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	678.0 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% Water \| 1.4% Other Fuel \| 0.6%

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Daily Net Generation for Midcontinent Independent System Operator, Inc. for the past 3 Years

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Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Ada Dam	Eagle Creek Renewable Energy, LLC	Ada, MI	2 GWh	Feb 1984	Dec 2025	Water
Ada Cogeneration LP	Ada Cogeneration LLC	Ada, MI	185 GWh	Sep 1990	Dec 2025	Natural Gas
Adair Wind Farm	MidAmerican Energy Co	Adair, IA	551 GWh	Nov 2008	Dec 2025	Wind
Eclipse Wind Farm	MidAmerican Energy Co	Adair, IA	820 GWh	Aug 2012	Jul 2026	Wind
Morning Light Wind Farm	MidAmerican Energy Co	Adair, IA	407 GWh	Sep 2012	Dec 2025	Wind
Adams Wind Farm	Justin McNeilus	Adams, MN	10 GWh	Aug 2003	May 2025	Wind
Castle Rock	Wisconsin River Power Company	Adams, WI	83 GWh	Jul 1950	Dec 2025	Water
Adams PV Plant	Adams PV Plant (WI)	Adams, WI	15 GWh	Jun 2023	Dec 2025	Solar
Blue Elk I Solar, LLC	Blue Elk I Solar, LLC	Adrian, MI	1 GWh	Oct 2025	Dec 2025	Solar
Blue Elk IV Solar, LLC	Blue Elk IV Solar, LLC	Adrian, MI	37 GWh	Nov 2023	Dec 2025	Solar
Adrian Energy Associates LLC	NextEra Renewable Fuels, LLC	Adrian, MI	2 GWh	Nov 1994	Dec 2025	Landfill Gas
Novel MNDot Solar CSG	REA Investments, LLC	Afton, MN	2 GWh	Oct 2020	Dec 2025	Solar
SV CSG AFTON I	SV CSG Afton I, LLC	Afton, MN	2 GWh	Jun 2024	Dec 2025	Solar
Stearns Solar I	Stearns Solar I LLC	Albany, MN	2 GWh	Aug 2019	Dec 2025	Solar
Novel Reber Solar CSG	REA Investments, LLC	Albany, MN	2 GWh	Oct 2019	Dec 2025	Solar
Albany Solar	Enel Green Power NA, Inc.	Albany, MN	19 GWh	Nov 2016	Dec 2025	Solar
FastSun 3 CSG	Altus Power America Management, LLC	Albany, MN	2 GWh	Nov 2019	Dec 2025	Solar
Stearns Community Solar One LLC CSG	Madison Energy Holdings LLC	Albany, MN	2 GWh	Nov 2019	Dec 2025	Solar
Schwinghamer Project CSG	Schwinghamer Community Solar LLC	Albany, MN	2 GWh	Nov 2019	Dec 2025	Solar
Goose Lake MN DPC-GM	ENGIE Generation North America LLC	Albert Lea, MN	3 GWh	Jan 2019	Dec 2025	Solar
Bancroft (MN)	OneEnergy, Inc.	Albert Lea, MN	589 MWh	Sep 2025	Dec 2025	Solar
REG Juhl Glenville Wind, LLC	REG Juhl Glenville Wind, LLC	Albert Lea, MN	8 GWh	Nov 2020	Dec 2025	Wind
Shipsterns Solar, LLC	Shipsterns Solar, LLC	Albion, MI	41 GWh	Sep 2023	Dec 2025	Solar
River Fork Solar, LLC	River Fork Solar, LLC	Albion, MI	291 GWh	Sep 2024	Jul 2026	Solar
The Andersons Albion Ethanol LLC	The Andersons Albion Ethanol LLC	Albion, MI	62 GWh	Jul 2006	Dec 2025	Natural Gas
Leonardo Wind 1 LLC	Novis Renewables, LLC	Alden, IA	9 GWh	Nov 2016	Dec 2025	Wind
D G Hunter	City of Alexandria - (LA)	Alexandria, LA	91 GWh	Apr 1965	Dec 2025	Natural Gas
Alexandria	City of Alexandria - (MN)	Alexandria, MN	51 MWh	Dec 1947	Dec 2025	Distillate Fuel Oil
Allegan Dam	Consumers Energy Co - (MI)	Allegan, MI	12 GWh	Dec 1934	Dec 2025	Water
Heartwood Solar	Heartwood Solar, LLC	Allen, MI	26 GWh	-	Jun 2026	Solar
Grand Valley Solar Gardens	Consumers Energy Co - (MI)	Allendale, MI	4 GWh	Mar 2016	Jul 2026	Solar
Pine River Solar Park	DTE Electric Company	Alma, MI	128 GWh	May 2025	Jul 2026	Solar
John P Madgett	Dairyland Power Coop	Alma, WI	1 TWh	Oct 1979	Jul 2026	Subbituminous Coal : 99.5% Distillate Fuel Oil : 0.5%
Alpena Cement Plant	Amrize Cement Inc.	Alpena, MI	212 GWh	Dec 1951	Jul 2026	Petroleum Coke : 86.9% Natural Gas : 13.1%
Norway Point Hydropower Project	Eagle Creek Renewable Energy, LLC	Alpena, MI	13 GWh	Aug 1990	Dec 2025	Water
Four Mile Hydropower Project	Eagle Creek Renewable Energy, LLC	Alpena, MI	8 GWh	Aug 1990	Dec 2025	Water
Ninth Street Hydropower Project	Eagle Creek Renewable Energy, LLC	Alpena, MI	6 GWh	Aug 1990	Dec 2025	Water
Alsey	Prairie Power, Inc	Alsey, IL	35 GWh	May 1999	Dec 2025	Natural Gas : 99.8%
Storm Lake II	ALLETE Clean Energy	Alta, IA	115 GWh	Mar 1999	Dec 2025	Wind
Storm Lake 1	ALLETE Clean Energy	Alta, IA	87 GWh	Apr 1999	Dec 2025	Wind
Altamont	City of Altamont - (IL)	Altamont, IL	75 MWh	Dec 2001	Dec 2025	Distillate Fuel Oil
Winona Solar	Winona Solar I LLC	Altura, MN	4 GWh	Jul 2019	Dec 2025	Solar
Winona Garden	Winona Garden LLC	Altura, MN	2 GWh	Oct 2023	Dec 2025	Solar
USS Bluff Country Solar CSG	United States Solar Corporation	Altura, MN	2 GWh	Nov 2020	Dec 2025	Solar
Apple River Solar, LLC	Geronimo Power	Amery, WI	149 GWh	Nov 2025	Jul 2026	Solar
IA - City of Ames - Airport Road	Forefront Power, LLC	Ames, IA	3 GWh	Nov 2020	Dec 2025	Solar
ISU Customer Hosted 1MW Solar Project	Interstate Power and Light Co	Ames, IA	3 GWh	Apr 2024	Dec 2025	Solar
Iowa State University	Iowa State University	Ames, IA	72 GWh	Sep 1960	Jul 2026	Natural Gas : 97.7% Distillate Fuel Oil : 2.3%
Ames Electric Services Power Plant	City of Ames - (IA)	Ames, IA	285 GWh	Apr 1968	Dec 2025	Natural Gas : 91.0% Other Biomass Solids : 9.0%
Michelangelo Wind 4 LLC	Novis Renewables, LLC	Ames, IA	10 GWh	Nov 2016	Dec 2025	Wind
NCAH Central Utility Plant	National Centers for Animal Health	Ames, IA	432 MWh	May 1996	Jul 2026	Natural Gas : 83.9% Distillate Fuel Oil : 16.1%
Roseman	Roseman Energy, LLC	Anita, IA	7 GWh	Jan 2017	Dec 2025	Wind
Green Energy Machine	Green Energy Machine, LLC	Anita, IA	6 GWh	May 2016	Dec 2025	Wind
Anita	City of Anita - (IA)	Anita, IA	77 MWh	Sep 1939	Dec 2025	Distillate Fuel Oil
Warner Lambert	University of Michigan NCampus Research	Ann Arbor, MI	24 GWh	Jul 1989	Jul 2026	Natural Gas
Peoples Generating Station	Sagepoint Energy	Ann Arbor, MI	25 GWh	Aug 1995	Dec 2025	Landfill Gas
University of Michigan	University of Michigan	Ann Arbor, MI	232 GWh	Dec 1974	Jul 2026	Natural Gas
Domino Farms Solar	DTE Electric Company	Ann Arbor, MI	834 MWh	Aug 2015	Jul 2026	Solar
Annandale Solar	Enel Green Power NA, Inc.	Annandale, MN	12 GWh	Nov 2016	Dec 2025	Solar
Schueler Community Solar	Schueler Community Solar LLC	Annandale, MN	2 GWh	Jul 2020	Dec 2025	Solar
Antigo Solar Partners, LLC	Wisconsin Electric Power Co	Antigo, WI	9 GWh	Oct 2025	Dec 2025	Solar
Antigo-Forrest Street Solar Project	Wisconsin Public Service Corp	Antigo, WI	9 GWh	Oct 2024	Dec 2025	Solar
Apple Canyon Lake Solar	ACM Solar, LLC.	Apple River, IL	3 GWh	Nov 2020	Dec 2025	Solar
Kimberly Mill	City of Kaukauna (WI)	Appleton, WI	13 GWh	Dec 1925	Dec 2025	Water
Appleton	Wisconsin Electric Power Co	Appleton, WI	12 GWh	Jul 1916	Dec 2025	Water
Arcadia Electric	City of Arcadia - (WI)	Arcadia, WI	253 MWh	Dec 1929	Dec 2025	Distillate Fuel Oil : 70.5% Natural Gas : 29.5%
Arcadia Solar	Green Street Power Partners	Arcadia, WI	7 GWh	Aug 2019	Dec 2025	Solar
Zimmerman Energy	Landfill Energy Systems	Argos, IN	40 GWh	Oct 2014	Jul 2026	Landfill Gas
Argyle	City of Argyle - (WI)	Argyle, WI	193 MWh	Dec 1928	Dec 2025	Water : 92.7% Distillate Fuel Oil : 7.3%
Degray	USCE -Vickburg District	Arkadelphia, AR	75 GWh	Jan 1972	Jul 2026	Water
South Central Electric Cooperative	Today's Power, Inc.	Arkadelphia, AR	2 GWh	Jul 2019	Dec 2025	Solar
Veolia (Gum Springs)	Today's Power, Inc.	Arkadelphia, AR	10 GWh	Jul 2024	Dec 2025	Solar
Clearwater Paper APP CB	Clearwater Paper Corporation	Arkansas City, AR	123 GWh	Oct 1977	Dec 2025	Black Liquor : 58.1% Natural Gas : 41.5%
Bay Front	Northern States Power Co - Minnesota	Ashland, WI	177 GWh	Dec 1948	Dec 2025	Wood/Wood Waste Solids : 95.1% Tire-derived Fuels : 4.2% Natural Gas : 0.7%
White River (WI)	Northern States Power Co - Minnesota	Ashland, WI	3 GWh	Dec 1906	Dec 2025	Water
Polaris Solar Park	DTE Electric Company	Ashley, MI	148 GWh	Jun 2025	Jul 2026	Solar
Tatanka Wind Power LLC	Acciona Wind Energy USA LLC	Ashley, ND	427 GWh	Dec 2007	Jul 2026	Wind
Otter Creek Ethanol Poet - Ashton	Otter Creek Ethanol LLC - Poet Ashton	Ashton, IA	45 GWh	Feb 2004	Jul 2026	Natural Gas
The GSI Group LLC at Assumption	Luminace Solar Illinois 2, LLC	Assumption, IL	2 GWh	Dec 2020	Dec 2025	Solar
Astoria Station	Otter Tail Power Co	Astoria, SD	493 GWh	Mar 2021	Jul 2026	Natural Gas
Athens MN CONX	SoCore Energy LLC	Athens, MN	10 GWh	Nov 2018	Dec 2025	Solar
Atlantic	Atlantic Municipal Utilities (IA)	Atlantic, IA	115 MWh	Aug 1966	Dec 2025	Natural Gas
Rafterville Solar	Rafterville Solar, LLC	Atwater, MN	2 GWh	Jun 2023	Dec 2025	Solar
MN CSG 2019-82	MN CSG 2019-82 LLC	Atwater, MN	1 GWh	Nov 2024	Dec 2025	Solar
Atwater Solar	Enel Green Power NA, Inc.	Atwater, MN	8 GWh	Nov 2016	Dec 2025	Solar
USS Turkey Solar LLC CSG	Standard Solar	Atwater, MN	2 GWh	Dec 2019	Dec 2025	Solar
Heartland Divide II	Heartland Divide II	Audubon, IA	770 GWh	Feb 2022	Jul 2026	Wind
Woodruff County Solar	Arkansas Electric Coop Corp	Augusta, AR	175 GWh	Sep 2024	Jul 2026	Solar
Bridge Creek	OneEnergy, Inc.	Augusta, WI	258 MWh	Oct 2025	Dec 2025	Solar
Agassiz Beach LLC	CHI Operations Inc	Averill, MN	3 GWh	Jan 2001	Dec 2025	Wind
Greenwood (MI)	DTE Electric Company	Avoca, MI	2 TWh	Jun 1979	Jul 2026	Natural Gas
Greenwood Solar Farm	DTE Electric Company	Avoca, MI	2 GWh	Dec 2015	Jul 2026	Solar
Diamond Willow Wind Facility	Montana-Dakota Utilities Co	Baker, MT	88 GWh	Nov 2007	Dec 2025	Wind
Timmerman (CSG)	Elora LLC	Balaton, MN	2 GWh	Nov 2022	Dec 2025	Solar
SV CSG Wagner B LLC	SunVest Solar LLC	Baldwin, IL	5 GWh	Nov 2024	Dec 2025	Solar
Baldwin Solar BESS	Vistra Corp	Baldwin, IL	148 GWh	Nov 2024	Jul 2026	Solar
Baldwin Energy Complex	Dynegy Midwest Generation Inc	Baldwin, IL	6 TWh	Jun 1970	Jul 2026	Subbituminous Coal : 99.8%
Teche	Cleco Power LLC	Baldwin, LA	6 GWh	Jun 1953	Sep 2025	Natural Gas
Georgetown (Polk Burnett)	Greenbacker Renewable Energy Corporation	Balsam Lake, WI	4 GWh	Oct 2023	Dec 2025	Solar
Bancroft	Bancroft Municipal Utilities - (IA)	Bancroft, IA	22 MWh	Dec 1947	Dec 2025	Distillate Fuel Oil

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	433.1 GWh	4
#26	Associated Electric Cooperative, Inc.	22.8 TWh	47
#13	Duke Energy Carolinas	113.6 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	891.7 TWh	2,806
#6	Southern Company Services, Inc. - Trans	258.9 TWh	423
#5	Southwest Power Pool	314.8 TWh	876
#53	Southwestern Power Administration	3.6 TWh	37
#9	Tennessee Valley Authority	166.3 TWh	209

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	891.7 TWh	2,806
#2	Midcontinent Independent System Operator, Inc.	678.0 TWh	3,095
#3	Electric Reliability Council of Texas, Inc.	506.6 TWh	1,487
#5	Southwest Power Pool	314.8 TWh	876
#6	Southern Company Services, Inc. - Trans	258.9 TWh	423
#7	California Independent System Operator	167.6 TWh	2,170
#9	Tennessee Valley Authority	166.3 TWh	209
#10	Florida Power & Light Co.	152.8 TWh	188
#12	New York Independent System Operator	134.2 TWh	1,334
#13	Duke Energy Carolinas	113.6 TWh	578