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 | Jun 2026 |
| Annual Generation | 669.3 TWh |
| Power Plants | 2,831 |
| Utilities | 1,296 |
| 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% Coal | 27% Wind | 14.9% Nuclear | 13.8% Solar | 5.3% 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 |
|---|---|---|---|---|---|---|
| Marshall Solar Energy Project | Marshall Solar Energy Project | Marshall, MN | 96 GWh | Dec 2016 | Mar 2026 | Solar |
| Marshall (MN) | City of Marshall - (MN) | Marshall, MN | 60 MWh | Jun 1969 | Dec 2024 | Distillate Fuel Oil |
| Marshall (MI) | City of Marshall - (MI) | Marshall, MI | 704 MWh | May 1928 | Dec 2024 | Water |
| Marshall (IL) | City of Marshall - (IL) | Marshall, IL | 116 MWh | Mar 2002 | Dec 2024 | Distillate Fuel Oil |
| Marquette Energy Center | City of Marquette - (MI) | Marquette, MI | 162 GWh | Jul 2017 | Dec 2024 | Natural Gas : 99.2% Distillate Fuel Oil : 0.8% |
| Marmas Solar CSG | National Grid Renewables | St. Cloud, MN | 6 GWh | Mar 2018 | Dec 2024 | Solar |
| Marlow Solar, LLC CSG | Marlow Solar, LLC | Bluford, IL | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| Markland | Duke Energy Indiana, LLC | Florence, IN | 299 GWh | Dec 1966 | Dec 2024 | Water |
| Marion Solar LNG | Marion Solar LLC | Indianapolis, IN | 2 GWh | Sep 2015 | Dec 2024 | Solar |
| Marion Solar 4b LLC | Pivot Energy | Sandoval, IL | 970 MWh | Apr 2024 | Dec 2024 | Solar |
| Marion Garden | Excelsior Energy Capital | Faribault, MN | 2 GWh | Oct 2020 | Dec 2024 | Solar |
| Marion | Southern Illinois Power Coop | Marion, IL | 802 GWh | May 1963 | Mar 2026 | Bituminous Coal : 86.2% Natural Gas : 13.3% |
| Marigold Community Solar Garden, LLC | National Grid Renewables | Waterville, MN | 2 GWh | Dec 2020 | Dec 2024 | Solar |
| Marceline | City of Marceline - (MO) | Marceline, MO | 4 MWh | Jul 1989 | Dec 2024 | Distillate Fuel Oil |
| Mapleton Community Solar | Mapleton Community Solar | Mapleton, MN | 5 GWh | May 2017 | Dec 2024 | Solar |
| Maple Lake | Great River Energy | Maple Lake, MN | 176 MWh | Apr 1978 | Dec 2024 | Distillate Fuel Oil |
| Maple Flats | Invenergy Services LLC | Louisville, IL | 490 GWh | Oct 2024 | Mar 2026 | Solar |
| Mansfield Mill | IPC-Mansfield Mill | Mansfield, LA | 869 GWh | Sep 1981 | Mar 2026 | Natural Gas : 53.5% Black Liquor : 32.9% Wood/Wood Waste Solids : 12.0% Tire-derived Fuels : 1.6% |
| Mankato Energy Center | MEC Holdings, LLC | Mankato, MN | 3 TWh | Jun 2006 | Dec 2024 | Natural Gas |
| Manitowoc | Manitowoc Public Utilities | Manitowoc, WI | 178 GWh | May 1955 | Mar 2026 | Wood/Wood Waste Solids : 91.1% Petroleum Coke : 4.9% Bituminous Coal : 3.6% |
| Manistique | Cloverland Electric Co-op | Manistique, MI | 1 GWh | Jun 1960 | Dec 2024 | Distillate Fuel Oil |
| Malmedal Solar Garden | Malmedal Garden LLC | Starbuck, MN | 2 GWh | Jun 2019 | Dec 2024 | Solar |
| Magnolia Power | Magnolia Power Holdings LLC | Plaquemine, LA | 1 TWh | - | Mar 2026 | Natural Gas |
| Magnet Cove | Arkansas Electric Coop Corp | Malvern, AR | 3 TWh | Jun 2005 | Mar 2026 | Natural Gas |
| Macksburg Wind Project | MidAmerican Energy Co | Macksburg, IA | 330 GWh | Nov 2014 | Dec 2024 | Wind |
| Macbeth Solar | Macbeth Solar, LLC | Montague, MI | 39 GWh | Apr 2022 | Dec 2024 | Solar |
| M72 West Solar | Heritage Sustainable Energy. LLC | Traverse City, MI | 3 GWh | Nov 2019 | Dec 2024 | Solar |
| M L Hibbard | ALLETE, Inc. | Duluth, MN | 100 GWh | May 1949 | Mar 2026 | Wood/Wood Waste Solids : 91.7% Subbituminous Coal : 6.3% Natural Gas : 2.0% |
| M. G. Emmett J. Bean Federal Center | U.S. General Services Administration | Indianapolis, IN | 519 MWh | Mar 2011 | Dec 2024 | Solar |
| Lyra Community Solar | Lyra Community Solar | Waterville, MN | 5 GWh | Jan 2018 | Dec 2024 | Solar |
| Lyons Road | Lyons Road Solar, LLC | Owosso, MI | 40 GWh | Dec 2021 | Dec 2024 | Solar |
| Lyman Garden | Excelsior Energy Capital | Northfield, MN | 2 GWh | Oct 2020 | Dec 2024 | Solar |
| Luverne Wind Energy Center | Otter Tail Power Co | Luverne, ND | 110 GWh | Aug 2009 | Dec 2024 | Wind |
| Luther College Wind Project | Luther College Wind Energy Project LLC | Decorah, IA | 3 GWh | Sep 2011 | Dec 2024 | Wind |
| Lundgren Wind Project | MidAmerican Energy Co | Otho, IA | 804 GWh | Jul 2014 | Dec 2024 | Wind |
| Lukuc B Community Solar LLC CSG | Lukuc B Community Solar LLC | Herrin, IL | 4 GWh | Jun 2021 | Dec 2024 | Solar |
| Lucky Wind | Lucky Wind, LLC (Longroad) | Pipestone, MN | 2 GWh | Nov 2004 | Dec 2024 | Wind |
| LSU Cogen | LSU and A&M College | Baton Rouge, LA | 73 GWh | Nov 2004 | Mar 2026 | Natural Gas |
| LSP-Cottage Grove LP | Cottage Grove Operating Services LLC | Cottage Grove, MN | 1 TWh | Sep 1997 | Dec 2024 | Natural Gas |
| LRWRA | Entegrity Solar LRWRA, LLC | Little Rock, AR | 2 GWh | Jul 2023 | Dec 2024 | Solar |
| Lowry CSG2, LLC | Nautilus Solar Solutions | Glenwood, MN | 2 GWh | Nov 2020 | Dec 2024 | Solar |
| Louisiana Tech University Power Plant | Louisiana Tech University | Ruston, LA | 42 GWh | Jun 2004 | Dec 2024 | Natural Gas |
| Louisiana Sugar Refining | Louisiana Sugar Refining LLC | Gramercy, LA | 20 GWh | Aug 1930 | Dec 2024 | Natural Gas |
| Louisiana 1 | Entergy Louisiana LLC | Baton Rouge, LA | 3 TWh | Sep 1951 | Mar 2026 | Natural Gas : 72.8% Other Gas : 27.2% |
| Louise Solar | National Grid Renewables | Taopi, MN | 92 GWh | Nov 2024 | Mar 2026 | Solar |
| Louisa | MidAmerican Energy Co | Muscatine, IA | 5 TWh | Sep 1983 | Mar 2026 | Subbituminous Coal : 99.4% Natural Gas : 0.6% |
| Loud | Consumers Energy Co - (MI) | Oscoda, MI | 17 GWh | Dec 1912 | Dec 2024 | Water |
| Lotus Wind | Lotus Wind, LLC | Modesto, IL | 28 GWh | - | Mar 2026 | Wind |
| Lost Lakes Wind Farm LLC | Lost Lakes Wind Farm LLC | Lake Park, IA | 244 GWh | Nov 2009 | Dec 2024 | Wind |
| Lorin Industries | Lorin Industries | Muskegon, MI | 5 GWh | Dec 1989 | Dec 2024 | Natural Gas |
| Loon Garden | Loon Garden LLC | Waseca, MN | 2 GWh | Jan 2020 | Dec 2024 | Solar |
| Long Lake Solar, LLC | Long Lake Solar, LLC | West Helena, AR | 476 GWh | - | Mar 2026 | Solar |
| Logansport Solar | Cardinal Renewables | Logansport, IN | 23 GWh | Aug 2021 | Dec 2024 | Solar |
| Livingston Generating Station | CMS Generation MI Power LLC | Gaylord, MI | 20 GWh | May 1999 | Dec 2024 | Natural Gas |
| Little Quinnesec Falls Hydro Project | Eagle Creek Renewable Energy, LLC | Niagara, WI | 57 GWh | Nov 1900 | Dec 2024 | Water |
| Little Gypsy | Entergy Louisiana LLC | La Place, LA | 951 GWh | Feb 1961 | Mar 2026 | Natural Gas |
| Little Falls (MN) | ALLETE, Inc. | Little Falls, MN | 32 GWh | Dec 1905 | Dec 2024 | Water |
| Little Chute | City of Kaukauna | Combined Locks, WI | 24 GWh | May 1948 | Dec 2024 | Water |
| Litchfield | Litchfield Public Utilities | Litchfield, MN | 143 MWh | Aug 1963 | Dec 2024 | Natural Gas : 62.5% Distillate Fuel Oil : 37.5% |
| Linton | Indiana Municipal Power Agency | Linton, IN | 11 GWh | Jun 2022 | Dec 2024 | Solar |
| Lindstrom Solar CSG | National Grid Renewables | Lindstrom, MN | 5 GWh | Mar 2018 | Dec 2024 | Solar |
| Linden 03 CSG | SunShare Management | Belle Plaine, MN | 2 GWh | Apr 2020 | Dec 2024 | Solar |
| Linden 02 CSG | SunShare Management | Belle Plaine, MN | 2 GWh | Apr 2020 | Dec 2024 | Solar |
| Linden 01 CSG | SunShare Management | Belle Plaine, MN | 2 GWh | Apr 2020 | Dec 2024 | Solar |
| Lind Solar CSG | Terraform Arcadia | Young America, MN | 8 GWh | Jan 2017 | Dec 2024 | Solar |
| Lincoln Solar | Ecos Energy LLC | Merrillville, IN | 608 MWh | Nov 2012 | Dec 2024 | Solar |
| Lincoln Land Wind | Lincoln Land Wind, LLC | TBD, IL | 988 GWh | Oct 2021 | Mar 2026 | Wind |
| Lincoln Heights II | ALLETE Clean Energy | Lake Benton, MN | 7 GWh | Apr 2006 | Dec 2024 | Wind |
| Lincoln Heights I | ALLETE Clean Energy | Lake Benton, MN | 10 GWh | Apr 2006 | Dec 2024 | Wind |
| Lily Garden | Lily Garden LLC | Waseca, MN | 2 GWh | Jun 2023 | Dec 2024 | Solar |
| Lightfoot Solar, LLC | Lightfoot Solar, LLC | Luzerne, MI | 19 GWh | Sep 2023 | Dec 2024 | Solar |
| Libra Community Solar | National Grid Renewables | Glenwood, MN | 2 GWh | Oct 2018 | Dec 2024 | Solar |
| Liberty Pole DPC Solar | SoCore Energy LLC | Viroqua, WI | 2 GWh | Apr 2017 | Mar 2026 | Solar |
| Liberty County Solar Project | Liberty County Solar Project, LLC | Dayton, TX | 253 GWh | Aug 2024 | Mar 2026 | Solar |
| Lewis Creek | Entergy Texas Inc. | Willis, TX | 2 TWh | Nov 1970 | Mar 2026 | Natural Gas |
| Lewis & Clark | Montana-Dakota Utilities Co | Richland, MT | 12 GWh | Sep 1958 | Mar 2026 | Natural Gas |
| Leven Garden Solar | Leven Garden LLC | Villard, MN | 2 GWh | Apr 2020 | Dec 2024 | Solar |
| Letts Creek Solar, LLC | AES Distributed Energy | Grass Lake, MI | 28 GWh | Nov 2022 | Dec 2024 | Solar |
| LeSun CSG, LLC | Cypress Creek Renewables | Waterville, MN | 8 GWh | Dec 2017 | Dec 2024 | Solar |
| LEPA Unit No. 1 | Louisiana Energy & Power Authority | Morgan City, LA | 145 GWh | May 2016 | Dec 2024 | Natural Gas |
| Leonardo Wind 1 LLC | Leonardo Wind 1 LLC | Alden, IA | 10 GWh | Nov 2016 | Dec 2024 | Wind |
| Leo Community Solar | National Grid Renewables | Hadley, MN | 2 GWh | Nov 2018 | Dec 2024 | Solar |
| Lenox | City of Lenox - (IA) | Lenox, IA | 39 MWh | Aug 1948 | Dec 2024 | Distillate Fuel Oil |
| Lennon Generating | North American Natural Res | Lennon, MI | 30 GWh | Jan 2001 | Dec 2024 | Landfill Gas |
| Lenape II | Lenape Solar II, LLC | Indianapolis, IN | 5 GWh | Oct 2015 | Dec 2024 | Solar |
| Lemonweir (Oak 1) | Greenbacker Renewable Energy Corporation | Mauston, WI | 6 GWh | Nov 2023 | Dec 2024 | Solar |
| Lemond Solar | Adapture Renewables, Inc. | Owatonna, MN | 9 GWh | May 2017 | Dec 2024 | Solar |
| Ledyard Windpower, LLC | Duke Energy Renewables Services | Lakota, IA | 609 GWh | Nov 2022 | Mar 2026 | Wind |
| Ledgeview | Greenbacker Renewable Energy Corporation | Fond du Lac, WI | 2 GWh | Jul 2024 | Dec 2024 | Solar |
| Lawrence Creek Solar | Enel Green Power NA, Inc. | Shafer, MN | 6 GWh | Nov 2016 | Dec 2024 | Solar |
| Lawrence County Station | Hoosier Energy R E C, Inc | Mitchell, IN | 109 GWh | Apr 2005 | Dec 2024 | Natural Gas |
| Laurel Wind Farm | MidAmerican Energy Co | Laurel, IA | 463 GWh | Nov 2011 | Dec 2024 | Wind |
| Laurel Village (CSG) | Laurel Village Community Solar LLC | Cokato, MN | 2 GWh | Mar 2020 | Dec 2024 | Solar |
| Laskin Solar | ALLETE, Inc. | Hoyt Lakes, MN | 8 GWh | Nov 2022 | Dec 2024 | Solar |
| LaO Energy Systems | Dow Chemical Co | Plaquemine, LA | 1 TWh | May 1958 | Dec 2024 | Natural Gas : 84.1% Other Gas : 15.9% |
| Lantana Solar, LLC | National Grid Renewables | Glenwood, MN | 2 GWh | Dec 2020 | Dec 2024 | Solar |
| Lansing BWL REO Town Plant | Lansing Board of Water and Light | Lansing, MI | 437 GWh | Jun 2013 | Dec 2024 | Natural Gas |
| Lannon Stone | Wisconsin Electric Power Co | Pewaukee, WI | 4 GWh | Nov 2021 | Dec 2024 | Solar |
| Lange Solar | Arcadia Solar, LLC | Byron, MN | 2 GWh | Aug 2019 | Dec 2024 | Solar |
| Langdon Wind II LLC | FPL Energy Langdon Wind LLC | Osnabrock, ND | 171 GWh | Aug 2008 | Dec 2024 | Wind |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #61 | Alcoa Power Generating, Inc. - Yadkin Division | 522.6 GWh | 4 |
| #27 | Associated Electric Cooperative, Inc. | 23.8 TWh | 47 |
| #13 | Duke Energy Carolinas | 112.2 TWh | 565 |
| #51 | Duke Energy Progress West | 4.6 TWh | 10 |
| #23 | Louisville Gas and Electric Company and Kentucky Utilities Company | 34.1 TWh | 25 |
| #1 | PJM Interconnection, LLC | 873.9 TWh | 2,465 |
| #6 | Southern Company Services, Inc. - Trans | 252.5 TWh | 417 |
| #5 | Southwest Power Pool | 304.8 TWh | 835 |
| #53 | Southwestern Power Administration | 4.3 TWh | 34 |
| #9 | Tennessee Valley Authority | 163.7 TWh | 204 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 873.9 TWh | 2,465 |
| #2 | Midcontinent Independent System Operator, Inc. | 669.3 TWh | 2,831 |
| #3 | Electric Reliability Council of Texas, Inc. | 489.5 TWh | 1,313 |
| #5 | Southwest Power Pool | 304.8 TWh | 835 |
| #6 | Southern Company Services, Inc. - Trans | 252.5 TWh | 417 |
| #7 | California Independent System Operator | 173.0 TWh | 2,075 |
| #9 | Tennessee Valley Authority | 163.7 TWh | 204 |
| #10 | Florida Power & Light Co. | 151.0 TWh | 187 |
| #12 | New York Independent System Operator | 134.9 TWh | 1,211 |
| #13 | Duke Energy Carolinas | 112.2 TWh | 565 |