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 |
|---|---|---|---|---|---|---|
| Elizabeth Solar Plant | Horus Louisiana 1, LLC | Pitkin, LA | 280 GWh | Jul 2024 | Dec 2025 | Solar |
| Newport Solar Project | Newport Solar, LLC | Newport, AR | 356 GWh | Sep 2023 | Dec 2025 | Solar |
| Crooked Lake Solar, LLC | Crooked Lake Solar, LLC | Blytheville, AR | 393 GWh | Apr 2024 | Dec 2025 | Solar |
| Maple Flats | Invenergy Services LLC | Louisville, IL | 493 GWh | Oct 2024 | Dec 2025 | Solar |
| Heartland Farms | Consumers Energy Co - (MI) | Middleton, MI | 470 GWh | Mar 2024 | Dec 2025 | Wind |
| Oak Ridge Solar | AES Clean Energy | Oak Ridge, LA | 410 GWh | Nov 2023 | Dec 2025 | Solar |
| Pearl River Solar Park LLC | Pearl River Solar Park, LLC | Morton, MS | 419 GWh | Jun 2024 | Dec 2025 | Solar |
| Ragsdale Solar LLC | Ragsdale Solar, LLC | Canton, MS | 239 GWh | Oct 2024 | Dec 2025 | Solar |
| Speedway Solar, LLC | Speedway Solar, LLC | Morrison Town, IN | 214 GWh | - | Dec 2025 | Solar |
| Woodruff County Solar | Arkansas Electric Coop Corp | Augusta, AR | 204 GWh | Sep 2024 | Dec 2025 | Solar |
| Wildflower Solar, LLC (MS) | Duke Energy Renewables Services | DeSoto, MS | 201 GWh | Apr 2024 | Dec 2025 | Solar |
| Cereal City Solar, LLC | Cereal City Solar, LLC | Battle Creek, MI | 196 GWh | Nov 2023 | Dec 2025 | Solar |
| Harvest Gold Solar | Harvest Gold Solar Power, LLC | Indianola, MS | 181 GWh | Jul 2024 | Dec 2025 | Solar |
| Double Back Diamond | Double Back Diamond Solar Power, LLC | Virden, IL | 915 GWh | Oct 2024 | Dec 2025 | Solar |
| Prairie Mist Solar | Prairie Mist Solar Project, LLC | Montrose, AR | 232 GWh | Aug 2024 | Dec 2025 | Solar |
| Altona Solar, LLC | Birch Creek Power, LLC | Centralia, MO | 65 GWh | Jul 2024 | Dec 2025 | Solar |
| Envoy Solar, LLC | Birch Creek Power, LLC | Mexico, MO | 95 GWh | - | Dec 2025 | Solar |
| Richland Township Solar, LLC | Birch Creek Power, LLC | Washburn, IL | 75 GWh | - | Dec 2025 | Solar |
| Earp Solar, LLC | Birch Creek Power, LLC | Monmouth, IL | 76 GWh | Mar 2024 | Dec 2025 | Solar |
| Kimmel Road Solar, LLC | Birch Creek Power, LLC | Du Quoin, IL | 102 GWh | Sep 2024 | Dec 2025 | Solar |
| Salt Creek Township Solar, LLC | Birch Creek Power, LLC | Mason City, IL | 104 GWh | - | Dec 2025 | Solar |
| Dunns Bridge I Solar | Dunns Bridge Solar Center LLC | Wheatfield, IN | 508 GWh | May 2023 | Dec 2025 | Solar |
| Long Lake Solar, LLC | Long Lake Solar, LLC | West Helena, AR | 371 GWh | - | Dec 2025 | Solar |
| Chickasaw Wind Farm | MidAmerican Energy Co | New Hampton, IA | 645 GWh | Nov 2023 | Dec 2025 | Wind |
| Winfield Solar | Winfield Solar I, LLC | Winfield, MO | 184 GWh | - | Dec 2025 | Solar |
| Blue Bird Solar, LLC | Blue Bird Solar, LLC | Warrenton, MO | 274 GWh | Nov 2024 | Dec 2025 | Solar |
| Genesee Solar Project | Genesee Solar Energy, LLC | Flint, MI | 1 GWh | - | Dec 2025 | Solar |
| Delta's Edge Solar | Cubico USA, LLC | Greenwood, MS | 114 GWh | Oct 2023 | Dec 2025 | Solar |
| Posey Solar | Southern Indiana Gas & Elec Co | Mount Vernon, IN | 270 GWh | - | Dec 2025 | Solar |
| Prairie Creek Solar | Sol Systems | Jacksonville, IL | 58 GWh | Oct 2023 | Dec 2025 | Solar |
| Indiana Crossroads Wind Farm II | Indiana Crossroads Wind Farm II LLC | Wolcott, IN | 593 GWh | Nov 2024 | Dec 2025 | Wind |
| Prescott Wind Farm | Prescott Wind Energy LLC | Prescott, IA | 142 GWh | Aug 2024 | Dec 2025 | Wind |
| Umbriel Solar | Umbriel Solar, LLC | Livington, TX | 319 GWh | Sep 2023 | Dec 2025 | Solar |
| Magnolia Power | Magnolia Power Holdings LLC | Plaquemine, LA | 100 GWh | - | Dec 2025 | Natural Gas |
| River Fork Solar, LLC | River Fork Solar, LLC | Albion, MI | 293 GWh | Sep 2024 | Dec 2025 | Solar |
| Quartz Solar, LLC | Quartz Solar, LLC | Wynne, AR | 261 GWh | - | Dec 2025 | Solar |
| Sunlight Road Solar | Sunlight Road Solar, LLC | Franklinton, LA | 116 GWh | Oct 2024 | Dec 2025 | Solar |
| Forgeview Solar | Forgeview Solar, LLC | Blytheville, AR | 15 GWh | - | Dec 2025 | Solar |
| Flat Fork Solar | Flat Fork Solar, LLC | Wheatley, AR | 147 GWh | - | Dec 2025 | Solar |
| Amite Solar, LLC | Amite Solar, LLC | Roseland, LA | 177 GWh | - | Dec 2025 | Solar |
| Bayou Galion Solar Project | Bayou Galion Solar Project, LLC | Mer Rouge, LA | 230 GWh | Oct 2024 | Dec 2025 | Solar |
| Pleasant Creek Unit 1 | Interstate Power and Light Co | Palo, IA | 98 GWh | Feb 2024 | Dec 2025 | Solar |
| Liberty County Solar Project | Liberty County Solar Project, LLC | Dayton, TX | 245 GWh | Aug 2024 | Dec 2025 | Solar |
| Unbridled Solar | National Grid Renewables | Robards, KY | 280 GWh | - | Dec 2025 | Solar |
| Louise Solar | National Grid Renewables | Taopi, MN | 93 GWh | Nov 2024 | Dec 2025 | Solar |
| Fillmore County Solar Project | National Grid Renewables | Spring Valley, MN | 83 GWh | Nov 2024 | Dec 2025 | Solar |
| Cavalry Solar Hybrid | Cavalry Energy Center LLC | Monon, IN | 374 GWh | Apr 2024 | Dec 2025 | Solar |
| Walnut Bend Solar Station PV | Walnut Bend Solar Station | Moro, AR | 210 GWh | Aug 2024 | Dec 2025 | 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 |