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 AuthorityMidcontinent Independent System Operator, Inc.
States Arkansas Illinois Indiana Iowa Kentucky Louisiana Michigan Minnesota Mississippi Missouri Montana North Dakota South Dakota Texas Wisconsin
Last Update Jul 2026
Annual Generation 669.4 TWh
Power Plants3,038
Utilities1,345
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 | 26.5% Wind | 14.9% Nuclear | 13.9% Solar | 5.7% Water | 1.4% Other Fuel | 0.6%

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

List of All Midcontinent Independent System Operator, Inc. Power Plants

Displaying Results 1 to 100 of 2,269
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
Lake HallieStandard SolarChippewa Falls, WI1 MWhNov 2024Dec 2024 Solar
HarlanHarlan Municipal Utilities - (IA)Harlan, IA1 MWhJun 2001Dec 2025 Distillate Fuel Oil
Dayton (IA)City of Dayton - (IA)Dayton, IA2 MWhSep 2000Dec 2025 Distillate Fuel Oil
Brown County Wind TurbineAdams Electric CooperativeMount Sterling, IL3 MWhAug 2011Feb 2025 Wind
GowrieGowrie Municipal Utilities - (IA)Gowrie, IA3 MWhDec 2012Dec 2025 Distillate Fuel Oil
West Diesel Generation UnitCity of Pocahontas - (IA)Pocahontas, IA4 MWhMay 2006Dec 2025 Distillate Fuel Oil
Dike City Power PlantCity of Dike - (IA)Dike, IA4 MWhMay 2005Dec 2025 Distillate Fuel Oil
Gilliam SouthCity of Stuart - (IA)Stuart, IA4 MWhJan 2001Dec 2025 Distillate Fuel Oil
Melrose 2Melrose Public UtilitiesMelrose, MN4 MWhFeb 2014Dec 2025 Distillate Fuel Oil
Rantoul SolarAltorfer Inc.Rantoul, IL5 MWhNov 2016Dec 2025 Solar
KahokaCity of Kahoka - (MO)Kahoka, MO5 MWhDec 1940Dec 2024 Distillate Fuel Oil
Washington IslandWashington Island El Coop, IncWashington Island, WI5 MWhNov 1945Dec 2025 Distillate Fuel Oil
Traer EastCity of Traer - (IA)Tracer, IA6 MWhFeb 2004Dec 2025 Distillate Fuel Oil
FairfaxCity of Fairfax - (MN)Fairfax, MN6 MWhJul 2001Dec 2025 Distillate Fuel Oil
Peru (IN)City of Peru - (IN)Peru, IN6 MWhMay 1949Dec 2024 Distillate Fuel Oil
CorningCity of Corning - (IA)Corning, IA6 MWhMay 1975Dec 2025 Distillate Fuel Oil
RockfordCity of Rockford- (IA)Rockford, IA6 MWhJul 1951Dec 2025 Distillate Fuel Oil
Adams Road SolarWisconsin Electric Power CoFranksville, WI6 MWhNov 2025Dec 2025 Solar
Alliant SBG 9802 ToyotaIndustrial Energy Applications IncCedar Rapids, IA6 MWhNov 1998Oct 2025 Natural Gas
Alliant SBD 9206 DonaldsonIndustrial Energy Applications IncCresco, IA7 MWhOct 1995Dec 2025 Distillate Fuel Oil
Evonik Industries AGEvonik Degussa CorporationLafayette, IN7 MWhApr 1992Dec 2024 Distillate Fuel Oil
Walton Street SubstationCity of Farmington - (MO)Farmington, MO7 MWhDec 2002Dec 2025 Distillate Fuel Oil
Brooklyn City North PlantCity of Brooklyn - (IA)Brooklyn, IA7 MWhApr 2002Dec 2025 Distillate Fuel Oil
EarlvilleCity of Earlville - (IA)Earlville, IA7 MWhJun 2001Dec 2025 Distillate Fuel Oil
TowandaDimension Energy LLCShirley, IL7 MWhNov 2025Dec 2025 Solar
St LouisCity of St Louis - (MI)St. Louis, MI8 MWhDec 1918Dec 2025 Distillate Fuel Oil
PanoraCity of Panora - (IA)Panora, IA8 MWhDec 1987Dec 2025 Distillate Fuel Oil
WiltonCity of Wilton - (IA)Wilton, IA8 MWhDec 1991Dec 2025 Distillate Fuel Oil
Anderson EricksonAnderson Erickson DairyDes Moines, IA9 MWhMar 2000Dec 2025 Distillate Fuel Oil
Preston (IA)City of Preston - (IA)Preston, IA9 MWhNov 1968Dec 2025 Natural Gas : 85.1% Distillate Fuel Oil : 14.9%
Clinton SchoolsInterstate Power and Light CoClinton, IA9 MWhNov 2025Dec 2025 Solar
CashtonVillage of Cashton - (WI)Cashton, WI10 MWhJul 1932Dec 2025 Distillate Fuel Oil : 98.3% Natural Gas : 1.7%
WestbrookCity of Westbrook - (MN)Westbrook, MN10 MWhSep 2003Dec 2025 Distillate Fuel Oil
Liberty I & II LFGTEWabash Valley Power Assn, IncMonticello, IN10 MWhJul 2005Dec 2025 Landfill Gas
BellevueCity of Bellevue - (IA)Bellevue, IA10 MWhJun 1947Dec 2025 Distillate Fuel Oil
Lakefield UtilitiesCity of Lakefield - (MN)Lakefield, MN11 MWhJan 1985Dec 2025 Distillate Fuel Oil
North Generation PlantCity of Greenfield - (IA)Greenfield, IA11 MWhDec 2001Dec 2025 Distillate Fuel Oil
McGregorCity of McGregor- (IA)McGregor, IA11 MWhNov 1941Dec 2025 Distillate Fuel Oil
UblyThumb Electric Coop of MichUbly, MI12 MWhMay 1938Dec 2024 Distillate Fuel Oil : 63.3% Natural Gas : 36.7%
Traer SouthCity of Traer - (IA)Traer, IA12 MWhMar 2001Dec 2025 Distillate Fuel Oil
La FargeLa Farge Municipal Electric Co - (WI)La Farge, WI12 MWhSep 1990Dec 2025 Distillate Fuel Oil
South StrawberryCity of Strawberry Point -(IA)Strawberry Point, IA13 MWhDec 2001Dec 2024 Distillate Fuel Oil
BrooklynCity of Brooklyn - (IA)Brooklyn, IA14 MWhAug 2012Dec 2025 Distillate Fuel Oil
Alliant SBD 9403 Aegon DCIndustrial Energy Applications IncCedar Rapids, IA15 MWhDec 1994Dec 2025 Distillate Fuel Oil
Springfield (MN)Springfield Public Utils Comm - (MN)Springfield, MN15 MWhMay 1994Dec 2025 Distillate Fuel Oil
ViolaVillage of Viola - (WI)Viola, WI15 MWhDec 2001Dec 2025 Distillate Fuel Oil
Downtown Generation PlantCity of Greenfield - (IA)Greenfield, IA15 MWhJun 2020Dec 2025 Distillate Fuel Oil
TrumanCity of Truman - (MN)Truman, MN16 MWhAug 1938Dec 2025 Distillate Fuel Oil
Elm Street Substation GeneratorsCity of Farmington - (MO)Farmington, MO16 MWhSep 2002Dec 2025 Distillate Fuel Oil
Lake ParkCity of Lake Park - (IA)Lake Park, IA16 MWhMar 2005Dec 2025 Distillate Fuel Oil
Alliant SBD 9205 A Y McDonaldIndustrial Energy Applications IncDubuque, IA17 MWhFeb 1990Dec 2025 Distillate Fuel Oil
HillsboroCity of Hillsboro - (ND)Hillsboro, ND17 MWhJun 2002Dec 2025 Distillate Fuel Oil
Kenyon MunicipalKenyon Municipal Utilities - (MN)Kenyon, MN19 MWhJul 1997Dec 2025 Distillate Fuel Oil
Hendricks Regional HealthHendricks Regional HealthDanville, IN19 MWhAug 1992May 2026 Distillate Fuel Oil
Valley Queen CheeseValley Queen Cheese Factory, Inc.Milbank, SD20 MWhMar 2002Apr 2026 Distillate Fuel Oil
MarcelineCity of Marceline - (MO)Marceline, MO20 MWhJul 1989Dec 2025 Distillate Fuel Oil
Lake CrystalCity of Lake Crystal - (MN)Lake Crystal, MN21 MWhApr 1952Dec 2025 Distillate Fuel Oil
FairgroundsUnion Electric Co - (MO)Jefferson City, MO21 MWhJul 1974Dec 2025 Distillate Fuel Oil
BancroftBancroft Municipal Utilities - (IA)Bancroft, IA22 MWhDec 1947Dec 2025 Distillate Fuel Oil
Villisca Municipal Power PlantCity of Villisca - (IA)Villisca, IA22 MWhMay 2003Dec 2025 Distillate Fuel Oil
IBM WestRochester Public UtilitiesRochester, MN24 MWhSep 2005Dec 2025 Distillate Fuel Oil
Enterprise MN - Buscho CSGStandard SolarOwatonna, MN26 MWhNov 2025Dec 2025 Solar
Grantsburg DieselNorthwestern Wisconsin Elec CoGrantsburg, WI26 MWhNov 1963Dec 2025 Distillate Fuel Oil
Sycamore (WI)Madison Gas & Electric CoMadison, WI28 MWhNov 1967Dec 2025 Natural Gas
Overall Road StationCity of Farmington - (MO)Farmington, MO29 MWhFeb 2003Dec 2025 Distillate Fuel Oil
DurantCity of Durant - (IA)Durant, IA29 MWhJun 1970Dec 2025 Distillate Fuel Oil
State FarmState Farm InsuranceBloomington, IL30 MWhSep 1996May 2026 Distillate Fuel Oil
Willmar Municipal SW SubstationWillmar Municipal Utilities (MN)Willmar, MN30 MWhMay 2000Dec 2025 Distillate Fuel Oil
Alliant SBD 8602 Marion SubIndustrial Energy Applications IncMarion, IA30 MWhJul 1986Dec 2025 Distillate Fuel Oil
CascadeCascade Municipal Utilities - (IA)Cascade, IA31 MWhMar 1951Dec 2025 Distillate Fuel Oil
WindomCity of Windom (MN)Windom, MN32 MWhMay 1980Dec 2025 Distillate Fuel Oil
Willmar Municipal East SubstationWillmar Municipal Utilities (MN)Willmar, MN32 MWhMay 2000Dec 2025 Distillate Fuel Oil
WintersetCity of Winterset - (IA)Winterset, IA33 MWhJun 1956Dec 2025 Distillate Fuel Oil : 57.8% Natural Gas : 42.2%
City of Peru Water Street Generating StaCity of Peru - (IL)Peru, IL33 MWhSep 1968Dec 2025 Jet Fuel
West Group Data CenterCADC MSP01, LLCEagan, MN34 MWhApr 2005May 2026 Distillate Fuel Oil
Thomson Reuters Campus Bldg A-DThomson CorpEagan, MN34 MWhMar 1999May 2026 Distillate Fuel Oil
HalstadCity of Halstad - (MN)Halstad, MN34 MWhAug 2007Dec 2025 Distillate Fuel Oil
JanesvilleCity of Janesville - (MN)Janesville, MN35 MWhApr 1955Dec 2025 Distillate Fuel Oil : 97.5% Natural Gas : 2.5%
Enterprise MN - Ferche CSGStandard SolarPaynesville, MN35 MWhNov 2025Dec 2025 Solar
MSC CroswellMichigan Sugar CompanyCroswell, MI36 MWhSep 1948Jan 2025 Natural Gas
Sibley No TwoCity of Sibley - (IA)Sibley, IA37 MWhNov 1987Dec 2025 Natural Gas : 90.9% Distillate Fuel Oil : 9.1%
Buckheart Creek Solar I Community SolarBuckheart Creek Solar 1, LLCCanton, IL37 MWhNov 2025Dec 2025 Solar
CoggonCoggon Municipal Light Plant - (IA)Coggon, IA38 MWhSep 1957Dec 2025 Distillate Fuel Oil
Alliant SBD0201 IngredionIndustrial Energy Applications IncCedar Rapids, IA38 MWhMay 2003Dec 2025 Distillate Fuel Oil
Detroit LakesCity of Detroit Lakes - (MN)Detroit Lakes, MN41 MWhJun 1968Dec 2025 Distillate Fuel Oil
Grand JunctionCity of Grand Junction - (IA)Grand Junction, IA41 MWhNov 1994Dec 2025 Distillate Fuel Oil
McLeansboroCity of McLeansboro - (IL)McLeansboro, IL42 MWhNov 1950Dec 2025 Distillate Fuel Oil
Flora Site BCity of Flora - (IL)Flora, IL43 MWhNov 2001Dec 2025 Distillate Fuel Oil
John Deere Dubuque WorksJohn Deere Dubuque WorksDubuque, IA45 MWhMay 1994May 2026 Distillate Fuel Oil
Lamoni Municipal UtilitiesCity of Lamoni - (IA)Lamoni, IA45 MWhFeb 1940Dec 2025 Distillate Fuel Oil
Alliant SBD 9201 NorplexIndustrial Energy Applications IncPostville, IA45 MWhNov 1988May 2026 Distillate Fuel Oil
Flora Site ACity of Flora - (IL)Flora, IL47 MWhNov 2001Dec 2025 Distillate Fuel Oil
ElroyCity of Elroy - (WI)Elroy, WI48 MWhApr 1973Dec 2025 Distillate Fuel Oil
GraettingerCity of Graettinger - (IA)Graettinger, IA49 MWhJul 1957Dec 2025 Distillate Fuel Oil
Hobart Solar, LLCAES Distributed EnergyHobart, IN49 MWhOct 2012Dec 2025 Solar
Beaver IslandGreat Lakes Energy CoopBeaver Island, MI50 MWhAug 2000Dec 2025 Distillate Fuel Oil
AlexandriaCity of Alexandria - (MN)Alexandria, MN51 MWhDec 1947Dec 2025 Distillate Fuel Oil
MNDOT Standby GenerationState of Minnesota Department of AdministrationSt. Paul, MN51 MWhJun 1995May 2026 Distillate Fuel Oil
DelanoDelano Municipal Utilities (MN)Delano, MN53 MWhSep 1946Dec 2025 Distillate Fuel Oil
City of Peru Rail Generating StationCity of Peru - (IL)Peru, IL53 MWhAug 2011Dec 2025 Distillate Fuel Oil

Surrounding Balancing Authorities

Balancing Authorities with Similar Net Generation

RankBalancing AuthorityAnnual Net Generation# Power Plants
#1PJM Interconnection, LLC882.8 TWh2,652
#2Midcontinent Independent System Operator, Inc.669.4 TWh3,038
#3Electric Reliability Council of Texas, Inc.494.1 TWh1,471
#5Southwest Power Pool306.8 TWh856
#6Southern Company Services, Inc. - Trans253.5 TWh422
#7California Independent System Operator169.4 TWh2,135
#9Tennessee Valley Authority163.4 TWh207
#10Florida Power & Light Co.152.2 TWh187
#12New York Independent System Operator134.3 TWh1,299
#13Duke Energy Carolinas112.6 TWh577