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 | Apr 2026 |
| Annual Generation | 664.4 TWh |
| Power Plants | 2,831 |
| Utilities | 1,296 |
| Ranked #2 out of 65 in terms of net annual generation | |
| Ranked #2 out of 54 in terms of annual generation from natural gas | |
| Power Plant Types | Natural Gas | 36.9% Coal | 27.6% Wind | 14.8% Nuclear | 13.6% Solar | 5% Water | 1.4% Other Fuel | 0.5% |
Map of Midcontinent Independent System Operator, Inc.
Register Now for Comprehensive Access
Subscribe now to access all power plant data, utility information, FERC EQR data, and more for Midcontinent Independent System Operator, Inc..
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 |
|---|---|---|---|---|---|---|
| Pulliam | Wisconsin Public Service Corp | Green Bay, WI | 111 GWh | Aug 1949 | Feb 2026 | Natural Gas |
| Potato Rapids | Wisconsin Public Service Corp | Town of Porterfield, WI | 4 GWh | Apr 1921 | Dec 2024 | Water |
| Weston | Wisconsin Public Service Corp | Rothschild, WI | 5 TWh | Nov 1954 | Feb 2026 | Subbituminous Coal : 99.4% Natural Gas : 0.6% |
| Sandstone Rapids | Wisconsin Public Service Corp | Town of Stephenson, WI | 9 GWh | Dec 1924 | Dec 2024 | Water |
| Merrill | Wisconsin Public Service Corp | Merrill, WI | 4 GWh | Feb 1917 | Dec 2024 | Water |
| High Falls (WI) | Wisconsin Public Service Corp | Town of Stephenson, WI | 16 GWh | Jul 1910 | Dec 2024 | Water |
| Wausau | Wisconsin Public Service Corp | Wausau, WI | 19 GWh | Feb 1921 | Dec 2024 | Water |
| West Marinette | Wisconsin Public Service Corp | Peshtigo, WI | 31 GWh | May 1971 | Dec 2024 | Natural Gas |
| De Pere Energy Center | Wisconsin Public Service Corp | De Pere, WI | 138 GWh | May 1999 | Dec 2024 | Natural Gas : 68.9% Distillate Fuel Oil : 31.1% |
| Crane Creek Wind Energy Center | Wisconsin Public Service Corp | Riceville, IA | 302 GWh | Nov 2009 | Dec 2024 | Wind |
| Hat Rapids | Wisconsin Public Service Corp | Rhinelander, WI | 6 GWh | May 1923 | Dec 2024 | Water |
| Grandfather Falls | Wisconsin Public Service Corp | Irma, WI | 80 GWh | Nov 1938 | Dec 2024 | Water |
| Caldron Falls | Wisconsin Public Service Corp | Town of Stephenson, WI | 14 GWh | Oct 1924 | Dec 2024 | Water |
| Alexander | Wisconsin Public Service Corp | Merrill, WI | 19 GWh | Dec 1924 | Dec 2024 | Water |
| Badger Hollow I | Wisconsin Public Service Corp | Montfort, WI | 203 GWh | Oct 2021 | Feb 2026 | Solar |
| Two Creeks Solar | Wisconsin Public Service Corp | Two Rivers, WI | 193 GWh | Oct 2020 | Feb 2026 | Solar |
| Castle Rock | Wisconsin River Power Company | Adams, WI | 92 GWh | Jul 1950 | Dec 2024 | Water |
| Petenwell | Wisconsin River Power Company | Necedah, WI | 108 GWh | Jul 1949 | Dec 2024 | Water |
| Tazewell Gas Recovery | WM Illinois Renewable Energy LLC | East Peoria, IL | 13 GWh | Jun 1989 | Dec 2024 | Landfill Gas |
| Milam Gas Recovery | WM Illinois Renewable Energy LLC | East St. Lois, IL | 19 GWh | Mar 1991 | Dec 2024 | Natural Gas |
| Lake Mills Gas Recovery | WM Renewable Energy LLC | Lake Mills, IA | 25 GWh | Feb 2006 | Dec 2024 | Landfill Gas |
| Spruce Ridge Gas Recovery | WM Renewable Energy LLC | Glencoe, MN | 22 GWh | Mar 2008 | Dec 2024 | Landfill Gas |
| Waste Management Northern Oaks LFGTE | WM Renewable Energy LLC | Harrison, MI | 6 GWh | Oct 2010 | Dec 2024 | Landfill Gas |
| Waste Management Eco Vista LFGTE | WM Renewable Energy LLC | Springdale, AR | 22 GWh | Oct 2010 | Dec 2024 | Natural Gas |
| Omega Hills Gas Recovery | WM Renewable Energy LLC | Germantown, WI | 79 GWh | Nov 1985 | Feb 2026 | Landfill Gas |
| Metro Gas Recovery | WM Renewable Energy LLC | Franklin, WI | 37 GWh | Nov 1985 | Dec 2024 | Landfill Gas |
| Berlin Landfill Gas | WM Renewable Energy LLC | Berlin, WI | 14 GWh | Jul 2001 | Dec 2024 | Landfill Gas |
| Five Oaks Gas Recovery | WM Renewable Energy LLC | Taylorville, IL | 24 GWh | Jan 2008 | Dec 2024 | Landfill Gas |
| Timberline Trail Gas Recovery | WM Renewable Energy LLC | Weyerhaeser, WI | 19 GWh | Jan 2006 | Dec 2024 | Landfill Gas |
| Metro Methane Recovery Facility | WM Renewable Energy LLC | Mitchellville, IA | 85 GWh | Dec 1997 | Feb 2026 | Landfill Gas |
| Pheasant Run Landfill Gas Recovery | WM Renewable Energy LLC | Bristol, WI | 48 GWh | Jan 1992 | Dec 2024 | Landfill Gas |
| Two Pine Landfill Gas Recovery | WM Renewable Energy LLC | North Little Rock, AR | 27 GWh | Sep 2006 | Dec 2024 | Landfill Gas |
| Ridgeview | WM Renewable Energy LLC | Whitelaw, WI | 36 GWh | Aug 2002 | Dec 2024 | Landfill Gas |
| Deertrack Park Gas Recovery | WM Renewable Energy LLC | Watertown, WI | 37 GWh | Jan 2006 | Dec 2024 | Landfill Gas |
| Venice Resources Gas Recovery | WM Renewable Energy LLC | Lennon, MI | 11 GWh | Feb 1992 | Dec 2024 | Landfill Gas |
| Pine Tree Acres WM LFGTE | WM Renewable Energy LLC | Lenox, MI | 89 GWh | Feb 2012 | Feb 2026 | Landfill Gas |
| Eagle Valley (MI) | WM Renewable Energy LLC | Orion, MI | 23 GWh | Jun 2011 | Dec 2024 | Landfill Gas |
| Wolf Run Solar | Wolf Run Solar LLC | Chapin, IL | 315 GWh | Oct 2024 | Feb 2026 | Solar |
| Wollan Garden Solar | Wollan Garden LLC | Starbuck, MN | 1 GWh | Jun 2019 | Dec 2024 | Solar |
| Alpine Power Plant | Wolverine Power Supply Coop | Elmira, MI | 499 GWh | May 2016 | Dec 2024 | Natural Gas |
| Sumpter | Wolverine Power Supply Coop | Belleville, MI | 190 GWh | Jun 2002 | Dec 2024 | Natural Gas |
| Gaylord - Wolverine | Wolverine Power Supply Coop | Gaylord, MI | 23 GWh | May 2001 | Dec 2024 | Natural Gas |
| George Johnson | Wolverine Power Supply Coop | Hersey, MI | 34 GWh | Aug 1993 | Dec 2024 | Natural Gas |
| Claude Vandyke | Wolverine Power Supply Coop | Dorr, MI | 5 GWh | Dec 1966 | Dec 2024 | Natural Gas |
| Vestaburg | Wolverine Power Supply Coop | Vestaburg, MI | 2 GWh | Dec 1958 | Dec 2024 | Natural Gas |
| Tower | Wolverine Power Supply Coop | Tower, MI | 62 MWh | Feb 1971 | Dec 2024 | Distillate Fuel Oil |
| Wolverine Solar | Wolverine Solar, LLC | Maynard, MN | 2 GWh | Oct 2023 | Dec 2024 | Solar |
| Wolverine | Wolverine Wind Energy, LLC | Greenfield, IA | 5 GWh | Sep 2010 | Dec 2024 | Wind |
| Workman Road Solar Farm, LLC | Workman Road Solar Farm, LLC | Lake City, MI | 4 GWh | Nov 2020 | Dec 2024 | Solar |
| Island Street Peaking Plant | WPPI Energy | Kaukauna, WI | 11 GWh | May 2004 | Dec 2024 | Natural Gas |
| Wyandotte | Wyandotte Municipal Serv Comm | Wyandotte, MI | 110 MWh | Dec 1947 | Feb 2026 | Distillate Fuel Oil |
| Zeeland Farm Services | Zeeland Farm Services | Zeeland, MI | 13 GWh | Feb 2006 | Dec 2023 | Other Biomass Gas |
| Zumbro Solar Garden | Zumbro Garden LLC | Kasson, MN | 2 GWh | Mar 2020 | Dec 2024 | Solar |
| Zumbro Community Solar Garden | Zumbro Solar LLC | Zumbrota, MN | 2 GWh | Mar 2018 | Dec 2024 | Solar |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #60 | Alcoa Power Generating, Inc. - Yadkin Division | 582.3 GWh | 4 |
| #27 | Associated Electric Cooperative, Inc. | 23.9 TWh | 47 |
| #13 | Duke Energy Carolinas | 112.5 TWh | 565 |
| #52 | Duke Energy Progress West | 4.4 TWh | 10 |
| #23 | Louisville Gas and Electric Company and Kentucky Utilities Company | 34.0 TWh | 25 |
| #1 | PJM Interconnection, LLC | 881.5 TWh | 2,465 |
| #6 | Southern Company Services, Inc. - Trans | 250.9 TWh | 417 |
| #5 | Southwest Power Pool | 302.9 TWh | 835 |
| #51 | Southwestern Power Administration | 4.6 TWh | 34 |
| #9 | Tennessee Valley Authority | 163.1 TWh | 204 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 881.5 TWh | 2,465 |
| #2 | Midcontinent Independent System Operator, Inc. | 664.4 TWh | 2,831 |
| #3 | Electric Reliability Council of Texas, Inc. | 488.2 TWh | 1,313 |
| #5 | Southwest Power Pool | 302.9 TWh | 835 |
| #6 | Southern Company Services, Inc. - Trans | 250.9 TWh | 417 |
| #7 | California Independent System Operator | 176.8 TWh | 2,075 |
| #9 | Tennessee Valley Authority | 163.1 TWh | 204 |
| #10 | Florida Power & Light Co. | 150.9 TWh | 187 |
| #12 | New York Independent System Operator | 134.4 TWh | 1,211 |
| #13 | Duke Energy Carolinas | 112.5 TWh | 565 |