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 | Nov 2025 |
| Annual Generation | 655.1 TWh |
| Power Plants | 2,831 |
| Utilities | 1,296 |
| Ranked #2 out of 65 in terms of net annual generation | |
| Ranked #2 out of 53 in terms of annual generation from natural gas | |
| Power Plant Types | Natural Gas | 35.7% Coal | 29% Wind | 14.9% Nuclear | 13.9% Solar | 4.5% Water | 1.5% Other Fuel | 0.6% |
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 |
|---|---|---|---|---|---|---|
| Munster Landfill Gas-to-Energy | Town of Munster | Munster, IN | 4 GWh | Oct 2012 | Dec 2024 | Landfill Gas |
| Kleber | Tower Kleber Ltd Partnership | Onaway, MI | 5 GWh | Dec 1924 | Dec 2024 | Water |
| Port Arthur Texas Refinery | Total Petrochemicals USA Inc | Port Arthur, TX | 226 GWh | Jul 1988 | Dec 2024 | Natural Gas : 75.0% Other Gas : 25.0% |
| Tofteland Windfarm LLC | Tofteland Windfarm LLC | Pipestone, MN | 288 MWh | Sep 2003 | Dec 2024 | Wind |
| General Dynamics | Today's Power, Inc. | Hampton, AR | 4 GWh | Oct 2020 | Dec 2024 | Solar |
| Woodruff Electric Cooperative | Today's Power, Inc. | Forrest City, AR | 2 GWh | Apr 2019 | Dec 2024 | Solar |
| Petit Jean | Today's Power, Inc. | Clinton, AR | 2 GWh | Nov 2023 | Dec 2024 | Solar |
| Clay County Electrical Cooperative | Today's Power, Inc. | Corning, AR | 2 GWh | Apr 2020 | Dec 2024 | Solar |
| C&L | Today's Power, Inc. | Star City, AR | 2 GWh | May 2020 | Dec 2024 | Solar |
| Berryville School District Solar | Today's Power, Inc. | Berryville, AR | 2 GWh | Jan 2018 | Dec 2024 | Solar |
| Ashley-Chicot Solar | Today's Power, Inc. | Hamburg, AR | 2 GWh | Jul 2018 | Dec 2024 | Solar |
| Veolia (Gum Springs) | Today's Power, Inc. | Arkadelphia, AR | 3 GWh | Jul 2024 | Dec 2024 | Solar |
| Star City School District | Today's Power, Inc. | Star City, AR | 3 GWh | Aug 2021 | Dec 2024 | Solar |
| South Central Electric Cooperative | Today's Power, Inc. | Arkadelphia, AR | 2 GWh | Jul 2019 | Dec 2024 | Solar |
| SAU Tech | Today's Power, Inc. | Bearden, AR | 2 GWh | Jun 2019 | Dec 2024 | Solar |
| North Arkansas Electric Cooperative | Today's Power, Inc. | Salem, AR | 2 GWh | Apr 2021 | Dec 2024 | Solar |
| NLRED 2MW | Today's Power, Inc. | North Little Rock, AR | 80 MWh | Nov 2024 | Dec 2024 | Solar |
| Craighead Electric Solar One | Today's Power, Inc. | Brookland, AR | 2 GWh | Jul 2018 | Dec 2024 | Solar |
| Farmers Electric Cooperative | Today's Power, Inc. | Newport, AR | 2 GWh | May 2019 | Dec 2024 | Solar |
| Zeuber | Today's Power, Inc. | Little Rock, AR | 7 GWh | Nov 2023 | Dec 2024 | Solar |
| FECC Solar Benton | Today's Power, Inc. | Benton, AR | 967 MWh | Feb 2017 | Oct 2024 | Solar |
| Titlow Garden LLC CSG | Titlow Garden LLC | Gaylord, MN | 2 GWh | Dec 2022 | Dec 2024 | Solar |
| Tilton | Tilton Energy LLC | Tilton, IL | 69 GWh | May 1999 | Dec 2024 | Natural Gas |
| Ubly | Thumb Electric Coop of Mich | Ubly, MI | 12 MWh | May 1938 | Dec 2024 | Distillate Fuel Oil : 63.3% Natural Gas : 36.7% |
| Caro | Thumb Electric Coop of Mich | Caro, MI | 6 MWh | Jul 1949 | Dec 2023 | Distillate Fuel Oil |
| Thomson Reuters Campus Bldg A-D | Thomson Corp | Eagan, MN | 5 GWh | Mar 1999 | Sep 2025 | Distillate Fuel Oil |
| Kaukauna Paper Mill | Thilmany LLC | Kaukauna, WI | 107 GWh | Dec 1950 | Sep 2025 | Natural Gas : 54.2% Black Liquor : 45.8% |
| Sabine River Operations | The Dow Chemical Company | Orange, TX | 3 TWh | Dec 1947 | Sep 2025 | Natural Gas : 99.3% Other Gas : 0.7% |
| The Andersons Albion Ethanol LLC | The Andersons Albion Ethanol LLC | Albion, MI | 63 GWh | Jul 2006 | Dec 2024 | Natural Gas |
| TG Windfarm LLC | TG Windfarm LLC | Pipestone, MN | 288 MWh | Oct 2003 | Dec 2024 | Wind |
| TES Filer City Station | TES Filer City Station LP | Filer City, MI | 316 GWh | Apr 1990 | Sep 2025 | Bituminous Coal : 64.6% Natural Gas : 21.3% Wood/Wood Waste Solids : 14.1% |
| Cornillie | Terraform Arcadia | North Branch, MN | 2 GWh | Jul 2018 | Dec 2024 | Solar |
| Bolduan CSG | Terraform Arcadia | New Richland, MN | 2 GWh | Oct 2018 | Dec 2024 | Solar |
| IND Solar Farm (Phase IIA) | Terraform Arcadia | Indianapolis, IN | 10 GWh | Nov 2014 | Dec 2024 | Solar |
| Lind Solar CSG | Terraform Arcadia | Young America, MN | 8 GWh | Jan 2017 | Dec 2024 | Solar |
| IND Community Solar Farm 1st Phase | Terraform Arcadia | Indianapolis, IN | 14 GWh | Oct 2013 | Dec 2024 | Solar |
| Red Maple Solar | Terraform Arcadia | Cleveland, MN | 5 GWh | May 2018 | Dec 2024 | Solar |
| Guse CSG | Terraform Arcadia | Janesville, MN | 2 GWh | Aug 2018 | Dec 2024 | Solar |
| Red Wing Community Solar | Terraform Arcadia | Red Wing, MN | 8 GWh | Nov 2016 | Dec 2024 | Solar |
| Eichtens Community Solar | Terraform Arcadia | Center, MN | 6 GWh | Nov 2016 | Dec 2024 | Solar |
| Winegar CSG | Terraform Arcadia | Waseca, MN | 2 GWh | Sep 2018 | Dec 2024 | Solar |
| INDY III | Terraform Arcadia | Indianapolis, IN | 3 GWh | Jul 2015 | Dec 2024 | Solar |
| Indy Grocers | Terraform Arcadia | Indianapolis, IN | 1 GWh | May 2015 | Dec 2024 | Solar |
| Huneke II CSG | Terraform Arcadia | Zumbrota, MN | 2 GWh | Aug 2018 | Dec 2024 | Solar |
| Eichtens II CSG | Terraform Arcadia | Winstead, MN | 2 GWh | Aug 2018 | Dec 2024 | Solar |
| Barone CSG | Terraform Arcadia | Winstead, MN | 2 GWh | Sep 2018 | Dec 2024 | Solar |
| Gaylord Container Bogalusa | Temple-Inland Corp | Bogalusa, LA | 439 GWh | May 1979 | Sep 2025 | Black Liquor : 55.5% Wood/Wood Waste Solids : 37.5% Natural Gas : 7.0% |
| Taurus Community Solar | Taurus Community Solar | Montevideo, MN | 6 GWh | Feb 2018 | Dec 2024 | Solar |
| Sagamore Plant Cogeneration | Tate & Lyle Ingredients Americas Inc | Lafayette, IN | 17 GWh | Sep 1984 | Sep 2025 | Natural Gas |
| Tatanka Ridge | Tatanka Ridge LLC | Toronto, SD | 595 GWh | Dec 2020 | Sep 2025 | Wind |
| Grand Gulf | System Energy Resources, Inc | Port Gibson, MS | 11 TWh | Jun 1985 | Sep 2025 | Nuclear |
| Swan Garden | Swan Garden LLC | Villard, MN | 2 GWh | Sep 2021 | Dec 2024 | Solar |
| Svihel Community Solar LLC CSG | Svihel Community Solar LLC | Foley, MN | 2 GWh | Mar 2021 | Dec 2024 | Solar |
| SV CSG Barrass Farms II LL | SV CSG Barrass Farms II LLC | Marion, IL | 4 GWh | Aug 2023 | Dec 2024 | Solar |
| SV CSG AFTON I | SV CSG Afton I, LLC | Afton, MN | 642 MWh | Jun 2024 | Dec 2024 | Solar |
| Pine Bluff Mill | Suzano Packaging LLC | Pine Bluff, AR | 289 GWh | Apr 1958 | Dec 2023 | Black Liquor : 80.1% Natural Gas : 19.9% |
| Surbrook Solar, LLC | Surbrook Solar, LLC | Rives Junction, MI | 3 GWh | Aug 2024 | Dec 2024 | Solar |
| Becker Solar 3 CSG | SunShare Management | St. Michael, MN | 2 GWh | Feb 2019 | Dec 2024 | Solar |
| WakeSun LLC | SunShare Management | Cold Spring, MN | 4 GWh | Dec 2016 | Dec 2024 | Solar |
| BentonSun LLC | SunShare Management | Norwood Young America, MN | 9 GWh | Nov 2016 | Dec 2024 | Solar |
| Becker Solar CSG | SunShare Management | St. Michael, MN | 2 GWh | Feb 2019 | Dec 2024 | Solar |
| Becker Solar 2 CSG | SunShare Management | St. Michael, MN | 2 GWh | Feb 2019 | Dec 2024 | Solar |
| Linden 01 CSG | SunShare Management | Belle Plaine, MN | 2 GWh | Apr 2020 | Dec 2024 | Solar |
| Becker Solar 4 CSG | SunShare Management | St. Michael, MN | 2 GWh | Feb 2019 | Dec 2024 | Solar |
| Linden 02 CSG | SunShare Management | Belle Plaine, MN | 2 GWh | Apr 2020 | Dec 2024 | Solar |
| Linden 03 CSG | SunShare Management | Belle Plaine, MN | 2 GWh | Apr 2020 | Dec 2024 | Solar |
| Becker Solar 5 CSG | SunShare Management | St. Michael, MN | 2 GWh | Feb 2019 | Dec 2024 | Solar |
| Sunrise Community Solar | Sunrise Community Solar | North Branch, MN | 8 GWh | Nov 2016 | Dec 2024 | Solar |
| Sunlight Road Solar | Sunlight Road Solar, LLC | Franklinton, LA | 106 GWh | Oct 2024 | Sep 2025 | Solar |
| Sunflower County | Sunflower County Solar Project, LLC | Ruleville, MS | 143 GWh | Aug 2022 | Sep 2025 | Solar |
| California Ridge Wind Energy LLC | SunEdison LLC | Fithian, IL | 669 GWh | Nov 2012 | Sep 2025 | Wind |
| Sullivan B Community Solar LLC | Sullivan B Community Solar LLC | Macomb, IL | 3 GWh | Nov 2020 | Dec 2024 | Solar |
| Sugar Creek Wind One LLC | Sugar Creek Wind One LLC | TBD, IL | 643 GWh | Oct 2020 | Sep 2025 | Wind |
| Stuttgart Solar | Stuttgart Solar, LLC | Stuttgart, AR | 155 GWh | Dec 2017 | Sep 2025 | Solar |
| Sturgeon Garden | Sturgeon Garden LLC | Goodhue, MN | 2 GWh | Nov 2023 | Dec 2024 | Solar |
| Studenski Community Solar LLC CSG | Studenski Community Solar LLC | Sauk Rapids, MN | 2 GWh | Mar 2021 | Dec 2024 | Solar |
| Strandness Garden | Strandness Garden LLC | Starbuck, MN | 2 GWh | Jan 2020 | Dec 2024 | Solar |
| Straight Garden Solar | Straight Garden LLC | Faribault, MN | 2 GWh | Feb 2020 | Dec 2024 | Solar |
| Stoneheart Solar, LLC | Stoneheart Solar, LLC | Saginaw, MI | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| Stevens Community Medical Center | Stevens Community Medical Center | Morris, MN | 8 MWh | Apr 2004 | Dec 2023 | Distillate Fuel Oil |
| Stearns Solar I | Stearns Solar I LLC | Albany, MN | 2 GWh | Aug 2019 | May 2024 | Solar |
| MNDOT Standby Generation | State of Minnesota Department of Administration | St. Paul, MN | 38 MWh | Jun 1995 | Aug 2025 | Distillate Fuel Oil |
| State Farm | State Farm Insurance | Bloomington, IL | 26 MWh | Sep 1996 | Sep 2025 | Distillate Fuel Oil |
| Star Garden | Star Garden LLC | Starbuck, MN | 2 GWh | Jan 2020 | Dec 2024 | Solar |
| USS Turkey Solar LLC CSG | Standard Solar | Atwater, MN | 2 GWh | Dec 2019 | Dec 2024 | Solar |
| USS Solar Brick | Standard Solar | Standard City, IL | 5 GWh | May 2021 | Dec 2024 | Solar |
| USS Buckaroo Solar LLC CSG | Standard Solar | Glydon, MN | 2 GWh | Sep 2020 | Dec 2024 | Solar |
| USS Solar Way LLC CSG | Standard Solar | Hartland, MN | 2 GWh | Oct 2020 | Dec 2024 | Solar |
| USS Horne South Solar LLC CSG | Standard Solar | Felton, MN | 2 GWh | Sep 2020 | Dec 2024 | Solar |
| USS Horne North Solar LLC CSG | Standard Solar | Felton, MN | 2 GWh | Sep 2020 | Dec 2024 | Solar |
| USS Christoffer Solar LLC CSG | Standard Solar | Montevideo, MN | 2 GWh | Aug 2020 | Dec 2024 | Solar |
| USS Monarch Solar LLC CSG | Standard Solar | Brooten, MN | 2 GWh | Nov 2019 | Dec 2024 | Solar |
| USS Solar Sources LLC CSG | Standard Solar | Scandia, MN | 2 GWh | Sep 2020 | Dec 2024 | Solar |
| USS King 2 CSG | Standard Solar | Waconia, MN | 2 GWh | Jul 2019 | Dec 2024 | Solar |
| USS Centerfield Solar CSG | Standard Solar | Webster, MN | 2 GWh | Oct 2019 | Dec 2024 | Solar |
| USS Sunrise Solar LLC CSG | Standard Solar | Taylors Falls, MN | 1 GWh | May 2020 | Dec 2024 | Solar |
| USS Westeros Solar LLC CSG | Standard Solar | Belle Plaine, MN | 2 GWh | May 2020 | Dec 2024 | Solar |
| USS White Cloud LLC CSG | Standard Solar | St. Cloud, MN | 2 GWh | Oct 2019 | Dec 2024 | Solar |
| USS Haven Solar LLC CSG | Standard Solar | St. Cloud, MN | 2 GWh | Oct 2019 | Dec 2024 | Solar |
| USS Webster Solar CSG | Standard Solar | Webster, MN | 2 GWh | Apr 2019 | Dec 2024 | Solar |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #61 | Alcoa Power Generating, Inc. - Yadkin Division | 696.7 GWh | 4 |
| #27 | Associated Electric Cooperative, Inc. | 23.6 TWh | 47 |
| #13 | Duke Energy Carolinas | 112.5 TWh | 565 |
| #52 | Duke Energy Progress West | 4.3 TWh | 10 |
| #24 | Louisville Gas and Electric Company and Kentucky Utilities Company | 34.4 TWh | 25 |
| #1 | PJM Interconnection, LLC | 870.7 TWh | 2,465 |
| #6 | Southern Company Services, Inc. - Trans | 250.9 TWh | 417 |
| #5 | Southwest Power Pool | 299.9 TWh | 835 |
| #49 | Southwestern Power Administration | 5.2 TWh | 34 |
| #9 | Tennessee Valley Authority | 161.6 TWh | 204 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 870.7 TWh | 2,465 |
| #2 | Midcontinent Independent System Operator, Inc. | 655.1 TWh | 2,831 |
| #4 | Electric Reliability Council of Texas, Inc. | 485.0 TWh | 1,313 |
| #5 | Southwest Power Pool | 299.9 TWh | 835 |
| #6 | Southern Company Services, Inc. - Trans | 250.9 TWh | 417 |
| #7 | California Independent System Operator | 188.0 TWh | 2,075 |
| #9 | Tennessee Valley Authority | 161.6 TWh | 204 |
| #10 | Florida Power & Light Co. | 148.9 TWh | 187 |
| #12 | New York Independent System Operator | 131.6 TWh | 1,211 |
| #13 | Duke Energy Carolinas | 112.5 TWh | 565 |