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
Geismar Cogen	Air Liquide Large Industries U S LP	Geismar, LA	586 GWh	Dec 1999	Dec 2024	Natural Gas
Walnut Wind Farm	MidAmerican Energy Co	Walnut, IA	584 GWh	Nov 2008	Dec 2024	Wind
FPL Energy Crystal Lake Wind LLC	FPL Energy Crystal Lake Wind LLC	Britt, IA	573 GWh	Nov 2008	Feb 2026	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
Sugar Creek Wind One LLC	Sugar Creek Wind One LLC	TBD, IL	571 GWh	Oct 2020	Feb 2026	Wind
Echo Wind Park	DTE Electric Company	Elkton, MI	569 GWh	Dec 2013	Feb 2026	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
Tatanka Ridge	Tatanka Ridge LLC	Toronto, SD	561 GWh	Dec 2020	Feb 2026	Wind
Oxbow Solar 1	Lightsource Renewable Energy Asset Management, LLC	New Roads, LA	560 GWh	Jun 2024	Feb 2026	Solar
English Farms	Interstate Power and Light Co	Montezuma, IA	560 GWh	Feb 2019	Feb 2026	Wind
Merricourt Wind Energy Center	Otter Tail Power Co	Kulm, ND	555 GWh	Nov 2020	Feb 2026	Wind
Adair Wind Farm	MidAmerican Energy Co	Adair, IA	555 GWh	Nov 2008	Dec 2024	Wind
Moraine Sands Wind Power	Moraine Sands Wind Power, LLC	Mason City, IL	553 GWh	Nov 2023	Feb 2026	Wind
SABIC Innovative Plastics Mt. Vernon	SABIC IP Mt. Vernon, LLC	Mount Vernon, IN	551 GWh	May 1996	Feb 2026	Natural Gas
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	Feb 2026	Wind
Kossuth	Wisconsin Power & Light Co	Lu Verne, IA	524 GWh	Sep 2020	Feb 2026	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
RockGen Energy Center	Dairyland Power Coop	Cambridge, WI	518 GWh	May 2001	Feb 2026	Natural Gas : 97.8% Distillate Fuel Oil : 2.2%
Cardinal Point Wind	Cardinal Point LLC	Sciota, IL	514 GWh	Feb 2020	Feb 2026	Wind
Geismar	BASF Corporation	Geismar, LA	514 GWh	Jun 1985	Dec 2024	Natural Gas : 63.1% Other Gas : 36.9%
Delta Wind Farm (MS)	AES Clean Energy	Dundee, MS	512 GWh	Mar 2024	Feb 2026	Wind
Dunns Bridge I Solar	Dunns Bridge Solar Center LLC	Wheatfield, IN	507 GWh	May 2023	Feb 2026	Solar
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
Maple Flats	Invenergy Services LLC	Louisville, IL	493 GWh	Oct 2024	Feb 2026	Solar
Meridian Wind Park	DTE Electric Company	Merrill, MI	492 GWh	Mar 2023	Feb 2026	Wind
Richland (IA)	Interstate Power and Light Co	Odebolt, IA	483 GWh	Aug 2020	Feb 2026	Wind
Langdon Renewables, LLC	FPL Energy Langdon Wind LLC	Langdon, ND	482 GWh	Nov 2007	Dec 2024	Wind
Astoria Station	Otter Tail Power Co	Astoria, SD	478 GWh	Mar 2021	Feb 2026	Natural Gas
Deerfield Wind Energy, LLC	Deerfield Wind Energy, LLC	Kinde, MI	478 GWh	Jan 2017	Feb 2026	Wind
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
Walleye Wind	Walleye Wind, LLC	Beaver Creek, MN	468 GWh	Nov 2022	Feb 2026	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
Heartland Farms	Consumers Energy Co - (MI)	Middleton, MI	464 GWh	Mar 2024	Feb 2026	Wind
Laurel Wind Farm	MidAmerican Energy Co	Laurel, IA	463 GWh	Nov 2011	Dec 2024	Wind
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%
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%
Ford County Wind Farm LLC	Ford Ridge	Ford County, IL	460 GWh	Feb 2022	Feb 2026	Wind
Pioneer Trail Wind Farm, LLC	Big Sky Wind, LLC	Paxton, IL	459 GWh	Nov 2011	Dec 2024	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%
Polaris Wind Park	DTE Electric Company	North Star Township, MI	455 GWh	Apr 2020	Feb 2026	Wind
Prairie Rose Wind Farm	Enel Green Power NA, Inc.	Hardwick, MN	453 GWh	Nov 2012	Feb 2026	Wind
Buffalo Ridge II LLC	Avangrid Power LLC	Elkton, SD	442 GWh	Nov 2010	Feb 2026	Wind
Lake Benton II	Northern States Power Co - Minnesota	Ruthton, MN	438 GWh	May 1999	Dec 2024	Wind
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%
Lansing BWL REO Town Plant	Lansing Board of Water and Light	Lansing, MI	437 GWh	Jun 2013	Dec 2024	Natural Gas
Tatanka Wind Power LLC	Acciona Wind Energy USA LLC	Ashley, ND	436 GWh	Dec 2007	Feb 2026	Wind
Gerald Andrus	Entergy Mississippi LLC	Greenville, MS	435 GWh	Dec 1974	Aug 2024	Natural Gas : 99.9%
Buffalo Ridge Wind	Buffalo Ridge Wind, LLC	Lake Benton, MN	434 GWh	Nov 2022	Feb 2026	Wind
Long Lake Solar, LLC	Long Lake Solar, LLC	West Helena, AR	433 GWh	-	Feb 2026	Solar
Big Cypress Solar, LLC	Big Cypress Solar, LLC	Crawfordsville, AR	429 GWh	Nov 2023	Feb 2026	Solar
Silver Creek	Cooperative Energy	Prentiss, MS	428 GWh	May 2003	Dec 2024	Natural Gas
Glen Ullin Energy Center	ALLETE Clean Energy	Glen Ullin, ND	426 GWh	Nov 2019	Feb 2026	Wind
Whispering Willow Wind Farm - East	Interstate Power and Light Co	Iowa Falls, IA	425 GWh	Nov 2009	Dec 2024	Wind
Bishop Hill III	Invenergy Services LLC	Cambridge, IL	423 GWh	May 2018	Feb 2026	Wind
Pearl River Solar Park LLC	Pearl River Solar Park, LLC	Morton, MS	420 GWh	Jun 2024	Feb 2026	Solar
Fairbanks Solar Project	Fairbanks Solar Energy Center LLC	Fairbanks, IN	420 GWh	-	Feb 2026	Solar
Heartland Divide Wind Project, LLC	Heartland Divide Wind Project, LLC	Melville, IA	417 GWh	Nov 2018	Feb 2026	Wind
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%
Huck Finn Renewable Energy Center	Union Electric Co - (MO)	Vandalia, MO	415 GWh	Nov 2024	Feb 2026	Solar
Heat Recovery Coke Facility	Cokenergy Inc	East Chicago, IN	414 GWh	Mar 1998	Feb 2026	Waste Heat
Morning Light Wind Farm	MidAmerican Energy Co	Adair, IA	413 GWh	Sep 2012	Dec 2024	Wind
Oak Ridge Solar	AES Clean Energy	Oak Ridge, LA	407 GWh	Nov 2023	Feb 2026	Solar
Sherco Solar I	Northern States Power Co - Minnesota	Clear Lake, MN	406 GWh	Sep 2024	Feb 2026	Solar
Primient	Primary Products Ingredients Americas, LLC d/b/a Primient	Lafayette, IN	406 GWh	May 2021	Dec 2024	Natural Gas
Wabash Valley Power IGCC	Wabash Valley Power Assn, Inc	Terre Haute, IN	406 GWh	Nov 1953	Feb 2026	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	395 GWh	Apr 2024	Feb 2026	Solar
Washington Parish Energy Center	Entergy Louisiana LLC	Bogalusa, LA	392 GWh	Oct 2020	Feb 2026	Natural Gas
Pegasus Wind	Pegasus Wind, LLC	Reese, MI	383 GWh	Nov 2019	Feb 2026	Wind
Lakefield Wind Project LLC	EDF Renewable Asset Holdings, Inc.	Lakefield, MN	383 GWh	Sep 2011	Feb 2026	Wind
Indiana Crossroads Solar Park	Meadow Lake Solar Park	Reynolds, IN	382 GWh	May 2023	Feb 2026	Solar
Fenton Wind Farm	EDF Renewable Asset Holdings, Inc.	Chandler, MN	382 GWh	Aug 2007	Feb 2026	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
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
Grant County	Wisconsin Power & Light Co	Town of Potosi, WI	378 GWh	Apr 2024	Feb 2026	Solar
Victory Wind Farm	MidAmerican Energy Co	Westside, IA	378 GWh	Nov 2006	Dec 2024	Wind
Prairie Wolf Solar LLC	National Grid Renewables	Ashmore Township, IL	378 GWh	Oct 2021	Feb 2026	Solar
Pine River Wind Park	DTE Electric Company	Shepherd, MI	377 GWh	Feb 2019	Feb 2026	Wind
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
Quilt Block Wind Farm LLC	Quilt Block Wind Farm LLC	Darlington, WI	371 GWh	Aug 2017	Feb 2026	Wind
Hoopeston Wind LLC	Hoopeston Wind LLC	Rossville, IL	371 GWh	Feb 2015	Dec 2024	Wind
Smithland Hydroelectric Plant	American Mun Power-Ohio, Inc	Smithland, KY	371 GWh	Jun 2017	Feb 2026	Water
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%
Crescent Wind Park	Consumers Energy Co - (MI)	Hillsdale, MI	368 GWh	Jan 2021	Feb 2026	Wind
New Frontier Wind	Meadowlark Wind I LLC	Ruso, ND	368 GWh	Nov 2018	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