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	Jun 2025
Annual Generation	643.6 TWh
Power Plants	2,788
Utilities	1,282
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 \| 36.7% Coal \| 28.1% Wind \| 15.5% Nuclear \| 14.2% Solar \| 3.4% Water \| 1.6% Other Fuel \| 0.5%

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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
Walnut Wind Farm	MidAmerican Energy Co	Walnut, IA	584 GWh	Nov 2008	Dec 2024	Wind
Dakota Range Wind	Northern States Power Co - Minnesota	Marvin, SD	581 GWh	Dec 2021	Apr 2025	Wind
Allen S King	Northern States Power Co - Minnesota	Oak Park Heights, MN	580 GWh	Feb 1958	Apr 2025	Subbituminous Coal : 99.5%
Echo Wind Park	DTE Electric Company	Elkton, MI	578 GWh	Dec 2013	Apr 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
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
FPL Energy Story Wind LLC	FPL Energy Story Wind LLC	Zearing, IA	555 GWh	Nov 2008	Apr 2025	Wind
Adair Wind Farm	MidAmerican Energy Co	Adair, IA	555 GWh	Nov 2008	Dec 2024	Wind
Kossuth	Wisconsin Power & Light Co	Lu Verne, IA	553 GWh	Sep 2020	Apr 2025	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
Cardinal Point Wind	Cardinal Point LLC	Sciota, IL	526 GWh	Feb 2020	Apr 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
Dunns Bridge I Solar	Dunns Bridge Solar Center LLC	Wheatfield, IN	519 GWh	May 2023	Apr 2025	Solar
Delta Wind Farm (MS)	AES Clean Energy	Dundee, MS	517 GWh	Mar 2024	Apr 2025	Wind
Richland	Interstate Power and Light Co	Odebolt, IA	516 GWh	Aug 2020	Apr 2025	Wind
Geismar	BASF Corporation	Geismar, LA	514 GWh	Jun 1985	Dec 2024	Natural Gas : 63.1% Other Gas : 36.9%
Meridian Wind Park	DTE Electric Company	Merrill, MI	501 GWh	Mar 2023	Apr 2025	Wind
Alpine Power Plant	Wolverine Power Supply Coop	Elmira, MI	499 GWh	May 2016	Dec 2024	Natural Gas
Osage Dam	Union Electric Co - (MO)	Eldon, MO	497 GWh	Sep 1931	Dec 2024	Water
Deerfield Wind Energy, LLC	Deerfield Wind Energy, LLC	Kinde, MI	496 GWh	Jan 2017	Apr 2025	Wind
Walleye Wind	Walleye Wind, LLC	Beaver Creek, MN	493 GWh	Nov 2022	Apr 2025	Wind
Langdon Renewables, LLC	FPL Energy Langdon Wind LLC	Langdon, ND	482 GWh	Nov 2007	Dec 2024	Wind
Ford County Wind Farm LLC	Ford Ridge	Ford County, IL	479 GWh	Feb 2022	Apr 2025	Wind
Heartland Farms	Consumers Energy Co - (MI)	Middleton, MI	478 GWh	Mar 2024	Apr 2025	Wind
Oxbow Solar 1	Lightsource Renewable Energy Asset Management, LLC	New Roads, LA	475 GWh	Jun 2024	Apr 2025	Solar
Adams Wind	MidAmerican Energy Co	Lenox, IA	474 GWh	Sep 2015	Dec 2024	Wind
Wellsburg Wind Project	MidAmerican Energy Co	Wellsburg, IA	469 GWh	Nov 2014	Dec 2024	Wind
Buffalo Ridge Wind	Buffalo Ridge Wind, LLC	Lake Benton, MN	467 GWh	Nov 2022	Apr 2025	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%
Georgetown	AES Indiana	Indianapolis, IN	466 GWh	May 2000	Dec 2024	Natural Gas
Sappi Cloquet Mill	Sappi Cloquet LLC	Cloquet, MN	464 GWh	Dec 1928	Apr 2025	Black Liquor : 66.3% Wood/Wood Waste Solids : 17.1% Natural Gas : 12.2% Water : 3.8%
Laurel Wind Farm	MidAmerican Energy Co	Laurel, IA	463 GWh	Nov 2011	Dec 2024	Wind
Escanaba Mill	Billerud Escanaba LLC	Escanaba, MI	460 GWh	Dec 1968	Apr 2025	Black Liquor : 45.5% Natural Gas : 31.2% Wood/Wood Waste Solids : 22.5% Residual Fuel Oil : 0.6%
Pioneer Trail Wind Farm, LLC	Big Sky Wind, LLC	Paxton, IL	459 GWh	Nov 2011	Dec 2024	Wind
Bishop Hill III	Invenergy Services LLC	Cambridge, IL	458 GWh	May 2018	Apr 2025	Wind
Granite City Works	United States Steel Granite City Works	Granite City, IL	454 GWh	May 2010	Apr 2025	Natural Gas : 50.8% Purchased Steam : 49.2%
Oak Ridge Solar	AES Clean Energy	Oak Ridge, LA	451 GWh	Nov 2023	Apr 2025	Solar
Valley (WI)	Wisconsin Electric Power Co	Milwaukee, WI	449 GWh	May 1968	Apr 2025	Natural Gas
Glen Ullin Energy Center	ALLETE Clean Energy	Glen Ullin, ND	446 GWh	Nov 2019	Apr 2025	Wind
Heat Recovery Coke Facility	Cokenergy Inc	East Chicago, IN	440 GWh	Mar 1998	Apr 2025	Waste Heat
Heartland Divide Wind Project, LLC	Heartland Divide Wind Project, LLC	Melville, IA	439 GWh	Nov 2018	Apr 2025	Wind
Polaris Wind Park	DTE Electric Company	North Star Township, MI	438 GWh	Apr 2020	Apr 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%
Buffalo Ridge II LLC	Avangrid Power LLC	Elkton, SD	429 GWh	Nov 2010	Apr 2025	Wind
Silver Creek	Cooperative Energy	Prentiss, MS	428 GWh	May 2003	Dec 2024	Natural Gas
Tatanka Wind Power LLC	Acciona Wind Energy USA LLC	Ashley, ND	427 GWh	Dec 2007	Apr 2025	Wind
Oliver Wind III, LLC	Oliver Wind III, LLC	Mandan, ND	426 GWh	Dec 2016	Apr 2025	Wind
Whispering Willow Wind Farm - East	Interstate Power and Light Co	Iowa Falls, IA	425 GWh	Nov 2009	Dec 2024	Wind
Gaylord Container Bogalusa	Temple-Inland Corp	Bogalusa, LA	418 GWh	May 1979	Apr 2025	Black Liquor : 55.1% Wood/Wood Waste Solids : 37.3% Natural Gas : 7.6%
Big Cypress Solar, LLC	Big Cypress Solar, LLC	Crawfordsville, AR	417 GWh	Nov 2023	Apr 2025	Solar
Cannelton Hydroelectric Plant	American Mun Power-Ohio, Inc	Hawesville, KY	416 GWh	Dec 2015	Dec 2024	Water
Morning Light Wind Farm	MidAmerican Energy Co	Adair, IA	413 GWh	Sep 2012	Dec 2024	Wind
Prairie Rose Wind Farm	Enel Green Power NA, Inc.	Hardwick, MN	408 GWh	Nov 2012	Apr 2025	Wind
WestRock (TX)	WestRock (TX)	Evadale, TX	407 GWh	May 1954	Dec 2023	Black Liquor : 57.4% Wood/Wood Waste Solids : 24.4% Natural Gas : 18.1%
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%
New Frontier Wind	Meadowlark Wind I LLC	Ruso, ND	402 GWh	Nov 2018	Apr 2025	Wind
Quilt Block Wind Farm LLC	Quilt Block Wind Farm LLC	Darlington, WI	401 GWh	Aug 2017	Apr 2025	Wind
Dam 2	Arkansas Electric Coop Corp	Dumas, AR	401 GWh	May 1999	Dec 2024	Water
Indiana Crossroads Wind Farm II	Indiana Crossroads Wind Farm II LLC	Wolcott, IN	400 GWh	Nov 2024	Apr 2025	Wind
Pegasus Wind	Pegasus Wind, LLC	Reese, MI	398 GWh	Nov 2019	Apr 2025	Wind
Vienna Wind Farm	MidAmerican Energy Co	Marshalltown, IA	398 GWh	Oct 2012	Dec 2024	Wind
Markland	Duke Energy Indiana, LLC	Florence, IN	395 GWh	Dec 1966	Dec 2023	Water
Northern Wind	Northern States Power Co - Minnesota	Lake Wilson, MN	390 GWh	Dec 2022	Apr 2025	Wind
Glacier Hills	Wisconsin Electric Power Co	Cambria, WI	384 GWh	Nov 2011	Apr 2025	Wind
Crooked Lake Solar, LLC	Crooked Lake Solar, LLC	Blytheville, AR	382 GWh	Apr 2024	Apr 2025	Solar
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
Double Back Diamond	Double Back Diamond Solar Power, LLC	Virden, IL	381 GWh	Oct 2024	Apr 2025	Solar
Grand Meadow	Northern States Power Co - Minnesota	Dexter, MN	380 GWh	Nov 2008	Dec 2024	Wind
Trimont Area Wind Farm	Avangrid Power LLC	Trimont, MN	379 GWh	Oct 2005	Dec 2024	Wind
Victory Wind Farm	MidAmerican Energy Co	Westside, IA	378 GWh	Nov 2006	Dec 2024	Wind
Indiana Crossroads Solar Park	Meadow Lake Solar Park	Reynolds, IN	377 GWh	May 2023	Apr 2025	Solar
White Oak Energy LLC	White Oak Energy LLC	Carlock, IL	376 GWh	May 2011	Dec 2024	Wind
F.D. Kuester Generating Station	Upper Michigan Energy Resources Company	Negaunee, MI	375 GWh	Feb 2019	Dec 2024	Natural Gas
Wabash Valley Power IGCC	Wabash Valley Power Assn, Inc	Terre Haute, IN	374 GWh	Nov 1953	Apr 2025	Natural Gas
Cavalry Solar Hybrid	Cavalry Energy Center LLC	Monon, IN	372 GWh	Apr 2024	Apr 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%
Formosa Plastics	Formosa Plastics Corp	Baton Rouge, LA	370 GWh	Apr 1985	Dec 2023	Natural Gas
Tuscola Bay Wind	Tuscola Bay Wind LLC	Reese, MI	369 GWh	Nov 2012	Apr 2025	Wind
Gratiot Farms Wind Project	Consumers Energy Co - (MI)	Carson City, MI	368 GWh	Nov 2020	Apr 2025	Wind
RockGen Energy Center	Dairyland Power Coop	Cambridge, WI	366 GWh	May 2001	Apr 2025	Natural Gas : 99.2% Distillate Fuel Oil : 0.8%
Crescent Wind Park	Consumers Energy Co - (MI)	Hillsdale, MI	365 GWh	Jan 2021	Apr 2025	Wind
Prairie Wolf Solar LLC	National Grid Renewables	Ashmore Township, IL	364 GWh	Oct 2021	Apr 2025	Solar
Stoneray Power Partners, LLC	EDF Renewable Asset Holdings, Inc.	Woodstock, MN	363 GWh	Jan 2019	Apr 2025	Wind
Barton Windpower LLC	Avangrid Power LLC	Kensett, IA	361 GWh	May 2009	Dec 2024	Wind
Whiting Refinery	BP PLC	Whiting, IN	360 GWh	Dec 1947	Dec 2024	Other Gas : 81.0% Natural Gas : 19.0%
Benton County Wind Farm	Orion Energy Group LLC	Earl Park, IN	358 GWh	Apr 2008	Dec 2024	Wind
Hardy Hills Solar Energy LLC	Hardy Hills Solar LLC	Frankfort, IN	357 GWh	Feb 2024	Apr 2025	Solar
Settlers Trail Wind Farm LLC	Big Sky Wind, LLC	Sheldon, IL	354 GWh	Sep 2011	Dec 2024	Wind
Garden Wind LLC	Garden Wind LLC	Zearing, IA	352 GWh	Nov 2009	Apr 2025	Wind
Newport Solar Project	Newport Solar, LLC	Newport, AR	351 GWh	Sep 2023	Apr 2025	Solar
Calhoun Solar	Invenergy Services LLC	Battle Creek, MI	351 GWh	Nov 2022	Apr 2025	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	761.1 GWh	4
#27	Associated Electric Cooperative, Inc.	23.0 TWh	47
#13	Duke Energy Carolinas	111.8 TWh	565
#52	Duke Energy Progress West	4.1 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	33.8 TWh	25
#1	PJM Interconnection, LLC	858.2 TWh	2,429
#20	Public Service Company of Colorado	48.4 TWh	208
#5	Southwest Power Pool	296.3 TWh	830
#51	Southwestern Power Administration	4.1 TWh	33
#8	Tennessee Valley Authority	158.7 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	858.2 TWh	2,429
#2	Midcontinent Independent System Operator, Inc.	643.6 TWh	2,788
#3	Electric Reliability Council of Texas, Inc.	476.8 TWh	1,305
#5	Southwest Power Pool	296.3 TWh	830
#6	Southern Company Services, Inc. - Trans	251.6 TWh	417
#7	California Independent System Operator	190.5 TWh	2,051
#8	Tennessee Valley Authority	158.7 TWh	204
#10	Florida Power & Light Co.	149.5 TWh	187
#12	New York Independent System Operator	130.5 TWh	1,191
#13	Duke Energy Carolinas	111.8 TWh	565