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 | Jun 2025 |
| Annual Generation | 643.6 TWh |
| Power Plants | 2,788 |
| Utilities | 1,282 |
| 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 | 36.7% Coal | 28.1% Wind | 15.5% Nuclear | 14.2% Solar | 3.4% Water | 1.6% 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 |
|---|---|---|---|---|---|---|
| USS King 2 CSG | Standard Solar | Waconia, MN | 2 GWh | Jul 2019 | Dec 2024 | Solar |
| Lake Hallie | Standard Solar | Chippewa Falls, WI | 1 MWh | - | Dec 2024 | Solar |
| USS B&B Solar LLC CSG | Standard Solar | Morgan, MN | 2 GWh | Aug 2020 | Dec 2024 | Solar |
| USS Dot Com Solar LLC CSG | Standard Solar | Morgan, MN | 2 GWh | Feb 2021 | Dec 2024 | Solar |
| USS Solar Way LLC CSG | Standard Solar | Hartland, MN | 2 GWh | Oct 2020 | Dec 2024 | Solar |
| USS Steamboat Solar LLC CSG | Standard Solar | Morgan, MN | 2 GWh | Mar 2021 | Dec 2024 | Solar |
| USS Kass Solar LLC | Standard Solar | Garvin, MN | 2 GWh | Dec 2020 | Dec 2024 | Solar |
| USS KVPV Solar LLC CSG | Standard Solar | Fulton, MN | 2 GWh | Sep 2020 | Dec 2024 | Solar |
| USS All In Solar LLC CSG | Standard Solar | Hartland, MN | 2 GWh | Sep 2020 | Dec 2024 | Solar |
| USS Flower Solar LLC CSG | Standard Solar | Nicollet, MN | 2 GWh | Aug 2020 | Dec 2024 | Solar |
| USS DVL Solar CSG | Standard Solar | Waconia, MN | 2 GWh | Jul 2019 | Dec 2024 | Solar |
| USS Horne North Solar LLC CSG | Standard Solar | Felton, MN | 2 GWh | Sep 2020 | Dec 2024 | Solar |
| USS Cougar Solar LLC CSG | Standard Solar | Morgan, MN | 2 GWh | Aug 2020 | Dec 2024 | Solar |
| USS Eggo Solar CSG | Standard Solar | Cologne, MN | 2 GWh | May 2019 | Dec 2024 | Solar |
| Wright Kirby 1-5 CSG | Standard Solar | Monticello, MN | 7 GWh | May 2019 | Dec 2024 | Solar |
| USS Horne South Solar LLC CSG | Standard Solar | Felton, MN | 2 GWh | Sep 2020 | Dec 2024 | Solar |
| USS Kost Trail Solar CSG | Standard Solar | North Branch, MN | 2 GWh | May 2019 | Dec 2024 | Solar |
| USS JJ Clay Solar LLC CSG | Standard Solar | Felton, MN | 2 GWh | Sep 2020 | Dec 2024 | Solar |
| USS Verde Solar LLC CSG | Standard Solar | Morgan, MN | 2 GWh | Sep 2020 | Dec 2024 | Solar |
| Stahl Wind Energy | Stahl Wind Energy, LLC (Longroad) | Pipestone, MN | 2 GWh | Nov 2004 | Nov 2024 | Wind |
| STAG St. Paul Project CSG | STAG St. Paul Community Solar LLC | Saint Paul, MN | 1 GWh | Dec 2019 | Dec 2024 | Solar |
| St. Olaf StandBy Generators | St. Olaf College | Northfield, MN | 31 MWh | May 1999 | Dec 2024 | Distillate Fuel Oil |
| St. Olaf Wind Turbine | St. Olaf College | Northfield, MN | 3 GWh | Aug 2006 | Dec 2024 | Wind |
| St. James Solar (LA) | St. James Solar, LLC | Vacherie, LA | 45 GWh | Jan 2023 | Dec 2024 | Solar |
| St. Cloud Hydro | St. Cloud Hydroelectric Generation Facility | St Cloud, MN | 51 GWh | May 1988 | Dec 2024 | Water |
| St Paul Cogeneration | St Paul Cogeneration LLC | St. Paul, MN | 151 GWh | Mar 2003 | Dec 2024 | Wood/Wood Waste Solids : 82.2% Natural Gas : 17.8% |
| Saint Marys Hospital Power Plant | St Mary's Hospital | Rochester, MN | 56 GWh | Dec 1970 | Apr 2025 | Natural Gas : 99.4% Distillate Fuel Oil : 0.6% |
| Carroll Area Wind Farm | SRIV Partnership LLC | Templeton, IA | 54 GWh | Dec 2014 | Dec 2024 | Wind |
| Springfield (MN) | Springfield Public Utils Comm - (MN) | Springfield, MN | 1 MWh | May 1994 | Dec 2024 | Distillate Fuel Oil |
| Spring Valley | Spring Valley Pub Utils Comm | Spring Valley, MN | 157 MWh | Dec 1951 | Dec 2024 | Distillate Fuel Oil : 78.5% Natural Gas : 21.5% |
| Spica Community Solar | Spica Community Solar | Lake Lillian, MN | 3 GWh | Jul 2017 | Dec 2024 | Solar |
| Hurricane Creek CSG | SPG IL Hurricane Creek Solar LLC | Carterville, IL | 4 GWh | May 2021 | Dec 2023 | Solar |
| Deuel Harvest Wind Energy LLC | Southern Power Co | Clear Lake, SD | 1 TWh | Jan 2021 | Apr 2025 | Wind |
| Fairmont (MN) | Southern Minnesota Mun P Agny | Fairmont, MN | 6 GWh | Dec 1974 | Dec 2024 | Natural Gas : 97.6% Distillate Fuel Oil : 2.4% |
| Owatonna Energy Station | Southern Minnesota Mun P Agny | Owatonna, MN | 13 GWh | Feb 2018 | Dec 2024 | Natural Gas |
| Redwood Falls Wind | Southern Minnesota Mun P Agny | Redwood Falls, MN | 10 GWh | Nov 2004 | Dec 2024 | Wind |
| SMMPA Methane Energy Facility | Southern Minnesota Mun P Agny | Mora, MN | 366 MWh | Mar 2012 | Dec 2024 | Landfill Gas |
| Fairmont Wind | Southern Minnesota Mun P Agny | Fairmont, MN | 15 GWh | Feb 2003 | Dec 2024 | Wind |
| Southern Minnesota Beet Sugar | Southern Minnesota Beet Sugar | Renville, MN | 27 GWh | Aug 1976 | Apr 2025 | Subbituminous Coal : 71.3% Natural Gas : 28.2% Residual Fuel Oil : 0.5% |
| Veolia ES Blackfoot Landfill Facility | Southern Indiana Gas & Elec Co | Winslow, IN | 7 GWh | May 2009 | Dec 2024 | Landfill Gas |
| A B Brown | Southern Indiana Gas & Elec Co | Mount Vernon, IN | 89 GWh | Feb 1979 | Apr 2025 | Natural Gas |
| F B Culley | Southern Indiana Gas & Elec Co | Newburgh, IN | 2 TWh | Nov 1966 | Apr 2025 | Bituminous Coal : 96.1% Natural Gas : 3.9% |
| Troy Solar | Southern Indiana Gas & Elec Co | Troy, IN | 93 GWh | Mar 2021 | Apr 2025 | Solar |
| Volkman Road Solar Array Hybrid | Southern Indiana Gas & Elec Co | Evansville, IN | 4 GWh | Oct 2018 | Dec 2024 | Solar |
| Oak Hill Solar Array | Southern Indiana Gas & Elec Co | Evansville, IN | 3 GWh | Oct 2018 | Dec 2024 | Solar |
| SIUC | Southern Illinois University Carbondale | Carbondale, IL | 7 GWh | May 1998 | Apr 2025 | Bituminous Coal |
| Marion | Southern Illinois Power Coop | Marion, IL | 722 GWh | May 1963 | Apr 2025 | Bituminous Coal : 85.5% Natural Gas : 14.4% |
| South Garden | South Garden LLC | Winstead, MN | 2 GWh | Jun 2023 | Dec 2024 | Solar |
| South Fork Wind Farm | South Fork Wind, LLC | Round Lake, MN | 52 GWh | Nov 2016 | Dec 2024 | Wind |
| Solar Star Urbana Landfill East | Solar Star Urbana Landfill East, LLC | Urbana, IL | 4 GWh | Sep 2021 | Dec 2024 | Solar |
| Solar Star Urbana Landfill Central | Solar Star Urbana Landfill Central, LLC | Urbana, IL | 4 GWh | Oct 2021 | Dec 2024 | Solar |
| Amazon MDW7 Solar Project | Solar Star Prime 6, LLC | Monee, IL | 3 GWh | Oct 2022 | Dec 2024 | Solar |
| Syncarpha Dodge 1 CSG | Solar Provider Group MN I LLC | Dodge Center, MN | 2 GWh | Apr 2019 | Dec 2024 | Solar |
| Prairie Creek Solar | Sol Systems | Jacksonville, IL | 60 GWh | Oct 2023 | Apr 2025 | Solar |
| LA3 West Baton Rouge Solar Facility | Sol Systems | West Baton Rouge, LA | 112 GWh | Aug 2020 | Apr 2025 | Solar |
| Eldorado Solar I | Sol Systems | Eldorado, IL | 82 GWh | - | Apr 2025 | Solar |
| Vermillion River_MN_GRE DEA-GM | SoCore Energy LLC | Farmington, MN | 5 GWh | Nov 2019 | Dec 2024 | Solar |
| Gopher CSG | SoCore Energy LLC | Taylor Falls, MN | 8 GWh | Dec 2017 | Dec 2024 | Solar |
| Athens MN CONX | SoCore Energy LLC | Athens, MN | 10 GWh | Nov 2018 | Dec 2024 | Solar |
| GRE Marshan Solar | SoCore Energy LLC | Hastings, MN | 2 GWh | Oct 2017 | Dec 2024 | Solar |
| Liberty Pole DPC Solar | SoCore Energy LLC | Viroqua, WI | 2 GWh | Apr 2017 | Apr 2025 | Solar |
| Downsville DPC Solar | SoCore Energy LLC | Menomonee, WI | 2 GWh | Jan 2017 | Apr 2025 | Solar |
| Mt. Hope DPC Solar | SoCore Energy LLC | Mt. Hope, WI | 2 GWh | Dec 2016 | Apr 2025 | Solar |
| Medford DPC Solar | SoCore Energy LLC | Medford, WI | 3 GWh | Jan 2017 | Apr 2025 | Solar |
| Whistling Winds DPC Solar | SoCore Energy LLC | New Lisbon, WI | 3 GWh | May 2017 | Apr 2025 | Solar |
| DPC York | SoCore Energy LLC | Thomson, IL | 3 GWh | Jul 2019 | Dec 2024 | Solar |
| DPC Madison | SoCore Energy LLC | Ridgeway, IA | 3 GWh | Jan 2019 | Dec 2024 | Solar |
| Bunker Hill Solar | SoCore Energy LLC | Lyndon, IL | 4 GWh | Oct 2021 | Dec 2024 | Solar |
| Abel Solar | SoCore Energy LLC | Morrison, IL | 3 GWh | Nov 2021 | Dec 2024 | Solar |
| Anoka County MN CONX | SoCore Energy LLC | Ramsey, MN | 6 GWh | Sep 2018 | Dec 2024 | Solar |
| New Auburn DPC Solar | SoCore Energy LLC | New Auburn, WI | 4 GWh | Dec 2017 | Apr 2025 | Solar |
| Strawberry Point DPC Solar | SoCore Energy LLC | Strawberry Point, IA | 2 GWh | Oct 2017 | Dec 2024 | Solar |
| Sand Lake DPC Solar | SoCore Energy LLC | Centuria, WI | 2 GWh | Oct 2017 | Dec 2024 | Solar |
| Nesvold Watertown Solar | SoCore Energy LLC | Watertown, MN | 9 GWh | Dec 2017 | Dec 2024 | Solar |
| Michael Solar | SoCore Energy LLC | Freeport, MN | 7 GWh | Nov 2017 | Dec 2024 | Solar |
| Lahr 1, LLC | SoCore Energy LLC | Wakefield Township, MN | 9 GWh | Dec 2017 | Dec 2024 | Solar |
| Taylors Falls CSG | SoCore Energy LLC | Taylor Falls, MN | 8 GWh | Dec 2017 | Dec 2024 | Solar |
| Richmond CSG | SoCore Energy LLC | Richmond, MN | 9 GWh | Nov 2017 | Dec 2024 | Solar |
| Warren DPC Solar | SoCore Energy LLC | Roberts, WI | 4 GWh | Apr 2017 | Apr 2025 | Solar |
| Conrath DPC Solar | SoCore Energy LLC | Conrath, WI | 1 GWh | May 2017 | Dec 2024 | Solar |
| Hampton MN GRE | SoCore Energy LLC | Hampton Township, MN | 4 GWh | Sep 2018 | Dec 2024 | Solar |
| Yorktown 2 Solar | SoCore Energy LLC | Lyndon, IL | 2 GWh | Dec 2023 | Dec 2024 | Solar |
| Lafayette DPC Solar | SoCore Energy LLC | Chippewa Falls, WI | 2 GWh | May 2017 | Dec 2024 | Solar |
| Yorktown 1 Solar | SoCore Energy LLC | Lyndon, IL | 2 GWh | Dec 2023 | Dec 2024 | Solar |
| Sauk DPC Solar | SoCore Energy LLC | Wonewoc, WI | 1 GWh | Dec 2016 | Dec 2024 | Solar |
| Fond du Lac Community Solar | SoCore Energy LLC | Fond Du Lac, WI | 2 GWh | Nov 2021 | Dec 2024 | Solar |
| Round Grove 2 | SoCore Energy LLC | Lyndon, IL | 5 GWh | Oct 2021 | Dec 2024 | Solar |
| Round Grove 1 | SoCore Energy LLC | Lyndon, IL | 4 GWh | Oct 2021 | Dec 2024 | Solar |
| GRE Cambridge Solar | SoCore Energy LLC | Cambridge, MN | 3 GWh | Nov 2019 | Dec 2024 | Solar |
| Sleepy Eye | Sleepy Eye Public Utility Comm | Sleepy Eye, MN | 131 MWh | Jun 1995 | Dec 2024 | Distillate Fuel Oil |
| Sky Volt | Sky Volt, LLC | Greenfield, IA | 5 GWh | Jul 2012 | Dec 2024 | Wind |
| Siems Solar Project CSG | Siems Community Solar LLC | Mazeppa, MN | 2 GWh | Jul 2020 | Dec 2024 | Solar |
| Shipsterns Solar, LLC | Shipsterns Solar, LLC | Albion, MI | 1 GWh | Sep 2023 | Dec 2023 | Solar |
| Shell Chemical | Shell Chemical LP - Geismar | Geismar, LA | 572 GWh | Jul 2002 | Dec 2024 | Natural Gas |
| Shelby Energy County | Shelby County Energy Center, LLC | Neoga, IL | 201 GWh | May 2000 | Dec 2024 | Natural Gas |
| Shaokatan Hills LLC | Shaokatan Hills, LLC (Longroad) | Hendricks, MN | 12 GWh | Jul 1999 | Dec 2024 | Wind |
| Shane's Wind Machine | Shane's Wind Machine LLC | Ruthton, MN | 7 GWh | Jun 2006 | Dec 2024 | Wind |
| Severson Garden | Severson HoldCo LLC | Waseca, MN | 943 MWh | Sep 2020 | Dec 2024 | Solar |
| Searcy Solar Hybrid | Searcy Solar, LLC | Searcy, AR | 209 GWh | Dec 2021 | Apr 2025 | Solar |
| Schwinghamer Project CSG | Schwinghamer Community Solar LLC | Albany, MN | 2 GWh | Nov 2019 | Dec 2024 | Solar |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #61 | Alcoa Power Generating, Inc. - Yadkin Division | 761.1 GWh | 4 |
| #27 | Associated Electric Cooperative, Inc. | 23.0 TWh | 47 |
| #13 | Duke Energy Carolinas | 111.8 TWh | 565 |
| #52 | Duke Energy Progress West | 4.1 TWh | 10 |
| #24 | Louisville Gas and Electric Company and Kentucky Utilities Company | 33.8 TWh | 25 |
| #1 | PJM Interconnection, LLC | 858.2 TWh | 2,429 |
| #20 | Public Service Company of Colorado | 48.4 TWh | 208 |
| #5 | Southwest Power Pool | 296.3 TWh | 830 |
| #51 | Southwestern Power Administration | 4.1 TWh | 33 |
| #8 | Tennessee Valley Authority | 158.7 TWh | 204 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 858.2 TWh | 2,429 |
| #2 | Midcontinent Independent System Operator, Inc. | 643.6 TWh | 2,788 |
| #3 | Electric Reliability Council of Texas, Inc. | 476.8 TWh | 1,305 |
| #5 | Southwest Power Pool | 296.3 TWh | 830 |
| #6 | Southern Company Services, Inc. - Trans | 251.6 TWh | 417 |
| #7 | California Independent System Operator | 190.5 TWh | 2,051 |
| #8 | Tennessee Valley Authority | 158.7 TWh | 204 |
| #10 | Florida Power & Light Co. | 149.5 TWh | 187 |
| #12 | New York Independent System Operator | 130.5 TWh | 1,191 |
| #13 | Duke Energy Carolinas | 111.8 TWh | 565 |