Midcontinent Independent System Operator, Inc.

Balancing Authority Summary Information

Midcontinent Independent System Operator, Inc. is ranked #2 out of 64 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	Oct 2026
Annual Generation	677.7 TWh
Power Plants	3,095
Utilities	1,372
Ranked #2 out of 64 in terms of net annual generation
Ranked #2 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 37.1% Coal \| 26.2% Wind \| 15% Nuclear \| 13.8% Solar \| 6.1% 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
Bison 4 Wind Energy Center	ALLETE, Inc.	New Salem, ND	573 GWh	Dec 2014	Dec 2025	Wind
JCO Oxides Olefins Plant	Indorama Ventures	Port Neeches, TX	569 GWh	Aug 1992	Dec 2025	Natural Gas
Thunder Spirit Wind, LLC	Montana-Dakota Utilities Co	Hettinger, ND	568 GWh	Nov 2015	Dec 2025	Wind
Gerald Andrus	Entergy Mississippi LLC	Greenville, MS	567 GWh	Dec 1974	Nov 2025	Natural Gas : 99.9%
FPL Energy Story Wind LLC	FPL Energy Story Wind LLC	Zearing, IA	566 GWh	Nov 2008	Jul 2026	Wind
Merricourt Wind Energy Center	Otter Tail Power Co	Kulm, ND	565 GWh	Nov 2020	Jul 2026	Wind
Echo Wind Park	DTE Electric Company	Elkton, MI	564 GWh	Dec 2013	Jul 2026	Wind
Walnut Wind Farm	MidAmerican Energy Co	Walnut, IA	558 GWh	Nov 2008	Dec 2025	Wind
Carroll Wind Farm	MidAmerican Energy Co	Carroll, IA	557 GWh	Nov 2008	Dec 2025	Wind
ExxonMobil Baton Rouge Turbine Generator	Exxon Mobil Corp	Baton Rouge, LA	552 GWh	Apr 1990	Dec 2025	Natural Gas
Adair Wind Farm	MidAmerican Energy Co	Adair, IA	551 GWh	Nov 2008	Dec 2025	Wind
LSP-Cottage Grove LP	Cottage Grove Operating Services LLC	Cottage Grove, MN	549 GWh	Sep 1997	Dec 2025	Natural Gas
Intrepid	MidAmerican Energy Co	Schaller, IA	546 GWh	Nov 2004	Dec 2025	Wind
Kossuth	Wisconsin Power & Light Co	Lu Verne, IA	536 GWh	Sep 2020	Jul 2026	Wind
Delta Wind Farm (MS)	AES Clean Energy	Dundee, MS	531 GWh	Mar 2024	Jul 2026	Wind
Fairbanks Solar Project	Fairbanks Solar Energy Center LLC	Fairbanks, IN	529 GWh	Apr 2025	Jul 2026	Solar
Geismar Cogen	Air Liquide Large Industries U S LP	Geismar, LA	528 GWh	Dec 1999	Dec 2025	Natural Gas
Cardinal Point Wind	Cardinal Point LLC	Sciota, IL	525 GWh	Feb 2020	Jul 2026	Wind
Badger Wind, LLC	Badger Wind , LLC	Northwest McIntosh, ND	523 GWh	-	Jul 2026	Wind
Tatanka Ridge	Tatanka Ridge LLC	Toronto, SD	522 GWh	Dec 2020	Jul 2026	Wind
Maple Flats	Invenergy Services LLC	Louisville, IL	519 GWh	Oct 2024	Jul 2026	Solar
Georgia-Pacific Monticello Paper	Georgia-Pacific Monticello LLC	Monticello, MS	517 GWh	May 1968	Dec 2025	Black Liquor : 49.5% Natural Gas : 33.6% Wood/Wood Waste Solids : 16.9%
Plant 31 Paper Mill	Graphic Packaging International	West Monroe, LA	515 GWh	Dec 1963	Dec 2025	Natural Gas : 62.4% Black Liquor : 25.3% Wood/Wood Waste Solids : 12.3%
Border Winds Wind Farm	Northern States Power Co - Minnesota	Rolla, ND	513 GWh	Jul 2015	Sep 2025	Wind
Oxbow Solar 1	Lightsource Renewable Energy Asset Management, LLC	New Roads, LA	510 GWh	Jun 2024	Jul 2026	Solar
Buffalo Ridge II LLC	Avangrid Power LLC	Elkton, SD	506 GWh	Nov 2010	Jul 2026	Wind
Osage Dam	Union Electric Co - (MO)	Eldon, MO	499 GWh	Sep 1931	Dec 2025	Water
Astoria Station	Otter Tail Power Co	Astoria, SD	493 GWh	Mar 2021	Jul 2026	Natural Gas
Richland (IA)	Interstate Power and Light Co	Odebolt, IA	492 GWh	Aug 2020	Jul 2026	Wind
R D Green	Big Rivers Electric Corp	Robards, KY	491 GWh	Nov 1979	Jul 2026	Natural Gas
Long Lake Solar, LLC	Long Lake Solar, LLC	West Helena, AR	490 GWh	Mar 2025	Jul 2026	Solar
Langdon Renewables, LLC	FPL Energy Langdon Wind LLC	Langdon, ND	489 GWh	Nov 2007	Dec 2025	Wind
Westrock Hodge (LA)	Westrock (LA)	Hodge, LA	489 GWh	Nov 1952	Dec 2025	Black Liquor : 51.3% Natural Gas : 35.6% Wood/Wood Waste Solids : 13.1%
Alliant Energy Neenah	Wisconsin Power & Light Co	Neenah, WI	483 GWh	Apr 2000	Dec 2025	Natural Gas
Meridian Wind Park	DTE Electric Company	Merrill, MI	482 GWh	Mar 2023	Jul 2026	Wind
Deerfield Wind Energy, LLC	Deerfield Wind Energy, LLC	Kinde, MI	479 GWh	Jan 2017	Jul 2026	Wind
Lansing BWL REO Town Plant	Lansing Board of Water and Light	Lansing, MI	477 GWh	Jun 2013	Dec 2025	Natural Gas
Wabash Valley Power IGCC	Wabash Valley Power Assn, Inc	Terre Haute, IN	477 GWh	Nov 1953	Jul 2026	Natural Gas
Ford County Wind Farm LLC	Ford Ridge	Ford County, IL	473 GWh	Feb 2022	Jul 2026	Wind
Pioneer Trail Wind Farm, LLC	RWE Clean Energy	Paxton, IL	470 GWh	Nov 2011	Dec 2025	Wind
Laurel Wind Farm	MidAmerican Energy Co	Laurel, IA	470 GWh	Nov 2011	Dec 2025	Wind
Carpenter Wind Farm LLC	Carpenter Wind Farm LLC	Remington, IN	467 GWh	Nov 2025	Jul 2026	Wind
Blue Lake	Northern States Power Co - Minnesota	Shakopee, MN	465 GWh	Feb 1974	Nov 2025	Natural Gas : 99.9%
Heartland Farms	Consumers Energy Co - (MI)	Middleton, MI	464 GWh	Mar 2024	Jul 2026	Wind
Pleasant Valley Wind Farm	Northern States Power Co - Minnesota	Dexter, MN	464 GWh	Jul 2015	Dec 2025	Wind
Adams Wind	MidAmerican Energy Co	Lenox, IA	460 GWh	Sep 2015	Dec 2025	Wind
Sappi Cloquet Mill	Sappi Cloquet LLC	Cloquet, MN	460 GWh	Dec 1928	Jul 2026	Black Liquor : 62.4% Wood/Wood Waste Solids : 17.5% Natural Gas : 16.2% Water : 3.0% Distillate Fuel Oil : 0.5%
Polaris Wind Park	DTE Electric Company	North Star Township, MI	458 GWh	Apr 2020	Jul 2026	Wind
Walleye Wind	Walleye Wind, LLC	Beaver Creek, MN	457 GWh	Nov 2022	Jul 2026	Wind
Prairie Rose Wind Farm	Prairie Rose Wind Farm	Hardwick, MN	457 GWh	Nov 2012	Jul 2026	Wind
Escanaba Mill	Billerud Escanaba LLC	Escanaba, MI	455 GWh	Dec 1968	Jul 2026	Black Liquor : 46.5% Natural Gas : 31.7% Wood/Wood Waste Solids : 21.0% Residual Fuel Oil : 0.7%
Sheboygan Falls	Wisconsin Power & Light Co	Sheboygan, WI	452 GWh	May 2005	Dec 2025	Natural Gas
Sebree Solar I	Sebree Solar, LLC	Robards, KY	449 GWh	Aug 2025	Jul 2026	Solar
Granite City Works	United States Steel Granite City Works	Granite City, IL	448 GWh	May 2010	Jul 2026	Purchased Steam : 49.2% Natural Gas : 43.8% Blast Furnace Gas : 7.0%
Flat Fork Solar	Flat Fork Solar, LLC	Wheatley, AR	444 GWh	Jul 2025	Jul 2026	Solar
WestRock (TX)	WestRock (TX)	Evadale, TX	441 GWh	May 1954	Dec 2025	Black Liquor : 65.1% Natural Gas : 20.7% Wood/Wood Waste Solids : 14.2%
Lake Benton II	Northern States Power Co - Minnesota	Ruthton, MN	440 GWh	May 1999	Dec 2025	Wind
Sherco Solar I	Northern States Power Co - Minnesota	Clear Lake, MN	440 GWh	Sep 2024	Jul 2026	Solar
Huck Finn Renewable Energy Center	Union Electric Co - (MO)	Vandalia, MO	439 GWh	Nov 2024	Jul 2026	Solar
Morris Solar	AES Clean Energy	Kirksville, MO	435 GWh	May 2025	Jul 2026	Solar
Glen Ullin Energy Center	ALLETE Clean Energy	Glen Ullin, ND	433 GWh	Nov 2019	Jul 2026	Wind
Gaylord Container Bogalusa	Temple-Inland Corp	Bogalusa, LA	432 GWh	May 1979	Jul 2026	Black Liquor : 56.9% Wood/Wood Waste Solids : 36.6% Natural Gas : 6.5%
Buffalo Ridge Wind	Buffalo Ridge Wind, LLC	Lake Benton, MN	430 GWh	Nov 2022	Jul 2026	Wind
Bishop Hill III	Invenergy Services LLC	Cambridge, IL	430 GWh	May 2018	Jul 2026	Wind
Smithland Hydroelectric Plant	American Mun Power-Ohio, Inc	Smithland, KY	428 GWh	Jun 2017	Jul 2026	Water
Tatanka Wind Power LLC	Acciona Wind Energy USA LLC	Ashley, ND	427 GWh	Dec 2007	Jul 2026	Wind
Salt Creek Wind	Salt Creek Wind, LLC	Traer, IA	425 GWh	Nov 2025	Jul 2026	Wind
Heartland Divide Wind Project, LLC	Heartland Divide Wind Project, LLC	Melville, IA	424 GWh	Nov 2018	Jul 2026	Wind
Pearl River Solar Park LLC	Pearl River Solar Park, LLC	Morton, MS	423 GWh	Jun 2024	Jul 2026	Solar
Vermillion Energy Facility	Duke Energy Ohio Inc	Cayuga, IN	422 GWh	May 2000	Dec 2025	Natural Gas
Crossover Wind	Crossover Wind, LLC	Wynne, AR	422 GWh	May 2025	Jul 2026	Wind
Dunns Bridge I Solar	Dunns Bridge Solar Center LLC	Wheatfield, IN	421 GWh	May 2023	Jul 2026	Solar
Oak Ridge Solar	AES Clean Energy	Oak Ridge, LA	420 GWh	Nov 2023	Jul 2026	Solar
Cannelton Hydroelectric Plant	American Mun Power-Ohio, Inc	Hawesville, KY	417 GWh	Dec 2015	Dec 2025	Water
Formosa Plastics	Formosa Plastics Corp	Baton Rouge, LA	416 GWh	Apr 1985	Dec 2025	Natural Gas
Heat Recovery Coke Facility	Cokenergy Inc	East Chicago, IN	413 GWh	Mar 1998	Jul 2026	Waste Heat
Big Cypress Solar, LLC	Big Cypress Solar, LLC	Crawfordsville, AR	410 GWh	Nov 2023	Jul 2026	Solar
Primient	Primary Products Ingredients Americas, LLC d/b/a Primient	Lafayette, IN	408 GWh	May 2021	Dec 2025	Natural Gas
Morning Light Wind Farm	MidAmerican Energy Co	Adair, IA	407 GWh	Sep 2012	Dec 2025	Wind
Posey Solar	Southern Indiana Gas & Elec Co	Mount Vernon, IN	405 GWh	Apr 2025	Jul 2026	Solar
Shenandoah Hills Wind Farm	MidAmerican Energy Co	Blanchard, IA	405 GWh	Nov 2025	Jul 2026	Wind
Whispering Willow Wind Farm - East	Interstate Power and Light Co	Iowa Falls, IA	405 GWh	Nov 2009	Dec 2025	Wind
DeRidder Mill	Packaging Corporation of America	DeRidder, LA	405 GWh	Sep 1969	Dec 2025	Black Liquor : 44.6% Wood/Wood Waste Solids : 37.8% Natural Gas : 17.6%
Audrain Generating Station	Union Electric Co - (MO)	Vandalia, MO	403 GWh	Jan 2001	Dec 2025	Natural Gas
White Oak Energy LLC	White Oak Energy LLC	Carlock, IL	400 GWh	May 2011	Dec 2025	Wind
Lakefield Wind Project LLC	EDF Renewable Asset Holdings, Inc.	Lakefield, MN	396 GWh	Sep 2011	Jul 2026	Wind
Appleseed Solar	Appleseed Solar, LLC	Logansport, IN	394 GWh	Jul 2025	Jul 2026	Solar
Green River Solar	Green River Solar, LLC	Guston, KY	393 GWh	Apr 2025	Jul 2026	Solar
Speedway Solar, LLC	Speedway Solar, LLC	Morrison Town, IN	388 GWh	May 2025	Jul 2026	Solar
Crooked Lake Solar, LLC	Crooked Lake Solar, LLC	Blytheville, AR	388 GWh	Apr 2024	Jul 2026	Solar
Dam 2	Arkansas Electric Coop Corp	Dumas, AR	385 GWh	May 1999	Dec 2025	Water
Baldwin Wind LLC	Baldwin Wind LLC	Wilton, ND	384 GWh	Nov 2010	Dec 2025	Wind
Victory Wind Farm	MidAmerican Energy Co	Westside, IA	384 GWh	Nov 2006	Dec 2025	Wind
Oliver Wind III, LLC	Oliver Wind III, LLC	Mandan, ND	382 GWh	Dec 2016	Jul 2026	Wind
Pine River Wind Park	DTE Electric Company	Shepherd, MI	382 GWh	Feb 2019	Jul 2026	Wind
New Frontier Wind	Meadowlark Wind I LLC	Ruso, ND	381 GWh	Nov 2018	Jul 2026	Wind
Grant County	Wisconsin Power & Light Co	Town of Potosi, WI	380 GWh	Apr 2024	Jul 2026	Solar
Indiana Crossroads Solar Park	Meadow Lake Solar Park	Reynolds, IN	380 GWh	May 2023	Jul 2026	Solar
Fenton Wind Farm	EDF Renewable Asset Holdings, Inc.	Chandler, MN	380 GWh	Aug 2007	Jul 2026	Wind
Gibson Solar	Gibson Solar, LLC	Princeton, IN	380 GWh	Jul 2025	Jul 2026	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	433.0 GWh	4
#26	Associated Electric Cooperative, Inc.	22.9 TWh	47
#13	Duke Energy Carolinas	113.4 TWh	578
#50	Duke Energy Progress West	4.6 TWh	15
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.2 TWh	25
#1	PJM Interconnection, LLC	890.9 TWh	2,806
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#5	Southwest Power Pool	314.5 TWh	876
#53	Southwestern Power Administration	3.5 TWh	37
#9	Tennessee Valley Authority	166.2 TWh	209

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	890.9 TWh	2,806
#2	Midcontinent Independent System Operator, Inc.	677.7 TWh	3,095
#3	Electric Reliability Council of Texas, Inc.	506.3 TWh	1,487
#5	Southwest Power Pool	314.5 TWh	876
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#7	California Independent System Operator	168.7 TWh	2,170
#9	Tennessee Valley Authority	166.2 TWh	209
#10	Florida Power & Light Co.	153.0 TWh	188
#12	New York Independent System Operator	134.1 TWh	1,334
#13	Duke Energy Carolinas	113.4 TWh	578