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 |
|---|---|---|---|---|---|---|
| Foreman's Hill Community Solar | Foreman's Hill CSG LLC | Red Wing, MN | 8 GWh | Jun 2018 | Dec 2025 | Solar |
| Forest Lake Solar CSG | Forest Lake Holdco LLC | Scandia, MN | 7 GWh | Jun 2017 | Dec 2025 | Solar |
| Forgeview Solar | Forgeview Solar, LLC | Blytheville, AR | 322 GWh | Nov 2025 | Jul 2026 | Solar |
| Formosa Plastics | Formosa Plastics Corp | Baton Rouge, LA | 416 GWh | Apr 1985 | Dec 2025 | Natural Gas |
| Fontanelle | Forward Fontanelle Power, LLC | Fontanelle, IA | 5 GWh | Jul 2012 | Dec 2025 | Wind |
| Foxtail Wind, LLC | Foxtail Wind, LLC | Forbes, ND | 609 GWh | Dec 2019 | Jul 2026 | Wind |
| FPL Energy Ashtabula Wind LLC | FPL Energy Ashtabula Wind LLC | Luverne, ND | 583 GWh | Nov 2008 | Dec 2025 | Wind |
| FPL Energy Burleigh County Wind | FPL Energy Burleigh County Wind LLC | Wilton, ND | 186 GWh | Nov 2005 | Dec 2025 | Wind |
| FPL Energy Crystal Lake Wind II LLC | FPL Energy Crystal Lake Wind II LLC | Britt, IA | 703 GWh | Dec 2008 | Jul 2026 | Wind |
| FPL Energy Crystal Lake Wind LLC | FPL Energy Crystal Lake Wind LLC | Britt, IA | 579 GWh | Nov 2008 | Jul 2026 | Wind |
| Hancock County Wind Energy Center | FPL Energy Hancock County Wind, LLC | Garner, IA | 250 GWh | Nov 2002 | Jul 2026 | Wind |
| Langdon Wind II LLC | FPL Energy Langdon Wind LLC | Osnabrock, ND | 175 GWh | Aug 2008 | Dec 2025 | Wind |
| Langdon Renewables, LLC | FPL Energy Langdon Wind LLC | Langdon, ND | 489 GWh | Nov 2007 | Dec 2025 | Wind |
| FPL Energy North Dakota Wind I/II | FPL Energy North Dakota Wind LLC | Edgeley, ND | 121 GWh | Sep 2003 | Dec 2025 | Wind |
| FPL Energy Oliver Wind I LLC | FPL Energy Oliver County Wind | Center, ND | 182 GWh | Nov 2006 | Dec 2025 | Wind |
| FPL Energy Oliver Wind II LLC | FPL Energy Oliver County Wind II LLC | Center, ND | 189 GWh | Nov 2007 | Dec 2025 | Wind |
| FPL Energy Story Wind LLC | FPL Energy Story Wind LLC | Zearing, IA | 566 GWh | Nov 2008 | Jul 2026 | Wind |
| Franklin CSG 1 | Franklin CSG 1 LLC | Franklin, MN | 913 MWh | Jun 2025 | Dec 2025 | Solar |
| Franklin Heating Station | Franklin Heating Station | Rochester, MN | 63 GWh | Dec 1950 | Jul 2026 | Natural Gas : 81.5% Purchased Steam : 17.2% Distillate Fuel Oil : 1.3% |
| French Road Solar II | French Road Solar II, LLC | Burlington, IL | 4 GWh | Feb 2022 | Dec 2025 | Solar |
| Frontenac Holdco LLC, CSG | Frontenac Holdco LLC | Frontenac, MN | 8 GWh | Feb 2019 | Dec 2025 | Solar |
| Galactic Wind | Galactic Wind | Waunakee, WI | 21 GWh | Nov 2012 | Dec 2025 | Wind |
| Garden Wind LLC | Garden Wind LLC | Zearing, IA | 322 GWh | Nov 2009 | Jul 2026 | Wind |
| GRS Arbor Hills | Gas Recovery Systems Inc | Northville, MI | 1 GWh | May 1996 | Jul 2026 | Landfill Gas |
| GRS C&C | Gas Recovery Systems Inc | Marshall, MI | 21 GWh | Jan 1995 | Dec 2025 | Landfill Gas |
| Geddes 1 Solar, LLC | Geddes 1 Solar, LLC | Saginaw, MI | 4 GWh | Nov 2020 | Dec 2025 | Solar |
| Geddes 2 Solar, LLC | Geddes 2 Solar, LLC | Saginaw, MI | 4 GWh | Dec 2020 | Dec 2025 | Solar |
| Gemini Community Solar | Gemini Community Solar | Scandia, MN | 5 GWh | Aug 2017 | Dec 2025 | Solar |
| MontSun Community Solar | Generate Capital | Montrose, MN | 9 GWh | Nov 2017 | Dec 2025 | Solar |
| WaveSun Community Solar | Generate Capital | Waverly, MN | 8 GWh | Nov 2017 | Dec 2025 | Solar |
| Anacott | Generate Capital | Hillsboro, IL | 2 GWh | Sep 2025 | Dec 2025 | Solar |
| Cedarville (IL) | Generate Capital | Freeport, IL | 4 GWh | Apr 2024 | Dec 2025 | Solar |
| Goldenrod (IL) | Generate Capital | Viola, IL | 6 GWh | Jul 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 |
| Fremont Community Digester, LLC | Generate Fremont Digester, LLC. | Newaygo, MI | 375 MWh | Nov 2012 | Dec 2024 | Other Biomass Gas |
| Genesee Solar Project | Genesee Solar Energy, LLC | Flint, MI | 42 GWh | Nov 2025 | Jul 2026 | Solar |
| Consumer Operations LLC | Georgia-Pacific Consumer Oper. Green Bay LLC | Green Bay, WI | 242 GWh | Dec 1953 | Jul 2026 | Natural Gas |
| Georgia-Pacific Monticello Paper | Georgia-Pacific Monticello LLC | Monticello, MS | 517 GWh | May 1968 | Dec 2025 | Black Liquor : 49.5% Natural Gas : 33.6% Wood/Wood Waste Solids : 16.9% |
| Apple River Solar, LLC | Geronimo Power | Amery, WI | 149 GWh | Nov 2025 | Jul 2026 | Solar |
| Unbridled Solar | Geronimo Power | Robards, KY | 317 GWh | Feb 2025 | Jul 2026 | Solar |
| Louise Solar | Geronimo Power | Taopi, MN | 92 GWh | Nov 2024 | Jul 2026 | Solar |
| Fillmore County Solar Project | Geronimo Power | Spring Valley, MN | 82 GWh | Nov 2024 | Jul 2026 | Solar |
| St. Cloud Solar CSG | Geronimo Power | St. Cloud, MN | 8 GWh | Mar 2018 | Dec 2025 | Solar |
| Aquila Community Solar | Geronimo Power | Glenwood, MN | 2 GWh | Feb 2019 | Dec 2025 | Solar |
| Acturus Community Solar | Geronimo Power | Kasota, MN | 2 GWh | Nov 2018 | Dec 2025 | Solar |
| Hyacinth Solar, LLC | Geronimo Power | Northfield, MN | 2 GWh | Sep 2020 | Dec 2025 | Solar |
| Canopus Community Solar | Geronimo Power | Belgrade, MN | 2 GWh | Feb 2019 | Dec 2025 | Solar |
| Geranium Solar, LLC | Geronimo Power | Raymond, MN | 2 GWh | Sep 2020 | Dec 2025 | Solar |
| Kerria Solar, LLC | Geronimo Power | Renville, MN | 2 GWh | Sep 2020 | Dec 2025 | Solar |
| Capricornus Community Solar Garden | Geronimo Power | Paynsville, MN | 2 GWh | Dec 2018 | Dec 2025 | Solar |
| Hydra Community Solar Garden, LLC (CSG) | Geronimo Power | Dundas, MN | 2 GWh | Apr 2020 | Dec 2025 | Solar |
| Prairie Wolf Solar LLC | Geronimo Power | North Ashmore, IL | 378 GWh | Oct 2021 | Jul 2026 | Solar |
| Rengstorf Solar CSG | Geronimo Power | Coutland, MN | 9 GWh | Oct 2017 | Dec 2025 | Solar |
| Lindstrom Solar CSG | Geronimo Power | Lindstrom, MN | 5 GWh | Mar 2018 | Dec 2025 | Solar |
| Koppelman Sun CSG | Geronimo Power | Eagle Lake, MN | 9 GWh | Oct 2017 | Dec 2025 | Solar |
| Johnson Solar CSG | Geronimo Power | Edgerton, MN | 9 GWh | Dec 2017 | Dec 2025 | Solar |
| DodgeSun CSG | Geronimo Power | Kasson, MN | 9 GWh | Nov 2017 | Dec 2025 | Solar |
| Camellia Solar, LLC | Geronimo Power | Glenwood, MN | 2 GWh | Nov 2020 | Dec 2025 | Solar |
| Altair Community Solar Garden | Geronimo Power | New Richmond, MN | 2 GWh | Jan 2019 | Dec 2025 | Solar |
| Bellflower Solar, LLC | Geronimo Power | Brooten, MN | 2 GWh | Nov 2020 | Dec 2025 | Solar |
| Kramer Solar CSG | Geronimo Power | Hector, MN | 6 GWh | Nov 2017 | Dec 2025 | Solar |
| Cassiopeia Community Solar | Geronimo Power | Glenwood, MN | 2 GWh | Feb 2019 | Dec 2025 | Solar |
| Sagitta Community Solar | Geronimo Power | Clara City, MN | 2 GWh | Nov 2018 | Dec 2025 | Solar |
| Iris Solar, LLC (MN) | Geronimo Power | Nicollet, MN | 2 GWh | Sep 2020 | Dec 2025 | Solar |
| Bingham Solar, LLC | Geronimo Power | St. Johns, MI | 42 GWh | Nov 2020 | Dec 2025 | Solar |
| Marigold Community Solar Garden, LLC | Geronimo Power | Waterville, MN | 2 GWh | Dec 2020 | Dec 2025 | Solar |
| Westport Community Solar, LLC | Geronimo Power | Lake Lillian, MN | 2 GWh | Dec 2020 | Dec 2025 | Solar |
| Aster Community Solar Garden, LLC | Geronimo Power | Raymond, MN | 2 GWh | Sep 2020 | Dec 2025 | Solar |
| Allium Community Solar Garden, LLC | Geronimo Power | Paynesville, MN | 2 GWh | Dec 2020 | Dec 2025 | Solar |
| Temperance Solar, LLC | Geronimo Power | Erie, MI | 42 GWh | Nov 2020 | Dec 2025 | Solar |
| Crocker Wind Farm | Geronimo Power | Conde, SD | 798 GWh | Oct 2019 | Jul 2026 | Wind |
| Libra Community Solar | Geronimo Power | Glenwood, MN | 2 GWh | Oct 2018 | Dec 2025 | Solar |
| Aquarius Community Solar | Geronimo Power | Tracy, MN | 2 GWh | Apr 2019 | Dec 2025 | Solar |
| Marmas Solar CSG | Geronimo Power | St. Cloud, MN | 5 GWh | Mar 2018 | Dec 2025 | Solar |
| Crux Community Solar | Geronimo Power | Kasson, MN | 2 GWh | Dec 2018 | Dec 2025 | Solar |
| Leo Community Solar | Geronimo Power | Hadley, MN | 2 GWh | Nov 2018 | Dec 2025 | Solar |
| Deneb Community Solar | Geronimo Power | Belgrade, MN | 2 GWh | Apr 2019 | Dec 2025 | Solar |
| Honeysuckle Solar, LLC | Geronimo Power | Lester Prairie, MN | 2 GWh | Dec 2020 | Dec 2025 | Solar |
| Kaus Community Solar | Geronimo Power | Claremont, MN | 2 GWh | Dec 2018 | Dec 2025 | Solar |
| Auriga Community Solar | Geronimo Power | Slayton, MN | 2 GWh | Nov 2018 | Dec 2025 | Solar |
| Lantana Solar, LLC | Geronimo Power | Glenwood, MN | 2 GWh | Dec 2020 | Dec 2025 | Solar |
| WasecaSun | Geronimo Power | Waseca, MN | 9 GWh | Jan 2018 | Dec 2025 | Solar |
| Coral Bells Solar, LLC | Geronimo Power | North Branch, MN | 2 GWh | Nov 2020 | Dec 2025 | Solar |
| Primrose Solar, LLC | Geronimo Power | Mankato, MN | 2 GWh | Mar 2021 | Dec 2025 | Solar |
| Gibson City Energy Center LLC | Gibson City Energy Center LLC | Gibson City, IL | 77 GWh | May 2000 | Dec 2025 | Natural Gas |
| Gibson Solar | Gibson Solar, LLC | Princeton, IN | 380 GWh | Jul 2025 | Jul 2026 | Solar |
| GL Wind | GL Wind LLC | Lewiston, MN | 10 GWh | Nov 2011 | Dec 2025 | Wind |
| Glacier Sands Wind Power, LLC | Glacier Sands Wind Power, LLC | Mason City, IL | 644 GWh | Oct 2021 | Jul 2026 | Wind |
| Glencoe | Glencoe Light & Power Comm | Glencoe, MN | 146 MWh | May 1957 | Dec 2025 | Distillate Fuel Oil : 99.7% |
| Gowrie | Gowrie Municipal Utilities - (IA) | Gowrie, IA | 3 MWh | Dec 2012 | Dec 2025 | Distillate Fuel Oil |
| Grant County Wind LLC | Grant County Wind, LLC | Woodstock, MN | 53 GWh | Jul 2010 | Dec 2025 | Wind |
| Plant 31 Paper Mill | Graphic Packaging International | West Monroe, LA | 515 GWh | Dec 1963 | Dec 2025 | Natural Gas : 62.4% Black Liquor : 25.3% Wood/Wood Waste Solids : 12.3% |
| Beaver Island | Great Lakes Energy Coop | Beaver Island, MI | 50 MWh | Aug 2000 | Dec 2025 | Distillate Fuel Oil |
| Great Pathfinder Wind | Great Pathfinder Wind | Stratford, IA | 726 GWh | Jan 2023 | Jul 2026 | Wind |
| Spiritwood Station | Great River Energy | Spiritwood, ND | 263 GWh | Oct 2014 | Jul 2026 | Natural Gas : 60.6% Refined Coal : 39.4% |
| Rock Lake CT | Great River Energy | Pine City, MN | 449 MWh | Mar 1978 | Dec 2025 | Distillate Fuel Oil |
| St Bonifacius | Great River Energy | St. Bonifacius, MN | 3 GWh | May 1978 | Sep 2025 | Distillate Fuel Oil |
| Lakefield Junction | Great River Energy | Trimont, MN | 95 GWh | May 2001 | Dec 2025 | Natural Gas : 99.8% |
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 |