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	Nov 2025
Annual Generation	655.1 TWh
Power Plants	2,831
Utilities	1,296
Ranked #2 out of 65 in terms of net annual generation
Ranked #2 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 35.7% Coal \| 29% Wind \| 14.9% Nuclear \| 13.9% Solar \| 4.5% Water \| 1.5% Other Fuel \| 0.6%

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

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
George Neal South	MidAmerican Energy Co	Salix, IA	1 TWh	Jun 1979	Sep 2025	Subbituminous Coal : 99.1%
Delta Energy Park	Lansing Board of Water and Light	Lansing, MI	1 TWh	Feb 2022	Sep 2025	Natural Gas
LaO Energy Systems	Dow Chemical Co	Plaquemine, LA	1 TWh	May 1958	Dec 2024	Natural Gas : 84.1% Other Gas : 15.9%
Palo Alto Wind Farm	MidAmerican Energy Co	Emmetsburg, IA	1 TWh	Dec 2019	Sep 2025	Wind
F B Culley	Southern Indiana Gas & Elec Co	Newburgh, IN	1 TWh	Nov 1966	Sep 2025	Bituminous Coal : 96.1% Natural Gas : 3.9%
Michigan City	Northern Indiana Pub Serv Co	Michigan City, IN	1 TWh	Apr 1974	Sep 2025	Subbituminous Coal : 78.0% Bituminous Coal : 20.3% Natural Gas : 1.7%
Beaver Creek Wind	MidAmerican Energy Co	Ogden, IA	1 TWh	Nov 2017	Sep 2025	Wind
North English	MidAmerican Energy Co	Montezuma, IA	1 TWh	Nov 2018	Sep 2025	Wind
LSP-Cottage Grove LP	Cottage Grove Operating Services LLC	Cottage Grove, MN	1 TWh	Sep 1997	Dec 2024	Natural Gas
Jordan Creek Wind Farm, LLC	Jordan Creek Wind Farm, LLC	Judyville, IN	1 TWh	Nov 2020	Sep 2025	Wind
Holland Energy Facility	NAES Corporation - (WA)	Beecher City, IL	1 TWh	Aug 2002	Sep 2025	Natural Gas
John P Madgett	Dairyland Power Coop	Alma, WI	1 TWh	Oct 1979	Sep 2025	Subbituminous Coal : 99.8%
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	Sep 2025	Wind
Faribault Energy Park	Minnesota Municipal Power Agny	Faribault, MN	1 TWh	Apr 2005	Dec 2024	Natural Gas
Renaissance Power Plant	DTE Electric Company	Carson City, MI	1 TWh	Feb 2002	Sep 2025	Natural Gas
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
Upland Prairie	Interstate Power and Light Co	Spencer, IA	1 TWh	Feb 2019	Sep 2025	Wind
Deuel Harvest Wind Energy LLC	Southern Power Co	Clear Lake, SD	1 TWh	Jan 2021	Sep 2025	Wind
Lincoln Land Wind	Lincoln Land Wind, LLC	TBD, IL	1 TWh	Oct 2021	Sep 2025	Wind
Riverside (MN)	Northern States Power Co - Minnesota	Minneapolis, MN	1 TWh	Mar 1987	Sep 2025	Natural Gas
Air Products Port Arthur	Air Products LLC	Port Arthur, TX	998 GWh	Oct 2000	Dec 2024	Natural Gas : 92.8% Other Gas : 7.2%
Double Back Diamond	Double Back Diamond Solar Power, LLC	Virden, IL	995 GWh	Oct 2024	Sep 2025	Solar
Archer Daniels Midland Cedar Rapids	Archer Daniels Midland Co	Cedar Rapids, IA	990 GWh	Oct 1988	Sep 2025	Subbituminous Coal : 59.5% Natural Gas : 25.4% Bituminous Coal : 15.1%
Greenwood (MI)	DTE Electric Company	Avoca, MI	984 GWh	Jun 1979	Sep 2025	Natural Gas
Pomeroy Wind Farm	MidAmerican Energy Co	Fonda, IA	972 GWh	Nov 2007	Sep 2025	Wind
Nobles 2 Wind Project	Nobles 2 Power Partners, LLC	Wilmont, MN	946 GWh	Nov 2020	Sep 2025	Wind
Sapphire Sky Wind Energy LLC	Invenergy Services LLC	Farmer City, IL	937 GWh	Nov 2021	Sep 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%
Indiana Crossroads Wind Farm LLC	Indiana Crossroads Wind Farms LLC	Chalmers, IN	902 GWh	Nov 2021	Sep 2025	Wind
Cannon Falls Energy Center	Invenergy Services LLC	Cannon Falls, MN	899 GWh	Mar 2008	Sep 2025	Natural Gas
Dakota Range Wind	Northern States Power Co - Minnesota	Marvin, SD	896 GWh	Dec 2021	Sep 2025	Wind
Holland Energy Park	City of Holland	Holland, MI	893 GWh	May 2017	Dec 2024	Natural Gas
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
Archer Daniels Midland Decatur	Archer Daniels Midland Co	Decatur, IL	881 GWh	Mar 1987	Sep 2025	Bituminous Coal : 62.4% Subbituminous Coal : 37.4%
O'Brien Wind	MidAmerican Energy Co	Primghar, IA	876 GWh	Aug 2016	Dec 2024	Wind
Emmons-Logan Wind, LLC	Emmons-Logan Wind, LLC	Linton, ND	874 GWh	Nov 2019	Sep 2025	Wind
Pioneer Prairie Wind Farm	Pioneer Prairie Wind Farm I, LLC	McIntire, IA	865 GWh	Sep 2008	Sep 2025	Wind
Isabella Wind Park	DTE Electric Company	Rosebush, MI	864 GWh	May 2021	Sep 2025	Wind
Whitewater Generating Station	Wisconsin Electric Power Co	Whitewater, WI	863 GWh	Aug 1997	Sep 2025	Natural Gas
Crowned Ridge Wind II Energy Center	Northern States Power Co - Minnesota	Watertown, SD	860 GWh	Nov 2020	Sep 2025	Wind
Blazing Star Wind Farm 1	Northern States Power Co - Minnesota	Hendricks, MN	836 GWh	Mar 2020	Sep 2025	Wind
Diamond Trail Wind Farm	MidAmerican Energy Co	Ladora, IA	836 GWh	Nov 2020	Sep 2025	Wind
Blazing Star 2 Wind Farm	Northern States Power Co - Minnesota	Hendricks, MN	834 GWh	Dec 2020	Sep 2025	Wind
Glaciers Edge Wind Project	EDF Renewable Asset Holdings, Inc.	Cleghorn, IA	832 GWh	Nov 2019	Sep 2025	Wind
Southern Hills Wind Farm	MidAmerican Energy Co	Creston, IA	828 GWh	Feb 2021	Sep 2025	Wind
Pine Bluff Energy Center	Pine Bluff Energy LLC	Pine Bluff, AR	827 GWh	Jul 2001	Sep 2025	Natural Gas
Eclipse Wind Farm	MidAmerican Energy Co	Adair, IA	826 GWh	Aug 2012	Sep 2025	Wind
Crowned Ridge Wind Energy Center	Crowned Ridge Wind, LLC	Watertown, SD	820 GWh	Nov 2019	Sep 2025	Wind
Little Gypsy	Entergy Louisiana LLC	La Place, LA	815 GWh	Feb 1961	Sep 2025	Natural Gas
Mansfield Mill	IPC-Mansfield Mill	Mansfield, LA	811 GWh	Sep 1981	Sep 2025	Natural Gas : 55.4% Black Liquor : 30.8% Wood/Wood Waste Solids : 11.8% Tire-derived Fuels : 2.0%
Dallman	City of Springfield - (IL)	Springfield, IL	809 GWh	May 1968	Sep 2025	Bituminous Coal : 99.6%
Nobles Wind Project	Northern States Power Co - Minnesota	Reading, MN	804 GWh	Nov 2010	Sep 2025	Wind
Lundgren Wind Project	MidAmerican Energy Co	Otho, IA	804 GWh	Jul 2014	Dec 2024	Wind
Heartland Divide II	Heartland Divide II	Audubon, IA	790 GWh	Feb 2022	Sep 2025	Wind
Gary Works	United States Steel-Gary	Gary, IN	784 GWh	Mar 1997	Sep 2025	Blast Furnace Gas : 51.3% Natural Gas : 48.6%
Great Pathfinder Wind	Great Pathfinder Wind	Stratford, IA	783 GWh	Jan 2023	Sep 2025	Wind
Plymouth Wind	MidAmerican Energy Co	Remsen, IA	778 GWh	Dec 2021	Sep 2025	Wind
Odell Wind Farm	Algonquin Power Co	Mountain Lake, MN	773 GWh	Jun 2016	Dec 2024	Wind
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
Crocker Wind Farm	Crocker Wind Farm, LLC	Conde, SD	767 GWh	Oct 2019	Sep 2025	Wind
Marion	Southern Illinois Power Coop	Marion, IL	762 GWh	May 1963	Sep 2025	Bituminous Coal : 85.9% Natural Gas : 14.0%
Alliant Energy Neenah	Wisconsin Power & Light Co	Neenah, WI	740 GWh	Apr 2000	Dec 2024	Natural Gas
Red Pine Wind Project	EDF Renewable Asset Holdings, Inc.	Ivanhoe, MN	739 GWh	Nov 2017	Sep 2025	Wind
Whispering Willow North	Interstate Power and Light Co	Latimer, IA	729 GWh	Dec 2019	Sep 2025	Wind
Vermillion Energy Facility	Duke Energy Ohio Inc	Cayuga, IN	728 GWh	May 2000	Dec 2024	Natural Gas
Archer Daniels Midland Clinton	Archer Daniels Midland Co	Clinton, IA	727 GWh	Jan 2009	Sep 2025	Subbituminous Coal : 90.1% Other Biomass Solids : 8.3% Bituminous Coal : 1.6%
Turtle Creek Wind Farm LLC	Turtle Creek Wind Farm LLC	St. Ansgar, IA	725 GWh	Nov 2018	Sep 2025	Wind
Muscatine Plant #1	Board of Water Electric & Communications	Muscatine, IA	724 GWh	Mar 1958	Sep 2025	Subbituminous Coal : 99.7%
Allen S King	Northern States Power Co - Minnesota	Oak Park Heights, MN	721 GWh	Feb 1958	Sep 2025	Subbituminous Coal : 99.7%
Cross Winds Energy Park	Consumers Energy Co - (MI)	Unionville, MI	721 GWh	Nov 2014	Dec 2024	Wind
Freeborn Wind Farm	Northern States Power Co - Minnesota	Glenville, MN	720 GWh	Apr 2021	Sep 2025	Wind
R D Green	Big Rivers Electric Corp	Robards, KY	714 GWh	Nov 1979	Sep 2025	Natural Gas
FPL Energy Crystal Lake Wind II LLC	FPL Energy Crystal Lake Wind II LLC	Britt, IA	713 GWh	Dec 2008	Sep 2025	Wind
Ida Grove II	MidAmerican Energy Co	Ida Grove, IA	711 GWh	Nov 2019	Sep 2025	Wind
Golden Plains	Interstate Power and Light Co	Buffalo Center, IA	708 GWh	Feb 2020	Sep 2025	Wind
Harvest Ridge Wind Farm	Harvest Ridge Wind Farm	Newman, IL	678 GWh	Jun 2020	Sep 2025	Wind
Dunns Bridge II Solar	Dunns Bridge II Solar and Storage Generation LLC	San Pierre, IN	671 GWh	-	Sep 2025	Solar
California Ridge Wind Energy LLC	SunEdison LLC	Fithian, IL	669 GWh	Nov 2012	Sep 2025	Wind
Ledyard Windpower, LLC	Duke Energy Renewables Services	Lakota, IA	668 GWh	Nov 2022	Sep 2025	Wind
Chickasaw Wind Farm	MidAmerican Energy Co	New Hampton, IA	660 GWh	Nov 2023	Sep 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
Sugar Creek Wind One LLC	Sugar Creek Wind One LLC	TBD, IL	643 GWh	Oct 2020	Sep 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	640 GWh	Oct 2018	Sep 2025	Wind
Glacier Sands Wind Power, LLC	Glacier Sands Wind Power, LLC	Mason City, IL	635 GWh	Oct 2021	Sep 2025	Wind
Bison 4 Wind Energy Center	ALLETE, Inc.	New Salem, ND	624 GWh	Dec 2014	Dec 2024	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
Foxtail Wind, LLC	Foxtail Wind, LLC	Forbes, ND	607 GWh	Dec 2019	Sep 2025	Wind
Rush Island	Union Electric Co - (MO)	Festus, MO	603 GWh	Feb 1976	Sep 2024	Subbituminous Coal : 98.2% Distillate Fuel Oil : 1.8%
Merricourt Wind Energy Center	Otter Tail Power Co	Kulm, ND	603 GWh	Nov 2020	Sep 2025	Wind
Tatanka Ridge	Tatanka Ridge LLC	Toronto, SD	595 GWh	Dec 2020	Sep 2025	Wind
FPL Energy Ashtabula Wind LLC	FPL Energy Ashtabula Wind LLC	Luverne, ND	594 GWh	Nov 2008	Dec 2024	Wind
Prairie Wind Farm	MidAmerican Energy Co	Montezuma, IA	586 GWh	Dec 2017	Sep 2025	Wind
Geismar Cogen	Air Liquide Large Industries U S LP	Geismar, LA	586 GWh	Dec 1999	Dec 2024	Natural Gas

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	696.7 GWh	4
#27	Associated Electric Cooperative, Inc.	23.6 TWh	47
#13	Duke Energy Carolinas	112.5 TWh	565
#52	Duke Energy Progress West	4.3 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	34.4 TWh	25
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#5	Southwest Power Pool	299.9 TWh	835
#49	Southwestern Power Administration	5.2 TWh	34
#9	Tennessee Valley Authority	161.6 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	655.1 TWh	2,831
#4	Electric Reliability Council of Texas, Inc.	485.0 TWh	1,313
#5	Southwest Power Pool	299.9 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	188.0 TWh	2,075
#9	Tennessee Valley Authority	161.6 TWh	204
#10	Florida Power & Light Co.	148.9 TWh	187
#12	New York Independent System Operator	131.6 TWh	1,211
#13	Duke Energy Carolinas	112.5 TWh	565