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
Cavalry Solar Hybrid	Cavalry Energy Center LLC	Monon, IN	366 GWh	Apr 2024	Feb 2026	Solar
Valley (WI)	Wisconsin Electric Power Co	Milwaukee, WI	365 GWh	May 1968	Feb 2026	Natural Gas
TES Filer City Station	TES Filer City Station LP	Filer City, MI	365 GWh	Apr 1990	Feb 2026	Bituminous Coal : 65.2% Natural Gas : 21.4% Wood/Wood Waste Solids : 13.4%
Oliver Wind III, LLC	Oliver Wind III, LLC	Mandan, ND	363 GWh	Dec 2016	Feb 2026	Wind
Stoneray Power Partners, LLC	EDF Renewable Asset Holdings, Inc.	Woodstock, MN	363 GWh	Jan 2019	Feb 2026	Wind
Hardy Hills Solar Energy LLC	Hardy Hills Solar LLC	Frankfort, IN	363 GWh	Feb 2024	Feb 2026	Solar
Tuscola Bay Wind	Tuscola Bay Wind LLC	Reese, MI	362 GWh	Nov 2012	Feb 2026	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%
Garden Wind LLC	Garden Wind LLC	Zearing, IA	359 GWh	Nov 2009	Feb 2026	Wind
Newport Solar Project	Newport Solar, LLC	Newport, AR	358 GWh	Sep 2023	Feb 2026	Solar
Glacier Hills	Wisconsin Electric Power Co	Cambria, WI	358 GWh	Nov 2011	Feb 2026	Wind
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	355 GWh	-	Feb 2026	Solar
Driver Solar	Entergy Arkansas LLC	Osceola, AR	355 GWh	Oct 2024	Feb 2026	Solar
Calhoun Solar	Invenergy Services LLC	Battle Creek, MI	355 GWh	Nov 2022	Feb 2026	Solar
Settlers Trail Wind Farm LLC	Big Sky Wind, LLC	Sheldon, IL	354 GWh	Sep 2011	Dec 2024	Wind
Northern Wind	Northern States Power Co - Minnesota	Lake Wilson, MN	348 GWh	Dec 2022	Feb 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
Bent Tree Wind Farm Phase 1	Wisconsin Power & Light Co	Hartland, MN	343 GWh	Jan 2011	Dec 2024	Wind
West Memphis Solar Station	Entergy Arkansas LLC	Crawfordsville, AR	341 GWh	Nov 2024	Feb 2026	Solar
Gratiot Farms Wind Project	Consumers Energy Co - (MI)	Carson City, MI	341 GWh	Nov 2020	Feb 2026	Wind
Bishop Hill II Wind Farm	Bishop Hill Energy II, LLC	Cambridge, IL	340 GWh	Sep 2012	Dec 2024	Wind
Rugby Wind Power Project	Avangrid Power LLC	Barton, ND	335 GWh	Nov 2009	Dec 2024	Wind
Cass County Renewable Energy Center	Union Electric Co - (MO)	Beardstown, IL	335 GWh	Nov 2024	Feb 2026	Solar
Boise Cascade International Falls	Boise White Paper LLC	International Falls, MN	333 GWh	Dec 1926	Feb 2026	Black Liquor : 63.6% Natural Gas : 22.2% Wood/Wood Waste Solids : 12.8% Sludge Waste : 1.3%
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	329 GWh	Nov 2024	Feb 2026	Solar
Ashtabula Wind II LLC	Ashtabula Wind II LLC	Luverne, ND	328 GWh	Sep 2009	Dec 2024	Wind
Michigan Wind 2	Michigan Wind 2, LLC	Minden City, MI	327 GWh	Nov 2011	Dec 2024	Wind
Contrail Wind Farm	MidAmerican Energy Co	Bedford, IA	327 GWh	Nov 2020	Feb 2026	Wind
Umbriel Solar	Umbriel Solar, LLC	Livington, TX	324 GWh	Sep 2023	Feb 2026	Solar
Blue Sky Green Field Wind Project	Wisconsin Electric Power Co	Fond du Lac, WI	324 GWh	Apr 2008	Feb 2026	Wind
Ivester Wind Farm	MidAmerican Energy Co	Wellsburg, IA	320 GWh	Nov 2018	Feb 2026	Wind
Eldorado Solar I	Sol Systems	Eldorado, IL	320 GWh	-	Feb 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 Lake	Northern States Power Co - Minnesota	Shakopee, MN	318 GWh	Feb 1974	Dec 2024	Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
Big River Solar	Big River Solar, LLC	Norris City, IL	317 GWh	Jul 2022	Feb 2026	Solar
Posey Solar	Southern Indiana Gas & Elec Co	Mount Vernon, IN	316 GWh	-	Feb 2026	Solar
Green River Solar	Green River Solar, LLC	Guston, KY	316 GWh	-	Feb 2026	Solar
Wolf Run Solar	Wolf Run Solar LLC	Chapin, IL	315 GWh	Oct 2024	Feb 2026	Solar
Unbridled Solar	National Grid Renewables	Robards, KY	312 GWh	-	Feb 2026	Solar
Sac County Wind, LLC	Sac County Wind	Sac City, IA	312 GWh	Nov 2021	Feb 2026	Wind
Combined Locks Energy Center	McKinley Paper	Combined Locks, WI	310 GWh	Apr 2002	Dec 2024	Natural Gas
Rosewater Wind Farm	Rosewater Wind Farm LLC	Chalmers, IN	307 GWh	Nov 2020	Feb 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
Bennington Wind	Minonk Stewardship Wind LLC	Minonk, IL	300 GWh	Sep 2021	Feb 2026	Wind
Lake Catherine	Entergy Arkansas LLC	Jones Mill, AR	300 GWh	Mar 1970	Nov 2024	Natural Gas
Quartz Solar, LLC	Quartz Solar, LLC	Wynne, AR	299 GWh	-	Feb 2026	Solar
Black Oak Wind Farm	Black Oak Wind, LLC	Sauk Centre, MN	299 GWh	Nov 2016	Feb 2026	Wind
Blue Bird Solar, LLC	Blue Bird Solar, LLC	Warrenton, MO	299 GWh	Nov 2024	Feb 2026	Solar
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
Paris Solar	Wisconsin Electric Power Co	Union Grove, WI	298 GWh	Nov 2024	Feb 2026	Solar
Tuscola Wind II LLC	Tuscola Wind II LLC	Reese, MI	297 GWh	Oct 2013	Feb 2026	Wind
River Fork Solar, LLC	River Fork Solar, LLC	Albion, MI	294 GWh	Sep 2024	Feb 2026	Solar
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%
Courtenay Wind Farm	Northern States Power Co - Minnesota	Courtenay, ND	292 GWh	Nov 2016	Feb 2026	Wind
Thomson	ALLETE, Inc.	Carlton, MN	290 GWh	Dec 1906	Dec 2024	Water
Boomtown Renewable Energy Center	Union Electric Co - (MO)	Carmi, IL	289 GWh	Nov 2024	Feb 2026	Solar
Pine Bluff Mill	Suzano Packaging LLC	Pine Bluff, AR	289 GWh	Apr 1958	Dec 2023	Black Liquor : 80.1% Natural Gas : 19.9%
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%
Morris Solar	AES Clean Energy	Kirksville, MO	285 GWh	-	Feb 2026	Solar
Elizabeth Solar Plant	Horus Louisiana 1, LLC	Pitkin, LA	284 GWh	Jul 2024	Feb 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%
Deerfield Wind Energy 2	Deerfield Wind Energy 2, LLC	Port Hope, MI	281 GWh	Feb 2023	Feb 2026	Wind
Rail Splitter Wind Farm	Rail Splitter Wind Farm LLC	Hopedale, IL	278 GWh	Jul 2009	Dec 2024	Wind
Wood County	Wisconsin Power & Light Co	Nekoosa, WI	278 GWh	Nov 2022	Feb 2026	Solar
Kossuth County Wind	Kossuth County Wind, LLC	Lu Verne, IA	275 GWh	Nov 2022	Feb 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	273 GWh	Nov 2024	Feb 2026	Solar
Prairie Ronde Solar Farm	Lightsource Renewable Energy Asset Management, LLC	Opelousas, LA	269 GWh	Oct 2024	Feb 2026	Solar
Crossover Wind	Crossover Wind, LLC	Wynne, AR	269 GWh	-	Feb 2026	Wind
Wever Solar (150MW)	Interstate Power and Light Co	Wever, IA	265 GWh	Oct 2024	Feb 2026	Solar
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
Speedway Solar, LLC	Speedway Solar, LLC	Morrison Town, IN	258 GWh	-	Feb 2026	Solar
Saratoga Wind Farm	Madison Gas & Electric Co	Lime Springs, IA	258 GWh	Jan 2019	Feb 2026	Wind
Onion River	Wisconsin Power & Light Co	Sheboygan Cedar Grove, WI	258 GWh	Nov 2023	Feb 2026	Solar
Portside Energy	Primary Energy Recycling Holdings, LLC	Portage, IN	256 GWh	Aug 1997	Dec 2024	Natural Gas
Primient Decatur Plant Cogen	Primary Products Ingredients Americas, LLC	Decatur, IL	254 GWh	Dec 1988	Dec 2024	Natural Gas
Red Barn Energy	Wisconsin Public Service Corp	Montfort, WI	253 GWh	Mar 2023	Feb 2026	Wind
Liberty County Solar Project	Liberty County Solar Project, LLC	Dayton, TX	252 GWh	Aug 2024	Feb 2026	Solar
Goodyear Beaumont Chemical Plant	Goodyear Tire & Rubber Co	Beaumont, TX	252 GWh	Feb 1987	Feb 2026	Natural Gas : 98.3% Waste/Other Oil : 1.7%
T B Simon Power Plant	Michigan State University	East Lansing, MI	252 GWh	Nov 1965	Feb 2026	Natural Gas
Hancock County Wind Energy Center	FPL Energy Hancock County Wind, LLC	Garner, IA	251 GWh	Nov 2002	Feb 2026	Wind
Brookfield	DTE Electric Company	Pigeon, MI	251 GWh	Jan 2014	Feb 2026	Wind
Pheasant Run Wind LLC	Pheasant Run Wind LLC	Pigeon, MI	251 GWh	Nov 2013	Feb 2026	Wind
Hickory Solar	Hickory Solar LLC	Jerseyville, IL	250 GWh	Aug 2024	Feb 2026	Solar
Sigel Wind Park	DTE Electric Company	Harbor Beach, MI	250 GWh	Nov 2012	Feb 2026	Wind
Apple Blossom Wind Farm	Apple Blossom Wind, LLC	Pigeon, MI	248 GWh	Oct 2017	Feb 2026	Wind
Dearborn Energy Center	DTE Electric Company	Dearborn, MI	247 GWh	Nov 2019	Dec 2024	Natural Gas
Farmers City Wind LLC	Avangrid Power LLC	Tarkio, MO	246 GWh	Mar 2009	Dec 2024	Wind
Indiana Harbor West	Cleveland Cliffs	East Chicago, IN	245 GWh	Sep 1939	Dec 2024	Natural Gas

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