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
Walnut Wind Farm	MidAmerican Energy Co	Walnut, IA	584 GWh	Nov 2008	Dec 2024	Wind
Merricourt Wind Energy Center	Otter Tail Power Co	Kulm, ND	584 GWh	Nov 2020	Dec 2025	Wind
Sugar Creek Wind One LLC	Sugar Creek Wind One LLC	TBD, IL	582 GWh	Oct 2020	Dec 2025	Wind
Echo Wind Park	DTE Electric Company	Elkton, MI	575 GWh	Dec 2013	Dec 2025	Wind
Moraine Sands Wind Power	Moraine Sands Wind Power, LLC	Mason City, IL	574 GWh	Nov 2023	Dec 2025	Wind
Shell Chemical	Shell Chemical LP - Geismar	Geismar, LA	572 GWh	Jul 2002	Dec 2024	Natural Gas
Century	MidAmerican Energy Co	Blairsburg, IA	572 GWh	Aug 2005	Dec 2024	Wind
English Farms	Interstate Power and Light Co	Montezuma, IA	571 GWh	Feb 2019	Dec 2025	Wind
Carroll Wind Farm	MidAmerican Energy Co	Carroll, IA	563 GWh	Nov 2008	Dec 2024	Wind
NAFTA Region Olefins Complex Cogen Fac	BASF Corp	Port Arthur, TX	562 GWh	Jun 2001	Dec 2024	Natural Gas
Oxbow Solar 1	Lightsource Renewable Energy Asset Management, LLC	New Roads, LA	556 GWh	Jun 2024	Dec 2025	Solar
Adair Wind Farm	MidAmerican Energy Co	Adair, IA	555 GWh	Nov 2008	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%
Intrepid	MidAmerican Energy Co	Schaller, IA	549 GWh	Nov 2004	Dec 2024	Wind
FPL Energy Story Wind LLC	FPL Energy Story Wind LLC	Zearing, IA	538 GWh	Nov 2008	Dec 2025	Wind
Kossuth	Wisconsin Power & Light Co	Lu Verne, IA	533 GWh	Sep 2020	Dec 2025	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%
Thunder Spirit Wind, LLC	Montana-Dakota Utilities Co	Hettinger, ND	523 GWh	Nov 2015	Dec 2024	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	510 GWh	Feb 2020	Dec 2025	Wind
Dunns Bridge I Solar	Dunns Bridge Solar Center LLC	Wheatfield, IN	508 GWh	May 2023	Dec 2025	Solar
Delta Wind Farm (MS)	AES Clean Energy	Dundee, MS	500 GWh	Mar 2024	Dec 2025	Wind
Alpine Power Plant	Wolverine Power Supply Coop	Elmira, MI	499 GWh	May 2016	Dec 2024	Natural Gas
Meridian Wind Park	DTE Electric Company	Merrill, MI	498 GWh	Mar 2023	Dec 2025	Wind
Richland (IA)	Interstate Power and Light Co	Odebolt, IA	497 GWh	Aug 2020	Dec 2025	Wind
A B Brown	Southern Indiana Gas & Elec Co	Mount Vernon, IN	497 GWh	Feb 1979	Dec 2025	Natural Gas
Osage Dam	Union Electric Co - (MO)	Eldon, MO	497 GWh	Sep 1931	Dec 2024	Water
RockGen Energy Center	Dairyland Power Coop	Cambridge, WI	496 GWh	May 2001	Dec 2025	Natural Gas : 99.1% Distillate Fuel Oil : 0.9%
Maple Flats	Invenergy Services LLC	Louisville, IL	493 GWh	Oct 2024	Dec 2025	Solar
Langdon Renewables, LLC	FPL Energy Langdon Wind LLC	Langdon, ND	482 GWh	Nov 2007	Dec 2024	Wind
Buffalo Ridge II LLC	Avangrid Power LLC	Elkton, SD	479 GWh	Nov 2010	Dec 2025	Wind
Walleye Wind	Walleye Wind, LLC	Beaver Creek, MN	479 GWh	Nov 2022	Dec 2025	Wind
SABIC Innovative Plastics Mt. Vernon	SABIC IP Mt. Vernon, LLC	Mount Vernon, IN	478 GWh	May 1996	Dec 2025	Natural Gas
Tatanka Wind Power LLC	Acciona Wind Energy USA LLC	Ashley, ND	476 GWh	Dec 2007	Dec 2025	Wind
Deerfield Wind Energy, LLC	Deerfield Wind Energy, LLC	Kinde, MI	475 GWh	Jan 2017	Dec 2025	Wind
Adams Wind	MidAmerican Energy Co	Lenox, IA	474 GWh	Sep 2015	Dec 2024	Wind
Heartland Farms	Consumers Energy Co - (MI)	Middleton, MI	470 GWh	Mar 2024	Dec 2025	Wind
Wellsburg Wind Project	MidAmerican Energy Co	Wellsburg, IA	469 GWh	Nov 2014	Dec 2024	Wind
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%
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%
Georgetown	AES Indiana	Indianapolis, IN	466 GWh	May 2000	Dec 2024	Natural Gas
High Prairie Wind Farm	Union Electric Co - (MO)	Queen City, MO	466 GWh	Nov 2020	Dec 2025	Wind
Ford County Wind Farm LLC	Ford Ridge	Ford County, IL	465 GWh	Feb 2022	Dec 2025	Wind
Laurel Wind Farm	MidAmerican Energy Co	Laurel, IA	463 GWh	Nov 2011	Dec 2024	Wind
Prairie Rose Wind Farm	Enel Green Power NA, Inc.	Hardwick, MN	460 GWh	Nov 2012	Dec 2025	Wind
Pioneer Trail Wind Farm, LLC	Big Sky Wind, LLC	Paxton, IL	459 GWh	Nov 2011	Dec 2024	Wind
Astoria Station	Otter Tail Power Co	Astoria, SD	455 GWh	Mar 2021	Dec 2025	Natural Gas
Polaris Wind Park	DTE Electric Company	North Star Township, MI	455 GWh	Apr 2020	Dec 2025	Wind
Gaylord Container Bogalusa	Temple-Inland Corp	Bogalusa, LA	450 GWh	May 1979	Dec 2025	Black Liquor : 56.0% Wood/Wood Waste Solids : 37.3% Natural Gas : 6.7%
Granite City Works	United States Steel Granite City Works	Granite City, IL	448 GWh	May 2010	Dec 2025	Natural Gas : 50.8% Purchased Steam : 49.2%
Buffalo Ridge Wind	Buffalo Ridge Wind, LLC	Lake Benton, MN	445 GWh	Nov 2022	Dec 2025	Wind
Sappi Cloquet Mill	Sappi Cloquet LLC	Cloquet, MN	443 GWh	Dec 1928	Dec 2025	Black Liquor : 63.5% Wood/Wood Waste Solids : 17.9% Natural Gas : 14.2% Water : 3.6%
Glen Ullin Energy Center	ALLETE Clean Energy	Glen Ullin, ND	439 GWh	Nov 2019	Dec 2025	Wind
Lake Benton II	Northern States Power Co - Minnesota	Ruthton, MN	438 GWh	May 1999	Dec 2024	Wind
Lansing BWL REO Town Plant	Lansing Board of Water and Light	Lansing, MI	437 GWh	Jun 2013	Dec 2024	Natural Gas
Gerald Andrus	Entergy Mississippi LLC	Greenville, MS	435 GWh	Dec 1974	Aug 2024	Natural Gas : 99.9%
Bishop Hill III	Invenergy Services LLC	Cambridge, IL	429 GWh	May 2018	Dec 2025	Wind
Silver Creek	Cooperative Energy	Prentiss, MS	428 GWh	May 2003	Dec 2024	Natural Gas
Big Cypress Solar, LLC	Big Cypress Solar, LLC	Crawfordsville, AR	426 GWh	Nov 2023	Dec 2025	Solar
Heartland Divide Wind Project, LLC	Heartland Divide Wind Project, LLC	Melville, IA	426 GWh	Nov 2018	Dec 2025	Wind
Whispering Willow Wind Farm - East	Interstate Power and Light Co	Iowa Falls, IA	425 GWh	Nov 2009	Dec 2024	Wind
Courtenay Wind Farm	Northern States Power Co - Minnesota	Courtenay, ND	423 GWh	Nov 2016	Dec 2025	Wind
Heat Recovery Coke Facility	Cokenergy Inc	East Chicago, IN	419 GWh	Mar 1998	Dec 2025	Waste Heat
Pearl River Solar Park LLC	Pearl River Solar Park, LLC	Morton, MS	419 GWh	Jun 2024	Dec 2025	Solar
Sherco Solar I	Northern States Power Co - Minnesota	Clear Lake, MN	419 GWh	Sep 2024	Dec 2025	Solar
Huck Finn Renewable Energy Center	Union Electric Co - (MO)	Vandalia, MO	417 GWh	Nov 2024	Dec 2025	Solar
Cannelton Hydroelectric Plant	American Mun Power-Ohio, Inc	Hawesville, KY	416 GWh	Dec 2015	Dec 2024	Water
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%
Morning Light Wind Farm	MidAmerican Energy Co	Adair, IA	413 GWh	Sep 2012	Dec 2024	Wind
Washington Parish Energy Center	Entergy Louisiana LLC	Bogalusa, LA	411 GWh	Oct 2020	Dec 2025	Natural Gas
Oak Ridge Solar	AES Clean Energy	Oak Ridge, LA	410 GWh	Nov 2023	Dec 2025	Solar
Primient	Primary Products Ingredients Americas, LLC d/b/a Primient	Lafayette, IN	406 GWh	May 2021	Dec 2024	Natural Gas
DeRidder Mill	Packaging Corporation of America	DeRidder, LA	402 GWh	Sep 1969	Dec 2024	Black Liquor : 46.7% Wood/Wood Waste Solids : 34.3% Natural Gas : 18.9%
Formosa Plastics	Formosa Plastics Corp	Baton Rouge, LA	402 GWh	Apr 1985	Dec 2024	Natural Gas
Dam 2	Arkansas Electric Coop Corp	Dumas, AR	401 GWh	May 1999	Dec 2024	Water
Vienna Wind Farm	MidAmerican Energy Co	Marshalltown, IA	398 GWh	Oct 2012	Dec 2024	Wind
Crooked Lake Solar, LLC	Crooked Lake Solar, LLC	Blytheville, AR	393 GWh	Apr 2024	Dec 2025	Solar
Fenton Wind Farm	EDF Renewable Asset Holdings, Inc.	Chandler, MN	388 GWh	Aug 2007	Dec 2025	Wind
New Frontier Wind	Meadowlark Wind I LLC	Ruso, ND	387 GWh	Nov 2018	Dec 2025	Wind
Pegasus Wind	Pegasus Wind, LLC	Reese, MI	387 GWh	Nov 2019	Dec 2025	Wind
Pocahontas Prairie Wind Farm	MidAmerican Energy Co	Pomeroy, IA	382 GWh	Jan 2012	Dec 2024	Wind
Baldwin Wind LLC	Baldwin Wind LLC	Wilton, ND	381 GWh	Nov 2010	Dec 2024	Wind
Quilt Block Wind Farm LLC	Quilt Block Wind Farm LLC	Darlington, WI	381 GWh	Aug 2017	Dec 2025	Wind
Pine River Wind Park	DTE Electric Company	Shepherd, MI	381 GWh	Feb 2019	Dec 2025	Wind
Grand Meadow	Northern States Power Co - Minnesota	Dexter, MN	380 GWh	Nov 2008	Dec 2024	Wind
Oliver Wind III, LLC	Oliver Wind III, LLC	Mandan, ND	380 GWh	Dec 2016	Dec 2025	Wind
Prairie Wolf Solar LLC	National Grid Renewables	Ashmore Township, IL	380 GWh	Oct 2021	Dec 2025	Solar
Trimont Area Wind Farm	Avangrid Power LLC	Trimont, MN	379 GWh	Oct 2005	Dec 2024	Wind
Indiana Crossroads Solar Park	Meadow Lake Solar Park	Reynolds, IN	379 GWh	May 2023	Dec 2025	Solar
Victory Wind Farm	MidAmerican Energy Co	Westside, IA	378 GWh	Nov 2006	Dec 2024	Wind
Stoneray Power Partners, LLC	EDF Renewable Asset Holdings, Inc.	Woodstock, MN	377 GWh	Jan 2019	Dec 2025	Wind
Grant County	Wisconsin Power & Light Co	Town of Potosi, WI	376 GWh	Apr 2024	Dec 2025	Solar
White Oak Energy LLC	White Oak Energy LLC	Carlock, IL	376 GWh	May 2011	Dec 2024	Wind
Garden Wind LLC	Garden Wind LLC	Zearing, IA	375 GWh	Nov 2009	Dec 2025	Wind
F.D. Kuester Generating Station	Upper Michigan Energy Resources Company	Negaunee, MI	375 GWh	Feb 2019	Dec 2024	Natural Gas
Lakefield Wind Project LLC	EDF Renewable Asset Holdings, Inc.	Lakefield, MN	374 GWh	Sep 2011	Dec 2025	Wind
Cavalry Solar Hybrid	Cavalry Energy Center LLC	Monon, IN	374 GWh	Apr 2024	Dec 2025	Solar
Long Lake Solar, LLC	Long Lake Solar, LLC	West Helena, AR	371 GWh	-	Dec 2025	Solar
Hoopeston Wind LLC	Hoopeston Wind LLC	Rossville, IL	371 GWh	Feb 2015	Dec 2024	Wind
International Paper Red River Mill	Red River Mill Intl Paper Company	Campti, LA	371 GWh	Nov 2008	Dec 2023	Black Liquor : 64.7% Wood/Wood Waste Solids : 22.1% Natural Gas : 13.2%

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