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
Lost Lakes Wind Farm LLC	Lost Lakes Wind Farm LLC	Lake Park, IA	244 GWh	Nov 2009	Dec 2024	Wind
Winfield Solar	Winfield Solar I, LLC	Winfield, MO	243 GWh	-	Mar 2026	Solar
Ragsdale Solar LLC	Ragsdale Solar, LLC	Canton, MS	241 GWh	Oct 2024	Mar 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%
Consumer Operations LLC	Georgia-Pacific Consumer Oper. Green Bay LLC	Green Bay, WI	235 GWh	Dec 1953	Mar 2026	Natural Gas
Courtenay Wind Farm	Northern States Power Co - Minnesota	Courtenay, ND	235 GWh	Nov 2016	Mar 2026	Wind
Prairie Mist Solar	Prairie Mist Solar Project, LLC	Montrose, AR	234 GWh	Aug 2024	Mar 2026	Solar
University of Michigan	University of Michigan	Ann Arbor, MI	234 GWh	Dec 1974	Mar 2026	Natural Gas
Sebree Solar, LLC - Hybrid	Sebree Solar, LLC	Robards, KY	233 GWh	-	Mar 2026	Solar
Badger Wind, LLC	Badger Wind , LLC	Northwest McIntosh, ND	232 GWh	-	Mar 2026	Wind
Dressor Plains Solar, LLC	Dressor Plains Solar, LLC	Herrick, IL	231 GWh	Aug 2021	Mar 2026	Solar
Gratiot County Wind LLC	Invenergy Services LLC	Breckenridge, MI	228 GWh	Apr 2012	Dec 2024	Wind
Paris (WI)	Wisconsin Electric Power Co	Union Grove, WI	227 GWh	Feb 1995	Dec 2024	Natural Gas
Assembly Solar II LLC	Assembly Solar II LLC	Lennon, MI	227 GWh	Nov 2021	Mar 2026	Solar
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	224 GWh	Oct 2024	Mar 2026	Solar
Crystal Lake 3 LLC	Crystal Lake 3 LLC	Britt, IA	224 GWh	Nov 2009	Mar 2026	Wind
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	223 GWh	Jun 2021	Mar 2026	Solar
Gibson Solar	Gibson Solar, LLC	Princeton, IN	222 GWh	-	Mar 2026	Solar
Appleseed Solar	Appleseed Solar, LLC	Logansport, IN	222 GWh	-	Mar 2026	Solar
International Paper Vicksburg Mill	International Paper Co-Vicksbg	Vicksburg, MS	221 GWh	Dec 1966	Mar 2026	Black Liquor : 54.0% Natural Gas : 29.0% Wood/Wood Waste Solids : 17.0%
Sauk Solar Park	DTE Electric Company	Union City, MI	221 GWh	-	Mar 2026	Solar
Bison 2 Wind Energy Center	ALLETE, Inc.	New Salem, ND	219 GWh	Nov 2012	Dec 2024	Wind
Chicot Solar	Chicot Solar, LLC	Lake Village, AR	217 GWh	Aug 2020	Mar 2026	Solar
Roquette America	Roquette America	Keokuk, IA	216 GWh	Jun 2004	Mar 2026	Natural Gas
Happy Solar 1	Lightsource Renewable Energy Asset Management, LLC	Searcy, AR	214 GWh	Sep 2023	Mar 2026	Solar
Gratiot Wind Park	DTE Electric Company	Breckenridge, MI	211 GWh	Oct 2011	Mar 2026	Wind
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%
Amite Solar, LLC	Amite Solar, LLC	Roseland, LA	210 GWh	-	Mar 2026	Solar
Badger Hollow II	Wisconsin Electric Power Co	Cobb, WI	210 GWh	Nov 2023	Mar 2026	Solar
Crossett Solar	Cubico USA, LLC	Crossett, AR	209 GWh	Aug 2024	Mar 2026	Solar
Atlantic Alumina, Gramercy Operations	Atalco Gramercy LLC	Gramercy, LA	208 GWh	Jan 1958	Dec 2024	Natural Gas
Red Rock Hydro Plant	Western Minnesota Mun Pwr Agny	Pella, IA	207 GWh	Apr 2021	Mar 2026	Water
Walnut Bend Solar Station PV	Walnut Bend Solar Station	Moro, AR	206 GWh	Aug 2024	Mar 2026	Solar
Holliday Creek Solar	MidAmerican Energy Co	Fort Dodge, IA	206 GWh	Jun 2022	Mar 2026	Solar
Elm Creek Wind II LLC	Avangrid Power LLC	Trimont, MN	205 GWh	Nov 2010	Dec 2024	Wind
MU Combined Heat and Power Plant	Curators of the University of Missouri	Columbia, MO	204 GWh	Jun 1961	Mar 2026	Natural Gas : 77.1% Wood/Wood Waste Solids : 20.5% Bituminous Coal : 2.4%
Springfield Solar (WI)	Wisconsin Power & Light Co	Lomira, WI	203 GWh	Nov 2023	Mar 2026	Solar
Independence Wind Farm	Independence Wind Energy LLC	Manchester, IA	203 GWh	Nov 2021	Mar 2026	Wind
Spiritwood Station	Great River Energy	Spiritwood, ND	202 GWh	Oct 2014	Mar 2026	Natural Gas : 56.4% Refined Coal : 43.6%
Harvest 2	Harvest II Windfarm, LLC	Elkton, MI	202 GWh	Oct 2012	Dec 2024	Wind
Badger Hollow I	Wisconsin Public Service Corp	Montfort, WI	201 GWh	Oct 2021	Mar 2026	Solar
St. Mary Clean Energy Center	Cleco Power LLC	Centerville, LA	201 GWh	Jul 2019	Dec 2024	Waste Heat
Point Beach Solar	Point Beach Solar	Two Creeks, WI	201 GWh	Aug 2021	Mar 2026	Solar
Shelby Energy County	Shelby County Energy Center, LLC	Neoga, IL	201 GWh	May 2000	Dec 2024	Natural Gas
Wapello Solar LLC	Wapello Solar LLC	Wapello, IA	200 GWh	Feb 2021	Mar 2026	Solar
Wilton Wind II LLC	Wilton Wind II LLC	Wilton, ND	200 GWh	Oct 2009	Dec 2024	Wind
Montpelier Electric Generating Station	Kimura Power LLC	Poneto, IN	200 GWh	May 2001	Mar 2026	Natural Gas : 99.0% Distillate Fuel Oil : 1.0%
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
Cereal City Solar, LLC	Cereal City Solar, LLC	Battle Creek, MI	197 GWh	Nov 2023	Mar 2026	Solar
Shenandoah Hills Wind Farm	MidAmerican Energy Co	Blanchard, IA	197 GWh	-	Mar 2026	Wind
Wildflower Solar, LLC (MS)	Duke Energy Renewables Services	DeSoto, MS	196 GWh	Apr 2024	Mar 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
Hardin County Peaking Facility	Entergy Texas Inc.	Kountze, TX	195 GWh	Jun 2001	Dec 2024	Natural Gas
Lake Charles Polymers	Equistar Chemicals LP	Westlake, LA	193 GWh	Aug 2011	Mar 2026	Natural Gas
Alpena Cement Plant	Lafarge Corp	Alpena, MI	193 GWh	Dec 1951	Mar 2026	Petroleum Coke : 85.7% Natural Gas : 14.3%
Osceola Windpower II	Osceola Windpower II	Harris, IA	192 GWh	Aug 2008	Mar 2026	Wind
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
FPL Energy Burleigh County Wind	FPL Energy Burleigh County Wind LLC	Wilton, ND	190 GWh	Nov 2005	Dec 2024	Wind
Two Creeks Solar	Wisconsin Public Service Corp	Two Rivers, WI	189 GWh	Oct 2020	Mar 2026	Solar
Wautoma Solar	Wisconsin Power & Light Co	Wautoma, WI	188 GWh	Nov 2023	Mar 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	187 GWh	Apr 2020	Mar 2026	Natural Gas
Harvest Gold Solar	Harvest Gold Solar Power, LLC	Indianola, MS	187 GWh	Jul 2024	Mar 2026	Solar
Fairbanks Wind Park	DTE Electric Company	Garden, MI	187 GWh	Dec 2021	Mar 2026	Wind
Woodruff County Solar	Arkansas Electric Coop Corp	Augusta, AR	186 GWh	Sep 2024	Mar 2026	Solar
Searcy Solar Hybrid	Searcy Solar, LLC	Searcy, AR	183 GWh	Dec 2021	Mar 2026	Solar
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	Mar 2026	Solar
Elk Wind Farm	Greenbacker Renewable Energy Corporation	Greeley, IA	178 GWh	Nov 2011	Dec 2024	Wind
Manitowoc	Manitowoc Public Utilities	Manitowoc, WI	178 GWh	May 1955	Mar 2026	Wood/Wood Waste Solids : 91.1% Petroleum Coke : 4.9% Bituminous Coal : 3.6%
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
Syl Laskin	ALLETE, Inc.	Hoyt Lakes, MN	172 GWh	May 1953	Dec 2024	Natural Gas
Georgia-Pacific Corp - Nekoosa Mill	Domtar Industries Inc	Nekoosa, WI	171 GWh	Dec 1911	Mar 2026	Natural Gas : 42.9% Black Liquor : 42.4% Water : 14.7%
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	Mar 2026	Non-biogenic Municipal Solid Waste : 54.5% Biogenic Municipal Solid Waste : 44.6% Natural Gas : 0.9%
Univ Minnesota CHP Plant	University of Minnesota Central Utilities	Minneapolis, MN	166 GWh	Oct 2017	Dec 2024	Natural Gas : 99.9%
Cerro Gordo Wind Farm	Cerro Gordo Wind Farm	Union, IA	166 GWh	Jul 2020	Mar 2026	Wind
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%
Sunflower County	Sunflower County Solar Project, LLC	Ruleville, MS	164 GWh	Aug 2022	Mar 2026	Solar
Assembly Solar III	Assembly Solar III, LLC	Lennon, MI	164 GWh	Dec 2021	Mar 2026	Solar
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%
Blakely Mountain	USCE -Vickburg District	Royal, AR	158 GWh	Aug 1955	Dec 2024	Water
Ada Cogeneration LP	Ada Cogeneration LLC	Ada, MI	158 GWh	Sep 1990	Dec 2024	Natural Gas
Michigan Wind 1	Michigan Wind 1, LLC	Ubly, MI	158 GWh	Nov 2008	Dec 2024	Wind
Saint Marys Falls	USACE-Detroit District	Sault Ste. Marie, MI	155 GWh	Jun 1932	Dec 2024	Water

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