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
Assembly Solar II LLC	Assembly Solar II LLC	Lennon, MI	226 GWh	Nov 2021	Dec 2025	Solar
Assembly Solar Project	Assembly Solar I, LLC	Venice Township, MI	100 GWh	Nov 2020	Dec 2025	Solar
Odin Wind Farm LLC	Aspenall Energies (Delaware), LLC	Mountainlake, MN	29 GWh	Apr 2008	Dec 2024	Wind
Ashtabula Wind II LLC	Ashtabula Wind II LLC	Luverne, ND	328 GWh	Sep 2009	Dec 2024	Wind
Magnet Cove	Arkansas Electric Coop Corp	Malvern, AR	4 TWh	Jun 2005	Dec 2025	Natural Gas
Whillock	Arkansas Electric Coop Corp	Morrilton, AR	139 GWh	Sep 1993	Dec 2024	Water
McClellan (AR)	Arkansas Electric Coop Corp	Camden, AR	43 GWh	Apr 1972	Dec 2024	Natural Gas : 92.3% Distillate Fuel Oil : 7.7%
Harry L. Oswald	Arkansas Electric Coop Corp	Little Rock, AR	1 TWh	Jun 2002	Dec 2024	Natural Gas
Dam 2	Arkansas Electric Coop Corp	Dumas, AR	401 GWh	May 1999	Dec 2024	Water
Woodruff County Solar	Arkansas Electric Coop Corp	Augusta, AR	204 GWh	Sep 2024	Dec 2025	Solar
Aries Community Solar	Aries Community Solar	Claremont, MN	7 GWh	Sep 2017	Dec 2024	Solar
Argo Navis Community Solar	Argo Navis Community Solar	Scandia, MN	5 GWh	Feb 2018	Dec 2024	Solar
SCS American Bottoms 009885 Sauget, LLC	Arevon Energy, Inc.	Sauget, IL	2 GWh	Jul 2020	Dec 2024	Solar
SCS COUNTY 012631 Champaign, LLC	Arevon Energy, Inc.	Champaign, IL	4 GWh	Aug 2021	Dec 2024	Solar
SCS Galena 012589 Peoria, LLC	Arevon Energy, Inc.	Peoria, IL	4 GWh	Nov 2021	Dec 2024	Solar
SCS West Fairchild 011958 Danville, LLC	Arevon Energy, Inc.	Danville, IL	3 GWh	Jun 2021	Dec 2024	Solar
Northern Cardinal Solar SCS IL 1, LLC	Arevon Energy, Inc.	Champaign, IL	17 GWh	Jan 2021	Dec 2024	Solar
Archer Daniels Midland Decatur	Archer Daniels Midland Co	Decatur, IL	901 GWh	Mar 1987	Dec 2025	Bituminous Coal : 61.1% Subbituminous Coal : 38.6%
Archer Daniels Midland Cedar Rapids	Archer Daniels Midland Co	Cedar Rapids, IA	990 GWh	Oct 1988	Dec 2025	Subbituminous Coal : 60.4% Natural Gas : 24.6% Bituminous Coal : 15.0%
Archer Daniels Midland Mankato	Archer Daniels Midland Co	Mankato, MN	22 GWh	Sep 1987	Dec 2024	Natural Gas
Archer Daniels Midland Des Moines	Archer Daniels Midland Co	Des Moines, IA	2 GWh	Apr 1988	Dec 2024	Natural Gas
Archer Daniels Midland Clinton	Archer Daniels Midland Co	Clinton, IA	716 GWh	Jan 2009	Dec 2025	Subbituminous Coal : 88.3% Other Biomass Solids : 7.7% Bituminous Coal : 4.0%
Enter Solar	Arcadia Solar, LLC	Janesville, MN	2 GWh	Dec 2018	Dec 2024	Solar
Lange Solar	Arcadia Solar, LLC	Byron, MN	2 GWh	Aug 2019	Dec 2024	Solar
Appleseed Solar	Appleseed Solar, LLC	Logansport, IN	150 GWh	-	Dec 2025	Solar
Apple Blossom Wind Farm	Apple Blossom Wind, LLC	Pigeon, MI	256 GWh	Oct 2017	Dec 2025	Wind
Antlia Community Solar	Antlia Community Solar	Edgerton, MN	3 GWh	Aug 2017	Dec 2024	Solar
Antares Community Solar	Antares Community Solar	Tracy, MN	5 GWh	May 2018	Dec 2024	Solar
Anheuser-Busch St Louis	Anheuser-Busch Inc	St. Louis, MO	42 GWh	Dec 1938	Dec 2025	Natural Gas : 93.5% Other Biomass Gas : 6.5%
Angola Solar, LLC	Angola Solar, LLC	Coldwater, MI	4 GWh	Dec 2020	Dec 2024	Solar
Andromeda Community Solar	Andromeda Community Solar	Lester Prairie, MN	8 GWh	Sep 2017	Dec 2024	Solar
Anderson Erickson	Anderson Erickson Dairy	Des Moines, IA	19 MWh	Mar 2000	Dec 2024	Distillate Fuel Oil
Amite Solar, LLC	Amite Solar, LLC	Roseland, LA	177 GWh	-	Dec 2025	Solar
Alliant SBD 9203 Profol	American Profol Incorporated	Cedar Rapids, IA	56 MWh	Aug 1996	Nov 2025	Distillate Fuel Oil
Smithland Hydroelectric Plant	American Mun Power-Ohio, Inc	Smithland, KY	336 GWh	Jun 2017	Dec 2025	Water
Cannelton Hydroelectric Plant	American Mun Power-Ohio, Inc	Hawesville, KY	416 GWh	Dec 2015	Dec 2024	Water
American Crystal Sugar Hillsboro	American Crystal Sugar Co	Hillsboro, ND	87 GWh	Aug 1990	Dec 2024	Subbituminous Coal
American Crystal Sugar East Grand Forks	American Crystal Sugar Co	East Grand Forks, MN	43 GWh	Aug 1990	Dec 2024	Subbituminous Coal
American Crystal Sugar Drayton	American Crystal Sugar Co	Drayton, ND	42 GWh	Aug 1965	Dec 2024	Subbituminous Coal
American Crystal Sugar Crookston	American Crystal Sugar Co	Crookston, MN	43 GWh	Aug 1954	Dec 2024	Subbituminous Coal
Ameresco Jefferson City	AMERESCO Jefferson City LLC	Jefferson City, MO	20 GWh	Feb 2009	Dec 2024	Landfill Gas
Ameresco Janesville	AMERESCO Janesville LLC	Janesville, WI	9 GWh	Sep 2004	Dec 2024	Landfill Gas
TAC-Distributed Energy Resource Hybrid	Ameren Illinois	Champaign, IL	307 MWh	Feb 2017	Dec 2024	Solar : 63.8% Wind : 36.2%
Amana Society Service Company	Amana Society Service Co	Middle Amana, IA	1 GWh	Apr 2001	Dec 2024	Distillate Fuel Oil
FastSun 19 CSG	Altus Power America Management, LLC	Farmington, MN	2 GWh	May 2020	Dec 2024	Solar
FastSun 7 CSG	Altus Power America Management, LLC	Stewart, MN	2 GWh	Nov 2019	Dec 2024	Solar
FastSun 3 CSG	Altus Power America Management, LLC	Albany, MN	2 GWh	Nov 2019	Dec 2024	Solar
FastSun 9 CSG	Altus Power America Management, LLC	Zumbrota, MN	2 GWh	Feb 2020	Dec 2024	Solar
FastSun 8 CSG	Altus Power America Management, LLC	Courtland, MN	2 GWh	Nov 2019	Dec 2024	Solar
FastSun 11 CSG	Altus Power America Management, LLC	Zumbrota, MN	2 GWh	Feb 2020	Dec 2024	Solar
Griffith	Altus Power America Management, LLC	Griffith, IN	3 GWh	Feb 2013	Dec 2024	Solar
FastSun 14 CSG	Altus Power America Management, LLC	Eagle Lake, MN	2 GWh	Nov 2019	Dec 2024	Solar
FastSun 13 CSG	Altus Power America Management, LLC	Osakis, MN	2 GWh	Nov 2019	Dec 2024	Solar
FastSun 18 CSG	Altus Power America Management, LLC	La Crescent, MN	2 GWh	Dec 2019	Dec 2024	Solar
FastSun 10 CSG	Altus Power America Management, LLC	Zumbrota, MN	2 GWh	Feb 2020	Dec 2024	Solar
East Chicago	Altus Power America Management, LLC	East Chicago, IN	3 GWh	Feb 2013	Dec 2024	Solar
Corcoran CSG	Altus Power America Management, LLC	Corcoran, MN	8 GWh	Dec 2018	Dec 2024	Solar
FastSun12 CSG	Altus Power America Management, LLC	Morristown, MN	2 GWh	Jun 2021	Dec 2024	Solar
Cedar Falls Solar Farm	Altus Power America Management, LLC	Cedar Falls, IA	2 GWh	Mar 2016	Dec 2024	Solar
FastSun 2 CSG	Altus Power America Management, LLC	Randolph Township, MN	2 GWh	May 2020	Dec 2024	Solar
Helen Solar CSG	Altus Power America Management, LLC	Plato, MN	9 GWh	Jun 2020	Dec 2024	Solar
Walcott Solar CSG	Altus Power America Management, LLC	Faribault, MN	9 GWh	Jun 2020	Dec 2024	Solar
Warsaw Solar CSG	Altus Power America Management, LLC	Morristown, MN	5 GWh	Jun 2020	Dec 2024	Solar
Northfield Solar CSG	Altus Power America Management, LLC	Northfield, MN	9 GWh	Jun 2020	Dec 2024	Solar
FastSun 5 CSG	Altus Power America Management, LLC	La Crescent, MN	2 GWh	Dec 2019	Dec 2024	Solar
FastSun 1 CSG	Altus Power America Management, LLC	Dassel, MN	2 GWh	Nov 2019	Dec 2024	Solar
FastSun 4 CSG	Altus Power America Management, LLC	Hugo, MN	2 GWh	May 2021	Dec 2024	Solar
FastSun 21 CSG	Altus Power America Management, LLC	St. Cloud, MN	2 GWh	May 2021	Dec 2024	Solar
Waterville CSG Solar Holdings LLC	Altus Power America Management, LLC	Waterville, MN	8 GWh	Feb 2018	Dec 2025	Solar
Dundas Solar Holdings LLC CSG	Altus Power America Management, LLC	Northfield, MN	8 GWh	Feb 2018	Dec 2025	Solar
Rantoul Solar	Altorfer Inc.	Rantoul, IL	3 GWh	Nov 2016	Dec 2024	Solar
Allie L.L.C. (CSG)	Allie L.L.C.	Renville, MN	2 GWh	Jul 2022	Dec 2024	Solar
Jean Duluth Solar	ALLETE, Inc.	Duluth, MN	2 GWh	Nov 2022	Dec 2024	Solar
Laskin Solar	ALLETE, Inc.	Hoyt Lakes, MN	8 GWh	Nov 2022	Dec 2024	Solar
Sylvan Solar	ALLETE, Inc.	Pillager, MN	25 GWh	Jun 2023	Dec 2024	Solar
Rapids Energy Center	ALLETE, Inc.	Grand Rapids, MN	40 GWh	Dec 1942	Dec 2024	Natural Gas : 77.3% Water : 22.7%
Taconite Ridge 1 Wind Energy Center	ALLETE, Inc.	Mountain Iron, MN	47 GWh	Apr 2008	Dec 2024	Wind
Bison I Wind Energy Center	ALLETE, Inc.	New Salem, ND	166 GWh	Nov 2010	Dec 2024	Wind
Prairie River	ALLETE, Inc.	Grand Rapids, MN	2 GWh	Mar 1920	Dec 2024	Water
Thomson	ALLETE, Inc.	Carlton, MN	290 GWh	Dec 1906	Dec 2024	Water
Syl Laskin	ALLETE, Inc.	Hoyt Lakes, MN	172 GWh	May 1953	Dec 2024	Natural Gas
Blanchard	ALLETE, Inc.	Royalton, MN	82 GWh	Jan 1925	Dec 2024	Water
Clay Boswell	ALLETE, Inc.	Cohasset, MN	6 TWh	Jun 1958	Dec 2025	Subbituminous Coal : 99.8%
Fond Du Lac	ALLETE, Inc.	Duluth, MN	54 GWh	Dec 1923	Dec 2024	Water
Knife Falls	ALLETE, Inc.	Cloquet, MN	10 GWh	Dec 1921	Dec 2024	Water
Little Falls (MN)	ALLETE, Inc.	Little Falls, MN	32 GWh	Dec 1905	Dec 2024	Water
M L Hibbard	ALLETE, Inc.	Duluth, MN	98 GWh	May 1949	Dec 2025	Wood/Wood Waste Solids : 91.0% Subbituminous Coal : 6.9% Natural Gas : 2.1%
Pillager	ALLETE, Inc.	Pillager, MN	7 GWh	Dec 1916	Dec 2024	Water
Scanlon	ALLETE, Inc.	Scanlon, MN	7 GWh	Dec 1922	Dec 2024	Water
Sylvan	ALLETE, Inc.	Pillager, MN	11 GWh	Dec 1912	Dec 2024	Water
Winton	ALLETE, Inc.	Winton, MN	10 GWh	Jul 1923	Dec 2024	Water
Bison 2 Wind Energy Center	ALLETE, Inc.	New Salem, ND	219 GWh	Nov 2012	Dec 2024	Wind
Bison 4 Wind Energy Center	ALLETE, Inc.	New Salem, ND	624 GWh	Dec 2014	Dec 2024	Wind
Bison 3 Wind Energy Center	ALLETE, Inc.	New Salem, ND	223 GWh	Nov 2012	Dec 2024	Wind
Glen Ullin Energy Center	ALLETE Clean Energy	Glen Ullin, ND	439 GWh	Nov 2019	Dec 2025	Wind
Lincoln Heights I	ALLETE Clean Energy	Lake Benton, MN	10 GWh	Apr 2006	Dec 2024	Wind
Lincoln Heights II	ALLETE Clean Energy	Lake Benton, MN	7 GWh	Apr 2006	Dec 2024	Wind
Cisco	ALLETE Clean Energy	Brewster, MN	9 GWh	Jan 2008	Dec 2024	Wind
Storm Lake 1	ALLETE Clean Energy	Alta, IA	85 GWh	Apr 1999	Dec 2024	Wind
Lake Benton I	ALLETE Clean Energy	Lake Benton, MN	244 GWh	Jan 1998	Dec 2024	Wind

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