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 | Mar 2026 |
| Annual Generation | 659.4 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 | 36.2% Coal | 28.4% Wind | 14.7% Nuclear | 13.9% Solar | 4.8% Water | 1.5% Other Fuel | 0.5% |
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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 |
|---|---|---|---|---|---|---|
| Coughlin Power Station | Cleco Power LLC | St Landry, LA | 3 TWh | Mar 1961 | Dec 2025 | Natural Gas |
| Teche | Cleco Power LLC | Baldwin, LA | 21 GWh | Jun 1953 | Dec 2024 | Natural Gas |
| Acadia Energy Center | Cleco Power LLC | Eunice, LA | 6 TWh | Jun 2002 | Dec 2025 | Natural Gas |
| Clearwater Paper APP CB | Clearwater Paper Corporation | Arkansas City, AR | 126 GWh | Oct 1977 | Dec 2024 | Black Liquor : 61.7% Natural Gas : 38.1% |
| Clear Garden CSG | Clear Garden LLC | Waseca, MN | 2 GWh | Aug 2019 | Dec 2024 | Solar |
| Clay FC | Clay FC, LLC | Louisville, IL | 4 GWh | Jun 2021 | Dec 2024 | Solar |
| Crossroads Energy Center | Clarksdale Public Utilities | Clarksdale, MS | 124 GWh | Jun 2002 | Nov 2024 | Natural Gas |
| Clara City Solar | Clara City Solar LLC | Clara City, MN | 2 GWh | Aug 2019 | Dec 2024 | Solar |
| Syncarpha Clara City CSG I (Stamer) | Clara City CSG I, LLC | Clara City, MN | 2 GWh | Nov 2018 | Dec 2024 | Solar |
| Jonesboro CWL Solar Park | City Water and Light Plant | Jonesboro, AR | 22 GWh | May 2022 | Dec 2024 | Solar |
| Jonesboro City Water & Light Plant | City Water and Light Plant | Jonesboro, AR | 78 GWh | Jun 1999 | Dec 2024 | Natural Gas : 99.3% Distillate Fuel Oil : 0.7% |
| Municipal Power Plant | City of Zeeland - (MI) | Zeeland, MI | 63 MWh | May 2002 | Dec 2024 | Natural Gas |
| Riley Generating Station | City of Zeeland - (MI) | Zeeland, MI | 169 MWh | Jun 2006 | Dec 2024 | Natural Gas |
| Worthington | City of Worthington - (MN) | Worthington, MN | 9 GWh | Jan 2002 | Dec 2024 | Wind : 98.9% Distillate Fuel Oil : 1.1% |
| Winterset | City of Winterset - (IA) | Winterset, IA | 35 MWh | Jun 1956 | Dec 2024 | Natural Gas : 55.9% Distillate Fuel Oil : 44.1% |
| Windom | City of Windom | Windom, MN | 23 MWh | May 1980 | Dec 2024 | Distillate Fuel Oil |
| Wilton | City of Wilton - (IA) | Wilton, IA | 9 MWh | Dec 1991 | Dec 2024 | Distillate Fuel Oil |
| Westbrook | City of Westbrook | Westbrook, MN | 9 MWh | Sep 2003 | Dec 2024 | Distillate Fuel Oil |
| West Liberty | City of West Liberty - (IA) | West Liberty, IA | 38 MWh | Sep 1974 | Dec 2024 | Distillate Fuel Oil |
| West Bend | City of West Bend | West Bent, IA | 174 MWh | Nov 1954 | Dec 2024 | Distillate Fuel Oil |
| Wells IC | City of Wells - (MN) | Wells, MN | 180 MWh | Oct 1950 | Dec 2024 | Natural Gas : 64.3% Distillate Fuel Oil : 35.7% |
| Webster City | City of Webster City - (IA) | Webster City, IA | 809 MWh | Mar 1972 | Dec 2024 | Distillate Fuel Oil |
| Waterloo | City of Waterloo - (IL) | Waterloo, IL | 491 MWh | May 1946 | Dec 2024 | Natural Gas : 68.9% Distillate Fuel Oil : 31.1% |
| Villisca Municipal Power Plant | City of Villisca - (IA) | Villisca, IA | 7 MWh | May 2003 | Dec 2024 | Distillate Fuel Oil |
| Truman | City of Truman | Truman, MN | 39 MWh | Aug 1938 | Dec 2024 | Distillate Fuel Oil |
| Traer Wind Project | City of Traer - (IA) | Traer, IA | 6 GWh | Sep 2010 | Dec 2024 | Wind |
| Tipton | City of Tipton - (IA) | Tipton, IA | 69 MWh | Oct 1955 | Dec 2024 | Distillate Fuel Oil |
| Thief River Falls | City of Thief River Falls | Thief River Falls, MN | 3 GWh | Jul 1927 | Dec 2024 | Water : 99.6% |
| Sumner | City of Sumner - (IA) | Sumner, IA | 175 MWh | Jul 1956 | Dec 2024 | Distillate Fuel Oil |
| Sullivan (IL) | City of Sullivan - (IL) | Sullivan, IL | 284 MWh | May 1946 | Dec 2025 | Distillate Fuel Oil |
| Gilliam South | City of Stuart - (IA) | Stuart, IA | 2 MWh | Jan 2001 | Dec 2024 | Distillate Fuel Oil |
| South Strawberry | City of Strawberry Point | Strawberry Point, IA | 13 MWh | Dec 2001 | Dec 2024 | Distillate Fuel Oil |
| Story City | City of Story City - (IA) | Story City, IA | 97 MWh | Dec 1963 | Dec 2024 | Distillate Fuel Oil : 89.6% Natural Gas : 10.4% |
| State Center | City of State Center - (IA) | State Center, IA | 75 MWh | Jul 1972 | Dec 2024 | Distillate Fuel Oil : 63.9% Natural Gas : 36.1% |
| St Louis | City of St Louis - (MI) | St. Louis, MI | 29 MWh | Dec 1918 | Dec 2024 | Water : 75.9% Distillate Fuel Oil : 24.1% |
| St James | City of St James - (MN) | St James, MN | 36 MWh | Jun 2002 | Dec 2024 | Distillate Fuel Oil |
| St. Charles Power Plant | City of St Charles - (MN) | St. Charles, MN | 71 MWh | Nov 2004 | Dec 2024 | Distillate Fuel Oil |
| Reynolds | City of Springfield - (IL) | Springfield, IL | 81 MWh | Oct 1970 | Dec 2024 | Distillate Fuel Oil |
| Interstate | City of Springfield - (IL) | Springfield, IL | 51 GWh | Aug 1997 | Dec 2024 | Natural Gas : 99.9% |
| Factory | City of Springfield - (IL) | Springfield, IL | 79 MWh | Jul 1973 | Oct 2024 | Distillate Fuel Oil |
| Dallman | City of Springfield - (IL) | Springfield, IL | 901 GWh | May 1968 | Dec 2025 | Bituminous Coal : 99.7% |
| Spencer Gas Turbine | City of Spencer - (IA) | Spencer, IA | 651 MWh | Dec 1969 | Dec 2024 | Kerosene |
| Sibley One | City of Sibley - (IA) | Sibley, IA | 42 MWh | Aug 1971 | Dec 2024 | Distillate Fuel Oil : 58.9% Natural Gas : 41.1% |
| Sibley No Two | City of Sibley - (IA) | Sibley, IA | 38 MWh | Nov 1987 | Dec 2024 | Distillate Fuel Oil : 67.1% Natural Gas : 32.9% |
| Rockford | City of Rockford- (IA) | Rockford, IA | 4 MWh | Jul 1951 | Dec 2024 | Distillate Fuel Oil |
| Avenue A Generator Sets | City of Rock Falls - (IL) | Rock Falls, IL | 161 MWh | Aug 2000 | Dec 2024 | Distillate Fuel Oil |
| Upper Sterling | City of Rock Falls - (IL) | Rock Falls, IL | 9 GWh | May 1988 | Dec 2024 | Water |
| Industrial Park | City of Rock Falls - (IL) | Rock Falls, IL | 615 MWh | Jun 2001 | Dec 2024 | Distillate Fuel Oil |
| Water Reclamation Plant | City of Rochester | Rochester, MN | 4 GWh | Feb 2003 | Dec 2024 | Other Biomass Gas |
| Red Bud | City of Red Bud - (IL) | Red Bud, IL | 121 MWh | Feb 1959 | Dec 2024 | Distillate Fuel Oil |
| Princeton (IL) | City of Princeton - (IL) | Princeton, IL | 434 MWh | Jun 1953 | Dec 2024 | Natural Gas : 99.8% |
| Preston (IA) | City of Preston | Preston, IA | 9 MWh | Nov 1968 | Dec 2024 | Natural Gas : 89.7% Distillate Fuel Oil : 10.3% |
| Frank Jenkins | City of Portland - (MI) | Portland, MI | 59 MWh | Apr 1950 | Dec 2024 | Distillate Fuel Oil : 81.8% Natural Gas : 18.2% |
| West Diesel Generation Unit | City of Pocahontas - (IA) | Pocahontas, IA | 23 MWh | May 2006 | Dec 2024 | Distillate Fuel Oil |
| Peru (IN) | City of Peru - (IN) | Peru, IN | 6 MWh | May 1949 | Dec 2024 | Distillate Fuel Oil |
| City of Peru Plank Road Generating Station | City of Peru - (IL) | Peru, IL | 17 GWh | Sep 1968 | Dec 2025 | Water : 98.7% Distillate Fuel Oil : 1.2% |
| Pella Peaking | City of Pella - (IA) | Pella, IA | 227 MWh | May 2003 | Dec 2024 | Distillate Fuel Oil |
| Panora | City of Panora - (IA) | Panora, IA | 5 MWh | Dec 1987 | Dec 2024 | Distillate Fuel Oil |
| Owatonna | City of Owatonna - (MN) | Owatonna, MN | 1 GWh | Mar 1982 | Dec 2023 | Natural Gas |
| Osage (IA) | City of Osage - (IA) | Osage, IA | 6 GWh | Aug 1963 | Dec 2024 | Wind : 81.2% Solar : 18.8% |
| Ogden | City of Ogden - (IA) | Ogden, IA | 10 MWh | Jun 1951 | Dec 2024 | Distillate Fuel Oil |
| Norway (MI) | City of Norway | Norway, MI | 27 GWh | May 1905 | Dec 2024 | Water |
| Murray | City of North Little Rock - (AR) | North Little Rock, AR | 114 GWh | Sep 1988 | Dec 2024 | Water |
| New Lisbon | City of New Lisbon | New Lisbon, WI | 19 MWh | Dec 1965 | Dec 2024 | Distillate Fuel Oil |
| Mountain Lake | City of Mountain Lake - (MN) | Mountain Lake, MN | 2 GWh | Apr 1954 | Dec 2024 | Wind : 97.7% Natural Gas : 1.8% |
| Montezuma | City of Montezuma - (IA) | Montezuma, IA | 119 MWh | Jul 1940 | Dec 2024 | Distillate Fuel Oil : 63.8% Natural Gas : 36.2% |
| McGregor | City of McGregor- (IA) | McGregor, IA | 7 MWh | Nov 1941 | Dec 2024 | Distillate Fuel Oil |
| Marshfield Utilities Gas Plant | City of Marshfield - (WI) | Marshfield, WI | 4 GWh | May 2011 | Dec 2024 | Natural Gas |
| 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 |
| James R Smith | City of Marquette - (MI) | Marquette, MI | 13 GWh | Dec 1918 | Dec 2024 | Water |
| Plant Four | City of Marquette - (MI) | Marquette, MI | 2 MWh | Apr 1979 | 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% |
| Marceline | City of Marceline - (MO) | Marceline, MO | 4 MWh | Jul 1989 | Dec 2024 | Distillate Fuel Oil |
| Chatham | City of Lowell - (MI) | Lowell, MI | 42 MWh | Aug 2013 | Dec 2024 | Natural Gas |
| Lenox | City of Lenox - (IA) | Lenox, IA | 39 MWh | Aug 1948 | Dec 2024 | Distillate Fuel Oil |
| Lamoni Municipal Utilities | City of Lamoni - (IA) | Lamoni, IA | 86 MWh | Feb 1940 | Dec 2024 | Distillate Fuel Oil |
| Lakefield Utilities | City of Lakefield - (MN) | Lakefield, MN | 6 MWh | Jan 1985 | Dec 2024 | Distillate Fuel Oil |
| Lake Park | City of Lake Park - (IA) | Lake Park, IA | 46 MWh | Mar 2005 | Dec 2024 | Distillate Fuel Oil |
| Lake Mills | City of Lake Mills | Lake Mills, IA | 38 MWh | Dec 1955 | Dec 2024 | Distillate Fuel Oil |
| Lake Crystal | City of Lake Crystal - (MN) | Lake Crystal, MN | 20 MWh | Apr 1952 | Dec 2024 | Distillate Fuel Oil |
| Little Chute | City of Kaukauna | Combined Locks, WI | 24 GWh | May 1948 | Dec 2024 | Water |
| New Badger | City of Kaukauna | Kaukauna, WI | 44 GWh | Dec 2013 | Dec 2025 | Water |
| Kaukauna Gas Turbine | City of Kaukauna | Kaukauna, WI | 2 GWh | Apr 1969 | Dec 2024 | Natural Gas |
| Combined Locks | City of Kaukauna | Combined Locks, WI | 43 GWh | Jan 1988 | Dec 2024 | Water |
| Rapide Croche | City of Kaukauna | Kaukana, WI | 17 GWh | Dec 1925 | Dec 2024 | Water |
| Kimberly Mill | City of Kaukauna | Appleton, WI | 14 GWh | Dec 1925 | Dec 2024 | Water |
| Kaukauna City Hydro | City of Kaukauna | Kaukauna, WI | 23 GWh | Nov 1940 | Dec 2024 | Water |
| Kahoka | City of Kahoka | Kahoka, MO | 5 MWh | Dec 1940 | Dec 2024 | Distillate Fuel Oil |
| Janesville | City of Janesville - (MN) | Janesville, MN | 20 MWh | Apr 1955 | Dec 2024 | Distillate Fuel Oil : 97.0% Natural Gas : 3.0% |
| Jackson (MO) | City of Jackson - (MO) | Jackson, MO | 146 MWh | Dec 1935 | Dec 2024 | Distillate Fuel Oil : 58.6% Natural Gas : 41.4% |
| Hopkinton | City of Hopkinton - (IA) | Hopkinton, IA | 11 MWh | Aug 1973 | Dec 2024 | Distillate Fuel Oil |
| 491 E 48th Street | City of Holland | Holland, MI | 92 GWh | Apr 1992 | Dec 2024 | Natural Gas |
| Holland Energy Park | City of Holland | Holland, MI | 893 GWh | May 2017 | Dec 2024 | Natural Gas |
| Hillsboro | City of Hillsboro - (ND) | Hillsboro, ND | 12 MWh | Jun 2002 | Dec 2024 | Distillate Fuel Oil |
| Highland | City of Highland | Highland, IL | 187 MWh | Feb 1967 | Dec 2024 | Distillate Fuel Oil |
| Halstad | City of Halstad - (MN) | Halstad, MN | 11 MWh | Aug 2007 | Dec 2024 | Distillate Fuel Oil |
| North Generation Plant | City of Greenfield - (IA) | Greenfield, IA | 105 MWh | Dec 2001 | Dec 2024 | Distillate Fuel Oil |
| Downtown Generation Plant | City of Greenfield - (IA) | Greenfield, IA | 58 MWh | Jun 2020 | Dec 2024 | Distillate Fuel Oil |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #60 | Alcoa Power Generating, Inc. - Yadkin Division | 610.0 GWh | 4 |
| #27 | Associated Electric Cooperative, Inc. | 24.1 TWh | 47 |
| #13 | Duke Energy Carolinas | 112.4 TWh | 565 |
| #52 | Duke Energy Progress West | 4.3 TWh | 10 |
| #23 | Louisville Gas and Electric Company and Kentucky Utilities Company | 34.3 TWh | 25 |
| #1 | PJM Interconnection, LLC | 879.0 TWh | 2,465 |
| #6 | Southern Company Services, Inc. - Trans | 250.9 TWh | 417 |
| #5 | Southwest Power Pool | 300.1 TWh | 835 |
| #51 | Southwestern Power Administration | 4.8 TWh | 34 |
| #9 | Tennessee Valley Authority | 162.4 TWh | 204 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #1 | PJM Interconnection, LLC | 879.0 TWh | 2,465 |
| #2 | Midcontinent Independent System Operator, Inc. | 659.4 TWh | 2,831 |
| #3 | Electric Reliability Council of Texas, Inc. | 484.9 TWh | 1,313 |
| #5 | Southwest Power Pool | 300.1 TWh | 835 |
| #6 | Southern Company Services, Inc. - Trans | 250.9 TWh | 417 |
| #7 | California Independent System Operator | 179.9 TWh | 2,075 |
| #9 | Tennessee Valley Authority | 162.4 TWh | 204 |
| #10 | Florida Power & Light Co. | 150.5 TWh | 187 |
| #12 | New York Independent System Operator | 134.0 TWh | 1,211 |
| #13 | Duke Energy Carolinas | 112.4 TWh | 565 |