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	Jul 2026
Annual Generation	669.4 TWh
Power Plants	3,038
Utilities	1,345
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% Coal \| 26.5% Wind \| 14.9% Nuclear \| 13.9% Solar \| 5.7% Water \| 1.4% Other Fuel \| 0.6%

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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
Sumpter	Wolverine Power Supply Coop	Belleville, MI	291 GWh	Jun 2002	Dec 2025	Natural Gas
River Fork Solar, LLC	River Fork Solar, LLC	Albion, MI	291 GWh	Sep 2024	May 2026	Solar
Gibson Solar	Gibson Solar, LLC	Princeton, IN	294 GWh	Jul 2025	May 2026	Solar
Tuscola Wind II LLC	Tuscola Wind II LLC	Reese, MI	295 GWh	Oct 2013	May 2026	Wind
Paris Solar	Wisconsin Electric Power Co	Union Grove, WI	296 GWh	Nov 2024	May 2026	Solar
Quartz Solar, LLC	RWE Clean Energy	Wynne, AR	299 GWh	Feb 2025	May 2026	Solar
Bennington Wind	Minonk Stewardship Wind LLC	Minonk, IL	300 GWh	Sep 2021	May 2026	Wind
Combined Locks Energy Center	McKinley Paper	Combined Locks, WI	302 GWh	Apr 2002	Dec 2025	Natural Gas
Franklin County Wind Farm	Interstate Power and Light Co	Iowa Falls, IA	302 GWh	Nov 2012	Dec 2025	Wind
Prairie Star Wind Farm	High Prairie Wind Farm II LLC	Grand Meadow, MN	303 GWh	Nov 2007	Dec 2025	Wind
Wellsburg Wind Project	MidAmerican Energy Co	Wellsburg, IA	305 GWh	Nov 2014	Dec 2025	Wind
Black Oak Wind Farm	Black Oak Wind, LLC	Sauk Centre, MN	305 GWh	Nov 2016	May 2026	Wind
West Campus Cogeneration Facility	Madison Gas & Electric Co	Madison, WI	305 GWh	Mar 2005	Dec 2025	Natural Gas
Wolf Run Solar	Wolf Run Solar LLC	Chapin, IL	305 GWh	Oct 2024	May 2026	Solar
Appleseed Solar	Appleseed Solar, LLC	Logansport, IN	306 GWh	Jul 2025	May 2026	Solar
Cass County Renewable Energy Center	Union Electric Co - (MO)	Beardstown, IL	306 GWh	Nov 2024	May 2026	Solar
Georgetown	AES Indiana	Indianapolis, IN	307 GWh	May 2000	Dec 2025	Natural Gas
Big River Solar	Big River Solar, LLC	Norris City, IL	313 GWh	Jul 2022	May 2026	Solar
Washington Parish Energy Center	Entergy Louisiana LLC	Bogalusa, LA	315 GWh	Oct 2020	May 2026	Natural Gas
Unbridled Solar	Geronimo Power	Robards, KY	316 GWh	Feb 2025	May 2026	Solar
West Memphis Solar Station	Entergy Arkansas LLC	Crawfordsville, AR	316 GWh	Nov 2024	May 2026	Solar
Umbriel Solar	Umbriel Solar, LLC	Livington, TX	317 GWh	Sep 2023	May 2026	Solar
Eldorado Solar I	Sol Systems	Eldorado, IL	317 GWh	Dec 2024	May 2026	Solar
Rosewater Wind Farm	Rosewater Wind Farm LLC	Chalmers, IN	317 GWh	Nov 2020	May 2026	Wind
Billerud Quinnesec Mill	Billerud Quinnesec Mill	Norway, MI	318 GWh	Sep 1985	Dec 2025	Black Liquor : 64.2% Wood/Wood Waste Solids : 32.7% Natural Gas : 3.1%
Waterford 1 & 2	Entergy Louisiana LLC	Killona, LA	319 GWh	Jun 1975	Dec 2024	Natural Gas : 99.5% Distillate Fuel Oil : 0.5%
Blue Sky Green Field Wind Project	Wisconsin Electric Power Co	Fond du Lac, WI	320 GWh	Apr 2008	May 2026	Wind
Blue Bird Solar, LLC	Blue Bird Solar, LLC	Warrenton, MO	320 GWh	Nov 2024	May 2026	Solar
Settlers Trail Wind Farm LLC	RWE Clean Energy	Sheldon, IL	320 GWh	Sep 2011	Dec 2025	Wind
Sac County Wind, LLC	Sac County Wind	Sac City, IA	321 GWh	Nov 2021	May 2026	Wind
Ivester Wind Farm	MidAmerican Energy Co	Wellsburg, IA	323 GWh	Nov 2018	May 2026	Wind
Whiting Refinery	BP PLC	Whiting, IN	328 GWh	Dec 1947	Dec 2025	Other Gas : 87.1% Natural Gas : 12.9%
Sebree Solar, LLC	Sebree Solar, LLC	Robards, KY	329 GWh	Aug 2025	May 2026	Solar
Michigan Wind 2	Michigan Wind 2, LLC	Minden City, MI	329 GWh	Nov 2011	Dec 2025	Wind
Twin Lakes Solar LLC	Twin Lakes Solar LLC	Monticello, IN	332 GWh	Nov 2024	May 2026	Solar
Driver Solar	Entergy Arkansas LLC	Osceola, AR	333 GWh	Oct 2024	May 2026	Solar
Gratiot Farms Wind Project	Consumers Energy Co - (MI)	Carson City, MI	333 GWh	Nov 2020	May 2026	Wind
Boise Cascade International Falls	Boise White Paper LLC	International Falls, MN	333 GWh	Dec 1926	May 2026	Black Liquor : 63.4% Natural Gas : 22.5% Wood/Wood Waste Solids : 12.8% Sludge Waste : 1.3%
Mower County Wind Energy Center	Northern States Power Co - Minnesota	Grand Meadow, MN	334 GWh	Nov 2006	Dec 2025	Wind
Bent Tree Wind Farm Phase 1	Wisconsin Power & Light Co	Hartland, MN	334 GWh	Jan 2011	Dec 2025	Wind
Bishop Hill II Wind Farm	Bishop Hill Energy II, LLC	Cambridge, IL	334 GWh	Sep 2012	Dec 2025	Wind
Shenandoah Hills Wind Farm	MidAmerican Energy Co	Blanchard, IA	336 GWh	Nov 2025	May 2026	Wind
Lake Catherine	Entergy Arkansas LLC	Jones Mill, AR	336 GWh	Mar 1970	Dec 2025	Natural Gas
Glacier Hills	Wisconsin Electric Power Co	Cambria, WI	336 GWh	Nov 2011	May 2026	Wind
MinnDakota Wind LLC	Avangrid Power LLC	Ivanhoe, MN	337 GWh	Dec 2007	Dec 2025	Wind
Hoopeston Wind LLC	Hoopeston Wind LLC	Rossville, IL	338 GWh	Feb 2015	Dec 2025	Wind
Kentucky Mills	Domtar Paper Company LLC	Hawesville, KY	338 GWh	May 2001	Dec 2025	Black Liquor : 75.4% Wood/Wood Waste Solids : 23.7% Natural Gas : 0.8%
Flat Fork Solar	Flat Fork Solar, LLC	Wheatley, AR	339 GWh	Jul 2025	May 2026	Solar
Contrail Wind Farm	MidAmerican Energy Co	Bedford, IA	341 GWh	Nov 2020	May 2026	Wind
Garden Wind LLC	Garden Wind LLC	Zearing, IA	343 GWh	Nov 2009	May 2026	Wind
Benton County Wind Farm	Orion Energy Group LLC	Earl Park, IN	343 GWh	Apr 2008	Dec 2025	Wind
Northern Wind	Northern States Power Co - Minnesota	Lake Wilson, MN	343 GWh	Dec 2022	May 2026	Wind
Rugby Wind Power Project	Avangrid Power LLC	Barton, ND	348 GWh	Nov 2009	Dec 2025	Wind
TES Filer City Station	TES Filer City Station LP	Filer City, MI	349 GWh	Apr 1990	May 2026	Bituminous Coal : 66.5% Natural Gas : 20.7% Wood/Wood Waste Solids : 12.7%
Trimont Area Wind Farm	Avangrid Power LLC	Trimont, MN	350 GWh	Oct 2005	Dec 2025	Wind
Newport Solar Project	Newport Solar, LLC	Newport, AR	354 GWh	Sep 2023	May 2026	Solar
Tuscola Bay Wind	Tuscola Bay Wind LLC	Reese, MI	358 GWh	Nov 2012	May 2026	Wind
Crescent Wind Park	Consumers Energy Co - (MI)	Hillsdale, MI	359 GWh	Jan 2021	May 2026	Wind
Hardy Hills Solar Energy LLC	Hardy Hills Solar LLC	Frankfort, IN	360 GWh	Feb 2024	May 2026	Solar
Cavalry Solar Hybrid	Cavalry Energy Center LLC	Monon, IN	360 GWh	Apr 2024	May 2026	Solar
Salt Creek Wind	Salt Creek Wind, LLC	Traer, IA	360 GWh	Nov 2025	May 2026	Wind
Flint Hills Resources Pine Bend, LLC	Flint Hills Resources Pine Bend, LLC	Rosemount, MN	362 GWh	Apr 2019	Dec 2025	Natural Gas : 78.8% Solar : 21.2%
Stoneray Power Partners, LLC	EDF Renewable Asset Holdings, Inc.	Woodstock, MN	363 GWh	Jan 2019	May 2026	Wind
Ashtabula Wind II LLC	Ashtabula Wind II LLC	Luverne, ND	364 GWh	Sep 2009	Dec 2025	Wind
Barton Windpower LLC	Avangrid Power LLC	Kensett, IA	365 GWh	May 2009	Dec 2025	Wind
Oliver Wind III, LLC	Oliver Wind III, LLC	Mandan, ND	366 GWh	Dec 2016	May 2026	Wind
Darien Solar	Wisconsin Electric Power Co	Darien, WI	366 GWh	Feb 2025	May 2026	Solar
F.D. Kuester Generating Station	Upper Michigan Energy Resources Company	Negaunee, MI	368 GWh	Feb 2019	Dec 2025	Natural Gas
New Frontier Wind	Meadowlark Wind I LLC	Ruso, ND	369 GWh	Nov 2018	May 2026	Wind
Calhoun Solar	Invenergy Services LLC	Battle Creek, MI	369 GWh	Nov 2022	May 2026	Solar
Quilt Block Wind Farm LLC	Quilt Block Wind Farm LLC	Darlington, WI	371 GWh	Aug 2017	May 2026	Wind
Pocahontas Prairie Wind Farm	MidAmerican Energy Co	Pomeroy, IA	374 GWh	Jan 2012	Dec 2025	Wind
Badger Wind, LLC	Badger Wind , LLC	Northwest McIntosh, ND	374 GWh	-	May 2026	Wind
Grant County	Wisconsin Power & Light Co	Town of Potosi, WI	375 GWh	Apr 2024	May 2026	Solar
Prairie Wolf Solar LLC	Geronimo Power	North Ashmore, IL	376 GWh	Oct 2021	May 2026	Solar
Valley (WI)	Wisconsin Electric Power Co	Milwaukee, WI	376 GWh	May 1968	May 2026	Natural Gas
Pegasus Wind	Pegasus Wind, LLC	Reese, MI	378 GWh	Nov 2019	May 2026	Wind
Grand Meadow	Northern States Power Co - Minnesota	Dexter, MN	379 GWh	Nov 2008	Dec 2025	Wind
Speedway Solar, LLC	Speedway Solar, LLC	Morrison Town, IN	379 GWh	May 2025	May 2026	Solar
Pine River Wind Park	DTE Electric Company	Shepherd, MI	380 GWh	Feb 2019	May 2026	Wind
Victory Wind Farm	MidAmerican Energy Co	Westside, IA	384 GWh	Nov 2006	Dec 2025	Wind
Baldwin Wind LLC	Baldwin Wind LLC	Wilton, ND	384 GWh	Nov 2010	Dec 2025	Wind
Indiana Crossroads Solar Park	Meadow Lake Solar Park	Reynolds, IN	384 GWh	May 2023	May 2026	Solar
Dam 2	Arkansas Electric Coop Corp	Dumas, AR	385 GWh	May 1999	Dec 2025	Water
Fenton Wind Farm	EDF Renewable Asset Holdings, Inc.	Chandler, MN	387 GWh	Aug 2007	May 2026	Wind
Crooked Lake Solar, LLC	Crooked Lake Solar, LLC	Blytheville, AR	391 GWh	Apr 2024	May 2026	Solar
Lakefield Wind Project LLC	EDF Renewable Asset Holdings, Inc.	Lakefield, MN	392 GWh	Sep 2011	May 2026	Wind
Green River Solar	Green River Solar, LLC	Guston, KY	398 GWh	Apr 2025	May 2026	Solar
White Oak Energy LLC	White Oak Energy LLC	Carlock, IL	400 GWh	May 2011	Dec 2025	Wind
Carpenter Wind Farm LLC	Carpenter Wind Farm LLC	Remington, IN	400 GWh	Nov 2025	May 2026	Wind
Crossover Wind	Crossover Wind, LLC	Wynne, AR	402 GWh	May 2025	May 2026	Wind
Audrain Generating Station	Union Electric Co - (MO)	Vandalia, MO	403 GWh	Jan 2001	Dec 2025	Natural Gas
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%
Whispering Willow Wind Farm - East	Interstate Power and Light Co	Iowa Falls, IA	405 GWh	Nov 2009	Dec 2025	Wind
Posey Solar	Southern Indiana Gas & Elec Co	Mount Vernon, IN	405 GWh	Apr 2025	May 2026	Solar
Morning Light Wind Farm	MidAmerican Energy Co	Adair, IA	407 GWh	Sep 2012	Dec 2025	Wind
Primient	Primary Products Ingredients Americas, LLC d/b/a Primient	Lafayette, IN	408 GWh	May 2021	Dec 2025	Natural Gas
Tatanka Wind Power LLC	Acciona Wind Energy USA LLC	Ashley, ND	411 GWh	Dec 2007	May 2026	Wind
Oak Ridge Solar	AES Clean Energy	Oak Ridge, LA	413 GWh	Nov 2023	May 2026	Solar
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%

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	442.5 GWh	4
#26	Associated Electric Cooperative, Inc.	23.4 TWh	47
#13	Duke Energy Carolinas	112.6 TWh	577
#50	Duke Energy Progress West	4.5 TWh	15
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	33.9 TWh	25
#1	PJM Interconnection, LLC	882.8 TWh	2,652
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#5	Southwest Power Pool	306.8 TWh	856
#53	Southwestern Power Administration	4.1 TWh	34
#9	Tennessee Valley Authority	163.4 TWh	207

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	882.8 TWh	2,652
#2	Midcontinent Independent System Operator, Inc.	669.4 TWh	3,038
#3	Electric Reliability Council of Texas, Inc.	494.1 TWh	1,471
#5	Southwest Power Pool	306.8 TWh	856
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#7	California Independent System Operator	169.4 TWh	2,135
#9	Tennessee Valley Authority	163.4 TWh	207
#10	Florida Power & Light Co.	152.2 TWh	187
#12	New York Independent System Operator	134.3 TWh	1,299
#13	Duke Energy Carolinas	112.6 TWh	577