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 | Oct 2026 |
| Annual Generation | 677.7 TWh |
| Power Plants | 3,095 |
| Utilities | 1,372 |
| 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 | 37.1% Coal | 26.2% Wind | 15% Nuclear | 13.8% Solar | 6.1% Water | 1.4% 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 |
|---|---|---|---|---|---|---|
| Freeborn Wind Farm | Northern States Power Co - Minnesota | Glenville, MN | 769 GWh | Apr 2021 | Jul 2026 | Wind |
| Big River Solar | Big River Solar, LLC | Norris City, IL | 316 GWh | Jul 2022 | Jul 2026 | Solar |
| Heartland Divide II | Heartland Divide II | Audubon, IA | 770 GWh | Feb 2022 | Jul 2026 | Wind |
| Sac County Wind, LLC | Sac County Wind | Sac City, IA | 323 GWh | Nov 2021 | Jul 2026 | Wind |
| Plymouth Wind | MidAmerican Energy Co | Remsen, IA | 759 GWh | Dec 2021 | Jul 2026 | Wind |
| Holliday Creek Solar | MidAmerican Energy Co | Fort Dodge, IA | 206 GWh | Jun 2022 | Jul 2026 | Solar |
| Arbor Hill Solar | MidAmerican Energy Co | Greenfield, IA | 46 GWh | Dec 2021 | Jul 2026 | Solar |
| Calhoun Solar | Invenergy Services LLC | Battle Creek, MI | 367 GWh | Nov 2022 | Jul 2026 | Solar |
| Cassville Solar | Wisconsin Power & Light Co | Cassville, WI | 100 GWh | Nov 2023 | Jul 2026 | Solar |
| Springfield Solar (WI) | Wisconsin Power & Light Co | Lomira, WI | 208 GWh | Nov 2023 | Jul 2026 | Solar |
| Albany Solar (WI) | Wisconsin Power & Light Co | Broadhead, WI | 100 GWh | Nov 2023 | Jul 2026 | Solar |
| Paddock Solar | Wisconsin Power & Light Co | Beloit, WI | 135 GWh | Oct 2023 | Jul 2026 | Solar |
| Wautoma Solar | Wisconsin Power & Light Co | Wautoma, WI | 192 GWh | Nov 2023 | Jul 2026 | Solar |
| Beaver Dam Solar | Wisconsin Power & Light Co | Dodge, WI | 103 GWh | Nov 2023 | Jul 2026 | Solar |
| Grant County | Wisconsin Power & Light Co | Town of Potosi, WI | 380 GWh | Apr 2024 | Jul 2026 | Solar |
| Onion River | Wisconsin Power & Light Co | Sheboygan Cedar Grove, WI | 262 GWh | Nov 2023 | Jul 2026 | Solar |
| Bear Creek (WI) | Wisconsin Power & Light Co | Lone Rock, WI | 101 GWh | Aug 2022 | Jul 2026 | Solar |
| North Rock | Wisconsin Power & Light Co | Edgerton, WI | 94 GWh | Sep 2022 | Jul 2026 | Solar |
| Wood County | Wisconsin Power & Light Co | Nekoosa, WI | 279 GWh | Nov 2022 | Jul 2026 | Solar |
| Crawfish River | Wisconsin Power & Light Co | Jefferson, WI | 129 GWh | Nov 2023 | Jul 2026 | Solar |
| Oxbow Solar 1 | Lightsource Renewable Energy Asset Management, LLC | New Roads, LA | 510 GWh | Jun 2024 | Jul 2026 | Solar |
| Hoot Lake Solar | Otter Tail Power Co | Fergus Falls, MN | 73 GWh | Jul 2023 | Jul 2026 | Solar |
| Red Barn Energy | Wisconsin Public Service Corp | Montfort, WI | 255 GWh | Mar 2023 | Jul 2026 | Wind |
| Sapphire Sky Wind Energy LLC | Invenergy Services LLC | Farmer City, IL | 967 GWh | Nov 2021 | Jul 2026 | Wind |
| Meridian Wind Park | DTE Electric Company | Merrill, MI | 482 GWh | Mar 2023 | Jul 2026 | Wind |
| Mulligan Solar, LLC | Mulligan Solar | Broadwell, IL | 146 GWh | Jun 2022 | Jul 2026 | Solar |
| Ford County Wind Farm LLC | Ford Ridge | Ford County, IL | 473 GWh | Feb 2022 | Jul 2026 | Wind |
| Ledyard Windpower, LLC | Deriva Energy | Lakota, IA | 649 GWh | Nov 2022 | Jul 2026 | Wind |
| Newton Solar BESS LLC | Vistra Corp | Newton, IL | 58 GWh | - | Jul 2026 | Solar |
| West Memphis Solar Station | Entergy Arkansas LLC | Crawfordsville, AR | 303 GWh | Nov 2024 | Jul 2026 | Solar |
| Big Cypress Solar, LLC | Big Cypress Solar, LLC | Crawfordsville, AR | 410 GWh | Nov 2023 | Jul 2026 | Solar |
| Muskegon Solar | Consumers Energy Co - (MI) | Muskegon, MI | 180 GWh | - | Jul 2026 | Solar |
| Indiana Crossroads Solar Park | Meadow Lake Solar Park | Reynolds, IN | 380 GWh | May 2023 | Jul 2026 | Solar |
| Northern Wind | Northern States Power Co - Minnesota | Lake Wilson, MN | 341 GWh | Dec 2022 | Jul 2026 | Wind |
| Great Pathfinder Wind | Great Pathfinder Wind | Stratford, IA | 726 GWh | Jan 2023 | Jul 2026 | Wind |
| Kossuth County Wind | Kossuth County Wind, LLC | Lu Verne, IA | 276 GWh | Nov 2022 | Jul 2026 | Wind |
| Driver Solar | Entergy Arkansas LLC | Osceola, AR | 374 GWh | Oct 2024 | Jul 2026 | Solar |
| Deerfield Wind Energy 2 | Deerfield Wind Energy 2, LLC | Port Hope, MI | 278 GWh | Feb 2023 | Jul 2026 | Wind |
| Buffalo Ridge Wind | Buffalo Ridge Wind, LLC | Lake Benton, MN | 430 GWh | Nov 2022 | Jul 2026 | Wind |
| Walleye Wind | Walleye Wind, LLC | Beaver Creek, MN | 457 GWh | Nov 2022 | Jul 2026 | Wind |
| Paris Solar | Wisconsin Electric Power Co | Union Grove, WI | 294 GWh | Nov 2024 | Jul 2026 | Solar |
| Prairie Ronde Solar Farm | Lightsource Renewable Energy Asset Management, LLC | Opelousas, LA | 244 GWh | Oct 2024 | Jul 2026 | Solar |
| Delta Wind Farm (MS) | AES Clean Energy | Dundee, MS | 531 GWh | Mar 2024 | Jul 2026 | Wind |
| Moraine Sands Wind Power | Moraine Sands Wind Power, LLC | Mason City, IL | 574 GWh | Nov 2023 | Jul 2026 | Wind |
| Elizabeth Solar Plant | Horus Louisiana 1, LLC | Pitkin, LA | 276 GWh | Jul 2024 | Jul 2026 | Solar |
| Newport Solar Project | Newport Solar, LLC | Newport, AR | 352 GWh | Sep 2023 | Jul 2026 | Solar |
| Crooked Lake Solar, LLC | Crooked Lake Solar, LLC | Blytheville, AR | 388 GWh | Apr 2024 | Jul 2026 | Solar |
| Maple Flats | Invenergy Services LLC | Louisville, IL | 519 GWh | Oct 2024 | Jul 2026 | Solar |
| Heartland Farms | Consumers Energy Co - (MI) | Middleton, MI | 464 GWh | Mar 2024 | Jul 2026 | Wind |
| Oak Ridge Solar | AES Clean Energy | Oak Ridge, LA | 420 GWh | Nov 2023 | Jul 2026 | Solar |
| Pearl River Solar Park LLC | Pearl River Solar Park, LLC | Morton, MS | 423 GWh | Jun 2024 | Jul 2026 | Solar |
| Ragsdale Solar LLC | Ragsdale Solar, LLC | Canton, MS | 239 GWh | Oct 2024 | Jul 2026 | Solar |
| Speedway Solar, LLC | Speedway Solar, LLC | Morrison Town, IN | 388 GWh | May 2025 | Jul 2026 | Solar |
| Woodruff County Solar | Arkansas Electric Coop Corp | Augusta, AR | 175 GWh | Sep 2024 | Jul 2026 | Solar |
| Wildflower Solar, LLC (MS) | Deriva Energy | DeSoto, MS | 197 GWh | Apr 2024 | Jul 2026 | Solar |
| Cereal City Solar, LLC | Cereal City Solar, LLC | Battle Creek, MI | 204 GWh | Nov 2023 | Jul 2026 | Solar |
| Harvest Gold Solar | Harvest Gold Solar Power, LLC | Indianola, MS | 197 GWh | Jul 2024 | Jul 2026 | Solar |
| Double Back Diamond | Double Back Diamond Solar Power, LLC | Virden, IL | 1 TWh | Oct 2024 | Jul 2026 | Solar |
| Prairie Mist Solar | Prairie Mist Solar Project, LLC | Montrose, AR | 229 GWh | Aug 2024 | Jul 2026 | Solar |
| Altona Solar, LLC | Birch Creek Power, LLC | Centralia, MO | 67 GWh | Jul 2024 | Jul 2026 | Solar |
| Envoy Solar, LLC | Birch Creek Power, LLC | Mexico, MO | 110 GWh | Jan 2025 | Jul 2026 | Solar |
| Richland Township Solar, LLC | Birch Creek Power, LLC | Washburn, IL | 80 GWh | Dec 2024 | Jul 2026 | Solar |
| Earp Solar, LLC | Birch Creek Power, LLC | Monmouth, IL | 78 GWh | Mar 2024 | Jul 2026 | Solar |
| Kimmel Road Solar, LLC | Birch Creek Power, LLC | Du Quoin, IL | 114 GWh | Sep 2024 | Jul 2026 | Solar |
| Salt Creek Township Solar, LLC | Birch Creek Power, LLC | Mason City, IL | 117 GWh | Dec 2024 | Jul 2026 | Solar |
| Dunns Bridge I Solar | Dunns Bridge Solar Center LLC | Wheatfield, IN | 421 GWh | May 2023 | Jul 2026 | Solar |
| Long Lake Solar, LLC | Long Lake Solar, LLC | West Helena, AR | 490 GWh | Mar 2025 | Jul 2026 | Solar |
| Chickasaw Wind Farm | MidAmerican Energy Co | New Hampton, IA | 640 GWh | Nov 2023 | Jul 2026 | Wind |
| Sterlington Solar | Entergy Louisiana LLC | Sterlington, LA | 60 GWh | - | Jul 2026 | Solar |
| Winfield Solar | Winfield Solar I, LLC | Winfield, MO | 289 GWh | Apr 2025 | Jul 2026 | Solar |
| Branch Solar Project | Branch Solar, LLC | Coldwater, MI | 83 GWh | - | Jul 2026 | Solar |
| Blue Bird Solar, LLC | Blue Bird Solar, LLC | Warrenton, MO | 327 GWh | Nov 2024 | Jul 2026 | Solar |
| Genesee Solar Project | Genesee Solar Energy, LLC | Flint, MI | 42 GWh | Nov 2025 | Jul 2026 | Solar |
| Delta's Edge Solar | Cubico USA, LLC | Greenwood, MS | 163 GWh | Oct 2023 | Jul 2026 | Solar |
| Posey Solar | Southern Indiana Gas & Elec Co | Mount Vernon, IN | 405 GWh | Apr 2025 | Jul 2026 | Solar |
| Prairie Creek Solar | Sol Systems | Jacksonville, IL | 59 GWh | Oct 2023 | Jul 2026 | Solar |
| Indiana Crossroads Wind Farm II | Indiana Crossroads Wind Farm II LLC | Wolcott, IN | 604 GWh | Nov 2024 | Jul 2026 | Wind |
| Prescott Wind Farm | Prescott Wind Energy LLC | Prescott, IA | 168 GWh | Aug 2024 | Jul 2026 | Wind |
| Umbriel Solar | Umbriel Solar, LLC | Livington, TX | 317 GWh | Sep 2023 | Jul 2026 | Solar |
| Magnolia Power | Magnolia Power Holdings LLC | Plaquemine, LA | 3 TWh | Nov 2025 | Jul 2026 | Natural Gas |
| River Fork Solar, LLC | River Fork Solar, LLC | Albion, MI | 291 GWh | Sep 2024 | Jul 2026 | Solar |
| Quartz Solar, LLC | RWE Clean Energy | Wynne, AR | 293 GWh | Feb 2025 | Jul 2026 | Solar |
| Sunlight Road Solar | Sunlight Road Solar, LLC | Franklinton, LA | 115 GWh | Oct 2024 | Jul 2026 | Solar |
| Forgeview Solar | Forgeview Solar, LLC | Blytheville, AR | 322 GWh | Nov 2025 | Jul 2026 | Solar |
| Flat Fork Solar | Flat Fork Solar, LLC | Wheatley, AR | 444 GWh | Jul 2025 | Jul 2026 | Solar |
| Amite Solar, LLC | Amite Solar, LLC | Roseland, LA | 208 GWh | Feb 2025 | Jul 2026 | Solar |
| Bayou Galion Solar Project | Bayou Galion Solar Project, LLC | Mer Rouge, LA | 208 GWh | Oct 2024 | Jul 2026 | Solar |
| Pleasant Creek Unit 1 | Interstate Power and Light Co | Palo, IA | 98 GWh | Feb 2024 | Jul 2026 | Solar |
| Liberty County Solar Project | Liberty County Solar Project, LLC | Dayton, TX | 245 GWh | Aug 2024 | Jul 2026 | Solar |
| Unbridled Solar | Geronimo Power | Robards, KY | 317 GWh | Feb 2025 | Jul 2026 | Solar |
| Louise Solar | Geronimo Power | Taopi, MN | 92 GWh | Nov 2024 | Jul 2026 | Solar |
| Fillmore County Solar Project | Geronimo Power | Spring Valley, MN | 82 GWh | Nov 2024 | Jul 2026 | Solar |
| Cavalry Solar Hybrid | Cavalry Energy Center LLC | Monon, IN | 367 GWh | Apr 2024 | Jul 2026 | Solar |
| Walnut Bend Solar Station PV | Entergy Arkansas LLC | Moro, AR | 203 GWh | Aug 2024 | Jul 2026 | Solar |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #61 | Alcoa Power Generating, Inc. - Yadkin Division | 433.0 GWh | 4 |
| #26 | Associated Electric Cooperative, Inc. | 22.9 TWh | 47 |
| #13 | Duke Energy Carolinas | 113.4 TWh | 578 |
| #50 | Duke Energy Progress West | 4.6 TWh | 15 |
| #23 | Louisville Gas and Electric Company and Kentucky Utilities Company | 34.2 TWh | 25 |
| #1 | PJM Interconnection, LLC | 890.9 TWh | 2,806 |
| #6 | Southern Company Services, Inc. - Trans | 259.3 TWh | 423 |
| #5 | Southwest Power Pool | 314.5 TWh | 876 |
| #53 | Southwestern Power Administration | 3.5 TWh | 37 |
| #9 | Tennessee Valley Authority | 166.2 TWh | 209 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 890.9 TWh | 2,806 |
| #2 | Midcontinent Independent System Operator, Inc. | 677.7 TWh | 3,095 |
| #3 | Electric Reliability Council of Texas, Inc. | 506.3 TWh | 1,487 |
| #5 | Southwest Power Pool | 314.5 TWh | 876 |
| #6 | Southern Company Services, Inc. - Trans | 259.3 TWh | 423 |
| #7 | California Independent System Operator | 168.7 TWh | 2,170 |
| #9 | Tennessee Valley Authority | 166.2 TWh | 209 |
| #10 | Florida Power & Light Co. | 153.0 TWh | 188 |
| #12 | New York Independent System Operator | 134.1 TWh | 1,334 |
| #13 | Duke Energy Carolinas | 113.4 TWh | 578 |