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	Oct 2026
Annual Generation	678.0 TWh
Power Plants	3,095
Utilities	1,372
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 \| 37.1% Coal \| 26.2% Wind \| 15% Nuclear \| 13.8% Solar \| 6% Water \| 1.4% Other Fuel \| 0.6%

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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
Cottonwood Energy Company LP	Cottonwood Energy Company LP	Deweyville, TX	5 TWh	Jun 2003	Jul 2026	Natural Gas
Sugar Creek Power	Northern Indiana Pub Serv Co	West Terre Haute, IN	4 TWh	May 2002	Jul 2026	Natural Gas
Union Power Station	Entergy Arkansas LLC	El Dorado, AR	13 TWh	Dec 2002	Jul 2026	Natural Gas
RockGen Energy Center	Dairyland Power Coop	Cambridge, WI	619 GWh	May 2001	Jul 2026	Natural Gas : 98.4% Distillate Fuel Oil : 1.6%
Renaissance Power Plant	DTE Electric Company	Carson City, MI	1 TWh	Feb 2002	Jul 2026	Natural Gas
Carville Energy LLC	Carville Energy LLC	St Gabriel, LA	3 TWh	May 2003	Jul 2026	Natural Gas
Plaquemine Cogeneration Plant	Dow Chemical Co	Plaquemine, LA	6 TWh	Feb 2004	Jul 2026	Natural Gas : 97.3% Other Gas : 2.7%
Bayou Cove Peaking Power	Bayou Cove Peaking Power, LLC	Jennings, LA	131 GWh	Jun 2002	Jul 2026	Natural Gas
Ouachita	Entergy Louisiana LLC	Sterlington, LA	4 TWh	Jul 2002	Jul 2026	Natural Gas
Washington Parish Energy Center	Entergy Louisiana LLC	Bogalusa, LA	290 GWh	Oct 2020	Jul 2026	Natural Gas
GRS Arbor Hills	Gas Recovery Systems Inc	Northville, MI	1 GWh	May 1996	Jul 2026	Landfill Gas
Perryville Power Station	Entergy Louisiana LLC	Sterlington, LA	4 TWh	May 2001	Jul 2026	Natural Gas
Riverside Energy Center	Wisconsin Power & Light Co	Beloit, WI	3 TWh	May 2004	Jul 2026	Natural Gas
Magnet Cove	Arkansas Electric Coop Corp	Malvern, AR	4 TWh	Jun 2005	Jul 2026	Natural Gas
Montfort Wind Energy Center	Wisconsin Electric Power Co	Montfort, WI	50 GWh	May 2002	Jul 2026	Wind
MNDOT Standby Generation	State of Minnesota Department of Administration	St. Paul, MN	47 MWh	Jun 1995	Jul 2026	Distillate Fuel Oil
Prairie State Generating Station	Prairie State Generating Co LLC	Marissa, IL	12 TWh	May 2012	Jul 2026	Bituminous Coal : 99.8%
Hancock County Wind Energy Center	FPL Energy Hancock County Wind, LLC	Garner, IA	250 GWh	Nov 2002	Jul 2026	Wind
Fox Energy Center	Wisconsin Public Service Corp	Wrightstown, WI	4 TWh	May 2005	Jul 2026	Natural Gas
Elm Road Generating Station	Wisconsin Electric Power Co	Oak Creek, WI	8 TWh	Jan 2010	Jul 2026	Subbituminous Coal : 88.7% Bituminous Coal : 7.8% Natural Gas : 3.5%
Diesel Generators	Madison Gas & Electric Co	Madison, WI	1 GWh	May 2001	Jul 2026	Distillate Fuel Oil
Central Michigan University	Central Michigan University	Mt. Pleasant, MI	28 GWh	Nov 1987	Jul 2026	Natural Gas
Cannon Falls Energy Center	Invenergy Services LLC	Cannon Falls, MN	807 GWh	Mar 2008	Jul 2026	Natural Gas : 99.0% Distillate Fuel Oil : 1.0%
Trigen St. Louis	Centerstream STL, LLC	St Louis, MO	7 GWh	May 1999	Jul 2026	Natural Gas
Blue Sky Green Field Wind Project	Wisconsin Electric Power Co	Fond du Lac, WI	317 GWh	Apr 2008	Jul 2026	Wind
Plum Point Energy Station	NRG Energy Services - Plum Point	Osceola, AR	3 TWh	Aug 2010	Jul 2026	Subbituminous Coal : 99.7%
Pomeroy Wind Farm	MidAmerican Energy Co	Fonda, IA	961 GWh	Nov 2007	Jul 2026	Wind
Fenton Wind Farm	EDF Renewable Asset Holdings, Inc.	Chandler, MN	380 GWh	Aug 2007	Jul 2026	Wind
Butler Ridge	Butler Ridge Wind Energy Center	Mayville, WI	137 GWh	Jan 2009	Jul 2026	Wind
Tatanka Wind Power LLC	Acciona Wind Energy USA LLC	Ashley, ND	427 GWh	Dec 2007	Jul 2026	Wind
Spiritwood Station	Great River Energy	Spiritwood, ND	263 GWh	Oct 2014	Jul 2026	Natural Gas : 60.6% Refined Coal : 39.4%
Buffalo Ridge I LLC	Avangrid Power LLC	Elkton, SD	97 GWh	Mar 2009	Jul 2026	Wind
Pioneer Prairie Wind Farm	Pioneer Prairie Wind Farm I, LLC	McIntire, IA	838 GWh	Sep 2008	Jul 2026	Wind
Osceola Windpower II	Osceola Windpower II	Harris, IA	191 GWh	Aug 2008	Jul 2026	Wind
FPL Energy Crystal Lake Wind LLC	FPL Energy Crystal Lake Wind LLC	Britt, IA	579 GWh	Nov 2008	Jul 2026	Wind
FPL Energy Story Wind LLC	FPL Energy Story Wind LLC	Zearing, IA	566 GWh	Nov 2008	Jul 2026	Wind
FPL Energy Crystal Lake Wind II LLC	FPL Energy Crystal Lake Wind II LLC	Britt, IA	703 GWh	Dec 2008	Jul 2026	Wind
Forward Wind Energy Center	Wisconsin Public Service Corp	Brownsville, WI	121 GWh	Jun 2008	Jul 2026	Wind
Nobles Wind Project	Northern States Power Co - Minnesota	Reading, MN	780 GWh	Nov 2010	Jul 2026	Wind
Merricourt Wind Energy Center	Otter Tail Power Co	Kulm, ND	565 GWh	Nov 2020	Jul 2026	Wind
Granite City Works	United States Steel Granite City Works	Granite City, IL	448 GWh	May 2010	Jul 2026	Purchased Steam : 49.2% Natural Gas : 43.8% Blast Furnace Gas : 7.0%
Quilt Block Wind Farm LLC	Quilt Block Wind Farm LLC	Darlington, WI	369 GWh	Aug 2017	Jul 2026	Wind
Glacier Hills	Wisconsin Electric Power Co	Cambria, WI	331 GWh	Nov 2011	Jul 2026	Wind
OREG 3 Inc	Ormat Nevada Inc	Trimont, MN	43 GWh	Jul 2010	Jul 2026	Waste Heat
Lakefield Wind Project LLC	EDF Renewable Asset Holdings, Inc.	Lakefield, MN	396 GWh	Sep 2011	Jul 2026	Wind
Smithland Hydroelectric Plant	American Mun Power-Ohio, Inc	Smithland, KY	428 GWh	Jun 2017	Jul 2026	Water
Gratiot Wind Park	DTE Electric Company	Breckenridge, MI	214 GWh	Oct 2011	Jul 2026	Wind
Buffalo Ridge II LLC	Avangrid Power LLC	Elkton, SD	506 GWh	Nov 2010	Jul 2026	Wind
Pine Tree Acres WM LFGTE	WM Renewable Energy LLC	Lenox, MI	88 GWh	Feb 2012	Jul 2026	Landfill Gas
Crystal Lake 3 LLC	Crystal Lake 3 LLC	Britt, IA	232 GWh	Nov 2009	Jul 2026	Wind
Garden Wind LLC	Garden Wind LLC	Zearing, IA	322 GWh	Nov 2009	Jul 2026	Wind
Rolling Hills Wind Farm	MidAmerican Energy Co	Massena, IA	2 TWh	Nov 2011	Jul 2026	Wind
Prairie Rose Wind Farm	Prairie Rose Wind Farm	Hardwick, MN	457 GWh	Nov 2012	Jul 2026	Wind
Wabash Valley Power IGCC	Wabash Valley Power Assn, Inc	Terre Haute, IN	477 GWh	Nov 1953	Jul 2026	Natural Gas
Sigel Wind Park	DTE Electric Company	Harbor Beach, MI	246 GWh	Nov 2012	Jul 2026	Wind
Minden Wind Park	DTE Electric Company	Minden City, MI	109 GWh	Nov 2012	Jul 2026	Wind
McKinley Wind Park	DTE Electric Company	Pigeon, MI	52 GWh	Nov 2012	Jul 2026	Wind
Eclipse Wind Farm	MidAmerican Energy Co	Adair, IA	820 GWh	Aug 2012	Jul 2026	Wind
Lake Charles Polymers	Equistar Chemicals LP	Westlake, LA	200 GWh	Aug 2011	Jul 2026	Natural Gas
SIUC	Southern Illinois University Carbondale	Carbondale, IL	9 GWh	May 1998	Jul 2026	Bituminous Coal
Arq Solutions Red River	Arq Solutions (Red River), LLC	Coushatta, LA	105 GWh	Jan 2011	Jul 2026	Waste Heat
Roquette America	Roquette America	Keokuk, IA	222 GWh	Jun 2004	Jul 2026	Natural Gas
California Ridge Wind Energy LLC	SunEdison LLC	Fithian, IL	692 GWh	Nov 2012	Jul 2026	Wind
SABIC Innovative Plastics Mt. Vernon	SABIC IP Mt. Vernon, LLC	Mount Vernon, IN	584 GWh	May 1996	Jul 2026	Natural Gas
PCA, Filer City Mill	PCA, Filer City Mill	Filer City, MI	94 GWh	Dec 1949	Jul 2026	Natural Gas
Echo Wind Park	DTE Electric Company	Elkton, MI	564 GWh	Dec 2013	Jul 2026	Wind
Otter Creek Ethanol Poet - Ashton	Otter Creek Ethanol LLC - Poet Ashton	Ashton, IA	45 GWh	Feb 2004	Jul 2026	Natural Gas
POET Biorefining Lake Crystal	POET Biorefining Lake Crystal	Lake Crystal, MN	7 GWh	Mar 2005	Jul 2026	Natural Gas : 80.4% Distillate Fuel Oil : 19.6%
Marshalltown Generating Station	Interstate Power and Light Co	Marshalltown, IA	3 TWh	Mar 2017	Jul 2026	Natural Gas : 99.9%
NCAH Central Utility Plant	National Centers for Animal Health	Ames, IA	432 MWh	May 1996	Jul 2026	Natural Gas : 83.9% Distillate Fuel Oil : 16.1%
Tuscola Bay Wind	Tuscola Bay Wind LLC	Reese, MI	355 GWh	Nov 2012	Jul 2026	Wind
LSU Cogen	LSU and A&M College	Baton Rouge, LA	122 GWh	Nov 2004	Jul 2026	Natural Gas
Red Rock Hydro Plant	Western Minnesota Mun Pwr Agny	Pella, IA	202 GWh	Apr 2021	Jul 2026	Water
Indy Solar I, LLC	Onward Energy	Indianapolis, IN	15 GWh	Nov 2013	Jul 2026	Solar
Indy Solar III, LLC	Onward Energy	Indianapolis, IN	13 GWh	Nov 2013	Jul 2026	Solar
Indy Solar II, LLC	Onward Energy	Indianapolis, IN	15 GWh	Nov 2013	Jul 2026	Solar
Pheasant Run Wind LLC	Pheasant Run Wind LLC	Pigeon, MI	245 GWh	Nov 2013	Jul 2026	Wind
Tuscola Wind II LLC	Tuscola Wind II LLC	Reese, MI	293 GWh	Oct 2013	Jul 2026	Wind
RC Thomas Hydroelectric Project	East Texas Electric Coop, Inc	Livingston, TX	115 GWh	Jun 2020	Jul 2026	Water
Courtenay Wind Farm	Northern States Power Co - Minnesota	Courtenay, ND	122 GWh	Nov 2016	Jul 2026	Wind
Apple Blossom Wind Farm	Apple Blossom Wind, LLC	Pigeon, MI	248 GWh	Oct 2017	Jul 2026	Wind
Black Oak Wind Farm	Black Oak Wind, LLC	Sauk Centre, MN	309 GWh	Nov 2016	Jul 2026	Wind
Brookfield	DTE Electric Company	Pigeon, MI	245 GWh	Jan 2014	Jul 2026	Wind
Highland Wind Project (IA)	MidAmerican Energy Co	Primghar, IA	974 GWh	May 2015	Jul 2026	Wind
Sugar Creek Wind One LLC	Sugar Creek Wind One LLC	TBD, IL	579 GWh	Oct 2020	Jul 2026	Wind
Lincoln Land Wind	Lincoln Land Wind, LLC	TBD, IL	1 TWh	Oct 2021	Jul 2026	Wind
Zimmerman Energy	Landfill Energy Systems	Argos, IN	40 GWh	Oct 2014	Jul 2026	Landfill Gas
Waxdale	S.C. Johnson & Son, Inc.	Sturtevant, WI	37 GWh	Nov 2003	Jul 2026	Natural Gas : 45.0% Landfill Gas : 28.6% Wind : 18.0% Solar : 8.4%
Clinton LFGTE	Wabash Valley Power Assn, Inc	Clinton, IL	16 GWh	Jan 2006	Jul 2026	Landfill Gas
North Star Solar Project	North Star Solar PV LLC	North Branch, MN	176 GWh	Nov 2016	Jul 2026	Solar
Marshall Solar Energy Project	Marshall Solar Energy Project	Marshall, MN	97 GWh	Dec 2016	Jul 2026	Solar
Cardinal Point Wind	Cardinal Point LLC	Sciota, IL	525 GWh	Feb 2020	Jul 2026	Wind
New Frontier Wind	Meadowlark Wind I LLC	Ruso, ND	381 GWh	Nov 2018	Jul 2026	Wind
Domino Farms Solar	DTE Electric Company	Ann Arbor, MI	834 MWh	Aug 2015	Jul 2026	Solar
Greenwood Solar Farm	DTE Electric Company	Avoca, MI	2 GWh	Dec 2015	Jul 2026	Solar
Western Michigan Solar Gardens	Consumers Energy Co - (MI)	Kalamazoo, MI	2 GWh	Jul 2016	Jul 2026	Solar
Grand Valley Solar Gardens	Consumers Energy Co - (MI)	Allendale, MI	4 GWh	Mar 2016	Jul 2026	Solar
Sumrall II Solar Farm	Onward Energy	Sumrall, MS	108 GWh	Nov 2017	Jul 2026	Solar
Demille Solar Farm	DTE Electric Company	Lapeer, MI	37 GWh	Apr 2017	Jul 2026	Solar
Crowned Ridge Wind Energy Center	Crowned Ridge Wind, LLC	Watertown, SD	807 GWh	Nov 2019	Jul 2026	Wind

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	433.1 GWh	4
#26	Associated Electric Cooperative, Inc.	22.8 TWh	47
#13	Duke Energy Carolinas	113.6 TWh	578
#50	Duke Energy Progress West	4.6 TWh	15
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.2 TWh	25
#1	PJM Interconnection, LLC	891.7 TWh	2,806
#6	Southern Company Services, Inc. - Trans	258.9 TWh	423
#5	Southwest Power Pool	314.8 TWh	876
#53	Southwestern Power Administration	3.6 TWh	37
#9	Tennessee Valley Authority	166.3 TWh	209

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	891.7 TWh	2,806
#2	Midcontinent Independent System Operator, Inc.	678.0 TWh	3,095
#3	Electric Reliability Council of Texas, Inc.	506.6 TWh	1,487
#5	Southwest Power Pool	314.8 TWh	876
#6	Southern Company Services, Inc. - Trans	258.9 TWh	423
#7	California Independent System Operator	167.6 TWh	2,170
#9	Tennessee Valley Authority	166.3 TWh	209
#10	Florida Power & Light Co.	152.8 TWh	188
#12	New York Independent System Operator	134.2 TWh	1,334
#13	Duke Energy Carolinas	113.6 TWh	578