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	Apr 2026
Annual Generation	664.4 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 \| 36.9% Coal \| 27.6% Wind \| 14.8% Nuclear \| 13.6% Solar \| 5% Water \| 1.4% 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
Tatanka Wind Power LLC	Acciona Wind Energy USA LLC	Ashley, ND	436 GWh	Dec 2007	Feb 2026	Wind
Lansing BWL REO Town Plant	Lansing Board of Water and Light	Lansing, MI	437 GWh	Jun 2013	Dec 2024	Natural Gas
Sappi Cloquet Mill	Sappi Cloquet LLC	Cloquet, MN	437 GWh	Dec 1928	Feb 2026	Black Liquor : 62.2% Wood/Wood Waste Solids : 18.0% Natural Gas : 15.5% Water : 3.3%
Lake Benton II	Northern States Power Co - Minnesota	Ruthton, MN	438 GWh	May 1999	Dec 2024	Wind
Buffalo Ridge II LLC	Avangrid Power LLC	Elkton, SD	442 GWh	Nov 2010	Feb 2026	Wind
Prairie Rose Wind Farm	Enel Green Power NA, Inc.	Hardwick, MN	453 GWh	Nov 2012	Feb 2026	Wind
Polaris Wind Park	DTE Electric Company	North Star Township, MI	455 GWh	Apr 2020	Feb 2026	Wind
Granite City Works	United States Steel Granite City Works	Granite City, IL	459 GWh	May 2010	Feb 2026	Natural Gas : 50.8% Purchased Steam : 49.2%
Pioneer Trail Wind Farm, LLC	Big Sky Wind, LLC	Paxton, IL	459 GWh	Nov 2011	Dec 2024	Wind
Ford County Wind Farm LLC	Ford Ridge	Ford County, IL	460 GWh	Feb 2022	Feb 2026	Wind
Gaylord Container Bogalusa	Temple-Inland Corp	Bogalusa, LA	461 GWh	May 1979	Feb 2026	Black Liquor : 56.4% Wood/Wood Waste Solids : 37.2% Natural Gas : 6.4%
Escanaba Mill	Billerud Escanaba LLC	Escanaba, MI	462 GWh	Dec 1968	Feb 2026	Black Liquor : 45.7% Natural Gas : 31.3% Wood/Wood Waste Solids : 22.3% Residual Fuel Oil : 0.7%
Laurel Wind Farm	MidAmerican Energy Co	Laurel, IA	463 GWh	Nov 2011	Dec 2024	Wind
Heartland Farms	Consumers Energy Co - (MI)	Middleton, MI	464 GWh	Mar 2024	Feb 2026	Wind
Georgetown	AES Indiana	Indianapolis, IN	466 GWh	May 2000	Dec 2024	Natural Gas
Westrock Hodge (LA)	Westrock (LA)	Hodge, LA	466 GWh	Nov 1952	Dec 2024	Black Liquor : 50.4% Natural Gas : 35.5% Wood/Wood Waste Solids : 14.2%
Walleye Wind	Walleye Wind, LLC	Beaver Creek, MN	468 GWh	Nov 2022	Feb 2026	Wind
Wellsburg Wind Project	MidAmerican Energy Co	Wellsburg, IA	469 GWh	Nov 2014	Dec 2024	Wind
Adams Wind	MidAmerican Energy Co	Lenox, IA	474 GWh	Sep 2015	Dec 2024	Wind
Deerfield Wind Energy, LLC	Deerfield Wind Energy, LLC	Kinde, MI	478 GWh	Jan 2017	Feb 2026	Wind
Astoria Station	Otter Tail Power Co	Astoria, SD	478 GWh	Mar 2021	Feb 2026	Natural Gas
Langdon Renewables, LLC	FPL Energy Langdon Wind LLC	Langdon, ND	482 GWh	Nov 2007	Dec 2024	Wind
Richland (IA)	Interstate Power and Light Co	Odebolt, IA	483 GWh	Aug 2020	Feb 2026	Wind
Meridian Wind Park	DTE Electric Company	Merrill, MI	492 GWh	Mar 2023	Feb 2026	Wind
Maple Flats	Invenergy Services LLC	Louisville, IL	493 GWh	Oct 2024	Feb 2026	Solar
Osage Dam	Union Electric Co - (MO)	Eldon, MO	497 GWh	Sep 1931	Dec 2024	Water
Alpine Power Plant	Wolverine Power Supply Coop	Elmira, MI	499 GWh	May 2016	Dec 2024	Natural Gas
Dunns Bridge I Solar	Dunns Bridge Solar Center LLC	Wheatfield, IN	507 GWh	May 2023	Feb 2026	Solar
Delta Wind Farm (MS)	AES Clean Energy	Dundee, MS	512 GWh	Mar 2024	Feb 2026	Wind
Geismar	BASF Corporation	Geismar, LA	514 GWh	Jun 1985	Dec 2024	Natural Gas : 63.1% Other Gas : 36.9%
Cardinal Point Wind	Cardinal Point LLC	Sciota, IL	514 GWh	Feb 2020	Feb 2026	Wind
RockGen Energy Center	Dairyland Power Coop	Cambridge, WI	518 GWh	May 2001	Feb 2026	Natural Gas : 97.8% Distillate Fuel Oil : 2.2%
Thunder Spirit Wind, LLC	Montana-Dakota Utilities Co	Hettinger, ND	523 GWh	Nov 2015	Dec 2024	Wind
Plant 31 Paper Mill	Graphic Packaging International	West Monroe, LA	523 GWh	Dec 1963	Dec 2024	Natural Gas : 63.2% Black Liquor : 25.1% Wood/Wood Waste Solids : 11.7%
Kossuth	Wisconsin Power & Light Co	Lu Verne, IA	524 GWh	Sep 2020	Feb 2026	Wind
FPL Energy Story Wind LLC	FPL Energy Story Wind LLC	Zearing, IA	538 GWh	Nov 2008	Feb 2026	Wind
Intrepid	MidAmerican Energy Co	Schaller, IA	549 GWh	Nov 2004	Dec 2024	Wind
Georgia-Pacific Monticello Paper	Georgia-Pacific Monticello LLC	Monticello, MS	550 GWh	May 1968	Dec 2024	Black Liquor : 47.2% Natural Gas : 40.2% Wood/Wood Waste Solids : 12.6%
SABIC Innovative Plastics Mt. Vernon	SABIC IP Mt. Vernon, LLC	Mount Vernon, IN	551 GWh	May 1996	Feb 2026	Natural Gas
Moraine Sands Wind Power	Moraine Sands Wind Power, LLC	Mason City, IL	553 GWh	Nov 2023	Feb 2026	Wind
Adair Wind Farm	MidAmerican Energy Co	Adair, IA	555 GWh	Nov 2008	Dec 2024	Wind
Merricourt Wind Energy Center	Otter Tail Power Co	Kulm, ND	555 GWh	Nov 2020	Feb 2026	Wind
English Farms	Interstate Power and Light Co	Montezuma, IA	560 GWh	Feb 2019	Feb 2026	Wind
Oxbow Solar 1	Lightsource Renewable Energy Asset Management, LLC	New Roads, LA	560 GWh	Jun 2024	Feb 2026	Solar
Tatanka Ridge	Tatanka Ridge LLC	Toronto, SD	561 GWh	Dec 2020	Feb 2026	Wind
NAFTA Region Olefins Complex Cogen Fac	BASF Corp	Port Arthur, TX	562 GWh	Jun 2001	Dec 2024	Natural Gas
Carroll Wind Farm	MidAmerican Energy Co	Carroll, IA	563 GWh	Nov 2008	Dec 2024	Wind
Echo Wind Park	DTE Electric Company	Elkton, MI	569 GWh	Dec 2013	Feb 2026	Wind
Sugar Creek Wind One LLC	Sugar Creek Wind One LLC	TBD, IL	571 GWh	Oct 2020	Feb 2026	Wind
Century	MidAmerican Energy Co	Blairsburg, IA	572 GWh	Aug 2005	Dec 2024	Wind
Shell Chemical	Shell Chemical LP - Geismar	Geismar, LA	572 GWh	Jul 2002	Dec 2024	Natural Gas
FPL Energy Crystal Lake Wind LLC	FPL Energy Crystal Lake Wind LLC	Britt, IA	573 GWh	Nov 2008	Feb 2026	Wind
Walnut Wind Farm	MidAmerican Energy Co	Walnut, IA	584 GWh	Nov 2008	Dec 2024	Wind
Geismar Cogen	Air Liquide Large Industries U S LP	Geismar, LA	586 GWh	Dec 1999	Dec 2024	Natural Gas
Foxtail Wind, LLC	Foxtail Wind, LLC	Forbes, ND	589 GWh	Dec 2019	Feb 2026	Wind
Indiana Crossroads Wind Farm II	Indiana Crossroads Wind Farm II LLC	Wolcott, IN	590 GWh	Nov 2024	Feb 2026	Wind
Prairie Wind Farm	MidAmerican Energy Co	Montezuma, IA	590 GWh	Dec 2017	Feb 2026	Wind
FPL Energy Ashtabula Wind LLC	FPL Energy Ashtabula Wind LLC	Luverne, ND	594 GWh	Nov 2008	Dec 2024	Wind
Rush Island	Union Electric Co - (MO)	Festus, MO	603 GWh	Feb 1976	Sep 2024	Subbituminous Coal : 98.2% Distillate Fuel Oil : 1.8%
JCO Oxides Olefins Plant	Indorama Ventures	Port Neeches, TX	614 GWh	Aug 1992	Dec 2024	Natural Gas
Border Winds Wind Farm	Northern States Power Co - Minnesota	Rolla, ND	614 GWh	Jul 2015	Dec 2024	Wind
Bison 4 Wind Energy Center	ALLETE, Inc.	New Salem, ND	624 GWh	Dec 2014	Dec 2024	Wind
Chickasaw Wind Farm	MidAmerican Energy Co	New Hampton, IA	624 GWh	Nov 2023	Feb 2026	Wind
Glacier Sands Wind Power, LLC	Glacier Sands Wind Power, LLC	Mason City, IL	627 GWh	Oct 2021	Feb 2026	Wind
Meadow Lake Wind Farm VI LLC	Meadow Lake Wind Farm VI LLC	Remington, IN	635 GWh	Oct 2018	Feb 2026	Wind
Ledyard Windpower, LLC	Duke Energy Renewables Services	Lakota, IA	637 GWh	Nov 2022	Feb 2026	Wind
Sheboygan Falls	Wisconsin Power & Light Co	Sheboygan, WI	642 GWh	May 2005	Dec 2024	Natural Gas
California Ridge Wind Energy LLC	SunEdison LLC	Fithian, IL	644 GWh	Nov 2012	Feb 2026	Wind
A B Brown	Southern Indiana Gas & Elec Co	Mount Vernon, IN	653 GWh	Feb 1979	Feb 2026	Natural Gas
ExxonMobil Baton Rouge Turbine Generator	Exxon Mobil Corp	Baton Rouge, LA	654 GWh	Apr 1990	Dec 2024	Natural Gas
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%
Harvest Ridge Wind Farm	Harvest Ridge Wind Farm	Newman, IL	664 GWh	Jun 2020	Feb 2026	Wind
High Prairie Wind Farm	Union Electric Co - (MO)	Queen City, MO	675 GWh	Nov 2020	Feb 2026	Wind
Ida Grove II	MidAmerican Energy Co	Ida Grove, IA	699 GWh	Nov 2019	Feb 2026	Wind
Turtle Creek Wind Farm LLC	Turtle Creek Wind Farm LLC	St. Ansgar, IA	699 GWh	Nov 2018	Feb 2026	Wind
R D Green	Big Rivers Electric Corp	Robards, KY	701 GWh	Nov 1979	Feb 2026	Natural Gas
Archer Daniels Midland Clinton	Archer Daniels Midland Co	Clinton, IA	705 GWh	Jan 2009	Feb 2026	Subbituminous Coal : 87.9% Other Biomass Solids : 7.5% Bituminous Coal : 4.6%
FPL Energy Crystal Lake Wind II LLC	FPL Energy Crystal Lake Wind II LLC	Britt, IA	708 GWh	Dec 2008	Feb 2026	Wind
Whispering Willow North	Interstate Power and Light Co	Latimer, IA	712 GWh	Dec 2019	Feb 2026	Wind
Allen S King	Northern States Power Co - Minnesota	Oak Park Heights, MN	718 GWh	Feb 1958	Feb 2026	Subbituminous Coal : 99.4%
Cross Winds Energy Park	Consumers Energy Co - (MI)	Unionville, MI	721 GWh	Nov 2014	Dec 2024	Wind
Vermillion Energy Facility	Duke Energy Ohio Inc	Cayuga, IN	728 GWh	May 2000	Dec 2024	Natural Gas
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	753 GWh	Feb 2020	Feb 2026	Wind
Red Pine Wind Project	EDF Renewable Asset Holdings, Inc.	Ivanhoe, MN	762 GWh	Nov 2017	Feb 2026	Wind
Freeborn Wind Farm	Northern States Power Co - Minnesota	Glenville, MN	762 GWh	Apr 2021	Feb 2026	Wind
Dean	DTE Electric Company	East China, MI	770 GWh	May 2002	Dec 2024	Natural Gas
Pleasant Valley Wind Farm	Northern States Power Co - Minnesota	Dexter, MN	770 GWh	Jul 2015	Dec 2024	Wind
Crocker Wind Farm	Crocker Wind Farm, LLC	Conde, SD	770 GWh	Oct 2019	Feb 2026	Wind
Odell Wind Farm	Algonquin Power Co	Mountain Lake, MN	773 GWh	Jun 2016	Dec 2024	Wind
Muscatine Plant #1	Board of Water Electric & Communications	Muscatine, IA	775 GWh	Mar 1958	Feb 2026	Subbituminous Coal : 99.7%
Plymouth Wind	MidAmerican Energy Co	Remsen, IA	778 GWh	Dec 2021	Feb 2026	Wind
Great Pathfinder Wind	Great Pathfinder Wind	Stratford, IA	778 GWh	Jan 2023	Feb 2026	Wind
Heartland Divide II	Heartland Divide II	Audubon, IA	781 GWh	Feb 2022	Feb 2026	Wind
Marion	Southern Illinois Power Coop	Marion, IL	783 GWh	May 1963	Feb 2026	Bituminous Coal : 85.9% Natural Gas : 13.6% Distillate Fuel Oil : 0.5%
Crowned Ridge Wind Energy Center	Crowned Ridge Wind, LLC	Watertown, SD	788 GWh	Nov 2019	Feb 2026	Wind
Southern Hills Wind Farm	MidAmerican Energy Co	Creston, IA	793 GWh	Feb 2021	Feb 2026	Wind
Nobles Wind Project	Northern States Power Co - Minnesota	Reading, MN	801 GWh	Nov 2010	Feb 2026	Wind
Lundgren Wind Project	MidAmerican Energy Co	Otho, IA	804 GWh	Jul 2014	Dec 2024	Wind
Glaciers Edge Wind Project	EDF Renewable Asset Holdings, Inc.	Cleghorn, IA	805 GWh	Nov 2019	Feb 2026	Wind

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#60	Alcoa Power Generating, Inc. - Yadkin Division	582.3 GWh	4
#27	Associated Electric Cooperative, Inc.	23.9 TWh	47
#13	Duke Energy Carolinas	112.5 TWh	565
#52	Duke Energy Progress West	4.4 TWh	10
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.0 TWh	25
#1	PJM Interconnection, LLC	881.5 TWh	2,465
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#5	Southwest Power Pool	302.9 TWh	835
#51	Southwestern Power Administration	4.6 TWh	34
#9	Tennessee Valley Authority	163.1 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	881.5 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	664.4 TWh	2,831
#3	Electric Reliability Council of Texas, Inc.	488.2 TWh	1,313
#5	Southwest Power Pool	302.9 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	176.8 TWh	2,075
#9	Tennessee Valley Authority	163.1 TWh	204
#10	Florida Power & Light Co.	150.9 TWh	187
#12	New York Independent System Operator	134.4 TWh	1,211
#13	Duke Energy Carolinas	112.5 TWh	565