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 | Jan 2026 |
| Annual Generation | 656.9 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 | 35.4% Coal | 28.9% Wind | 15.1% Nuclear | 14% Solar | 4.6% 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 |
|---|---|---|---|---|---|---|
| Overall Road Station | City of Farmington - (MO) | Farmington, MO | 26 MWh | Feb 2003 | Dec 2024 | Distillate Fuel Oil |
| Elm Street Substation Generators | City of Farmington - (MO) | Farmington, MO | 22 MWh | Sep 2002 | Dec 2024 | Distillate Fuel Oil |
| Walton Street Substation | City of Farmington - (MO) | Farmington, MO | 6 MWh | Dec 2002 | Dec 2024 | Distillate Fuel Oil |
| Farmer City | City of Farmer City - (IL) | Farmer City, IL | 50 MWh | Mar 1951 | Dec 2024 | Distillate Fuel Oil |
| Fairfax | City of Fairfax - (MN) | Fairfax, MN | 2 MWh | Jul 2001 | Dec 2024 | Distillate Fuel Oil |
| Elroy | City of Elroy - (WI) | Elroy, WI | 2 MWh | Apr 1973 | Dec 2024 | Distillate Fuel Oil |
| Elk River City of | City of Elk River | Elk River, MN | 32 MWh | Feb 1948 | Dec 2023 | Distillate Fuel Oil |
| Earlville | City of Earlville - (IA) | Earlville, IA | 7 MWh | Jun 2001 | Dec 2024 | Distillate Fuel Oil |
| Durant | City of Durant - (IA) | Durant, IA | 10 MWh | Jun 1970 | Dec 2024 | Distillate Fuel Oil |
| Dike City Power Plant | City of Dike | Dike, IA | 50 MWh | May 2005 | Dec 2024 | Distillate Fuel Oil |
| Detroit Lakes | City of Detroit Lakes - (MN) | Detroit Lakes, MN | 50 MWh | Jun 1968 | Dec 2024 | Distillate Fuel Oil |
| Dayton (IA) | City of Dayton - (IA) | Dayton, IA | 16 MWh | Sep 2000 | Dec 2024 | Distillate Fuel Oil |
| Cumberland (WI) | City of Cumberland - (WI) | Cumberland, WI | 260 MWh | Jul 1939 | Dec 2024 | Distillate Fuel Oil : 71.5% Natural Gas : 28.5% |
| Crystal Falls | City of Crystal Falls | Crystal Falls, MI | 5 GWh | May 1914 | Dec 2024 | Water |
| Corning | City of Corning - (IA) | Corning, IA | 51 MWh | May 1975 | Dec 2024 | Distillate Fuel Oil |
| Columbia (MO) | City of Columbia - (MO) | Columbia, MO | 22 GWh | Dec 1956 | Dec 2024 | Landfill Gas : 63.9% Natural Gas : 36.1% |
| Columbia Energy Center | City of Columbia - (MO) | Columbia, MO | 13 GWh | May 2001 | Dec 2024 | Natural Gas |
| Casey City of | City of Casey - (IL) | Casey, IL | 61 MWh | Apr 2002 | Dec 2024 | Distillate Fuel Oil |
| Carmi | City of Carmi - (IL) | Carmi, IL | 230 MWh | Nov 1948 | Dec 2024 | Distillate Fuel Oil |
| Carlyle | City of Carlyle - (IL) | Carlyle, IL | 231 MWh | Jul 1964 | Dec 2024 | Distillate Fuel Oil |
| Bushnell | City of Bushnell - (IL) | Bushnell, IL | 49 MWh | May 1940 | Dec 2024 | Distillate Fuel Oil |
| Brooklyn | City of Brooklyn - (IA) | Brooklyn, IA | 18 MWh | Aug 2012 | Dec 2024 | Distillate Fuel Oil |
| Brooklyn City North Plant | City of Brooklyn - (IA) | Brooklyn, IA | 14 MWh | Apr 2002 | Dec 2024 | Distillate Fuel Oil |
| Breese | City of Breese - (IL) | Breese, IL | 263 MWh | Nov 1953 | Dec 2024 | Distillate Fuel Oil |
| Blooming Prairie | City of Blooming Prairie - (MN) | Blooming Prairie, MN | 234 MWh | Apr 1937 | Dec 2024 | Distillate Fuel Oil |
| Benson City of | City of Benson - (MN) | Benson, MN | 54 MWh | Apr 2002 | Dec 2024 | Distillate Fuel Oil |
| Bellevue | City of Bellevue - (IA) | Bellevue, IA | 61 MWh | Jun 1947 | Dec 2024 | Distillate Fuel Oil |
| Henry Station | City of Bay City - (MI) | Bay City, MI | 653 MWh | Apr 1993 | Dec 2024 | Natural Gas : 94.6% Distillate Fuel Oil : 5.4% |
| Water Street Station | City of Bay City - (MI) | Bay City, MI | 239 MWh | Jul 1980 | Dec 2024 | Natural Gas : 86.5% Distillate Fuel Oil : 13.5% |
| Barron | City of Barron - (WI) | Barron, WI | 342 MWh | Jul 1923 | Dec 2024 | Water |
| Argyle | City of Argyle - (WI) | Argyle, WI | 24 MWh | Dec 1928 | Dec 2024 | Water : 87.5% Distillate Fuel Oil : 12.5% |
| Arcadia Electric | City of Arcadia - (WI) | Arcadia, WI | 150 MWh | Dec 1929 | Dec 2024 | Distillate Fuel Oil : 67.3% Natural Gas : 32.7% |
| Anita | City of Anita - (IA) | Anita, IA | 13 MWh | Sep 1939 | Dec 2024 | Distillate Fuel Oil |
| Ames GT | City of Ames - (IA) | Ames, IA | 420 MWh | Apr 1972 | Dec 2024 | Distillate Fuel Oil |
| Ames Electric Services Power Plant | City of Ames - (IA) | Ames, IA | 306 GWh | Apr 1968 | Dec 2024 | Natural Gas : 90.9% Other Biomass Solids : 9.1% |
| Altamont | City of Altamont - (IL) | Altamont, IL | 56 MWh | Dec 2001 | Dec 2024 | Distillate Fuel Oil |
| Alexandria | City of Alexandria - (MN) | Alexandria, MN | 43 MWh | Dec 1947 | Dec 2024 | Distillate Fuel Oil |
| D G Hunter | City of Alexandria - (LA) | Alexandria, LA | 69 GWh | Apr 1965 | Dec 2024 | Natural Gas |
| CC Perry K | Citizens Thermal Energy | Indianapolis, IN | 8 GWh | Dec 1924 | Oct 2025 | Natural Gas |
| CITGO Refinery Powerhouse | CITGO Petroleum Corp | Sulphur, LA | 226 GWh | Dec 1941 | Dec 2024 | Other Gas |
| CII Carbon LLC | CII Carbon LLC | Chalmette, LA | 8 GWh | Dec 1950 | Jun 2024 | Waste Heat |
| Chub Garden Solar | Chub Garden LLC | Northfield, MN | 2 GWh | Feb 2020 | Dec 2024 | Solar |
| Chisago Holdco LLC, CSG | Chisago Holdco LLC | Center City, MN | 5 GWh | Apr 2019 | Dec 2024 | Solar |
| Chisago Community Solar | Chisago Community Solar | Taylor Falls, MN | 7 GWh | Nov 2016 | Dec 2024 | Solar |
| Chicot Solar | Chicot Solar, LLC | Lake Village, AR | 216 GWh | Aug 2020 | Oct 2025 | Solar |
| Jessica Mills LLC | CHI Operations Inc | Hendricks, MN | 4 GWh | Jan 2001 | Dec 2024 | Wind |
| Agassiz Beach LLC | CHI Operations Inc | Averill, MN | 4 GWh | Jan 2001 | Dec 2024 | Wind |
| Florence Hills LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Dec 2000 | Dec 2024 | Wind |
| Hadley Ridge LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Nov 2000 | Dec 2024 | Wind |
| Hope Creek LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Dec 2000 | Dec 2024 | Wind |
| Ruthton Ridge LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Dec 2000 | Dec 2024 | Wind |
| Soliloquoy Ridge LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Dec 2000 | Dec 2024 | Wind |
| Spartan Hills LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Dec 2000 | Dec 2024 | Wind |
| Twin Lake Hills LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Nov 2000 | Dec 2024 | Wind |
| Winters Spawn LLC | CHI Operations Inc | Lake Benton, MN | 5 GWh | Dec 2000 | Dec 2024 | Wind |
| Autumn Hills LLC | CHI Operations Inc | Hendricks, MN | 4 GWh | Jan 2001 | Dec 2024 | Wind |
| Jack River LLC | CHI Operations Inc | Hendricks, MN | 4 GWh | Jan 2001 | Dec 2024 | Wind |
| Julia Hills LLC | CHI Operations Inc | Hendricks, MN | 4 GWh | Jan 2001 | Dec 2024 | Wind |
| Sun River LLC | CHI Operations Inc | Hendricks, MN | 4 GWh | Jan 2001 | Dec 2024 | Wind |
| Tsar Nicholas LLC | CHI Operations Inc | Hendricks, MN | 4 GWh | Jan 2001 | Dec 2024 | Wind |
| Oak Point Cogen | Chevron Oronite Co LLC | Belle Chasse, LA | 99 GWh | Sep 1999 | Dec 2024 | Natural Gas |
| CG Windfarm LLC | CG Windfarm LLC | Woodstock, MN | 144 MWh | Nov 2003 | Dec 2024 | Wind |
| CF Industries Yazoo City Complex | CF Industries Nitrogen LLC | Yazoo City, MS | 153 GWh | Jun 1984 | Oct 2025 | Natural Gas |
| Cerro Gordo Wind Farm | Cerro Gordo Wind Farm | Union, IA | 163 GWh | Jul 2020 | Oct 2025 | Wind |
| Cereal City Solar, LLC | Cereal City Solar, LLC | Battle Creek, MI | 194 GWh | Nov 2023 | Oct 2025 | Solar |
| Central Michigan University | Central Michigan University | Mt. Pleasant, MI | 30 GWh | Nov 1987 | Oct 2025 | Natural Gas |
| Summit Lake | Central Iowa Power Cooperative | Creston, IA | 70 GWh | Feb 1951 | Dec 2024 | Natural Gas : 99.9% |
| Eastern Iowa Solar | Central Iowa Power Cooperative | Wilton, IA | 3 GWh | Oct 2016 | Dec 2024 | Solar |
| Trigen St. Louis | Centerstream STL, LLC | St Louis, MO | 86 GWh | May 1999 | Jul 2025 | Natural Gas |
| Centaurus Community Solar | Centaurus Community Solar | Maynard, MN | 3 GWh | Aug 2017 | Dec 2024 | Solar |
| Streeter Station | Cedar Falls Utilities | Cedar Falls, IA | 8 GWh | Aug 1963 | Dec 2024 | Natural Gas : 94.0% Bituminous Coal : 6.0% |
| Gas Turbine (IA) | Cedar Falls Utilities | Cedar Falls, IA | 690 MWh | Dec 1967 | Dec 2024 | Natural Gas |
| Cavalry Solar Hybrid | Cavalry Energy Center LLC | Monon, IN | 371 GWh | Apr 2024 | Oct 2025 | Solar |
| Cattail (CSG) | Cattail Solar, LLC | Fulton, IL | 3 GWh | May 2022 | Dec 2024 | Solar |
| Caterpillar | Caterpillar Inc | Lafayette, IN | 23 GWh | Nov 1983 | Oct 2025 | Natural Gas |
| Cataract (MI) | Cataract Hydro, LLC | Gwinn, MI | 5 GWh | Jan 1988 | Dec 2024 | Water |
| Cashton Greens Wind Farm | Cashton Greens Wind Farm LLC | Cashton, WI | 11 GWh | Apr 2012 | Dec 2024 | Wind |
| Skalbeck Solar | Cascade Solar LLC | Sacred Heart, MN | 2 GWh | Oct 2022 | Dec 2024 | Solar |
| Cascade | Cascade Municipal Utilities | Cascade, IA | 73 MWh | Mar 1951 | Dec 2024 | Distillate Fuel Oil : 62.7% Natural Gas : 37.3% |
| Carville Energy LLC | Carville Energy LLC | St Gabriel, LA | 3 TWh | May 2003 | Oct 2025 | Natural Gas |
| Carstensen Wind | Carstensen Wind, LLC (Longroad) | Pipestone, MN | 2 GWh | Nov 2004 | Dec 2024 | Wind |
| Carlson Community (CSG) | Carlson Community Solar | Lindstrom, MN | 1 GWh | Sep 2020 | Dec 2024 | Solar |
| Carleton College | Carleton College | Northfield, MN | 8 GWh | Aug 2004 | Dec 2024 | Wind : 99.8% |
| Carina Community Solar | Carina Community Solar | Zumbro Falls, MN | 6 GWh | Jan 2018 | Dec 2024 | Solar |
| Cargill Salt Hersey | Cargill Salt Hersey | Hersey, MI | 318 MWh | Aug 1998 | Dec 2023 | Natural Gas |
| Cargill Corn Milling Division | Cargill Inc North America Sweetners | Eddyville, IA | 110 GWh | Nov 1952 | Dec 2024 | Natural Gas |
| Logansport Solar | Cardinal Renewables | Logansport, IN | 23 GWh | Aug 2021 | Dec 2024 | Solar |
| Cardinal Point Wind | Cardinal Point LLC | Sciota, IL | 504 GWh | Feb 2020 | Oct 2025 | Wind |
| Captain Solar, LLC | Captain Solar, LLC | Mt. Morris, MI | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| Capella Community Solar | Capella Community Solar | Pipestone, MN | 9 GWh | Sep 2017 | Dec 2024 | Solar |
| Platt Solar | Cannon River LLC | Hadley, MN | 2 GWh | Dec 2022 | Dec 2024 | Solar |
| Cannon Garden Solar | Cannon Garden LLC | Faribault, MN | 2 GWh | Dec 2019 | Dec 2024 | Solar |
| Camp Ripley Solar | Camp Riley Solar Facility | Little Falls, MN | 15 GWh | Oct 2016 | Dec 2024 | Solar |
| Caelum Community Solar | Caelum Community Solar | Foley, MN | 3 GWh | Sep 2017 | Dec 2024 | Solar |
| Cadillac Renewable Energy | Cadillac Renewable Energy LLC | Cadillac, MI | 136 GWh | Jul 1993 | Dec 2024 | Wood/Wood Waste Solids |
| Byrne Solar, LLC | Byrne Solar, LLC | Lowell, MI | 10 GWh | Sep 2023 | Dec 2024 | Solar |
| Fennimore Solar | Butter Solar, LLC | Fennimore, WI | 4 GWh | Aug 2019 | Dec 2024 | Solar |
| New Lisbon Solar | Butter Solar, LLC | New Lisbon, WI | 4 GWh | Aug 2019 | Dec 2024 | Solar |
| Cumberland Solar | Butter Solar, LLC | Cumberland, WI | 4 GWh | Aug 2019 | Dec 2024 | Solar |
| Cashton Solar | Butter Solar, LLC | Cashton, WI | 3 GWh | Aug 2019 | Dec 2024 | Solar |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #60 | Alcoa Power Generating, Inc. - Yadkin Division | 643.5 GWh | 4 |
| #27 | Associated Electric Cooperative, Inc. | 23.9 TWh | 47 |
| #13 | Duke Energy Carolinas | 111.6 TWh | 565 |
| #52 | Duke Energy Progress West | 4.3 TWh | 10 |
| #24 | Louisville Gas and Electric Company and Kentucky Utilities Company | 34.2 TWh | 25 |
| #1 | PJM Interconnection, LLC | 872.9 TWh | 2,465 |
| #6 | Southern Company Services, Inc. - Trans | 249.9 TWh | 417 |
| #5 | Southwest Power Pool | 300.6 TWh | 835 |
| #51 | Southwestern Power Administration | 5.0 TWh | 34 |
| #9 | Tennessee Valley Authority | 161.0 TWh | 204 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 872.9 TWh | 2,465 |
| #2 | Midcontinent Independent System Operator, Inc. | 656.9 TWh | 2,831 |
| #3 | Electric Reliability Council of Texas, Inc. | 484.7 TWh | 1,313 |
| #5 | Southwest Power Pool | 300.6 TWh | 835 |
| #6 | Southern Company Services, Inc. - Trans | 249.9 TWh | 417 |
| #7 | California Independent System Operator | 184.8 TWh | 2,075 |
| #9 | Tennessee Valley Authority | 161.0 TWh | 204 |
| #10 | Florida Power & Light Co. | 149.6 TWh | 187 |
| #12 | New York Independent System Operator | 132.6 TWh | 1,211 |
| #13 | Duke Energy Carolinas | 111.6 TWh | 565 |