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	Mar 2026
Annual Generation	659.4 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 \| 36.2% Coal \| 28.4% Wind \| 14.7% Nuclear \| 13.9% Solar \| 4.8% Water \| 1.5% 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
Alliant SBD 9107 JBS USA	Industrial Energy Applications Inc	Marshalltown, IA	62 MWh	Jul 1992	Dec 2025	Distillate Fuel Oil
Hendricks Regional Health	Hendricks Regional Health	Danville, IN	17 MWh	Aug 1992	Dec 2025	Distillate Fuel Oil
MMSD Jones Island Wastewater	Milwaukee Metro Sewerage Dist	Milwaukee, WI	80 GWh	Dec 1970	Dec 2025	Natural Gas : 80.4% Landfill Gas : 18.4% Distillate Fuel Oil : 1.2%
Pine Tree Acres	NextEra Renewable Fuels, LLC	Lenox Twp, MI	60 GWh	May 1998	Dec 2025	Landfill Gas
Westlake Plaquemine	Westlake Chemicals & Vinyls LLC	Plaquemine, LA	1 TWh	Apr 1997	Dec 2025	Natural Gas : 98.5% Other Gas : 1.5%
Heat Recovery Coke Facility	Cokenergy Inc	East Chicago, IN	419 GWh	Mar 1998	Dec 2025	Waste Heat
Pine Bluff Energy Center	Pine Bluff Energy LLC	Pine Bluff, AR	1 TWh	Jul 2001	Dec 2025	Natural Gas
Zeeland Generating Station	Consumers Energy Co - (MI)	Zeeland, MI	5 TWh	May 2001	Dec 2025	Natural Gas
Dearborn Industrial Generation	Dearborn Industrial Gen Inc	Dearborn, MI	4 TWh	May 1999	Dec 2025	Natural Gas : 90.7% Blast Furnace Gas : 9.3%
Taft Cogeneration Facility	Occidental Chemical Corporation	Hahnville, LA	6 TWh	Jun 2002	Dec 2025	Natural Gas : 98.8% Other Gas : 1.2%
RS Cogen	Westlake 2 US LLC	Lake Charles, LA	3 TWh	Nov 2002	Dec 2025	Natural Gas
Thomson Reuters Campus Bldg A-D	Thomson Corp	Eagan, MN	41 MWh	Mar 1999	Dec 2025	Distillate Fuel Oil
Acadia Energy Center	Cleco Power LLC	Eunice, LA	6 TWh	Jun 2002	Dec 2025	Natural Gas
Hinds Energy Facility	Entergy Mississippi LLC	Jackson, MS	2 TWh	Apr 2001	Dec 2025	Natural Gas
Attala	Entergy Mississippi LLC	Sallis, MS	2 TWh	Feb 2001	Dec 2025	Natural Gas
Montpelier Electric Generating Station	Kimura Power LLC	Poneto, IN	142 GWh	May 2001	Dec 2025	Natural Gas
Whiting Clean Energy	BP Alternative Energy	Whiting, IN	3 TWh	Mar 2002	Dec 2025	Natural Gas
Jackson Generating Station	Consumers Energy Co - (MI)	Jackson, MI	2 TWh	Jun 2002	Dec 2025	Natural Gas
Holland Energy Facility	NAES Corporation - (WA)	Beecher City, IL	2 TWh	Aug 2002	Dec 2025	Natural Gas
Jack Fusco Energy Center	Brazos Valley Energy	Thompsons, TX	4 TWh	Apr 2003	Dec 2025	Natural Gas
Cottonwood Energy Company LP	NRG Cottonwood Tenant LLC	Deweyville, TX	5 TWh	Jun 2003	Dec 2025	Natural Gas
Sugar Creek Power	Northern Indiana Pub Serv Co	West Terre Haute, IN	4 TWh	May 2002	Dec 2025	Natural Gas
Union Power Station	Entergy Arkansas LLC	El Dorado, AR	10 TWh	Dec 2002	Dec 2025	Natural Gas
RockGen Energy Center	Dairyland Power Coop	Cambridge, WI	496 GWh	May 2001	Dec 2025	Natural Gas : 99.1% Distillate Fuel Oil : 0.9%
Renaissance Power Plant	DTE Electric Company	Carson City, MI	1 TWh	Feb 2002	Dec 2025	Natural Gas
Carville Energy LLC	Carville Energy LLC	St Gabriel, LA	3 TWh	May 2003	Dec 2025	Natural Gas
Hot Spring Generating Facility	Entergy Arkansas LLC	Malvern, AR	3 TWh	May 2002	Dec 2025	Natural Gas
Plaquemine Cogeneration Plant	Dow Chemical Co	Plaquemine, LA	6 TWh	Feb 2004	Dec 2025	Natural Gas : 97.5% Other Gas : 2.5%
Bayou Cove Peaking Power	Bayou Cove, LLC	Jennings, LA	152 GWh	Jun 2002	Dec 2025	Natural Gas
Ouachita	Entergy Louisiana LLC	Sterlington, LA	4 TWh	Jul 2002	Dec 2025	Natural Gas
Washington Parish Energy Center	Entergy Louisiana LLC	Bogalusa, LA	411 GWh	Oct 2020	Dec 2025	Natural Gas
Perryville Power Station	Entergy Louisiana LLC	Sterlington, LA	4 TWh	May 2001	Dec 2025	Natural Gas
Riverside Energy Center	Wisconsin Power & Light Co	Beloit, WI	3 TWh	May 2004	Dec 2025	Natural Gas
Magnet Cove	Arkansas Electric Coop Corp	Malvern, AR	4 TWh	Jun 2005	Dec 2025	Natural Gas
Montfort Wind Energy Center	Wisconsin Electric Power Co	Montfort, WI	55 GWh	May 2002	Dec 2025	Wind
MNDOT Standby Generation	State of Minnesota Department of Administration	St. Paul, MN	43 MWh	Jun 1995	Dec 2025	Distillate Fuel Oil
Prairie State Generating Station	Prairie State Generating Co LLC	Marissa, IL	12 TWh	May 2012	Dec 2025	Bituminous Coal : 99.8%
Hancock County Wind Energy Center	FPL Energy Hancock County Wind, LLC	Garner, IA	255 GWh	Nov 2002	Dec 2025	Wind
Fox Energy Center	Wisconsin Public Service Corp	Wrightstown, WI	4 TWh	May 2005	Dec 2025	Natural Gas
Elm Road Generating Station	Wisconsin Electric Power Co	Oak Creek, WI	7 TWh	Jan 2010	Dec 2025	Subbituminous Coal : 78.4% Bituminous Coal : 18.7% Natural Gas : 2.9%
Diesel Generators	Madison Gas & Electric Co	Madison, WI	861 MWh	May 2001	Dec 2025	Distillate Fuel Oil
Central Michigan University	Central Michigan University	Mt. Pleasant, MI	30 GWh	Nov 1987	Dec 2025	Natural Gas
Cannon Falls Energy Center	Invenergy Services LLC	Cannon Falls, MN	809 GWh	Mar 2008	Dec 2025	Natural Gas
Kindred School	Kindred Public School	Kindred, ND	152 MWh	Sep 2001	Dec 2025	Distillate Fuel Oil
Valley Queen Cheese	Valley Queen Cheese Factory, Inc.	Milbank, SD	12 MWh	Mar 2002	Dec 2025	Distillate Fuel Oil
Blue Sky Green Field Wind Project	Wisconsin Electric Power Co	Fond du Lac, WI	335 GWh	Apr 2008	Dec 2025	Wind
Pomeroy Wind Farm	MidAmerican Energy Co	Fonda, IA	1 TWh	Nov 2007	Dec 2025	Wind
Fenton Wind Farm	EDF Renewable Asset Holdings, Inc.	Chandler, MN	388 GWh	Aug 2007	Dec 2025	Wind
Butler Ridge	Butler Ridge Wind Energy Center	Mayville, WI	142 GWh	Jan 2009	Dec 2025	Wind
Tatanka Wind Power LLC	Acciona Wind Energy USA LLC	Ashley, ND	476 GWh	Dec 2007	Dec 2025	Wind
Spiritwood Station	Great River Energy	Spiritwood, ND	186 GWh	Oct 2014	Dec 2025	Natural Gas : 51.7% Refined Coal : 48.3%
Buffalo Ridge I LLC	Avangrid Power LLC	Elkton, SD	106 GWh	Mar 2009	Dec 2025	Wind
Pioneer Prairie Wind Farm	Pioneer Prairie Wind Farm I, LLC	McIntire, IA	859 GWh	Sep 2008	Dec 2025	Wind
Osceola Windpower II	Osceola Windpower II	Harris, IA	200 GWh	Aug 2008	Dec 2025	Wind
FPL Energy Crystal Lake Wind LLC	FPL Energy Crystal Lake Wind LLC	Britt, IA	585 GWh	Nov 2008	Dec 2025	Wind
FPL Energy Story Wind LLC	FPL Energy Story Wind LLC	Zearing, IA	538 GWh	Nov 2008	Dec 2025	Wind
FPL Energy Crystal Lake Wind II LLC	FPL Energy Crystal Lake Wind II LLC	Britt, IA	722 GWh	Dec 2008	Dec 2025	Wind
Forward Wind Energy Center	Wisconsin Public Service Corp	Brownsville, WI	135 GWh	Jun 2008	Dec 2025	Wind
Nobles Wind Project	Northern States Power Co - Minnesota	Reading, MN	823 GWh	Nov 2010	Dec 2025	Wind
Merricourt Wind Energy Center	Otter Tail Power Co	Kulm, ND	584 GWh	Nov 2020	Dec 2025	Wind
Granite City Works	United States Steel Granite City Works	Granite City, IL	448 GWh	May 2010	Dec 2025	Natural Gas : 50.8% Purchased Steam : 49.2%
Quilt Block Wind Farm LLC	Quilt Block Wind Farm LLC	Darlington, WI	381 GWh	Aug 2017	Dec 2025	Wind
Glacier Hills	Wisconsin Electric Power Co	Cambria, WI	369 GWh	Nov 2011	Dec 2025	Wind
OREG 3 Inc	Ormat Nevada Inc	Trimont, MN	43 GWh	Jul 2010	Dec 2025	Waste Heat
Lakefield Wind Project LLC	EDF Renewable Asset Holdings, Inc.	Lakefield, MN	374 GWh	Sep 2011	Dec 2025	Wind
Smithland Hydroelectric Plant	American Mun Power-Ohio, Inc	Smithland, KY	336 GWh	Jun 2017	Dec 2025	Water
Gratiot Wind Park	DTE Electric Company	Breckenridge, MI	235 GWh	Oct 2011	Dec 2025	Wind
Buffalo Ridge II LLC	Avangrid Power LLC	Elkton, SD	479 GWh	Nov 2010	Dec 2025	Wind
Pine Tree Acres WM LFGTE	WM Renewable Energy LLC	Lenox, MI	88 GWh	Feb 2012	Dec 2025	Landfill Gas
Crystal Lake 3 LLC	Crystal Lake 3 LLC	Britt, IA	237 GWh	Nov 2009	Dec 2025	Wind
Garden Wind LLC	Garden Wind LLC	Zearing, IA	375 GWh	Nov 2009	Dec 2025	Wind
Rolling Hills Wind Farm	MidAmerican Energy Co	Massena, IA	2 TWh	Nov 2011	Dec 2025	Wind
Prairie Rose Wind Farm	Enel Green Power NA, Inc.	Hardwick, MN	460 GWh	Nov 2012	Dec 2025	Wind
Wabash Valley Power IGCC	Wabash Valley Power Assn, Inc	Terre Haute, IN	354 GWh	Nov 1953	Dec 2025	Natural Gas
Sigel Wind Park	DTE Electric Company	Harbor Beach, MI	253 GWh	Nov 2012	Dec 2025	Wind
Minden Wind Park	DTE Electric Company	Minden City, MI	112 GWh	Nov 2012	Dec 2025	Wind
McKinley Wind Park	DTE Electric Company	Pigeon, MI	52 GWh	Nov 2012	Dec 2025	Wind
Eclipse Wind Farm	MidAmerican Energy Co	Adair, IA	832 GWh	Aug 2012	Dec 2025	Wind
Lake Charles Polymers	Equistar Chemicals LP	Westlake, LA	196 GWh	Aug 2011	Dec 2025	Natural Gas
SIUC	Southern Illinois University Carbondale	Carbondale, IL	9 GWh	May 1998	Dec 2025	Bituminous Coal
ADA Carbon Solutions Red River	ADA Carbon Solutions (Red River), LLC	Coushatta, LA	101 GWh	Jan 2011	Dec 2025	Waste Heat
MSC Sebewaing	Michigan Sugar Company	Sebewaing, MI	572 MWh	Sep 1979	Dec 2025	Bituminous Coal : 67.1% Natural Gas : 32.9%
Roquette America	Roquette America	Keokuk, IA	207 GWh	Jun 2004	Dec 2025	Natural Gas
California Ridge Wind Energy LLC	SunEdison LLC	Fithian, IL	653 GWh	Nov 2012	Dec 2025	Wind
SABIC Innovative Plastics Mt. Vernon	SABIC IP Mt. Vernon, LLC	Mount Vernon, IN	478 GWh	May 1996	Dec 2025	Natural Gas
PCA, Filer City Mill	PCA, Filer City Mill	Filer City, MI	90 GWh	Dec 1949	Dec 2025	Natural Gas
Echo Wind Park	DTE Electric Company	Elkton, MI	575 GWh	Dec 2013	Dec 2025	Wind
Otter Creek Ethanol Poet - Ashton	Otter Creek Ethanol LLC - Poet Ashton	Ashton, IA	45 GWh	Feb 2004	Dec 2025	Natural Gas
POET Biorefining Lake Crystal	POET Biorefining Lake Crystal	Lake Crystal, MN	6 GWh	Mar 2005	Dec 2025	Natural Gas : 82.6% Distillate Fuel Oil : 17.4%
Marshalltown Generating Station	Interstate Power and Light Co	Marshalltown, IA	3 TWh	Mar 2017	Dec 2025	Natural Gas : 99.9%
NCAH Central Utility Plant	National Centers for Animal Health	Ames, IA	983 MWh	May 1996	Dec 2025	Natural Gas : 91.0% Distillate Fuel Oil : 9.0%
Tuscola Bay Wind	Tuscola Bay Wind LLC	Reese, MI	365 GWh	Nov 2012	Dec 2025	Wind
LSU Cogen	LSU and A&M College	Baton Rouge, LA	45 GWh	Nov 2004	Dec 2025	Natural Gas
Red Rock Hydro Plant	Western Minnesota Mun Pwr Agny	Pella, IA	179 GWh	Apr 2021	Dec 2025	Water
Indy Solar I, LLC	Onward Energy	Indianapolis, IN	16 GWh	Nov 2013	Dec 2025	Solar
Indy Solar III, LLC	Onward Energy	Indianapolis, IN	13 GWh	Nov 2013	Dec 2025	Solar
Indy Solar II, LLC	Onward Energy	Indianapolis, IN	15 GWh	Nov 2013	Dec 2025	Solar
Pheasant Run Wind LLC	Pheasant Run Wind LLC	Pigeon, MI	256 GWh	Nov 2013	Dec 2025	Wind
Tuscola Wind II LLC	Tuscola Wind II LLC	Reese, MI	300 GWh	Oct 2013	Dec 2025	Wind
RC Thomas Hydroelectric Project	East Texas Electric Coop, Inc	Livingston, TX	124 GWh	Jun 2020	Dec 2025	Water

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#60	Alcoa Power Generating, Inc. - Yadkin Division	610.0 GWh	4
#27	Associated Electric Cooperative, Inc.	24.1 TWh	47
#13	Duke Energy Carolinas	112.4 TWh	565
#52	Duke Energy Progress West	4.3 TWh	10
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.3 TWh	25
#1	PJM Interconnection, LLC	879.0 TWh	2,465
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#5	Southwest Power Pool	300.1 TWh	835
#51	Southwestern Power Administration	4.8 TWh	34
#9	Tennessee Valley Authority	162.4 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	879.0 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	659.4 TWh	2,831
#3	Electric Reliability Council of Texas, Inc.	484.9 TWh	1,313
#5	Southwest Power Pool	300.1 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	179.9 TWh	2,075
#9	Tennessee Valley Authority	162.4 TWh	204
#10	Florida Power & Light Co.	150.5 TWh	187
#12	New York Independent System Operator	134.0 TWh	1,211
#13	Duke Energy Carolinas	112.4 TWh	565