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	Nov 2025
Annual Generation	655.1 TWh
Power Plants	2,831
Utilities	1,296
Ranked #2 out of 65 in terms of net annual generation
Ranked #2 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 35.7% Coal \| 29% Wind \| 14.9% Nuclear \| 13.9% Solar \| 4.5% Water \| 1.5% Other Fuel \| 0.6%

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Daily Net Generation for Midcontinent Independent System Operator, Inc. for the past 3 Years

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Southwestern Bell Telephone	AT&T	St. Louis, MO	116 MWh	Jan 1992	Aug 2025	Distillate Fuel Oil
Anheuser-Busch St Louis	Anheuser-Busch Inc	St. Louis, MO	42 GWh	Dec 1938	Sep 2025	Natural Gas : 93.2% Other Biomass Gas : 6.8%
IKEA St. Louis 410	IKEA Property Inc	St. Louis, MO	328 MWh	Aug 2015	Apr 2025	Solar
WrightSun CSG, LLC	Cypress Creek Renewables	St. Michael, MN	6 GWh	Dec 2017	Dec 2024	Solar
Becker Solar CSG	SunShare Management	St. Michael, MN	2 GWh	Feb 2019	Dec 2024	Solar
Becker Solar 2 CSG	SunShare Management	St. Michael, MN	2 GWh	Feb 2019	Dec 2024	Solar
Becker Solar 5 CSG	SunShare Management	St. Michael, MN	2 GWh	Feb 2019	Dec 2024	Solar
Wright Cuddyer CSG	Minnesota Solar CSG 1, LLC	St. Michael, MN	5 GWh	Sep 2018	Dec 2024	Solar
Becker Solar 3 CSG	SunShare Management	St. Michael, MN	2 GWh	Feb 2019	Dec 2024	Solar
Becker Solar 4 CSG	SunShare Management	St. Michael, MN	2 GWh	Feb 2019	Dec 2024	Solar
MSC-GreyCloud01 Community Solar	MSC-GreyCloud01 LLC	St. Paul Park, MN	2 GWh	Feb 2019	Dec 2024	Solar
Twin Cities Hydro LLC	Twin Cities Hydro LLC	St. Paul, MN	90 GWh	Sep 1924	Dec 2024	Water
St. Paul Intl Airport Red & Blue Parking	Metropolitan Airports Commission	St. Paul, MN	3 GWh	Nov 2015	Sep 2025	Solar
MNDOT Standby Generation	State of Minnesota Department of Administration	St. Paul, MN	38 MWh	Jun 1995	Aug 2025	Distillate Fuel Oil
High Bridge	Northern States Power Co - Minnesota	St. Paul, MN	3 TWh	Apr 2008	Sep 2025	Natural Gas
St Paul Cogeneration	St Paul Cogeneration LLC	St. Paul, MN	151 GWh	Mar 2003	Dec 2024	Wood/Wood Waste Solids : 82.2% Natural Gas : 17.8%
Paulson Community (CSG)	Paulson Community Solar LLC	St. Peter, MN	2 GWh	Mar 2020	Dec 2024	Solar
Lake Emily Solar	Enel Green Power NA, Inc.	St. Peter, MN	9 GWh	Nov 2016	Dec 2024	Solar
USS Good Solar CSG	United States Solar Corporation	Stacy, MN	2 GWh	Nov 2018	Dec 2024	Solar
USS Rockpoint Solar CSG	United States Solar Corporation	Stacy, MN	2 GWh	Nov 2018	Dec 2024	Solar
USS Solar Brick	Standard Solar	Standard City, IL	5 GWh	May 2021	Dec 2024	Solar
Wolf River (Chipewa 1)	Greenbacker Renewable Energy Corporation	Stanley, WI	2 GWh	Jan 2024	Dec 2024	Solar
Star City School District	Today's Power, Inc.	Star City, AR	3 GWh	Aug 2021	Dec 2024	Solar
C&L	Today's Power, Inc.	Star City, AR	2 GWh	May 2020	Dec 2024	Solar
SolarClub 03	Nautilus Solar Solutions	Starbuck, MN	2 GWh	Aug 2023	Dec 2024	Solar
Malmedal Solar Garden	Malmedal Garden LLC	Starbuck, MN	2 GWh	Jun 2019	Dec 2024	Solar
Wollan Garden Solar	Wollan Garden LLC	Starbuck, MN	1 GWh	Jun 2019	Dec 2024	Solar
Star Garden	Star Garden LLC	Starbuck, MN	2 GWh	Jan 2020	Dec 2024	Solar
Strandness Garden	Strandness Garden LLC	Starbuck, MN	2 GWh	Jan 2020	Dec 2024	Solar
PopeSun CSG, LLC	Cypress Creek Renewables	Starbuck, MN	8 GWh	Nov 2017	Dec 2024	Solar
State Center	City of State Center - (IA)	State Center, IA	75 MWh	Jul 1972	Dec 2024	Distillate Fuel Oil : 63.9% Natural Gas : 36.1%
White Rapids	Wisconsin Electric Power Co	Stephenson, MI	30 GWh	Sep 1927	Dec 2024	Water
Chalk Hill	Wisconsin Electric Power Co	Stephenson, MI	14 GWh	Apr 1927	Dec 2024	Water
Perryville Power Station	Entergy Louisiana LLC	Sterlington, LA	4 TWh	May 2001	Sep 2025	Natural Gas
Ouachita	Entergy Louisiana LLC	Sterlington, LA	4 TWh	Jul 2002	Sep 2025	Natural Gas
Stevens Point Mill	Pixelle Specialty Solution, LLC	Stevens Point, WI	13 GWh	Jan 2002	Dec 2024	Natural Gas
Stevens Point	Consolidated Water Power Co	Stevens Point, WI	29 GWh	Dec 1917	Dec 2024	Water
McLeod Community Solar One LLC CSG	Madison Energy Holdings LLC	Stewart, MN	2 GWh	Nov 2019	Dec 2024	Solar
Stewart CSG1, LLC	Nautilus Solar Solutions	Stewart, MN	2 GWh	Jul 2021	Dec 2024	Solar
FastSun 7 CSG	Altus Power America Management, LLC	Stewart, MN	2 GWh	Nov 2019	Dec 2024	Solar
USS Verbena Solar LLC	United States Solar Corporation	Stewart, MN	2 GWh	Sep 2022	Dec 2024	Solar
IGS Stockton DG CSG	IGS Stockton DG, LLC	Stockton, IL	3 GWh	Oct 2020	Dec 2023	Solar
Story City	City of Story City - (IA)	Story City, IA	97 MWh	Dec 1963	Dec 2024	Distillate Fuel Oil : 89.6% Natural Gas : 10.4%
Story City Wind Project	Hamilton Wind Energy LLC	Story City, IA	5 GWh	Sep 2010	Dec 2024	Wind
Great Pathfinder Wind	Great Pathfinder Wind	Stratford, IA	783 GWh	Jan 2023	Sep 2025	Wind
Strawberry Point DPC Solar	SoCore Energy LLC	Strawberry Point, IA	2 GWh	Oct 2017	Dec 2024	Solar
South Strawberry	City of Strawberry Point	Strawberry Point, IA	13 MWh	Dec 2001	Dec 2024	Distillate Fuel Oil
Gilliam South	City of Stuart - (IA)	Stuart, IA	2 MWh	Jan 2001	Dec 2024	Distillate Fuel Oil
Wind GEM	Wind GEM, LLC	Stuart, IA	5 GWh	Aug 2015	Dec 2024	Wind
Waxdale	S.C. Johnson & Son, Inc.	Sturtevant, WI	36 GWh	Nov 2003	Sep 2025	Natural Gas : 47.1% Landfill Gas : 32.3% Wind : 11.7% Solar : 8.9%
Stuttgart Solar	Stuttgart Solar, LLC	Stuttgart, AR	155 GWh	Dec 2017	Sep 2025	Solar
Sullivan (IL)	City of Sullivan - (IL)	Sullivan, IL	255 MWh	May 1946	Sep 2025	Distillate Fuel Oil
Merom	Hallador Power Company, LLC	Sullivan, IN	5 TWh	Jan 1982	Sep 2025	Bituminous Coal : 99.8%
CITGO Refinery Powerhouse	CITGO Petroleum Corp	Sulphur, LA	226 GWh	Dec 1941	Dec 2024	Other Gas
Calcasieu	Entergy Louisiana LLC	Sulphur, LA	94 GWh	Apr 2000	Nov 2024	Natural Gas
Lake Charles Plant	Rain CII Carbon LLC	Sulphur, LA	110 GWh	Nov 2012	Sep 2025	Waste Heat
Hawkeye Wind Farm	Greenbacker Renewable Energy Corporation	Sumner, IA	173 GWh	Sep 2012	Dec 2024	Wind
Sumner	City of Sumner - (IA)	Sumner, IA	175 MWh	Jul 1956	Dec 2024	Distillate Fuel Oil
Sumrall II Solar Farm	Onward Energy	Sumrall, MS	110 GWh	Nov 2017	Sep 2025	Solar
Prairie State Solar Project	Prairie State Solar, LLC	Swanwick Township, IL	231 GWh	Jun 2021	Sep 2025	Solar
Dow St Charles Operations	Dow Chemical Co - St Charles	Taft, LA	2 TWh	Nov 1996	Sep 2025	Natural Gas : 99.2% Other Gas : 0.8%
Louise Solar	National Grid Renewables	Taopi, MN	83 GWh	Nov 2024	Sep 2025	Solar
Farmers City Wind LLC	Avangrid Power LLC	Tarkio, MO	246 GWh	Mar 2009	Dec 2024	Wind
Chisago Community Solar	Chisago Community Solar	Taylor Falls, MN	7 GWh	Nov 2016	Dec 2024	Solar
Gopher CSG	SoCore Energy LLC	Taylor Falls, MN	8 GWh	Dec 2017	Dec 2024	Solar
Taylors Falls CSG	SoCore Energy LLC	Taylor Falls, MN	8 GWh	Dec 2017	Dec 2024	Solar
MSC-Chisago02 LLC	MSC-Chisago02 LLC	Taylors Falls, MN	1 GWh	Jul 2019	Dec 2024	Solar
MSC-Chisago01 LLC CSG	MSC-Chisago01 LLC	Taylors Falls, MN	2 GWh	Jun 2019	Dec 2024	Solar
USS Sunrise Solar LLC CSG	Standard Solar	Taylors Falls, MN	1 GWh	May 2020	Dec 2024	Solar
Fox CSG, LLC	Ecoplexus, Inc	Taylors Falls, MN	7 GWh	Feb 2018	Dec 2024	Solar
Novel Stein Solar LLC CSG	REA Investments, LLC	Taylors Falls, MN	2 GWh	Aug 2022	Dec 2024	Solar
Five Oaks Gas Recovery	WM Renewable Energy LLC	Taylorville, IL	24 GWh	Jan 2008	Dec 2024	Landfill Gas
Sugar Creek Wind One LLC	Sugar Creek Wind One LLC	TBD, IL	643 GWh	Oct 2020	Sep 2025	Wind
Lincoln Land Wind	Lincoln Land Wind, LLC	TBD, IL	1 TWh	Oct 2021	Sep 2025	Wind
Hendershot Solar, LLC	Hendershot Solar, LLC	Tecumseh, MI	4 GWh	Dec 2020	Dec 2024	Solar
Tell City Solar Park	Indiana Municipal Power Agency	Tell City, IN	5 GWh	Jun 2020	Dec 2024	Solar
IMPA Tell City Solar Park	Indiana Municipal Power Agency	Tell City, IN	2 GWh	Jun 2015	Dec 2024	Solar
Carroll Area Wind Farm	SRIV Partnership LLC	Templeton, IA	54 GWh	Dec 2014	Dec 2024	Wind
Wabash Valley Power IGCC	Wabash Valley Power Assn, Inc	Terre Haute, IN	340 GWh	Nov 1953	Sep 2025	Natural Gas
Thief River Falls	City of Thief River Falls	Thief River Falls, MN	3 GWh	Jul 1927	Dec 2024	Water : 99.6%
Jack Fusco Energy Center	Brazos Valley Energy	Thompsons, TX	3 TWh	Apr 2003	Sep 2025	Natural Gas
DPC York	SoCore Energy LLC	Thomson, IL	3 GWh	Jul 2019	Dec 2024	Solar
Ameresco Danville Solar, LLC	Greenbacker Renewable Energy Corporation	Tilton, IL	4 GWh	Nov 2021	Dec 2024	Solar
Tilton	Tilton Energy LLC	Tilton, IL	69 GWh	May 1999	Dec 2024	Natural Gas
Tipton Solar Park	Indiana Municipal Power Agency	Tipton, IN	9 GWh	Jun 2019	Dec 2024	Solar
Tipton	City of Tipton - (IA)	Tipton, IA	69 MWh	Oct 1955	Dec 2024	Distillate Fuel Oil
Agriwind	Agriwind Holdings, LLC	Tiskilwa, IL	13 GWh	Jun 2007	Dec 2024	Wind
Tomahawk	Wisconsin Public Service Corp	Tomahawk, WI	11 GWh	Dec 1937	Dec 2024	Water
Packaging of America Tomahawk Mill	PCA-Tomahawk Mill	Tomahawk, WI	111 GWh	Dec 1919	Dec 2024	Wood/Wood Waste Solids : 35.7% Natural Gas : 34.2% Black Liquor : 18.1% Water : 11.7%
Briscoe 1A	7th Road Solar 1, LLC (Briscoe 1A)	Tonica, IL	4 GWh	Jan 2023	Dec 2024	Solar
Tatanka Ridge	Tatanka Ridge LLC	Toronto, SD	595 GWh	Dec 2020	Sep 2025	Wind
Tower	Wolverine Power Supply Coop	Tower, MI	62 MWh	Feb 1971	Dec 2024	Distillate Fuel Oil
Potato Rapids	Wisconsin Public Service Corp	Town of Porterfield, WI	4 GWh	Apr 1921	Dec 2024	Water
Grant County	Wisconsin Power & Light Co	Town of Potosi, WI	375 GWh	Apr 2024	Sep 2025	Solar
High Falls (WI)	Wisconsin Public Service Corp	Town of Stephenson, WI	16 GWh	Jul 1910	Dec 2024	Water
Caldron Falls	Wisconsin Public Service Corp	Town of Stephenson, WI	14 GWh	Oct 1924	Dec 2024	Water
Sandstone Rapids	Wisconsin Public Service Corp	Town of Stephenson, WI	9 GWh	Dec 1924	Dec 2024	Water
Johnson Falls	Wisconsin Public Service Corp	Town of Stephenson, WI	10 GWh	Jun 1923	Dec 2024	Water
Aquarius Community Solar	National Grid Renewables	Tracy, MN	2 GWh	Apr 2019	Dec 2024	Solar
Antares Community Solar	Antares Community Solar	Tracy, MN	5 GWh	May 2018	Dec 2024	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	696.7 GWh	4
#27	Associated Electric Cooperative, Inc.	23.6 TWh	47
#13	Duke Energy Carolinas	112.5 TWh	565
#52	Duke Energy Progress West	4.3 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	34.4 TWh	25
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#5	Southwest Power Pool	299.9 TWh	835
#49	Southwestern Power Administration	5.2 TWh	34
#9	Tennessee Valley Authority	161.6 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	655.1 TWh	2,831
#4	Electric Reliability Council of Texas, Inc.	485.0 TWh	1,313
#5	Southwest Power Pool	299.9 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	188.0 TWh	2,075
#9	Tennessee Valley Authority	161.6 TWh	204
#10	Florida Power & Light Co.	148.9 TWh	187
#12	New York Independent System Operator	131.6 TWh	1,211
#13	Duke Energy Carolinas	112.5 TWh	565