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 |
|---|---|---|---|---|---|---|
| Petit Jean | Today's Power, Inc. | Clinton, AR | 2 GWh | Nov 2023 | Dec 2025 | Solar |
| SAU Tech | Today's Power, Inc. | Bearden, AR | 2 GWh | Jun 2019 | Dec 2025 | Solar |
| South Central Electric Cooperative | Today's Power, Inc. | Arkadelphia, AR | 2 GWh | Jul 2019 | Dec 2025 | Solar |
| Star City School District | Today's Power, Inc. | Star City, AR | 2 GWh | Aug 2021 | Dec 2025 | Solar |
| Veolia (Gum Springs) | Today's Power, Inc. | Arkadelphia, AR | 10 GWh | Jul 2024 | Dec 2025 | Solar |
| Woodruff Electric Cooperative | Today's Power, Inc. | Forrest City, AR | 2 GWh | Apr 2019 | Dec 2025 | Solar |
| Zeuber | Today's Power, Inc. | Little Rock, AR | 7 GWh | Nov 2023 | Dec 2025 | Solar |
| City of Peru Hydro-Electric Generating S | City of Peru - (IL) | Utica, IL | 17 GWh | Aug 1996 | Dec 2025 | Water |
| City of Peru Rail Generating Station | City of Peru - (IL) | Peru, IL | 53 MWh | Aug 2011 | Dec 2025 | Distillate Fuel Oil |
| City of Peru Water Street Generating Sta | City of Peru - (IL) | Peru, IL | 33 MWh | Sep 1968 | Dec 2025 | Jet Fuel |
| USS Origami Solar | USS Origami Solar LLC | Fulton, IL | 1 GWh | Sep 2025 | Dec 2025 | Solar |
| USS Cattail Solar | USS Cattail Solar LLC | Fulton, IL | 1 GWh | Jul 2025 | Dec 2025 | Solar |
| USS Ducks Solar CSG | USS Ducks Solar LLC | Oregon, IL | 9 MWh | Oct 2025 | Dec 2025 | Solar |
| Franklin CSG 1 | Franklin CSG 1 LLC | Franklin, MN | 913 MWh | Jun 2025 | Dec 2025 | Solar |
| Bavaria Solar LLC | Bavaria Solar LLC | Lake Wilson, MN | 845 MWh | Jun 2025 | Dec 2025 | Solar |
| NL IL - Kendall | Newark Road Kendall Solar 1, LLC | Newark, IL | 4 GWh | Nov 2024 | Dec 2025 | Solar |
| SAE Taylorville IL S1 | SolAmerica Energy, LLC | Taylorville, IL | 2 GWh | Apr 2025 | Dec 2025 | Solar |
| USS University Park Solar | United States Solar Corporation | University Park, IL | 3 GWh | Apr 2025 | Dec 2025 | Solar |
| SAE Paris IL S1 | SolAmerica Energy, LLC | Paris, IL | 2 GWh | May 2025 | Dec 2025 | Solar |
| Macon County IL S1 | SolAmerica Energy, LLC | Decatur, IL | 316 MWh | Sep 2025 | Dec 2025 | Solar |
| Peoria County IL S2 | SolAmerica Energy, LLC | Peoria, IL | 2 GWh | May 2025 | Dec 2025 | Solar |
| Tazewell County IL S1 | SolAmerica Energy, LLC | Delavan, IL | 386 MWh | Sep 2025 | Dec 2025 | Solar |
| Richland Township Solar II, LLC | Birch Creek Power, LLC | Washburn, IL | 5 GWh | Aug 2025 | Dec 2025 | Solar |
| Illinois PV Knox 3A | SoCore Energy LLC | Galesburg, IL | 3 GWh | Nov 2024 | Dec 2025 | Solar |
| Illinois PV Knox 3B | SoCore Energy LLC | Galesburg, IL | 3 GWh | Nov 2024 | Dec 2025 | Solar |
| Clinton Solar 2 | Pivot Energy | Centralia, IL | 4 GWh | Dec 2024 | Dec 2025 | Solar |
| Marion Solar 2 | Pivot Energy | Sandoval, IL | 2 GWh | Dec 2024 | Dec 2025 | Solar |
| Edgar Solar 1 | Pivot Energy | Paris, IL | 5 GWh | Feb 2025 | Dec 2025 | Solar |
| LaSalle Solar 1 | Pivot Energy | Ransom, IL | 2 GWh | Apr 2025 | Dec 2025 | Solar |
| Clinton Solar 4b | Pivot Energy | Carlyle, IL | 2 GWh | May 2025 | Dec 2025 | Solar |
| Clinton Solar 2b | Pivot Energy | Centralia, IL | 4 GWh | Oct 2024 | Dec 2025 | Solar |
| Windshare LLC | Greenbacker Renewable Energy Corporation | Chandler, MN | 6 GWh | Feb 2006 | Dec 2025 | Wind |
| St. Clair Solar 5 | Pivot Energy | Lebanon, IL | 2 GWh | Jun 2025 | Dec 2025 | Solar |
| Bureau Solar 1 | Pivot Energy | Princeton, IL | 2 GWh | Aug 2025 | Dec 2025 | Solar |
| LaSalle Solar 6 | Pivot Energy | Ottawa, IL | 582 MWh | Oct 2025 | Dec 2025 | Solar |
| Peoria Solar 3 | Pivot Energy | Dunlap, IL | 219 MWh | Nov 2025 | Dec 2025 | Solar |
| MN CSG 2019-113 | MN CSG 2019-113 LLC | Montevideo, MN | 237 MWh | Sep 2025 | Dec 2025 | Solar |
| Goldenrod (IL) | Generate Capital | Viola, IL | 6 GWh | Jul 2025 | Dec 2025 | Solar |
| Anacott | Generate Capital | Hillsboro, IL | 2 GWh | Sep 2025 | Dec 2025 | Solar |
| DIVOCSG 11 - Sherburne | Madison Energy Investments LLC | Clear Lake, MN | 713 MWh | May 2024 | Dec 2025 | Solar |
| Novel Stumpf 1 Solar CSG | Novel Stumpf 1 Solar LLC | Red Wing, MN | 60 MWh | Nov 2025 | Dec 2025 | Solar |
| SV CSG Gander Farms 1 A | SV CSG Gander Farms 1 A, LLC | Carterville, IL | 188 MWh | Oct 2025 | Dec 2025 | Solar |
| SAE Ottawa IL | SolAmerica Energy, LLC | Ottawa, IL | 225 MWh | Aug 2025 | Dec 2025 | Solar |
| Rocky Mountain Elk Solar Community Solar | Rocky Mountain Elk Solar, LLC | Sheffield, IL | 108 MWh | Nov 2025 | Dec 2025 | Solar |
| Buckheart Creek Solar I Community Solar | Buckheart Creek Solar 1, LLC | Canton, IL | 37 MWh | Nov 2025 | Dec 2025 | Solar |
| REG Mason City Solar | REG Mason City, LLC | Mason City, IA | 4 GWh | Nov 2024 | Dec 2025 | Solar |
| Enterprise MN - Buscho CSG | Standard Solar | Owatonna, MN | 26 MWh | Nov 2025 | Dec 2025 | Solar |
| Enterprise MN - Ferche CSG | Standard Solar | Paynesville, MN | 35 MWh | Nov 2025 | Dec 2025 | Solar |
| Enterprise MN - Hu's on First CSG | Standard Solar | Northfield, MN | 30 MWh | Nov 2025 | Dec 2025 | Solar |
| NL IL - 1875 North Road CSG | Standard Solar | Pontiac, IL | 3 GWh | Aug 2025 | Dec 2025 | Solar |
| NL IL - Piatt 1 - East CSG | Standard Solar | De Land, IL | 2 GWh | May 2025 | Dec 2025 | Solar |
| NL IL - Piatt 2 - West CSG | Standard Solar | De Land, IL | 1 GWh | May 2025 | Dec 2025 | Solar |
| Tinta Wita 5 MW Solar PV System | Tinta Wita Energy LLC | Welch, MN | 7 GWh | Apr 2024 | Dec 2025 | Solar |
| NE IL - Esmen West | Standard Solar | Pontiac, IL | 2 GWh | Aug 2025 | Dec 2025 | Solar |
| NL IL - Kiwi | Standard Solar | Pinckneyville, IL | 2 GWh | May 2025 | Dec 2025 | Solar |
| South Belleville Solar, LLC | Dimension Energy LLC | Smithton Township, IL | 385 MWh | Oct 2025 | Dec 2025 | Solar |
| Spring Brook Solar WI, LLC | Wisconsin Electric Power Co | Whitewater, WI | 630 MWh | Sep 2025 | Dec 2025 | Solar |
| Rock LakeSolar WI, LLC | Wisconsin Electric Power Co | Waterloo, WI | 318 MWh | Oct 2025 | Dec 2025 | Solar |
| Antigo Solar Partners, LLC | Wisconsin Electric Power Co | Antigo, WI | 9 GWh | Oct 2025 | Dec 2025 | Solar |
| La Grange Solar Partners, LLC | Wisconsin Electric Power Co | Elkhorn, WI | 405 MWh | Oct 2025 | Dec 2025 | Solar |
| Medanos Solar LLC | Dimension Energy LLC | Homer, IL | 96 MWh | Nov 2025 | Dec 2025 | Solar |
| Drummer Creek I Solar LLC | Dimension Energy LLC | Gibson City, IL | 170 MWh | Nov 2025 | Dec 2025 | Solar |
| Bancroft (MN) | OneEnergy, Inc. | Albert Lea, MN | 589 MWh | Sep 2025 | Dec 2025 | Solar |
| Bridge Creek | OneEnergy, Inc. | Augusta, WI | 258 MWh | Oct 2025 | Dec 2025 | Solar |
| Bright Future | OneEnergy, Inc. | Hammond, WI | 361 MWh | Sep 2025 | Dec 2025 | Solar |
| Douglas (IA) | OneEnergy, Inc. | Riceville, IA | 804 MWh | Aug 2025 | Dec 2025 | Solar |
| Elk Mound (PV) | OneEnergy, Inc. | Elk Mound, WI | 653 MWh | Aug 2025 | Dec 2025 | Solar |
| Grand Meadow (PV) | OneEnergy, Inc. | Grand Meadow, MN | 425 MWh | Oct 2025 | Dec 2025 | Solar |
| Greenfield | OneEnergy, Inc. | Coon Valley, WI | 200 MWh | Oct 2025 | Dec 2025 | Solar |
| Hannibal | OneEnergy, Inc. | Gillman, WI | 378 MWh | Sep 2025 | Dec 2025 | Solar |
| Little Cedar | OneEnergy, Inc. | Little Cedar, IA | 65 MWh | Nov 2025 | Dec 2025 | Solar |
| Luck | OneEnergy, Inc. | Luck, WI | 85 MWh | Nov 2025 | Dec 2025 | Solar |
| Next Generation | OneEnergy, Inc. | Woodville, WI | 331 MWh | Sep 2025 | Dec 2025 | Solar |
| Viola | OneEnergy, Inc. | Webster, WI | 65 MWh | Nov 2025 | Dec 2025 | Solar |
| Adams Road Solar | Wisconsin Electric Power Co | Franksville, WI | 6 MWh | Nov 2025 | Dec 2025 | Solar |
| Geranium Solar | Generate Capital | Spring Valley, IL | 148 MWh | Nov 2025 | Dec 2025 | Solar |
| Trenton East Phase 2 | Generate Capital | Trenton, IL | 245 MWh | Oct 2025 | Dec 2025 | Solar |
| Trenton West Phase 2 | Generate Capital | Trenton, IL | 213 MWh | Oct 2025 | Dec 2025 | Solar |
| Rice Lake II | Onsite Partners, LLC | Rice Lake, WI | 5 GWh | Aug 2024 | Dec 2025 | Solar |
| Alverno Hydro Plant | Energen Renewables, LLC | Cheboygan, MI | 3 GWh | Dec 1959 | Dec 2025 | Water |
| Princeton Solar | Altorfer Inc. | Princeton, IL | 904 MWh | Feb 2025 | Dec 2025 | Solar |
| Fort Polk (fka Johnson) - Chaffee East | Onyx Asset Services Group | Fort Polk North, LA | 644 MWh | Oct 2025 | Dec 2025 | Solar |
| Fort Polk (fka Johnson) - Chaffee West | Onyx Asset Services Group | Fort Polk North, LA | 750 MWh | Oct 2025 | Dec 2025 | Solar |
| Marathon Petroleum - Robinson Refinery | Onyx Asset Services Group | Robinson, IL | 5 GWh | May 2025 | Dec 2025 | Solar |
| Toyota Boshoku | Onyx Asset Services Group | Lawrenceville, IL | 5 GWh | Apr 2025 | Dec 2025 | Solar |
| INDY III | Terraform Arcadia | Indianapolis, IN | 3 GWh | Jul 2015 | Dec 2025 | Solar |
| Indy Grocers | Terraform Arcadia | Indianapolis, IN | 1 GWh | May 2015 | Dec 2025 | Solar |
| Twin Falls (WI) | Wisconsin Electric Power Co | Florence, WI | 37 GWh | Jun 2016 | Dec 2025 | Water |
| Alpine Power Plant | Wolverine Power Supply Coop | Elmira, MI | 776 GWh | May 2016 | Dec 2025 | Natural Gas |
| New Castle Solar RES | Hoosier Energy R E C, Inc | New Castle, IN | 2 GWh | Oct 2015 | Dec 2025 | Solar |
| Scotland Solar RES | Hoosier Energy R E C, Inc | Newberry, IN | 1 GWh | Oct 2015 | Dec 2025 | Solar |
| New Haven Solar RES | Hoosier Energy R E C, Inc | Dale, IN | 1 GWh | Aug 2016 | Dec 2025 | Solar |
| Ellettsville Solar RES | Hoosier Energy R E C, Inc | Ellettsville, IN | 1 GWh | Sep 2016 | Dec 2025 | Solar |
| Henryville Solar RES | Hoosier Energy R E C, Inc | Underwood, IN | 1 GWh | Aug 2016 | Dec 2025 | Solar |
| Spring Mill Solar RES | Hoosier Energy R E C, Inc | Mitchell, IN | 1 GWh | Aug 2017 | Dec 2025 | Solar |
| Decatur Co. Solar RES (IN) | Hoosier Energy R E C, Inc | Greensburg, IN | 2 GWh | Aug 2017 | Dec 2025 | Solar |
| Jackson Co. Solar RES | Hoosier Energy R E C, Inc | Columbus, IN | 1 GWh | Aug 2017 | Dec 2025 | Solar |
| Johnson Co. Solar RES | Hoosier Energy R E C, Inc | Trafalgar, IN | 674 MWh | Sep 2016 | Dec 2025 | Solar |
| Portage Solar | Ecos Energy LLC | Valparaiso, IN | 2 GWh | Oct 2012 | Dec 2025 | Solar |
| Middlebury Solar | Ecos Energy LLC | Middlebury, IN | 2 GWh | Oct 2012 | Dec 2025 | 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 |