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

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Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Alliant SBD 9301 Prairie Farms	Industrial Energy Applications Inc	Dubuque, IA	86 MWh	Jun 1993	Dec 2024	Distillate Fuel Oil
John Deere Dubuque Works	John Deere Dubuque Works	Dubuque, IA	46 MWh	May 1994	Dec 2025	Distillate Fuel Oil
Alliant SBD 9205 A Y McDonald	Industrial Energy Applications Inc	Dubuque, IA	9 MWh	Feb 1990	Dec 2024	Distillate Fuel Oil
West Dubuque Solar	Interstate Power and Light Co	Dubuque, IA	6 GWh	Aug 2017	Dec 2024	Solar
Jean Duluth Solar	ALLETE, Inc.	Duluth, MN	2 GWh	Nov 2022	Dec 2024	Solar
M L Hibbard	ALLETE, Inc.	Duluth, MN	98 GWh	May 1949	Dec 2025	Wood/Wood Waste Solids : 91.0% Subbituminous Coal : 6.9% Natural Gas : 2.1%
Fond Du Lac	ALLETE, Inc.	Duluth, MN	54 GWh	Dec 1923	Dec 2024	Water
Dam 2	Arkansas Electric Coop Corp	Dumas, AR	401 GWh	May 1999	Dec 2024	Water
Hydra Community Solar Garden, LLC (CSG)	National Grid Renewables	Dundas, MN	2 GWh	Apr 2020	Dec 2024	Solar
Delta Wind Farm (MS)	AES Clean Energy	Dundee, MS	500 GWh	Mar 2024	Dec 2025	Wind
Durant	City of Durant - (IA)	Durant, IA	10 MWh	Jun 1970	Dec 2024	Distillate Fuel Oil
West Group Data Center	Ryan Companies US, Inc.	Eagan, MN	40 MWh	Apr 2005	Dec 2025	Distillate Fuel Oil
Thomson Reuters Campus Bldg A-D	Thomson Corp	Eagan, MN	41 MWh	Mar 1999	Dec 2025	Distillate Fuel Oil
West Group Data Center F	Ryan Companies US, Inc.	Eagan, MN	50 MWh	May 2004	Nov 2024	Distillate Fuel Oil
Thomson Reuters Data Center Bldg ES101	Ryan Companies US, Inc.	Eagan, MN	9 MWh	Apr 2009	Aug 2024	Distillate Fuel Oil
Thomson Reuters Data Center Bldg H	Ryan Companies US, Inc.	Eagan, MN	41 MWh	Dec 2006	Nov 2024	Distillate Fuel Oil
Koppelman Sun CSG	National Grid Renewables	Eagle Lake, MN	8 GWh	Oct 2017	Dec 2024	Solar
FastSun 14 CSG	Altus Power America Management, LLC	Eagle Lake, MN	2 GWh	Nov 2019	Dec 2024	Solar
Benton County Wind Farm	Orion Energy Group LLC	Earl Park, IN	358 GWh	Apr 2008	Dec 2024	Wind
Earlville	City of Earlville - (IA)	Earlville, IA	7 MWh	Jun 2001	Dec 2024	Distillate Fuel Oil
Indiana Harbor E 5 AC Station	Northlake Energy	East Chicago, IN	655 GWh	Apr 1996	Dec 2024	Blast Furnace Gas : 92.6% Natural Gas : 7.4%
Expander Turbine	Cleveland Cliffs	East Chicago, IN	85 GWh	Apr 1981	Dec 2025	Blast Furnace Gas
Indiana Harbor West	Cleveland Cliffs	East Chicago, IN	245 GWh	Sep 1939	Dec 2024	Natural Gas
Heat Recovery Coke Facility	Cokenergy Inc	East Chicago, IN	419 GWh	Mar 1998	Dec 2025	Waste Heat
East Chicago	Altus Power America Management, LLC	East Chicago, IN	3 GWh	Feb 2013	Dec 2024	Solar
St Clair	DTE Electric Company	East China Twp, MI	4 GWh	Jul 1953	Dec 2025	Natural Gas
Dean	DTE Electric Company	East China, MI	770 GWh	May 2002	Dec 2024	Natural Gas
Blue Water Energy Center	DTE Electric Company	East China, MI	8 TWh	May 2022	Dec 2025	Natural Gas
American Crystal Sugar East Grand Forks	American Crystal Sugar Co	East Grand Forks, MN	43 GWh	Aug 1990	Dec 2024	Subbituminous Coal
T B Simon Power Plant	Michigan State University	East Lansing, MI	251 GWh	Nov 1965	Dec 2025	Natural Gas
Spartan PV 1, LLC	NJR Clean Energy Ventures Corporation	East Lansing, MI	12 GWh	Nov 2017	Dec 2024	Solar
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
Blue Elk III Solar, LLC	Blue Elk III Solar, LLC	Eaton Rapids, MI	36 GWh	Nov 2023	Dec 2024	Solar
Dells	Northern States Power Co - Minnesota	Eau Claire, WI	42 GWh	Dec 1922	Dec 2024	Water
Wheaton	Northern States Power Co - Minnesota	Eau Claire, WI	19 GWh	Dec 1972	Dec 2024	Natural Gas : 96.6% Distillate Fuel Oil : 3.4%
Du Bay	Consolidated Water Power Co	Eau Pleine, WI	43 GWh	Dec 1941	Dec 2024	Water
Cargill Corn Milling Division	Cargill Inc North America Sweetners	Eddyville, IA	110 GWh	Nov 1952	Dec 2024	Natural Gas
IL West Hallock Project1	IL West Hallock Project1, LLC	Edelstein, IL	5 GWh	Jul 2021	Dec 2024	Solar
SolarClub 30 (CSG)	Nautilus Solar Solutions	Eden Valley, MN	2 GWh	Dec 2023	Dec 2024	Solar
Cedar Ridge	Wisconsin Power & Light Co	Eden, WI	175 GWh	Nov 2008	Dec 2024	Wind
FPL Energy North Dakota Wind I/II	FPL Energy North Dakota Wind LLC	Edgeley, ND	137 GWh	Sep 2003	Dec 2024	Wind
Johnson Solar CSG	National Grid Renewables	Edgerton, MN	9 GWh	Dec 2017	Dec 2024	Solar
Hilltop Power	Hilltop Power, LLC	Edgerton, MN	4 GWh	Nov 2008	Dec 2024	Wind
Antlia Community Solar	Antlia Community Solar	Edgerton, MN	3 GWh	Aug 2017	Dec 2024	Solar
North Rock	Wisconsin Power & Light Co	Edgerton, WI	101 GWh	Sep 2022	Dec 2025	Solar
Camp Atterbury Microgrid Hybrid	Duke Energy Indiana, LLC	Edinburgh, IN	3 GWh	Oct 2019	Dec 2024	Solar
Edwardsport	Duke Energy Indiana, LLC	Edwardsport, IN	4 TWh	May 2013	Dec 2025	Natural Gas : 47.8% Coal-Derived Synthesis Gas : 43.4% Bituminous Coal : 8.8%
Edwardsville Solar II	Edwardsville Solar II, LLC	Edwardsville, IL	4 GWh	Jun 2021	Dec 2024	Solar
El Dorado AR	Entegrity Solar El Dorado SD, LLC	El Dorado, AR	2 GWh	Jan 2024	Dec 2024	Solar
Union Power Station	Entergy Arkansas LLC	El Dorado, AR	10 TWh	Dec 2002	Dec 2025	Natural Gas
Osage Dam	Union Electric Co - (MO)	Eldon, MO	497 GWh	Sep 1931	Dec 2024	Water
Eldorado Solar I	Sol Systems	Eldorado, IL	308 GWh	-	Dec 2025	Solar
Elk Mound	Dairyland Power Coop	Elk Mound, WI	25 GWh	May 2001	Dec 2024	Natural Gas : 99.5% Distillate Fuel Oil : 0.5%
Elk River	Great River Energy	Elk River, MN	124 GWh	Dec 1950	Dec 2025	Natural Gas : 99.9%
Elk River City of	City of Elk River	Elk River, MN	32 MWh	Feb 1948	Dec 2023	Distillate Fuel Oil
LaFayette Solar WI, LLC	Wisconsin Electric Power Co	Elkhorn, WI	15 MWh	Nov 2024	Dec 2024	Solar
Harvest 2	Harvest II Windfarm, LLC	Elkton, MI	202 GWh	Oct 2012	Dec 2024	Wind
Harvest	Harvest Windfarm, LLC	Elkton, MI	116 GWh	Dec 2007	Dec 2024	Wind
Echo Wind Park	DTE Electric Company	Elkton, MI	575 GWh	Dec 2013	Dec 2025	Wind
Buffalo Ridge II LLC	Avangrid Power LLC	Elkton, SD	479 GWh	Nov 2010	Dec 2025	Wind
Buffalo Ridge I LLC	Avangrid Power LLC	Elkton, SD	106 GWh	Mar 2009	Dec 2025	Wind
Ellettsville Solar RES	Hoosier Energy R E C, Inc	Ellettsville, IN	1 GWh	Sep 2016	Dec 2024	Solar
Alpine Power Plant	Wolverine Power Supply Coop	Elmira, MI	499 GWh	May 2016	Dec 2024	Natural Gas
Elroy	City of Elroy - (WI)	Elroy, WI	2 MWh	Apr 1973	Dec 2024	Distillate Fuel Oil
Palo Alto Wind Farm	MidAmerican Energy Co	Emmetsburg, IA	1 TWh	Dec 2019	Dec 2025	Wind
Poet Bioprocessing Emmetsburg	Poet Bioprocessing Emmetsburg	Emmetsburg, IA	18 GWh	Nov 2023	Dec 2024	Natural Gas : 83.1% Other Biomass Solids : 16.9%
Temperance Solar, LLC	National Grid Renewables	Erie, MI	40 GWh	Nov 2020	Dec 2024	Solar
Escanaba Mill	Billerud Escanaba LLC	Escanaba, MI	466 GWh	Dec 1968	Dec 2025	Black Liquor : 45.4% Natural Gas : 30.9% Wood/Wood Waste Solids : 22.9% Residual Fuel Oil : 0.7%
Dan E Karn	Consumers Energy Co - (MI)	Essexville, MI	83 GWh	Oct 1959	Dec 2025	Natural Gas : 93.6% Residual Fuel Oil : 6.4%
Iowa Lakes Community College Wind Farm	Iowa Lakes Community College	Estherville, IA	2 GWh	Jan 2005	Oct 2025	Wind
Acadia Energy Center	Cleco Power LLC	Eunice, LA	6 TWh	Jun 2002	Dec 2025	Natural Gas
WestRock (TX)	WestRock (TX)	Evadale, TX	415 GWh	May 1954	Dec 2024	Black Liquor : 58.9% Wood/Wood Waste Solids : 22.0% Natural Gas : 19.1%
Oak Hill Solar Array	Southern Indiana Gas & Elec Co	Evansville, IN	3 GWh	Oct 2018	Dec 2024	Solar
Volkman Road Solar Array Hybrid	Southern Indiana Gas & Elec Co	Evansville, IN	4 GWh	Oct 2018	Dec 2024	Solar
Bos Dairy, LLC	Bos Dairy, LLC	Fair Oaks, IN	6 GWh	Dec 2004	Dec 2024	Natural Gas
Herrema Dairy	Herrema Dairy, LLC	Fair Oaks, IN	7 GWh	Mar 2022	Dec 2024	Natural Gas
Fairbanks Solar Project	Fairbanks Solar Energy Center LLC	Fairbanks, IN	358 GWh	-	Dec 2025	Solar
Fairfax	City of Fairfax - (MN)	Fairfax, MN	2 MWh	Jul 2001	Dec 2024	Distillate Fuel Oil
Fairmont Wind	Southern Minnesota Mun P Agny	Fairmont, MN	15 GWh	Feb 2003	Dec 2024	Wind
Fairmont (MN)	Southern Minnesota Mun P Agny	Fairmont, MN	6 GWh	Dec 1974	Dec 2024	Natural Gas : 97.6% Distillate Fuel Oil : 2.4%
Faribault Energy Park	Minnesota Municipal Power Agny	Faribault, MN	1 TWh	Apr 2005	Dec 2024	Natural Gas
West Faribault Solar	Enel Green Power NA, Inc.	Faribault, MN	10 GWh	Nov 2016	Dec 2024	Solar
Cannon Garden Solar	Cannon Garden LLC	Faribault, MN	2 GWh	Dec 2019	Dec 2024	Solar
Walcott Solar CSG	Altus Power America Management, LLC	Faribault, MN	9 GWh	Jun 2020	Dec 2024	Solar
Marion Garden	Excelsior Energy Capital	Faribault, MN	2 GWh	Oct 2020	Dec 2024	Solar
Falls Creek Garden	Falls Creek Garden LLC	Faribault, MN	2 GWh	Jan 2020	Dec 2024	Solar
USS Fair Park Solar LLC (CSG)	United States Solar Corporation	Faribault, MN	2 GWh	Nov 2023	Dec 2024	Solar
Roberds Garden CSG	Roberds Garden LLC	Faribault, MN	2 GWh	Aug 2019	Dec 2024	Solar
Straight Garden Solar	Straight Garden LLC	Faribault, MN	2 GWh	Feb 2020	Dec 2024	Solar
Sapphire Sky Wind Energy LLC	Invenergy Services LLC	Farmer City, IL	926 GWh	Nov 2021	Dec 2025	Wind
Farmer City	City of Farmer City - (IL)	Farmer City, IL	50 MWh	Mar 1951	Dec 2024	Distillate Fuel Oil
Illinois PV Fulton 1 CSG	Illinois PV Fulton 1, LLC	Farmington, IL	4 GWh	May 2020	Dec 2024	Solar
Vermillion River_MN_GRE DEA-GM	SoCore Energy LLC	Farmington, MN	5 GWh	Nov 2019	Dec 2024	Solar
Empire Solar	Cypress Creek Renewables	Farmington, MN	6 GWh	Nov 2016	Dec 2024	Solar
MSC-Empire01, LLC	MSC-Empire01, LLC	Farmington, MN	2 GWh	Jul 2019	Dec 2024	Solar
Ursa Community Solar	Ursa Community Solar	Farmington, MN	8 GWh	Dec 2016	Dec 2024	Solar
Farmington Holdco Solar	Farmington Holdco LLC	Farmington, MN	8 GWh	Jan 2017	Dec 2024	Solar
SunE Feely 1 CSG, LLC	Ecoplexus, Inc	Farmington, MN	8 GWh	Aug 2018	Dec 2024	Solar
FastSun 19 CSG	Altus Power America Management, LLC	Farmington, MN	2 GWh	May 2020	Dec 2024	Solar

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