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 1,201 to 1,300 of 2,269
Plant NameUtilityLocationAnnual GenerationPlant DateLast UpdateFuel Types
SV CSG Barrass Farms II LLSV CSG Barrass Farms II LLCMarion, IL5 GWhAug 2023Dec 2025 Solar
Alliant SBD 8602 Marion SubIndustrial Energy Applications IncMarion, IA30 MWhJul 1986Dec 2025 Distillate Fuel Oil
Prairie State Generating StationPrairie State Generating Co LLCMarissa, IL12 TWhMay 2012May 2026 Bituminous Coal : 99.8%
McClure DamUpper Peninsula Power CompanyMarquette, MI26 GWhJan 1988Dec 2025 Water
James R SmithCity of Marquette - (MI)Marquette, MI14 GWhDec 1918Dec 2025 Water
Marquette Energy CenterCity of Marquette - (MI)Marquette, MI164 GWhJul 2017Dec 2025 Natural Gas : 98.9% Distillate Fuel Oil : 1.1%
Marshall (IL)City of Marshall - (IL)Marshall, IL167 MWhMar 2002Dec 2025 Distillate Fuel Oil
GRS C&CGas Recovery Systems IncMarshall, MI21 GWhJan 1995Dec 2025 Landfill Gas
Marshall (MI)City of Marshall - (MI)Marshall, MI638 MWhMay 1928Dec 2025 Water
Marshall (MN)City of Marshall - (MN)Marshall, MN93 MWhJun 1969Dec 2025 Distillate Fuel Oil
Marshall Wind 2 LLCMarshall Wind Farm, LLCMarshall, MN5 GWhNov 2007Nov 2025 Wind
Marshall Wind 5 LLCMarshall Wind Farm, LLCMarshall, MN2 GWhNov 2007Dec 2025 Wind
Marshall Wind 4 LLCMarshall Wind Farm, LLCMarshall, MN4 GWhNov 2007Dec 2025 Wind
Marshall Wind 3 LLCMarshall Wind Farm, LLCMarshall, MN4 GWhNov 2007Dec 2025 Wind
Marshall Solar Energy ProjectMarshall Solar Energy ProjectMarshall, MN92 GWhDec 2016May 2026 Solar
Marshall Wind 1 LLCMarshall Wind Farm, LLCMarshall, MN1 GWhNov 2007Dec 2025 Wind
Marshall Wind 6 LLCMarshall Wind Farm, LLCMarshall, MN3 GWhNov 2007Dec 2025 Wind
Marshall Solar Plus LLCWestern Minnesota Mun Pwr AgnyMarshall, MN17 GWhNov 2024Dec 2025 Solar
MarshalltownInterstate Power and Light CoMarshalltown, IA20 GWhMay 1978Dec 2025 Natural Gas
Alliant SBD 9107 JBS USAIndustrial Energy Applications IncMarshalltown, IA62 MWhJul 1992May 2026 Distillate Fuel Oil
Vienna Wind FarmMidAmerican Energy CoMarshalltown, IA622 GWhOct 2012Dec 2025 Wind
Marshalltown Generating StationInterstate Power and Light CoMarshalltown, IA3 TWhMar 2017May 2026 Natural Gas : 99.9%
Marshfield Utilities Gas PlantCity of Marshfield - (WI)Marshfield, WI19 GWhMay 2011Dec 2025 Natural Gas
New Madrid Solar, LLCNew Madrid Solar, LLCMarston, MO230 GWhOct 2025May 2026 Solar
Eagle Valley (IN)AES IndianaMartinsville, IN5 TWhNov 1951May 2026 Natural Gas
Dakota Range WindNorthern States Power Co - MinnesotaMarvin, SD984 GWhDec 2021May 2026 Wind
Salt Creek Township Solar, LLCBirch Creek Power, LLCMason City, IL110 GWhDec 2024May 2026 Solar
Glacier Sands Wind Power, LLCGlacier Sands Wind Power, LLCMason City, IL629 GWhOct 2021May 2026 Wind
Moraine Sands Wind PowerMoraine Sands Wind Power, LLCMason City, IL562 GWhNov 2023May 2026 Wind
CED Mason City WindRWE Clean EnergyMason City, IA29 GWhApr 2020Dec 2025 Wind
Lime CreekInterstate Power and Light CoMason City, IA1 GWhApr 1991Dec 2025 Distillate Fuel Oil
Blue Elk II Solar, LLCBlue Elk II Solar, LLCMason, MI35 GWhApr 2024Dec 2025 Solar
Rolling Hills Wind FarmMidAmerican Energy CoMassena, IA2 TWhNov 2011May 2026 Wind
Cooks Mill PV ICooks Mill PV I, LLCMatoon, IL45 GWh-May 2026 Solar
Lemonweir (Oak 1)Greenbacker Renewable Energy CorporationMauston, WI6 GWhNov 2023Dec 2025 Solar
Elroy SolarGreen Street Power PartnersMauston, WI1 GWhAug 2019Dec 2025 Solar
USS Dressen Family Solar LLCUnited States Solar CorporationMayer, MN2 GWhJun 2023Dec 2025 Solar
Wolverine SolarWolverine Solar, LLCMaynard, MN2 GWhOct 2023Dec 2025 Solar
Centaurus Community SolarCentaurus Community SolarMaynard, MN3 GWhAug 2017Dec 2025 Solar
Putnam (MI)DTE Electric CompanyMayville, MI129 MWhMay 1971Dec 2025 Distillate Fuel Oil
Butler RidgeButler Ridge Wind Energy CenterMayville, WI138 GWhJan 2009May 2026 Wind
Rochester HydroRochester Public UtilitiesMazeppa, MN22 GWhAug 1984Dec 2025 Water
Novel Sunnyfield Farms Solar LLC CSGREA Investments, LLCMazeppa, MN2 GWhMay 2022Dec 2025 Solar
Siems Solar Project CSGSiems Community Solar LLCMazeppa, MN2 GWhJul 2020Dec 2025 Solar
Stoney Corners Wind FarmDTE Sustainable GenerationMcBain, MI125 GWhNov 2009Dec 2025 Wind
National Energy of McBainNational Salvage & Service CorporationMcBain, MI122 GWhNov 1988Dec 2024 Wood/Wood Waste Solids : 88.5% Tire-derived Fuels : 11.2%
McGregorCity of McGregor- (IA)McGregor, IA11 MWhNov 1941Dec 2025 Distillate Fuel Oil
Pioneer Prairie Wind FarmPioneer Prairie Wind Farm I, LLCMcIntire, IA845 GWhSep 2008May 2026 Wind
McLeansboroCity of McLeansboro - (IL)McLeansboro, IL42 MWhNov 1950Dec 2025 Distillate Fuel Oil
Medford DPC SolarSoCore Energy LLCMedford, WI3 GWhJan 2017May 2026 Solar
Melrose 2Melrose Public UtilitiesMelrose, MN4 MWhFeb 2014Dec 2025 Distillate Fuel Oil
USS Midtown Solar LLC CSGStandard SolarMelrose, MN2 GWhNov 2019Dec 2025 Solar
New Munich SolarNew Munich Solar LLCMelrose, MN2 GWhAug 2019Dec 2025 Solar
MelroseMelrose Public UtilitiesMelrose, MN71 MWhJun 1945Dec 2025 Distillate Fuel Oil
Heartland Divide Wind Project, LLCHeartland Divide Wind Project, LLCMelville, IA427 GWhNov 2018May 2026 Wind
Menominee Mill MarinetteEagle Creek Renewable Energy, LLCMenominee, MI10 GWhDec 1923May 2026 Water
Harley-Davison Powertrain OperationsWisconsin Electric Power CoMenomonee Falls, WI3 GWhSep 2020Dec 2025 Solar
Downsville DPC SolarSoCore Energy LLCMenomonee, WI2 GWhJan 2017May 2026 Solar
Cedar Falls (WI)Northern States Power Co - MinnesotaMenomonie, WI31 GWhDec 1909Dec 2025 Water
MenomonieNorthern States Power Co - MinnesotaMenomonie, WI23 GWhDec 1957Dec 2025 Water
Bayou Galion Solar ProjectBayou Galion Solar Project, LLCMer Rouge, LA219 GWhOct 2024May 2026 Solar
Morgan Solar 1b CSGMorgan Solar 1b LLCMeredosia, IL3 GWhJul 2021Dec 2025 Solar
Morgan Solar 1 CSGMorgan Solar 1 LLCMeredosia, IL4 GWhJul 2021Dec 2025 Solar
Meridian Wind ParkDTE Electric CompanyMerrill, MI479 GWhMar 2023May 2026 Wind
AlexanderWisconsin Public Service CorpMerrill, WI14 GWhDec 1924Dec 2025 Water
MerrillWisconsin Public Service CorpMerrill, WI4 GWhFeb 1917Dec 2025 Water
StrobusAltus Power America Management, LLCMerrillan, WI3 GWhAug 2021Dec 2025 Solar
Lincoln SolarEcos Energy LLCMerrillville, IN2 GWhNov 2012Dec 2025 Solar
HodenpylConsumers Energy Co - (MI)Mesick, MI22 GWhJun 1925Dec 2025 Water
MexicoUnion Electric Co - (MO)Mexico, MO2 GWhAug 1978Dec 2025 Distillate Fuel Oil
Envoy Solar, LLCBirch Creek Power, LLCMexico, MO109 GWhJan 2025May 2026 Solar
Michigan CityNorthern Indiana Pub Serv CoMichigan City, IN2 TWhApr 1974May 2026 Subbituminous Coal : 78.0% Bituminous Coal : 20.3% Natural Gas : 1.7%
Deercroft I & II LFGTEWabash Valley Power Assn, IncMichigan City, IN19 GWhJul 1999Dec 2025 Landfill Gas
Amana Society Service CompanyAmana Society Service CoMiddle Amana, IA1 GWhApr 2001Dec 2025 Distillate Fuel Oil
Middlebury SolarEcos Energy LLCMiddlebury, IN2 GWhOct 2012Dec 2025 Solar
Heartland FarmsConsumers Energy Co - (MI)Middleton, MI462 GWhMar 2024May 2026 Wind
Middleton Biogas Solar, LLCMiddleton Biogas Solar, LLCMiddleton, WI2 GWhApr 2022Dec 2025 Solar
Middleton Airport SolarMadison Gas & Electric CoMiddleton, WI7 GWhJun 2020Dec 2025 Solar
IMPA Middletown Solar ParkIndiana Municipal Power AgencyMiddletown, IN2 GWhJul 2023Dec 2025 Solar
Midland Cogeneration VentureMidland Cogeneration VentureMidland, MI10 TWhMay 1989May 2026 Natural Gas
White Tail SolarWhite Tail Solar, LLCMilan, MI99 GWhOct 2025May 2026 Solar
Valley Queen CheeseValley Queen Cheese Factory, Inc.Milbank, SD20 MWhMar 2002Apr 2026 Distillate Fuel Oil
Miles City GTMontana-Dakota Utilities CoMiles City, MT2 GWhApr 1972Dec 2025 Natural Gas : 99.7%
Valley (WI)Wisconsin Electric Power CoMilwaukee, WI376 GWhMay 1968May 2026 Natural Gas
MMSD Jones Island WastewaterMilwaukee Metro Sewerage DistMilwaukee, WI83 GWhDec 1970May 2026 Natural Gas : 84.8% Landfill Gas : 14.2% Distillate Fuel Oil : 1.0%
City of Milwaukee LandfillWisconsin Electric Power CoMilwaukee, WI3 GWhJan 2021Dec 2025 Solar
Minden Wind ParkDTE Electric CompanyMinden City, MI110 GWhNov 2012May 2026 Wind
Michigan Wind 2Michigan Wind 2, LLCMinden City, MI329 GWhNov 2011Dec 2025 Wind
SAF Hydroelectric LLCSAF Hydroelectric LLCMinneapolis, MN30 GWhNov 2011Dec 2025 Water
Univ Minnesota CHP PlantUniversity of Minnesota Central UtilitiesMinneapolis, MN172 GWhOct 2017Dec 2025 Natural Gas : 99.7%
Hennepin IslandNorthern States Power Co - MinnesotaMinneapolis, MN54 GWhSep 1954Dec 2025 Water
Covanta Hennepin EnergyCovanta Energy CoMinneapolis, MN195 GWhSep 1989May 2026 Non-biogenic Municipal Solid Waste : 54.5% Biogenic Municipal Solid Waste : 44.6% Natural Gas : 0.8%
Novel Denzer Solar LLC CSGREA Investments, LLCMinnesota City, MN2 GWhJun 2022Dec 2025 Solar
CF Novel Solar CSG Gardens Two, LLCSunStrong Management, LLCMinnesota Lake, MN3 GWhNov 2017Dec 2025 Solar
Bennington WindMinonk Stewardship Wind LLCMinonk, IL300 GWhSep 2021May 2026 Wind
MioConsumers Energy Co - (MI)Mio, MI14 GWhDec 1915Dec 2025 Water
Lawrence County StationHoosier Energy R E C, IncMitchell, IN164 GWhApr 2005Dec 2025 Natural Gas
Spring Mill Solar RESHoosier Energy R E C, IncMitchell, IN1 GWhAug 2017Dec 2025 Solar
Metro Methane Recovery FacilityWM Renewable Energy LLCMitchellville, IA85 GWhDec 1997May 2026 Landfill Gas
MoberlyUnion Electric Co - (MO)Moberly, MO257 MWhJul 1978Dec 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