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
Cereal City Solar, LLC	Cereal City Solar, LLC	Battle Creek, MI	197 GWh	Nov 2023	Feb 2026	Solar
Spiritwood Station	Great River Energy	Spiritwood, ND	198 GWh	Oct 2014	Feb 2026	Natural Gas : 52.8% Refined Coal : 47.2%
Sam Rayburn Dam	USACE-Fort Worth District	Jasper, TX	199 GWh	Aug 1965	Dec 2024	Water
Edison Sault	Cloverland Electric Co-op	Sault Ste. Marie, MI	199 GWh	Jun 1901	Dec 2024	Water
Wilton Wind II LLC	Wilton Wind II LLC	Wilton, ND	200 GWh	Oct 2009	Dec 2024	Wind
Shelby Energy County	Shelby County Energy Center, LLC	Neoga, IL	201 GWh	May 2000	Dec 2024	Natural Gas
St. Mary Clean Energy Center	Cleco Power LLC	Centerville, LA	201 GWh	Jul 2019	Dec 2024	Waste Heat
Wildflower Solar, LLC (MS)	Duke Energy Renewables Services	DeSoto, MS	201 GWh	Apr 2024	Feb 2026	Solar
Harvest 2	Harvest II Windfarm, LLC	Elkton, MI	202 GWh	Oct 2012	Dec 2024	Wind
Red Rock Hydro Plant	Western Minnesota Mun Pwr Agny	Pella, IA	202 GWh	Apr 2021	Feb 2026	Water
Badger Hollow I	Wisconsin Public Service Corp	Montfort, WI	203 GWh	Oct 2021	Feb 2026	Solar
MU Combined Heat and Power Plant	Curators of the University of Missouri	Columbia, MO	203 GWh	Jun 1961	Feb 2026	Natural Gas : 76.9% Wood/Wood Waste Solids : 20.5% Bituminous Coal : 2.6%
Wapello Solar LLC	Wapello Solar LLC	Wapello, IA	203 GWh	Feb 2021	Feb 2026	Solar
Point Beach Solar	Point Beach Solar	Two Creeks, WI	204 GWh	Aug 2021	Feb 2026	Solar
Amite Solar, LLC	Amite Solar, LLC	Roseland, LA	205 GWh	-	Feb 2026	Solar
Springfield Solar (WI)	Wisconsin Power & Light Co	Lomira, WI	205 GWh	Nov 2023	Feb 2026	Solar
Elm Creek Wind II LLC	Avangrid Power LLC	Trimont, MN	205 GWh	Nov 2010	Dec 2024	Wind
Independence Wind Farm	Independence Wind Energy LLC	Manchester, IA	207 GWh	Nov 2021	Feb 2026	Wind
Flat Fork Solar	Flat Fork Solar, LLC	Wheatley, AR	208 GWh	-	Feb 2026	Solar
Hoosier Wind Project LLC	AES Indiana	Goodland, IN	208 GWh	Oct 2009	Dec 2023	Wind
Holliday Creek Solar	MidAmerican Energy Co	Fort Dodge, IA	208 GWh	Jun 2022	Feb 2026	Solar
Atlantic Alumina, Gramercy Operations	Atalco Gramercy LLC	Gramercy, LA	208 GWh	Jan 1958	Dec 2024	Natural Gas
Crossett Solar	Cubico USA, LLC	Crossett, AR	208 GWh	Aug 2024	Feb 2026	Solar
Walnut Bend Solar Station PV	Walnut Bend Solar Station	Moro, AR	209 GWh	Aug 2024	Feb 2026	Solar
University of Illinois Abbott Power Plt	University of Illinois	Champaign, IL	211 GWh	Oct 1940	Dec 2024	Natural Gas : 97.4% Bituminous Coal : 2.6%
Badger Hollow II	Wisconsin Electric Power Co	Cobb, WI	211 GWh	Nov 2023	Feb 2026	Solar
International Paper Vicksburg Mill	International Paper Co-Vicksbg	Vicksburg, MS	212 GWh	Dec 1966	Feb 2026	Black Liquor : 53.4% Natural Gas : 29.3% Wood/Wood Waste Solids : 17.3%
Chicot Solar	Chicot Solar, LLC	Lake Village, AR	213 GWh	Aug 2020	Feb 2026	Solar
Happy Solar 1	Lightsource Renewable Energy Asset Management, LLC	Searcy, AR	216 GWh	Sep 2023	Feb 2026	Solar
Bison 2 Wind Energy Center	ALLETE, Inc.	New Salem, ND	219 GWh	Nov 2012	Dec 2024	Wind
Winfield Solar	Winfield Solar I, LLC	Winfield, MO	219 GWh	-	Feb 2026	Solar
Sauk Solar Park	DTE Electric Company	Union City, MI	223 GWh	-	Feb 2026	Solar
Bison 3 Wind Energy Center	ALLETE, Inc.	New Salem, ND	223 GWh	Nov 2012	Dec 2024	Wind
Prairie State Solar Project	Prairie State Solar, LLC	Swanwick Township, IL	225 GWh	Jun 2021	Feb 2026	Solar
Bayou Galion Solar Project	Bayou Galion Solar Project, LLC	Mer Rouge, LA	225 GWh	Oct 2024	Feb 2026	Solar
Port Arthur Texas Refinery	Total Petrochemicals USA Inc	Port Arthur, TX	226 GWh	Jul 1988	Dec 2024	Natural Gas : 75.0% Other Gas : 25.0%
CITGO Refinery Powerhouse	CITGO Petroleum Corp	Sulphur, LA	226 GWh	Dec 1941	Dec 2024	Other Gas
Paris (WI)	Wisconsin Electric Power Co	Union Grove, WI	227 GWh	Feb 1995	Dec 2024	Natural Gas
Consumer Operations LLC	Georgia-Pacific Consumer Oper. Green Bay LLC	Green Bay, WI	228 GWh	Dec 1953	Feb 2026	Natural Gas
Crystal Lake 3 LLC	Crystal Lake 3 LLC	Britt, IA	228 GWh	Nov 2009	Feb 2026	Wind
Gratiot County Wind LLC	Invenergy Services LLC	Breckenridge, MI	228 GWh	Apr 2012	Dec 2024	Wind
Assembly Solar II LLC	Assembly Solar II LLC	Lennon, MI	229 GWh	Nov 2021	Feb 2026	Solar
Dressor Plains Solar, LLC	Dressor Plains Solar, LLC	Herrick, IL	232 GWh	Aug 2021	Feb 2026	Solar
University of Michigan	University of Michigan	Ann Arbor, MI	233 GWh	Dec 1974	Feb 2026	Natural Gas
Prairie Mist Solar	Prairie Mist Solar Project, LLC	Montrose, AR	233 GWh	Aug 2024	Feb 2026	Solar
Gratiot Wind Park	DTE Electric Company	Breckenridge, MI	235 GWh	Oct 2011	Feb 2026	Wind
Calhoun County Solar Project	AES Clean Energy	Sheridan Township, MI	235 GWh	-	Feb 2026	Solar
Roquette America	Roquette America	Keokuk, IA	236 GWh	Jun 2004	Feb 2026	Natural Gas
Angus Anson	Northern States Power Co - Minnesota	Sioux Falls, SD	237 GWh	Jul 1994	Dec 2024	Natural Gas : 99.2% Distillate Fuel Oil : 0.8%
Ragsdale Solar LLC	Ragsdale Solar, LLC	Canton, MS	238 GWh	Oct 2024	Feb 2026	Solar
USG Paper, LLC - Orange Mill	USG Paper LLC	Orange, TX	239 GWh	Oct 1967	Dec 2023	Black Liquor : 59.3% Wood/Wood Waste Solids : 39.8% Tire-derived Fuels : 0.9%
Lost Lakes Wind Farm LLC	Lost Lakes Wind Farm LLC	Lake Park, IA	244 GWh	Nov 2009	Dec 2024	Wind
Lake Benton I	ALLETE Clean Energy	Lake Benton, MN	244 GWh	Jan 1998	Dec 2024	Wind
Kalamazoo River Generating Station	CMS Generation MI Power LLC	Comstock, MI	245 GWh	May 1999	Dec 2024	Natural Gas
Indiana Harbor West	Cleveland Cliffs	East Chicago, IN	245 GWh	Sep 1939	Dec 2024	Natural Gas
Farmers City Wind LLC	Avangrid Power LLC	Tarkio, MO	246 GWh	Mar 2009	Dec 2024	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	248 GWh	Oct 2017	Feb 2026	Wind
Sigel Wind Park	DTE Electric Company	Harbor Beach, MI	250 GWh	Nov 2012	Feb 2026	Wind
Hickory Solar	Hickory Solar LLC	Jerseyville, IL	250 GWh	Aug 2024	Feb 2026	Solar
Pheasant Run Wind LLC	Pheasant Run Wind LLC	Pigeon, MI	251 GWh	Nov 2013	Feb 2026	Wind
Brookfield	DTE Electric Company	Pigeon, MI	251 GWh	Jan 2014	Feb 2026	Wind
Hancock County Wind Energy Center	FPL Energy Hancock County Wind, LLC	Garner, IA	251 GWh	Nov 2002	Feb 2026	Wind
T B Simon Power Plant	Michigan State University	East Lansing, MI	252 GWh	Nov 1965	Feb 2026	Natural Gas
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%
Liberty County Solar Project	Liberty County Solar Project, LLC	Dayton, TX	252 GWh	Aug 2024	Feb 2026	Solar
Red Barn Energy	Wisconsin Public Service Corp	Montfort, WI	253 GWh	Mar 2023	Feb 2026	Wind
Primient Decatur Plant Cogen	Primary Products Ingredients Americas, LLC	Decatur, IL	254 GWh	Dec 1988	Dec 2024	Natural Gas
Portside Energy	Primary Energy Recycling Holdings, LLC	Portage, IN	256 GWh	Aug 1997	Dec 2024	Natural Gas
Onion River	Wisconsin Power & Light Co	Sheboygan Cedar Grove, WI	258 GWh	Nov 2023	Feb 2026	Solar
Saratoga Wind Farm	Madison Gas & Electric Co	Lime Springs, IA	258 GWh	Jan 2019	Feb 2026	Wind
Speedway Solar, LLC	Speedway Solar, LLC	Morrison Town, IN	258 GWh	-	Feb 2026	Solar
Wapsipinicon Wind Project	EDF Renewable Asset Holdings, Inc.	Dexter, MN	260 GWh	Jan 2009	Dec 2024	Wind
Lake Winds Energy Park	Consumers Energy Co - (MI)	Ludington, MI	262 GWh	Oct 2012	Dec 2024	Wind
Wever Solar (150MW)	Interstate Power and Light Co	Wever, IA	265 GWh	Oct 2024	Feb 2026	Solar
Crossover Wind	Crossover Wind, LLC	Wynne, AR	269 GWh	-	Feb 2026	Wind
Prairie Ronde Solar Farm	Lightsource Renewable Energy Asset Management, LLC	Opelousas, LA	269 GWh	Oct 2024	Feb 2026	Solar
Pleasant Creek Unit 2	Interstate Power and Light Co	Palo, IA	273 GWh	Nov 2024	Feb 2026	Solar
Charles City Wind Farm	MidAmerican Energy Co	Charles City, IA	274 GWh	Mar 2008	Dec 2024	Wind
Kossuth County Wind	Kossuth County Wind, LLC	Lu Verne, IA	275 GWh	Nov 2022	Feb 2026	Wind
Wood County	Wisconsin Power & Light Co	Nekoosa, WI	278 GWh	Nov 2022	Feb 2026	Solar
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	281 GWh	Feb 2023	Feb 2026	Wind
West Campus Cogeneration Facility	Madison Gas & Electric Co	Madison, WI	282 GWh	Mar 2005	Dec 2024	Natural Gas : 99.8%
MinnDakota Wind LLC	Avangrid Power LLC	Ivanhoe, MN	283 GWh	Dec 2007	Dec 2024	Wind
Elizabeth Solar Plant	Horus Louisiana 1, LLC	Pitkin, LA	284 GWh	Jul 2024	Feb 2026	Solar
Morris Solar	AES Clean Energy	Kirksville, MO	285 GWh	-	Feb 2026	Solar
Kentucky Mills	Domtar Paper Company LLC	Hawesville, KY	286 GWh	May 2001	Dec 2024	Black Liquor : 77.7% Wood/Wood Waste Solids : 22.3%
New Harvest Wind Project LLC	Avangrid Power LLC	Schleswig, IA	287 GWh	Nov 2011	Dec 2024	Wind
Pine Bluff Mill	Suzano Packaging LLC	Pine Bluff, AR	289 GWh	Apr 1958	Dec 2023	Black Liquor : 80.1% Natural Gas : 19.9%
Boomtown Renewable Energy Center	Union Electric Co - (MO)	Carmi, IL	289 GWh	Nov 2024	Feb 2026	Solar
Thomson	ALLETE, Inc.	Carlton, MN	290 GWh	Dec 1906	Dec 2024	Water
Courtenay Wind Farm	Northern States Power Co - Minnesota	Courtenay, ND	292 GWh	Nov 2016	Feb 2026	Wind
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%
Sylvarena	Cooperative Energy	Raleigh, MS	294 GWh	Jun 2003	Dec 2024	Natural Gas
River Fork Solar, LLC	River Fork Solar, LLC	Albion, MI	294 GWh	Sep 2024	Feb 2026	Solar
Tuscola Wind II LLC	Tuscola Wind II LLC	Reese, MI	297 GWh	Oct 2013	Feb 2026	Wind
Paris Solar	Wisconsin Electric Power Co	Union Grove, WI	298 GWh	Nov 2024	Feb 2026	Solar
Prairie Star Wind Farm	High Prairie Wind Farm II LLC	Grand Meadow, MN	298 GWh	Nov 2007	Dec 2024	Wind
Markland	Duke Energy Indiana, LLC	Florence, IN	299 GWh	Dec 1966	Dec 2024	Water

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