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
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
Lost Lakes Wind Farm LLC	Lost Lakes Wind Farm LLC	Lake Park, IA	244 GWh	Nov 2009	Dec 2024	Wind
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%
Ragsdale Solar LLC	Ragsdale Solar, LLC	Canton, MS	238 GWh	Oct 2024	Feb 2026	Solar
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%
Roquette America	Roquette America	Keokuk, IA	236 GWh	Jun 2004	Feb 2026	Natural Gas
Calhoun County Solar Project	AES Clean Energy	Sheridan Township, MI	235 GWh	-	Feb 2026	Solar
Gratiot Wind Park	DTE Electric Company	Breckenridge, MI	235 GWh	Oct 2011	Feb 2026	Wind
Prairie Mist Solar	Prairie Mist Solar Project, LLC	Montrose, AR	233 GWh	Aug 2024	Feb 2026	Solar
University of Michigan	University of Michigan	Ann Arbor, MI	233 GWh	Dec 1974	Feb 2026	Natural Gas
Dressor Plains Solar, LLC	Dressor Plains Solar, LLC	Herrick, IL	232 GWh	Aug 2021	Feb 2026	Solar
Assembly Solar II LLC	Assembly Solar II LLC	Lennon, MI	229 GWh	Nov 2021	Feb 2026	Solar
Gratiot County Wind LLC	Invenergy Services LLC	Breckenridge, MI	228 GWh	Apr 2012	Dec 2024	Wind
Crystal Lake 3 LLC	Crystal Lake 3 LLC	Britt, IA	228 GWh	Nov 2009	Feb 2026	Wind
Consumer Operations LLC	Georgia-Pacific Consumer Oper. Green Bay LLC	Green Bay, WI	228 GWh	Dec 1953	Feb 2026	Natural Gas
Paris (WI)	Wisconsin Electric Power Co	Union Grove, WI	227 GWh	Feb 1995	Dec 2024	Natural Gas
CITGO Refinery Powerhouse	CITGO Petroleum Corp	Sulphur, LA	226 GWh	Dec 1941	Dec 2024	Other Gas
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%
Bayou Galion Solar Project	Bayou Galion Solar Project, LLC	Mer Rouge, LA	225 GWh	Oct 2024	Feb 2026	Solar
Prairie State Solar Project	Prairie State Solar, LLC	Swanwick Township, IL	225 GWh	Jun 2021	Feb 2026	Solar
Bison 3 Wind Energy Center	ALLETE, Inc.	New Salem, ND	223 GWh	Nov 2012	Dec 2024	Wind
Sauk Solar Park	DTE Electric Company	Union City, MI	223 GWh	-	Feb 2026	Solar
Winfield Solar	Winfield Solar I, LLC	Winfield, MO	219 GWh	-	Feb 2026	Solar
Bison 2 Wind Energy Center	ALLETE, Inc.	New Salem, ND	219 GWh	Nov 2012	Dec 2024	Wind
Happy Solar 1	Lightsource Renewable Energy Asset Management, LLC	Searcy, AR	216 GWh	Sep 2023	Feb 2026	Solar
Chicot Solar	Chicot Solar, LLC	Lake Village, AR	213 GWh	Aug 2020	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%
Badger Hollow II	Wisconsin Electric Power Co	Cobb, WI	211 GWh	Nov 2023	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%
Walnut Bend Solar Station PV	Walnut Bend Solar Station	Moro, AR	209 GWh	Aug 2024	Feb 2026	Solar
Crossett Solar	Cubico USA, LLC	Crossett, AR	208 GWh	Aug 2024	Feb 2026	Solar
Atlantic Alumina, Gramercy Operations	Atalco Gramercy LLC	Gramercy, LA	208 GWh	Jan 1958	Dec 2024	Natural Gas
Holliday Creek Solar	MidAmerican Energy Co	Fort Dodge, IA	208 GWh	Jun 2022	Feb 2026	Solar
Hoosier Wind Project LLC	AES Indiana	Goodland, IN	208 GWh	Oct 2009	Dec 2023	Wind
Flat Fork Solar	Flat Fork Solar, LLC	Wheatley, AR	208 GWh	-	Feb 2026	Solar
Independence Wind Farm	Independence Wind Energy LLC	Manchester, IA	207 GWh	Nov 2021	Feb 2026	Wind
Elm Creek Wind II LLC	Avangrid Power LLC	Trimont, MN	205 GWh	Nov 2010	Dec 2024	Wind
Springfield Solar (WI)	Wisconsin Power & Light Co	Lomira, WI	205 GWh	Nov 2023	Feb 2026	Solar
Amite Solar, LLC	Amite Solar, LLC	Roseland, LA	205 GWh	-	Feb 2026	Solar
Point Beach Solar	Point Beach Solar	Two Creeks, WI	204 GWh	Aug 2021	Feb 2026	Solar
Wapello Solar LLC	Wapello Solar LLC	Wapello, IA	203 GWh	Feb 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%
Badger Hollow I	Wisconsin Public Service Corp	Montfort, WI	203 GWh	Oct 2021	Feb 2026	Solar
Red Rock Hydro Plant	Western Minnesota Mun Pwr Agny	Pella, IA	202 GWh	Apr 2021	Feb 2026	Water
Harvest 2	Harvest II Windfarm, LLC	Elkton, MI	202 GWh	Oct 2012	Dec 2024	Wind
Wildflower Solar, LLC (MS)	Duke Energy Renewables Services	DeSoto, MS	201 GWh	Apr 2024	Feb 2026	Solar
St. Mary Clean Energy Center	Cleco Power LLC	Centerville, LA	201 GWh	Jul 2019	Dec 2024	Waste Heat
Shelby Energy County	Shelby County Energy Center, LLC	Neoga, IL	201 GWh	May 2000	Dec 2024	Natural Gas
Wilton Wind II LLC	Wilton Wind II LLC	Wilton, ND	200 GWh	Oct 2009	Dec 2024	Wind
Edison Sault	Cloverland Electric Co-op	Sault Ste. Marie, MI	199 GWh	Jun 1901	Dec 2024	Water
Sam Rayburn Dam	USACE-Fort Worth District	Jasper, TX	199 GWh	Aug 1965	Dec 2024	Water
Spiritwood Station	Great River Energy	Spiritwood, ND	198 GWh	Oct 2014	Feb 2026	Natural Gas : 52.8% Refined Coal : 47.2%
Cereal City Solar, LLC	Cereal City Solar, LLC	Battle Creek, MI	197 GWh	Nov 2023	Feb 2026	Solar
Jeffers Wind 20 LLC	Northern States Power Co - Minnesota	Jeffers, MN	195 GWh	Sep 2008	Dec 2024	Wind
Worthington Generation LLC	Hoosier Energy R E C, Inc	Worthington, IN	195 GWh	May 2000	Dec 2024	Natural Gas
Woodruff County Solar	Arkansas Electric Coop Corp	Augusta, AR	195 GWh	Sep 2024	Feb 2026	Solar
Lake Charles Polymers	Equistar Chemicals LP	Westlake, LA	195 GWh	Aug 2011	Feb 2026	Natural Gas
Hardin County Peaking Facility	Entergy Texas Inc.	Kountze, TX	195 GWh	Jun 2001	Dec 2024	Natural Gas
Osceola Windpower II	Osceola Windpower II	Harris, IA	193 GWh	Aug 2008	Feb 2026	Wind
Fairbanks Wind Park	DTE Electric Company	Garden, MI	193 GWh	Dec 2021	Feb 2026	Wind
Two Creeks Solar	Wisconsin Public Service Corp	Two Rivers, WI	193 GWh	Oct 2020	Feb 2026	Solar
Montpelier Electric Generating Station	Kimura Power LLC	Poneto, IN	192 GWh	May 2001	Feb 2026	Natural Gas : 99.1% Distillate Fuel Oil : 0.9%
Appleseed Solar	Appleseed Solar, LLC	Logansport, IN	191 GWh	-	Feb 2026	Solar
Franklin County Wind Farm	Interstate Power and Light Co	Iowa Falls, IA	191 GWh	Nov 2012	Dec 2024	Wind
Sumpter	Wolverine Power Supply Coop	Belleville, MI	190 GWh	Jun 2002	Dec 2024	Natural Gas
Searcy Solar Hybrid	Searcy Solar, LLC	Searcy, AR	190 GWh	Dec 2021	Feb 2026	Solar
FPL Energy Burleigh County Wind	FPL Energy Burleigh County Wind LLC	Wilton, ND	190 GWh	Nov 2005	Dec 2024	Wind
Sebree Solar, LLC - Hybrid	Sebree Solar, LLC	Robards, KY	190 GWh	-	Feb 2026	Solar
Wautoma Solar	Wisconsin Power & Light Co	Wautoma, WI	190 GWh	Nov 2023	Feb 2026	Solar
Carpenter Wind Farm LLC	EDP Renewables North America LLC	Remington, IN	189 GWh	-	Feb 2026	Wind
Gibson Solar	Gibson Solar, LLC	Princeton, IN	188 GWh	-	Feb 2026	Solar
Beebe 1A	Beebe Renewable Energy, LLC	Ithaca, MI	187 GWh	Nov 2012	Dec 2024	Wind
New Orleans Power	Entergy New Orleans, LLC	New Orleans, LA	184 GWh	Apr 2020	Feb 2026	Natural Gas
Alpena Cement Plant	Lafarge Corp	Alpena, MI	181 GWh	Dec 1951	Feb 2026	Petroleum Coke : 86.1% Natural Gas : 13.9%
FPL Energy Oliver Wind II LLC	FPL Energy Oliver County Wind II LLC	Center, ND	181 GWh	Nov 2007	Dec 2024	Wind
North Star Solar Project	North Star Solar PV LLC	North Branch, MN	180 GWh	Nov 2016	Feb 2026	Solar
Manitowoc	Manitowoc Public Utilities	Manitowoc, WI	179 GWh	May 1955	Feb 2026	Wood/Wood Waste Solids : 91.2% Petroleum Coke : 4.9% Bituminous Coal : 3.6%
Harvest Gold Solar	Harvest Gold Solar Power, LLC	Indianola, MS	179 GWh	Jul 2024	Feb 2026	Solar
Elk Wind Farm	Greenbacker Renewable Energy Corporation	Greeley, IA	178 GWh	Nov 2011	Dec 2024	Wind
FPL Energy Oliver Wind I LLC	FPL Energy Oliver County Wind	Center, ND	177 GWh	Nov 2006	Dec 2024	Wind
Elm Creek Wind LLC	Avangrid Power LLC	Trimont, MN	176 GWh	Nov 2008	Dec 2024	Wind
Hawkeye Power Partners LLC	Hawkeye Power Partners LLC	Garner, IA	176 GWh	Mar 1999	Dec 2024	Wind
Concord	Wisconsin Electric Power Co	Watertown, WI	175 GWh	Jun 1993	Dec 2024	Natural Gas : 99.8%
Cedar Ridge	Wisconsin Power & Light Co	Eden, WI	175 GWh	Nov 2008	Dec 2024	Wind
Hawkeye Wind Farm	Greenbacker Renewable Energy Corporation	Sumner, IA	173 GWh	Sep 2012	Dec 2024	Wind
Georgia-Pacific Corp - Nekoosa Mill	Domtar Industries Inc	Nekoosa, WI	173 GWh	Dec 1911	Feb 2026	Black Liquor : 43.0% Natural Gas : 42.3% Water : 14.7%
Syl Laskin	ALLETE, Inc.	Hoyt Lakes, MN	172 GWh	May 1953	Dec 2024	Natural Gas
Langdon Wind II LLC	FPL Energy Langdon Wind LLC	Osnabrock, ND	171 GWh	Aug 2008	Dec 2024	Wind
A.J. Mihm Generating Station	Upper Michigan Energy Resources Company	Pelkie, MI	170 GWh	Feb 2019	Dec 2024	Natural Gas
Covanta Hennepin Energy	Covanta Energy Co	Minneapolis, MN	170 GWh	Sep 1989	Feb 2026	Non-biogenic Municipal Solid Waste : 54.5% Biogenic Municipal Solid Waste : 44.6% Natural Gas : 0.8%
Cerro Gordo Wind Farm	Cerro Gordo Wind Farm	Union, IA	168 GWh	Jul 2020	Feb 2026	Wind
Univ Minnesota CHP Plant	University of Minnesota Central Utilities	Minneapolis, MN	166 GWh	Oct 2017	Dec 2024	Natural Gas : 99.9%
Sunflower County	Sunflower County Solar Project, LLC	Ruleville, MS	166 GWh	Aug 2022	Feb 2026	Solar
Assembly Solar III	Assembly Solar III, LLC	Lennon, MI	166 GWh	Dec 2021	Feb 2026	Solar
Bison I Wind Energy Center	ALLETE, Inc.	New Salem, ND	166 GWh	Nov 2010	Dec 2024	Wind
Otsego Mill Power Plant	Otsego Paper Inc	Otsego, MI	165 GWh	Oct 1995	Dec 2024	Natural Gas
Grayling Generating Station	NorthStar Clean Energy	Grayling, MI	165 GWh	Apr 1992	Dec 2024	Wood/Wood Waste Solids : 99.8%
Marquette Energy Center	City of Marquette - (MI)	Marquette, MI	162 GWh	Jul 2017	Dec 2024	Natural Gas : 99.2% Distillate Fuel Oil : 0.8%
Bay Front	Northern States Power Co - Minnesota	Ashland, WI	160 GWh	Dec 1948	Dec 2024	Wood/Wood Waste Solids : 95.3% Tire-derived Fuels : 4.1% Natural Gas : 0.6%

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