundee, MS | 500 GWh | Mar 2024 | Dec 2025 | Wind |
| Calhoun County Solar Project | AES Clean Energy | Sheridan Township, MI | 217 GWh | - | Dec 2025 | Solar |
| Bloomfield Municipal Utilities Solar | AEP Onsite Partners, LLC | Bloomfield, IA | 2 GWh | Mar 2019 | Dec 2024 | Solar |
| Galesburg Solar Array | AEP Onsite Partners, LLC | Oquawka, IL | 3 GWh | Feb 2020 | Dec 2024 | Solar |
| Porter Way Community Solar Garden | AEP Onsite Partners, LLC | Waconia, MN | 5 GWh | Jan 2018 | Dec 2025 | Solar |
| Sherburne Community Solar | AEP Onsite Partners, LLC | Clear Lake, MN | 8 GWh | Feb 2018 | Dec 2025 | Solar |
| Lady Slipper Solar Array CSG | AEP Onsite Partners, LLC | Red Wing, MN | 6 GWh | Sep 2019 | Dec 2024 | Solar |
| Barron Solar Array | AEP Onsite Partners, LLC | Barron, WI | 6 GWh | Jul 2021 | Dec 2024 | Solar |
| Spooner Solar Array | AEP Onsite Partners, LLC | Spooner, WI | 4 GWh | May 2019 | Dec 2024 | Solar |
| Brainerd Airport | AEP Onsite Partners, LLC | Brainerd, MN | 10 GWh | Nov 2022 | Dec 2024 | Solar |
| Rice Lake Solar Array | AEP Onsite Partners, LLC | Rice Lake, WI | 7 GWh | May 2019 | Dec 2024 | Solar |
| Lemond Solar | Adapture Renewables, Inc. | Owatonna, MN | 9 GWh | May 2017 | Dec 2024 | Solar |
| Adams PV Plant | Adams PV Plant (WI) | Adams, WI | 17 GWh | Jun 2023 | Dec 2024 | Solar |
| Brown County Wind Turbine | Adams Electric Cooperative | Mount Sterling, IL | 1 GWh | Aug 2011 | Apr 2024 | Wind |
| Ada Cogeneration LP | Ada Cogeneration LLC | Ada, MI | 158 GWh | Sep 1990 | Dec 2024 | Natural Gas |
| ADA Carbon Solutions Red River | ADA Carbon Solutions (Red River), LLC | Coushatta, LA | 101 GWh | Jan 2011 | Dec 2025 | Waste Heat |
| Apple Canyon Lake Solar | ACM Solar, LLC. | Apple River, IL | 3 GWh | Nov 2020 | Dec 2024 | Solar |
| Tatanka Wind Power LLC | Acciona Wind Energy USA LLC | Ashley, ND | 476 GWh | Dec 2007 | Dec 2025 | Wind |
| Velva Windfarm LLC | Acciona Wind Energy USA LLC | Velva, ND | 25 GWh | Nov 2005 | Dec 2024 | Wind |
| Anchor Wind, LLC | Acciona Energy USA Global, LLC | Mechanicsville, IA | 6 GWh | Sep 2012 | May 2024 | Wind |
| Briscoe 2A | 7th Road Solar 2, LLC (Briscoe 2A) | Lostant, IL | 5 GWh | Jan 2023 | Dec 2024 | Solar |
| Briscoe 1A | 7th Road Solar 1, LLC (Briscoe 1A) | Tonica, IL | 4 GWh | Jan 2023 | Dec 2024 | Solar |
| 2662 Freeport Solar 1 CSG | 2662 Freeport Solar 1, LLC | Freeport, IL | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| 13 Mile Solar, LLC | 13 Mile Solar, LLC | Battle Creek, MI | 4 GWh | Nov 2020 | Dec 2024 | Solar |
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 |