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
PPG Powerhouse C	Westlake 2 US LLC	Lake Charles, LA	2 TWh	Jul 1977	Dec 2025	Natural Gas
Westlake Plaquemine	Westlake Chemicals & Vinyls LLC	Plaquemine, LA	1 TWh	Apr 1997	Dec 2025	Natural Gas : 98.5% Other Gas : 1.5%
R M Schahfer	Northern Indiana Pub Serv Co	Wheatfield, IN	1 TWh	Nov 1976	Dec 2025	Bituminous Coal : 94.0% Natural Gas : 6.0%
Delta Energy Park	Lansing Board of Water and Light	Lansing, MI	1 TWh	Feb 2022	Dec 2025	Natural Gas
Palo Alto Wind Farm	MidAmerican Energy Co	Emmetsburg, IA	1 TWh	Dec 2019	Dec 2025	Wind
LaO Energy Systems	Dow Chemical Co	Plaquemine, LA	1 TWh	May 1958	Dec 2024	Natural Gas : 84.1% Other Gas : 15.9%
North English	MidAmerican Energy Co	Montezuma, IA	1 TWh	Nov 2018	Dec 2025	Wind
John P Madgett	Dairyland Power Coop	Alma, WI	1 TWh	Oct 1979	Dec 2025	Subbituminous Coal : 99.7%
LSP-Cottage Grove LP	Cottage Grove Operating Services LLC	Cottage Grove, MN	1 TWh	Sep 1997	Dec 2024	Natural Gas
Beaver Creek Wind	MidAmerican Energy Co	Ogden, IA	1 TWh	Nov 2017	Dec 2025	Wind
Greenwood (MI)	DTE Electric Company	Avoca, MI	1 TWh	Jun 1979	Dec 2025	Natural Gas
Renaissance Power Plant	DTE Electric Company	Carson City, MI	1 TWh	Feb 2002	Dec 2025	Natural Gas
Jordan Creek Wind Farm, LLC	Jordan Creek Wind Farm, LLC	Judyville, IN	1 TWh	Nov 2020	Dec 2025	Wind
Harry L. Oswald	Arkansas Electric Coop Corp	Little Rock, AR	1 TWh	Jun 2002	Dec 2024	Natural Gas
Arbor Hill Wind Farm	MidAmerican Energy Co	Greenfield, IA	1 TWh	Nov 2018	Dec 2025	Wind
Pine Bluff Energy Center	Pine Bluff Energy LLC	Pine Bluff, AR	1 TWh	Jul 2001	Dec 2025	Natural Gas
Faribault Energy Park	Minnesota Municipal Power Agny	Faribault, MN	1 TWh	Apr 2005	Dec 2024	Natural Gas
Deuel Harvest Wind Energy LLC	Southern Power Co	Clear Lake, SD	1 TWh	Jan 2021	Dec 2025	Wind
Upland Prairie	Interstate Power and Light Co	Spencer, IA	1 TWh	Feb 2019	Dec 2025	Wind
Michigan Power LP	Michigan Power Limited Partnership	Ludington, MI	1 TWh	Sep 1995	Dec 2024	Natural Gas
Ida Grove Wind	MidAmerican Energy Co	Ida Grove, IA	1 TWh	Aug 2016	Dec 2024	Wind
Dakota Range Wind	Northern States Power Co - Minnesota	Marvin, SD	1 TWh	Dec 2021	Dec 2025	Wind
Lincoln Land Wind	Lincoln Land Wind, LLC	TBD, IL	1 TWh	Oct 2021	Dec 2025	Wind
Pomeroy Wind Farm	MidAmerican Energy Co	Fonda, IA	1 TWh	Nov 2007	Dec 2025	Wind
Air Products Port Arthur	Air Products LLC	Port Arthur, TX	998 GWh	Oct 2000	Dec 2024	Natural Gas : 92.8% Other Gas : 7.2%
Archer Daniels Midland Cedar Rapids	Archer Daniels Midland Co	Cedar Rapids, IA	990 GWh	Oct 1988	Dec 2025	Subbituminous Coal : 60.4% Natural Gas : 24.6% Bituminous Coal : 15.0%
Nobles 2 Wind Project	Nobles 2 Power Partners, LLC	Wilmont, MN	974 GWh	Nov 2020	Dec 2025	Wind
F B Culley	Southern Indiana Gas & Elec Co	Newburgh, IN	969 GWh	Nov 1966	Dec 2025	Bituminous Coal : 96.4% Natural Gas : 3.6%
Gary Works	United States Steel-Gary	Gary, IN	950 GWh	Mar 1997	Dec 2025	Blast Furnace Gas : 53.1% Natural Gas : 46.9%
Sapphire Sky Wind Energy LLC	Invenergy Services LLC	Farmer City, IL	926 GWh	Nov 2021	Dec 2025	Wind
ArcelorMittal Burns Harbor	Cleveland-Cliffs Burns Harbor LLC	Burns Harbor, IN	922 GWh	Dec 1968	Dec 2024	Blast Furnace Gas : 42.6% Other Gas : 32.9% Natural Gas : 24.4%
Double Back Diamond	Double Back Diamond Solar Power, LLC	Virden, IL	915 GWh	Oct 2024	Dec 2025	Solar
Archer Daniels Midland Decatur	Archer Daniels Midland Co	Decatur, IL	901 GWh	Mar 1987	Dec 2025	Bituminous Coal : 61.1% Subbituminous Coal : 38.6%
Dallman	City of Springfield - (IL)	Springfield, IL	901 GWh	May 1968	Dec 2025	Bituminous Coal : 99.7%
Holland Energy Park	City of Holland	Holland, MI	893 GWh	May 2017	Dec 2024	Natural Gas
Indiana Crossroads Wind Farm LLC	Indiana Crossroads Wind Farms LLC	Chalmers, IN	892 GWh	Nov 2021	Dec 2025	Wind
Allen S King	Northern States Power Co - Minnesota	Oak Park Heights, MN	890 GWh	Feb 1958	Dec 2025	Subbituminous Coal : 99.6%
Keokuk	Union Electric Co - (MO)	Keokuk, IA	888 GWh	Jul 1913	Dec 2024	Water
Sidney A Murray Jr Hydroelectric	First National Bank-Commerce	Vidalia, LA	885 GWh	Apr 1990	Dec 2024	Water
Emmons-Logan Wind, LLC	Emmons-Logan Wind, LLC	Linton, ND	877 GWh	Nov 2019	Dec 2025	Wind
O'Brien Wind	MidAmerican Energy Co	Primghar, IA	876 GWh	Aug 2016	Dec 2024	Wind
Blazing Star Wind Farm 1	Northern States Power Co - Minnesota	Hendricks, MN	873 GWh	Mar 2020	Dec 2025	Wind
Crowned Ridge Wind II Energy Center	Northern States Power Co - Minnesota	Watertown, SD	870 GWh	Nov 2020	Dec 2025	Wind
Blazing Star 2 Wind Farm	Northern States Power Co - Minnesota	Hendricks, MN	865 GWh	Dec 2020	Dec 2025	Wind
Whitewater Generating Station	Wisconsin Electric Power Co	Whitewater, WI	863 GWh	Aug 1997	Sep 2025	Natural Gas
Diamond Trail Wind Farm	MidAmerican Energy Co	Ladora, IA	863 GWh	Nov 2020	Dec 2025	Wind
Mansfield Mill	IPC-Mansfield Mill	Mansfield, LA	859 GWh	Sep 1981	Dec 2025	Natural Gas : 54.1% Black Liquor : 32.5% Wood/Wood Waste Solids : 11.7% Tire-derived Fuels : 1.7%
Pioneer Prairie Wind Farm	Pioneer Prairie Wind Farm I, LLC	McIntire, IA	859 GWh	Sep 2008	Dec 2025	Wind
Isabella Wind Park	DTE Electric Company	Rosebush, MI	854 GWh	May 2021	Dec 2025	Wind
Eclipse Wind Farm	MidAmerican Energy Co	Adair, IA	832 GWh	Aug 2012	Dec 2025	Wind
Glaciers Edge Wind Project	EDF Renewable Asset Holdings, Inc.	Cleghorn, IA	828 GWh	Nov 2019	Dec 2025	Wind
Nobles Wind Project	Northern States Power Co - Minnesota	Reading, MN	823 GWh	Nov 2010	Dec 2025	Wind
Southern Hills Wind Farm	MidAmerican Energy Co	Creston, IA	814 GWh	Feb 2021	Dec 2025	Wind
Crowned Ridge Wind Energy Center	Crowned Ridge Wind, LLC	Watertown, SD	812 GWh	Nov 2019	Dec 2025	Wind
Great Pathfinder Wind	Great Pathfinder Wind	Stratford, IA	810 GWh	Jan 2023	Dec 2025	Wind
Cannon Falls Energy Center	Invenergy Services LLC	Cannon Falls, MN	809 GWh	Mar 2008	Dec 2025	Natural Gas
Lundgren Wind Project	MidAmerican Energy Co	Otho, IA	804 GWh	Jul 2014	Dec 2024	Wind
Plymouth Wind	MidAmerican Energy Co	Remsen, IA	800 GWh	Dec 2021	Dec 2025	Wind
Heartland Divide II	Heartland Divide II	Audubon, IA	798 GWh	Feb 2022	Dec 2025	Wind
Dunns Bridge II Solar	Dunns Bridge II Solar and Storage Generation LLC	San Pierre, IN	796 GWh	-	Dec 2025	Solar
Crocker Wind Farm	Crocker Wind Farm, LLC	Conde, SD	787 GWh	Oct 2019	Dec 2025	Wind
Freeborn Wind Farm	Northern States Power Co - Minnesota	Glenville, MN	785 GWh	Apr 2021	Dec 2025	Wind
Red Pine Wind Project	EDF Renewable Asset Holdings, Inc.	Ivanhoe, MN	774 GWh	Nov 2017	Dec 2025	Wind
Odell Wind Farm	Algonquin Power Co	Mountain Lake, MN	773 GWh	Jun 2016	Dec 2024	Wind
Little Gypsy	Entergy Louisiana LLC	La Place, LA	772 GWh	Feb 1961	Dec 2025	Natural Gas
Pleasant Valley Wind Farm	Northern States Power Co - Minnesota	Dexter, MN	770 GWh	Jul 2015	Dec 2024	Wind
Dean	DTE Electric Company	East China, MI	770 GWh	May 2002	Dec 2024	Natural Gas
Marion	Southern Illinois Power Coop	Marion, IL	767 GWh	May 1963	Dec 2025	Bituminous Coal : 87.8% Natural Gas : 12.1%
Muscatine Plant #1	Board of Water Electric & Communications	Muscatine, IA	748 GWh	Mar 1958	Dec 2025	Subbituminous Coal : 99.7%
Alliant Energy Neenah	Wisconsin Power & Light Co	Neenah, WI	740 GWh	Apr 2000	Dec 2024	Natural Gas
Golden Plains	Interstate Power and Light Co	Buffalo Center, IA	737 GWh	Feb 2020	Dec 2025	Wind
Whispering Willow North	Interstate Power and Light Co	Latimer, IA	734 GWh	Dec 2019	Dec 2025	Wind
Vermillion Energy Facility	Duke Energy Ohio Inc	Cayuga, IN	728 GWh	May 2000	Dec 2024	Natural Gas
Ida Grove II	MidAmerican Energy Co	Ida Grove, IA	727 GWh	Nov 2019	Dec 2025	Wind
FPL Energy Crystal Lake Wind II LLC	FPL Energy Crystal Lake Wind II LLC	Britt, IA	722 GWh	Dec 2008	Dec 2025	Wind
Cross Winds Energy Park	Consumers Energy Co - (MI)	Unionville, MI	721 GWh	Nov 2014	Dec 2024	Wind
Turtle Creek Wind Farm LLC	Turtle Creek Wind Farm LLC	St. Ansgar, IA	720 GWh	Nov 2018	Dec 2025	Wind
Archer Daniels Midland Clinton	Archer Daniels Midland Co	Clinton, IA	716 GWh	Jan 2009	Dec 2025	Subbituminous Coal : 88.3% Other Biomass Solids : 7.7% Bituminous Coal : 4.0%
R D Green	Big Rivers Electric Corp	Robards, KY	713 GWh	Nov 1979	Dec 2025	Natural Gas
Prosperity Wind	Prosperity Wind, LLC	Deland, IL	678 GWh	-	Dec 2025	Wind
Harvest Ridge Wind Farm	Harvest Ridge Wind Farm	Newman, IL	667 GWh	Jun 2020	Dec 2025	Wind
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%
ExxonMobil Baton Rouge Turbine Generator	Exxon Mobil Corp	Baton Rouge, LA	654 GWh	Apr 1990	Dec 2024	Natural Gas
California Ridge Wind Energy LLC	SunEdison LLC	Fithian, IL	653 GWh	Nov 2012	Dec 2025	Wind
Chickasaw Wind Farm	MidAmerican Energy Co	New Hampton, IA	645 GWh	Nov 2023	Dec 2025	Wind
Sheboygan Falls	Wisconsin Power & Light Co	Sheboygan, WI	642 GWh	May 2005	Dec 2024	Natural Gas
Meadow Lake Wind Farm VI LLC	Meadow Lake Wind Farm VI LLC	Remington, IN	642 GWh	Oct 2018	Dec 2025	Wind
Glacier Sands Wind Power, LLC	Glacier Sands Wind Power, LLC	Mason City, IL	632 GWh	Oct 2021	Dec 2025	Wind
Bison 4 Wind Energy Center	ALLETE, Inc.	New Salem, ND	624 GWh	Dec 2014	Dec 2024	Wind
Foxtail Wind, LLC	Foxtail Wind, LLC	Forbes, ND	623 GWh	Dec 2019	Dec 2025	Wind
Border Winds Wind Farm	Northern States Power Co - Minnesota	Rolla, ND	614 GWh	Jul 2015	Dec 2024	Wind
JCO Oxides Olefins Plant	Indorama Ventures	Port Neeches, TX	614 GWh	Aug 1992	Dec 2024	Natural Gas
Rush Island	Union Electric Co - (MO)	Festus, MO	603 GWh	Feb 1976	Sep 2024	Subbituminous Coal : 98.2% Distillate Fuel Oil : 1.8%
Ledyard Windpower, LLC	Duke Energy Renewables Services	Lakota, IA	596 GWh	Nov 2022	Dec 2025	Wind
FPL Energy Ashtabula Wind LLC	FPL Energy Ashtabula Wind LLC	Luverne, ND	594 GWh	Nov 2008	Dec 2024	Wind
Tatanka Ridge	Tatanka Ridge LLC	Toronto, SD	594 GWh	Dec 2020	Dec 2025	Wind
Indiana Crossroads Wind Farm II	Indiana Crossroads Wind Farm II LLC	Wolcott, IN	593 GWh	Nov 2024	Dec 2025	Wind
Prairie Wind Farm	MidAmerican Energy Co	Montezuma, IA	592 GWh	Dec 2017	Dec 2025	Wind
Geismar Cogen	Air Liquide Large Industries U S LP	Geismar, LA	586 GWh	Dec 1999	Dec 2024	Natural Gas
FPL Energy Crystal Lake Wind LLC	FPL Energy Crystal Lake Wind LLC	Britt, IA	585 GWh	Nov 2008	Dec 2025	Wind

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