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	Jun 2026
Annual Generation	669.3 TWh
Power Plants	2,831
Utilities	1,296
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 \| 27% Wind \| 14.9% Nuclear \| 13.8% Solar \| 5.3% 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
Barton Windpower LLC	Avangrid Power LLC	Kensett, IA	361 GWh	May 2009	Dec 2024	Wind
Crescent Wind Park	Consumers Energy Co - (MI)	Hillsdale, MI	361 GWh	Jan 2021	Mar 2026	Wind
Cavalry Solar Hybrid	Cavalry Energy Center LLC	Monon, IN	360 GWh	Apr 2024	Mar 2026	Solar
Whiting Refinery	BP PLC	Whiting, IN	360 GWh	Dec 1947	Dec 2024	Other Gas : 81.0% Natural Gas : 19.0%
Hardy Hills Solar Energy LLC	Hardy Hills Solar LLC	Frankfort, IN	359 GWh	Feb 2024	Mar 2026	Solar
Benton County Wind Farm	Orion Energy Group LLC	Earl Park, IN	358 GWh	Apr 2008	Dec 2024	Wind
Darien Solar	Wisconsin Electric Power Co	Darien, WI	357 GWh	-	Mar 2026	Solar
Tuscola Bay Wind	Tuscola Bay Wind LLC	Reese, MI	356 GWh	Nov 2012	Mar 2026	Wind
Newport Solar Project	Newport Solar, LLC	Newport, AR	355 GWh	Sep 2023	Mar 2026	Solar
Settlers Trail Wind Farm LLC	Big Sky Wind, LLC	Sheldon, IL	354 GWh	Sep 2011	Dec 2024	Wind
Calhoun Solar	Invenergy Services LLC	Battle Creek, MI	353 GWh	Nov 2022	Mar 2026	Solar
Green River Solar	Green River Solar, LLC	Guston, KY	350 GWh	-	Mar 2026	Solar
Posey Solar	Southern Indiana Gas & Elec Co	Mount Vernon, IN	349 GWh	-	Mar 2026	Solar
Glacier Hills	Wisconsin Electric Power Co	Cambria, WI	348 GWh	Nov 2011	Mar 2026	Wind
Northern Wind	Northern States Power Co - Minnesota	Lake Wilson, MN	345 GWh	Dec 2022	Mar 2026	Wind
Henry County	Duke Energy Indiana, LLC	New Castle, IN	345 GWh	Jun 2001	Dec 2024	Natural Gas
Mower County Wind Energy Center	Northern States Power Co - Minnesota	Grand Meadow, MN	343 GWh	Nov 2006	Dec 2024	Wind
Driver Solar	Entergy Arkansas LLC	Osceola, AR	343 GWh	Oct 2024	Mar 2026	Solar
Bent Tree Wind Farm Phase 1	Wisconsin Power & Light Co	Hartland, MN	343 GWh	Jan 2011	Dec 2024	Wind
Bishop Hill II Wind Farm	Bishop Hill Energy II, LLC	Cambridge, IL	340 GWh	Sep 2012	Dec 2024	Wind
Garden Wind LLC	Garden Wind LLC	Zearing, IA	337 GWh	Nov 2009	Mar 2026	Wind
West Memphis Solar Station	Entergy Arkansas LLC	Crawfordsville, AR	335 GWh	Nov 2024	Mar 2026	Solar
Rugby Wind Power Project	Avangrid Power LLC	Barton, ND	335 GWh	Nov 2009	Dec 2024	Wind
Boise Cascade International Falls	Boise White Paper LLC	International Falls, MN	334 GWh	Dec 1926	Mar 2026	Black Liquor : 63.5% Natural Gas : 22.3% Wood/Wood Waste Solids : 12.9% Sludge Waste : 1.3%
Gratiot Farms Wind Project	Consumers Energy Co - (MI)	Carson City, MI	333 GWh	Nov 2020	Mar 2026	Wind
Crossover Wind	Crossover Wind, LLC	Wynne, AR	331 GWh	-	Mar 2026	Wind
Macksburg Wind Project	MidAmerican Energy Co	Macksburg, IA	330 GWh	Nov 2014	Dec 2024	Wind
Twin Lakes Solar LLC	Twin Lakes Solar LLC	Monticello, IN	328 GWh	Nov 2024	Mar 2026	Solar
Ashtabula Wind II LLC	Ashtabula Wind II LLC	Luverne, ND	328 GWh	Sep 2009	Dec 2024	Wind
Contrail Wind Farm	MidAmerican Energy Co	Bedford, IA	327 GWh	Nov 2020	Mar 2026	Wind
Michigan Wind 2	Michigan Wind 2, LLC	Minden City, MI	327 GWh	Nov 2011	Dec 2024	Wind
Umbriel Solar	Umbriel Solar, LLC	Livington, TX	324 GWh	Sep 2023	Mar 2026	Solar
Morris Solar	AES Clean Energy	Kirksville, MO	322 GWh	-	Mar 2026	Solar
Eldorado Solar I	Sol Systems	Eldorado, IL	320 GWh	-	Mar 2026	Solar
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	318 GWh	Apr 2008	Mar 2026	Wind
Blue Lake	Northern States Power Co - Minnesota	Shakopee, MN	318 GWh	Feb 1974	Dec 2024	Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
Ivester Wind Farm	MidAmerican Energy Co	Wellsburg, IA	317 GWh	Nov 2018	Mar 2026	Wind
Cass County Renewable Energy Center	Union Electric Co - (MO)	Beardstown, IL	316 GWh	Nov 2024	Mar 2026	Solar
Big River Solar	Big River Solar, LLC	Norris City, IL	315 GWh	Jul 2022	Mar 2026	Solar
Sac County Wind, LLC	Sac County Wind	Sac City, IA	313 GWh	Nov 2021	Mar 2026	Wind
Wolf Run Solar	Wolf Run Solar LLC	Chapin, IL	312 GWh	Oct 2024	Mar 2026	Solar
Unbridled Solar	National Grid Renewables	Robards, KY	312 GWh	-	Mar 2026	Solar
Combined Locks Energy Center	McKinley Paper	Combined Locks, WI	310 GWh	Apr 2002	Dec 2024	Natural Gas
Blue Bird Solar, LLC	Blue Bird Solar, LLC	Warrenton, MO	309 GWh	Nov 2024	Mar 2026	Solar
Rosewater Wind Farm	Rosewater Wind Farm LLC	Chalmers, IN	307 GWh	Nov 2020	Mar 2026	Wind
Ames Electric Services Power Plant	City of Ames - (IA)	Ames, IA	306 GWh	Apr 1968	Dec 2024	Natural Gas : 90.9% Other Biomass Solids : 9.1%
Crane Creek Wind Energy Center	Wisconsin Public Service Corp	Riceville, IA	302 GWh	Nov 2009	Dec 2024	Wind
Black Oak Wind Farm	Black Oak Wind, LLC	Sauk Centre, MN	301 GWh	Nov 2016	Mar 2026	Wind
Lake Catherine	Entergy Arkansas LLC	Jones Mill, AR	300 GWh	Mar 1970	Nov 2024	Natural Gas
Flint Hills Resources Pine Bend, LLC	Flint Hills Resources Pine Bend, LLC	Rosemount, MN	299 GWh	Apr 2019	Dec 2024	Natural Gas
Markland	Duke Energy Indiana, LLC	Florence, IN	299 GWh	Dec 1966	Dec 2024	Water
Prairie Star Wind Farm	High Prairie Wind Farm II LLC	Grand Meadow, MN	298 GWh	Nov 2007	Dec 2024	Wind
Quartz Solar, LLC	Quartz Solar, LLC	Wynne, AR	297 GWh	-	Mar 2026	Solar
Boomtown Renewable Energy Center	Union Electric Co - (MO)	Carmi, IL	294 GWh	Nov 2024	Mar 2026	Solar
Bennington Wind	Minonk Stewardship Wind LLC	Minonk, IL	294 GWh	Sep 2021	Mar 2026	Wind
Sylvarena	Cooperative Energy	Raleigh, MS	294 GWh	Jun 2003	Dec 2024	Natural Gas
Billerud Quinnesec Mill	Billerud Quinnesec Mill	Norway, MI	294 GWh	Sep 1985	Dec 2024	Black Liquor : 67.8% Wood/Wood Waste Solids : 30.2% Natural Gas : 1.9%
River Fork Solar, LLC	River Fork Solar, LLC	Albion, MI	293 GWh	Sep 2024	Mar 2026	Solar
Speedway Solar, LLC	Speedway Solar, LLC	Morrison Town, IN	293 GWh	-	Mar 2026	Solar
Tuscola Wind II LLC	Tuscola Wind II LLC	Reese, MI	292 GWh	Oct 2013	Mar 2026	Wind
Thomson	ALLETE, Inc.	Carlton, MN	290 GWh	Dec 1906	Dec 2024	Water
Paris Solar	Wisconsin Electric Power Co	Union Grove, WI	288 GWh	Nov 2024	Mar 2026	Solar
New Harvest Wind Project LLC	Avangrid Power LLC	Schleswig, IA	287 GWh	Nov 2011	Dec 2024	Wind
Kentucky Mills	Domtar Paper Company LLC	Hawesville, KY	286 GWh	May 2001	Dec 2024	Black Liquor : 77.7% Wood/Wood Waste Solids : 22.3%
Elizabeth Solar Plant	Horus Louisiana 1, LLC	Pitkin, LA	285 GWh	Jul 2024	Mar 2026	Solar
MinnDakota Wind LLC	Avangrid Power LLC	Ivanhoe, MN	283 GWh	Dec 2007	Dec 2024	Wind
West Campus Cogeneration Facility	Madison Gas & Electric Co	Madison, WI	282 GWh	Mar 2005	Dec 2024	Natural Gas : 99.8%
Rail Splitter Wind Farm	Rail Splitter Wind Farm LLC	Hopedale, IL	278 GWh	Jul 2009	Dec 2024	Wind
Deerfield Wind Energy 2	Deerfield Wind Energy 2, LLC	Port Hope, MI	278 GWh	Feb 2023	Mar 2026	Wind
Kossuth County Wind	Kossuth County Wind, LLC	Lu Verne, IA	274 GWh	Nov 2022	Mar 2026	Wind
Charles City Wind Farm	MidAmerican Energy Co	Charles City, IA	274 GWh	Mar 2008	Dec 2024	Wind
Pleasant Creek Unit 2	Interstate Power and Light Co	Palo, IA	268 GWh	Nov 2024	Mar 2026	Solar
Wood County	Wisconsin Power & Light Co	Nekoosa, WI	268 GWh	Nov 2022	Mar 2026	Solar
Prairie Ronde Solar Farm	Lightsource Renewable Energy Asset Management, LLC	Opelousas, LA	268 GWh	Oct 2024	Mar 2026	Solar
Wever Solar (150MW)	Interstate Power and Light Co	Wever, IA	263 GWh	Oct 2024	Mar 2026	Solar
Carpenter Wind Farm LLC	EDP Renewables North America LLC	Remington, IN	262 GWh	-	Mar 2026	Wind
Lake Winds Energy Park	Consumers Energy Co - (MI)	Ludington, MI	262 GWh	Oct 2012	Dec 2024	Wind
Wapsipinicon Wind Project	EDF Renewable Asset Holdings, Inc.	Dexter, MN	260 GWh	Jan 2009	Dec 2024	Wind
Portside Energy	Primary Energy Recycling Holdings, LLC	Portage, IN	256 GWh	Aug 1997	Dec 2024	Natural Gas
Saratoga Wind Farm	Madison Gas & Electric Co	Lime Springs, IA	256 GWh	Jan 2019	Mar 2026	Wind
Onion River	Wisconsin Power & Light Co	Sheboygan Cedar Grove, WI	254 GWh	Nov 2023	Mar 2026	Solar
Primient Decatur Plant Cogen	Primary Products Ingredients Americas, LLC	Decatur, IL	254 GWh	Dec 1988	Dec 2024	Natural Gas
Liberty County Solar Project	Liberty County Solar Project, LLC	Dayton, TX	253 GWh	Aug 2024	Mar 2026	Solar
Red Barn Energy	Wisconsin Public Service Corp	Montfort, WI	251 GWh	Mar 2023	Mar 2026	Wind
T B Simon Power Plant	Michigan State University	East Lansing, MI	250 GWh	Nov 1965	Mar 2026	Natural Gas
Hickory Solar	Hickory Solar LLC	Jerseyville, IL	249 GWh	Aug 2024	Mar 2026	Solar
Flat Fork Solar	Flat Fork Solar, LLC	Wheatley, AR	248 GWh	-	Mar 2026	Solar
Hancock County Wind Energy Center	FPL Energy Hancock County Wind, LLC	Garner, IA	248 GWh	Nov 2002	Mar 2026	Wind
Brookfield	DTE Electric Company	Pigeon, MI	247 GWh	Jan 2014	Mar 2026	Wind
Sigel Wind Park	DTE Electric Company	Harbor Beach, MI	247 GWh	Nov 2012	Mar 2026	Wind
Dearborn Energy Center	DTE Electric Company	Dearborn, MI	247 GWh	Nov 2019	Dec 2024	Natural Gas
Apple Blossom Wind Farm	Apple Blossom Wind, LLC	Pigeon, MI	247 GWh	Oct 2017	Mar 2026	Wind
Calhoun County Solar Project	AES Clean Energy	Sheridan Township, MI	247 GWh	-	Mar 2026	Solar
Goodyear Beaumont Chemical Plant	Goodyear Tire & Rubber Co	Beaumont, TX	247 GWh	Feb 1987	Mar 2026	Natural Gas : 98.3% Waste/Other Oil : 1.7%
Farmers City Wind LLC	Avangrid Power LLC	Tarkio, MO	246 GWh	Mar 2009	Dec 2024	Wind
Pheasant Run Wind LLC	Pheasant Run Wind LLC	Pigeon, MI	246 GWh	Nov 2013	Mar 2026	Wind
Indiana Harbor West	Cleveland Cliffs	East Chicago, IN	245 GWh	Sep 1939	Dec 2024	Natural Gas
Kalamazoo River Generating Station	CMS Generation MI Power LLC	Comstock, MI	245 GWh	May 1999	Dec 2024	Natural Gas
Lake Benton I	ALLETE Clean Energy	Lake Benton, MN	244 GWh	Jan 1998	Dec 2024	Wind

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	522.6 GWh	4
#27	Associated Electric Cooperative, Inc.	23.8 TWh	47
#13	Duke Energy Carolinas	112.2 TWh	565
#51	Duke Energy Progress West	4.6 TWh	10
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.1 TWh	25
#1	PJM Interconnection, LLC	873.9 TWh	2,465
#6	Southern Company Services, Inc. - Trans	252.5 TWh	417
#5	Southwest Power Pool	304.8 TWh	835
#53	Southwestern Power Administration	4.3 TWh	34
#9	Tennessee Valley Authority	163.7 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	873.9 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	669.3 TWh	2,831
#3	Electric Reliability Council of Texas, Inc.	489.5 TWh	1,313
#5	Southwest Power Pool	304.8 TWh	835
#6	Southern Company Services, Inc. - Trans	252.5 TWh	417
#7	California Independent System Operator	173.0 TWh	2,075
#9	Tennessee Valley Authority	163.7 TWh	204
#10	Florida Power & Light Co.	151.0 TWh	187
#12	New York Independent System Operator	134.9 TWh	1,211
#13	Duke Energy Carolinas	112.2 TWh	565