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	Jul 2026
Annual Generation	669.4 TWh
Power Plants	3,038
Utilities	1,345
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 \| 26.5% Wind \| 14.9% Nuclear \| 13.9% Solar \| 5.7% 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
Bent Tree Wind Farm Phase 1	Wisconsin Power & Light Co	Hartland, MN	334 GWh	Jan 2011	Dec 2025	Wind
Benson City of	City of Benson - (MN)	Benson, MN	114 MWh	Apr 2002	Dec 2025	Distillate Fuel Oil
Bennington Wind	Minonk Stewardship Wind LLC	Minonk, IL	300 GWh	Sep 2021	May 2026	Wind
Benndale	Cooperative Energy	Benndale, MS	49 GWh	Sep 1969	Dec 2025	Natural Gas
Beloit Memorial Hospital Power Plant	Beloit Memorial Hospital	Beloit, WI	147 MWh	May 2000	Dec 2025	Natural Gas : 99.1% Distillate Fuel Oil : 0.9%
Belmont	Marion Solar LLC	Indianapolis, IN	5 GWh	Oct 2015	Dec 2025	Solar
Bellflower Solar, LLC	Geronimo Power	Brooten, MN	2 GWh	Nov 2020	Dec 2025	Solar
Bellevue	City of Bellevue - (IA)	Bellevue, IA	10 MWh	Jun 1947	Dec 2025	Distillate Fuel Oil
Belle River	DTE Electric Company	China Twp, MI	5 TWh	Oct 1981	May 2026	Subbituminous Coal : 78.5% Natural Gas : 21.1%
Beebe 1B	Beebe 1B Renewable Energy, LLC	Ithaca, MI	127 GWh	Nov 2014	Dec 2025	Wind
Beebe 1A	Beebe Renewable Energy, LLC	Ithaca, MI	186 GWh	Nov 2012	Dec 2025	Wind
Becker Solar CSG	SunShare Management	St. Michael, MN	1 GWh	Feb 2019	Dec 2025	Solar
Becker Solar 5 CSG	SunShare Management	St. Michael, MN	1 GWh	Feb 2019	Dec 2025	Solar
Becker Solar 4 CSG	SunShare Management	St. Michael, MN	1 GWh	Feb 2019	Dec 2025	Solar
Becker Solar 3 CSG	SunShare Management	St. Michael, MN	1 GWh	Feb 2019	Dec 2025	Solar
Becker Solar 2 CSG	SunShare Management	St. Michael, MN	1 GWh	Feb 2019	Dec 2025	Solar
Beaver Island	Great Lakes Energy Coop	Beaver Island, MI	50 MWh	Aug 2000	Dec 2025	Distillate Fuel Oil
Beaver Dam Solar	Wisconsin Power & Light Co	Dodge, WI	101 GWh	Nov 2023	May 2026	Solar
Beaver Creek Wind	MidAmerican Energy Co	Ogden, IA	1 TWh	Nov 2017	May 2026	Wind
Bear Grove Solar	Bear Grove Solar, LLC	Byron, MN	2 GWh	Jan 2023	Dec 2025	Solar
Bear Creek (WI)	Wisconsin Power & Light Co	Lone Rock, WI	100 GWh	Aug 2022	May 2026	Solar
Bayou Galion Solar Project	Bayou Galion Solar Project, LLC	Mer Rouge, LA	219 GWh	Oct 2024	May 2026	Solar
Bayou Cove Peaking Power	Bayou Cove Peaking Power, LLC	Jennings, LA	125 GWh	Jun 2002	May 2026	Natural Gas
Bay Front	Northern States Power Co - Minnesota	Ashland, WI	177 GWh	Dec 1948	Dec 2025	Wood/Wood Waste Solids : 95.1% Tire-derived Fuels : 4.2% Natural Gas : 0.7%
Bavaria Solar LLC	Bavaria Solar LLC	Lake Wilson, MN	845 MWh	Jun 2025	Dec 2025	Solar
Battle Creek Mill	RockTenn-Battle Creek Mill	Battle Creek, MI	4 GWh	Dec 1950	Dec 2024	Natural Gas
Barton Windpower LLC	Avangrid Power LLC	Kensett, IA	365 GWh	May 2009	Dec 2025	Wind
Barron Solar Array	Onsite Partners, LLC	Barron, WI	6 GWh	Jul 2021	Dec 2025	Solar
Barron	City of Barron - (WI)	Barron, WI	382 MWh	Jul 1923	Dec 2025	Water
Barone CSG	Terraform Arcadia	Winstead, MN	2 GWh	Sep 2018	Dec 2025	Solar
Bancroft (MN)	OneEnergy, Inc.	Albert Lea, MN	589 MWh	Sep 2025	Dec 2025	Solar
Bancroft	Bancroft Municipal Utilities - (IA)	Bancroft, IA	22 MWh	Dec 1947	Dec 2025	Distillate Fuel Oil
Baldwin Wind LLC	Baldwin Wind LLC	Wilton, ND	384 GWh	Nov 2010	Dec 2025	Wind
Baldwin Solar BESS	Vistra Corp	Baldwin, IL	147 GWh	Nov 2024	May 2026	Solar
Baldwin Energy Complex	Dynegy Midwest Generation Inc	Baldwin, IL	6 TWh	Jun 1970	May 2026	Subbituminous Coal : 99.7%
Badger Wind, LLC	Badger Wind , LLC	Northwest McIntosh, ND	374 GWh	-	May 2026	Wind
Badger Hollow II	Wisconsin Electric Power Co	Cobb, WI	213 GWh	Nov 2023	May 2026	Solar
Badger Hollow I	Wisconsin Public Service Corp	Montfort, WI	201 GWh	Oct 2021	May 2026	Solar
B.R. Sauk Rapids CSG	Minnesota Solar CSG 9, LLC	Sauk Rapids, MN	8 GWh	Oct 2017	Dec 2024	Solar
B.R. Sartell CSG	Minnesota Solar CSG 21, LLC	Sartell, MN	4 GWh	Oct 2017	Dec 2024	Solar
B.R. Corcoran CSG	Minnesota Solar CSG 19, LLC	Corcoran, MN	8 GWh	Oct 2017	Dec 2024	Solar
B&K Energy Systems LLC	Brewster	Brewster, MN	5 GWh	Nov 2003	Dec 2025	Wind
Avenue A Generator Sets	City of Rock Falls - (IL)	Rock Falls, IL	224 MWh	Aug 2000	Dec 2025	Distillate Fuel Oil
Autumn Hills LLC	CHI Operations Inc	Hendricks, MN	4 GWh	Jan 2001	Dec 2024	Wind
Auriga Community Solar	Geronimo Power	Slayton, MN	2 GWh	Nov 2018	Dec 2025	Solar
August Wind Farm	August Wind Energy, LLC	Clearfield, IA	6 GWh	Jan 2017	Nov 2025	Wind
Audrain Generating Station	Union Electric Co - (MO)	Vandalia, MO	403 GWh	Jan 2001	Dec 2025	Natural Gas
Auburn Solar WI, LLC	Wisconsin Electric Power Co	Campbellsport, WI	9 GWh	Nov 2024	Dec 2025	Solar
Atwater Solar	Enel Green Power NA, Inc.	Atwater, MN	8 GWh	Nov 2016	Dec 2025	Solar
Attala	Entergy Mississippi LLC	Sallis, MS	3 TWh	Feb 2001	May 2026	Natural Gas
Atlantic Alumina, Gramercy Operations	Atalco Gramercy LLC	Gramercy, LA	208 GWh	Jan 1958	Dec 2024	Natural Gas
Atlantic	Atlantic Municipal Utilities (IA)	Atlantic, IA	115 MWh	Aug 1966	Dec 2025	Natural Gas
ATI	Wisconsin Electric Power Co	Cudahy, WI	3 GWh	Oct 2020	Dec 2025	Solar
Athens MN CONX	SoCore Energy LLC	Athens, MN	10 GWh	Nov 2018	Dec 2025	Solar
Astoria Station	Otter Tail Power Co	Astoria, SD	530 GWh	Mar 2021	May 2026	Natural Gas
Aster Community Solar Garden, LLC	Geronimo Power	Raymond, MN	2 GWh	Sep 2020	Dec 2025	Solar
Assembly Solar Project	Assembly Solar I, LLC	Venice Township, MI	100 GWh	Nov 2020	May 2026	Solar
Assembly Solar III	Assembly Solar III, LLC	Lennon, MI	165 GWh	Dec 2021	May 2026	Solar
Assembly Solar II LLC	Assembly Solar II LLC	Lennon, MI	226 GWh	Nov 2021	May 2026	Solar
Ashtabula Wind III LLC	Otter Tail Power Co	Luverne, ND	120 GWh	Nov 2010	Dec 2025	Wind
Ashtabula Wind II LLC	Ashtabula Wind II LLC	Luverne, ND	364 GWh	Sep 2009	Dec 2025	Wind
Ashtabula Wind Energy Center	Otter Tail Power Co	Luverne, ND	89 GWh	Sep 2008	Dec 2025	Wind
Ashley-Chicot Solar	Today's Power, Inc.	Hamburg, AR	2 GWh	Jul 2018	Dec 2025	Solar
Arq Solutions Red River	Arq Solutions (Red River), LLC	Coushatta, LA	100 GWh	Jan 2011	May 2026	Waste Heat
Arpin Dam	Zero6 Energy Hydro	Radisson, WI	6 GWh	Aug 1971	Aug 2025	Water
Armstrong Solar	ETCAP NES CS MN 06 LLC	Glenwood, MN	5 GWh	Feb 2018	Dec 2025	Solar
Armstrong 1	Greenbacker Renewable Energy Corporation	Greenwood, IL	4 GWh	Nov 2024	Dec 2025	Solar
Arkansas Nuclear One	Entergy Arkansas LLC	Russellville, AR	14 TWh	Nov 1974	May 2026	Nuclear
Aries Community Solar	Aries Community Solar	Claremont, MN	7 GWh	Sep 2017	Dec 2025	Solar
Argyle	City of Argyle - (WI)	Argyle, WI	193 MWh	Dec 1928	Dec 2025	Water : 92.7% Distillate Fuel Oil : 7.3%
Argo Navis Community Solar	Argo Navis Community Solar	Scandia, MN	5 GWh	Feb 2018	Dec 2025	Solar
Archtop Solar	Archtop Property Management LLC	Gibson City, IL	64 GWh	-	May 2026	Solar
Archer Daniels Midland Peoria	BioUrja Renewables LLC	Peoria, IL	73 GWh	Dec 1987	Dec 2025	Natural Gas
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 Decatur	Archer Daniels Midland Co	Decatur, IL	911 GWh	Mar 1987	May 2026	Bituminous Coal : 63.2% Subbituminous Coal : 36.5%
Archer Daniels Midland Clinton	Archer Daniels Midland Co	Clinton, IA	679 GWh	Jan 2009	May 2026	Subbituminous Coal : 87.9% Other Biomass Solids : 7.0% Bituminous Coal : 5.1%
Archer Daniels Midland Cedar Rapids	Archer Daniels Midland Co	Cedar Rapids, IA	1 TWh	Oct 1988	May 2026	Subbituminous Coal : 60.7% Natural Gas : 23.3% Bituminous Coal : 16.0%
ArcelorMittal Burns Harbor	Cleveland-Cliffs Burns Harbor LLC	Burns Harbor, IN	719 GWh	Dec 1968	Dec 2025	Blast Furnace Gas : 37.1% Natural Gas : 32.1% Other Gas : 30.8%
Arcadia Solar	Green Street Power Partners	Arcadia, WI	7 GWh	Aug 2019	Dec 2025	Solar
Arcadia Electric	City of Arcadia - (WI)	Arcadia, WI	253 MWh	Dec 1929	Dec 2025	Distillate Fuel Oil : 70.5% Natural Gas : 29.5%
Arbor Hill Wind Farm	MidAmerican Energy Co	Greenfield, IA	1 TWh	Nov 2018	May 2026	Wind
Arbor Hill Solar	MidAmerican Energy Co	Greenfield, IA	45 GWh	Dec 2021	May 2026	Solar
Aquila Community Solar	Geronimo Power	Glenwood, MN	2 GWh	Feb 2019	Dec 2025	Solar
Aquarius Community Solar	Geronimo Power	Tracy, MN	2 GWh	Apr 2019	Dec 2025	Solar
Appleton	Wisconsin Electric Power Co	Appleton, WI	12 GWh	Jul 1916	Dec 2025	Water
Appleseed Solar	Appleseed Solar, LLC	Logansport, IN	306 GWh	Jul 2025	May 2026	Solar
Apple River Solar, LLC	Geronimo Power	Amery, WI	82 GWh	Nov 2025	May 2026	Solar
Apple River	Northern States Power Co - Minnesota	Somerset, WI	13 GWh	Dec 1900	Dec 2025	Water
Apple Canyon Lake Solar	ACM Solar, LLC.	Apple River, IL	3 GWh	Nov 2020	Dec 2025	Solar
Apple Blossom Wind Farm	Apple Blossom Wind, LLC	Pigeon, MI	248 GWh	Oct 2017	May 2026	Wind
Antlia Community Solar	Antlia Community Solar	Edgerton, MN	3 GWh	Aug 2017	Dec 2025	Solar
Antigo Solar Partners, LLC	Wisconsin Electric Power Co	Antigo, WI	9 GWh	Oct 2025	Dec 2025	Solar
Antigo-Forrest Street Solar Project	Wisconsin Public Service Corp	Antigo, WI	9 GWh	Oct 2024	Dec 2025	Solar
Antares Community Solar	Antares Community Solar	Tracy, MN	5 GWh	May 2018	Dec 2025	Solar
Anoka County MN CONX	SoCore Energy LLC	Ramsey, MN	6 GWh	Sep 2018	Dec 2025	Solar
Annandale Solar	Enel Green Power NA, Inc.	Annandale, MN	12 GWh	Nov 2016	Dec 2025	Solar
Anita	City of Anita - (IA)	Anita, IA	77 MWh	Sep 1939	Dec 2025	Distillate Fuel Oil
Anheuser-Busch St Louis	Anheuser-Busch Inc	St. Louis, MO	38 GWh	Dec 1938	May 2026	Natural Gas : 93.0% Other Biomass Gas : 7.0%
Angus Anson	Northern States Power Co - Minnesota	Sioux Falls, SD	239 GWh	Jul 1994	Dec 2025	Natural Gas : 99.9%

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	442.5 GWh	4
#26	Associated Electric Cooperative, Inc.	23.4 TWh	47
#13	Duke Energy Carolinas	112.6 TWh	577
#50	Duke Energy Progress West	4.5 TWh	15
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	33.9 TWh	25
#1	PJM Interconnection, LLC	882.8 TWh	2,652
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#5	Southwest Power Pool	306.8 TWh	856
#53	Southwestern Power Administration	4.1 TWh	34
#9	Tennessee Valley Authority	163.4 TWh	207

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	882.8 TWh	2,652
#2	Midcontinent Independent System Operator, Inc.	669.4 TWh	3,038
#3	Electric Reliability Council of Texas, Inc.	494.1 TWh	1,471
#5	Southwest Power Pool	306.8 TWh	856
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#7	California Independent System Operator	169.4 TWh	2,135
#9	Tennessee Valley Authority	163.4 TWh	207
#10	Florida Power & Light Co.	152.2 TWh	187
#12	New York Independent System Operator	134.3 TWh	1,299
#13	Duke Energy Carolinas	112.6 TWh	577