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	677.7 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 \| 6.1% Water \| 1.4% 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
DIVOCSG 13	DIVOCSG 13 LLC	Wabasha, MN	1 GWh	Mar 2025	Dec 2025	Solar
SolarClub 20 LLC	Nautilus Solar Solutions	Wabasha, MN	2 GWh	Nov 2020	Dec 2025	Solar
MN CSG 2019-105	MN CSG 2019-105 LLC	Wabash, MN	1 GWh	Apr 2025	Dec 2025	Solar
Liberty Pole DPC Solar	SoCore Energy LLC	Viroqua, WI	2 GWh	Apr 2017	Jul 2026	Solar
Double Back Diamond	Double Back Diamond Solar Power, LLC	Virden, IL	1 TWh	Oct 2024	Jul 2026	Solar
Viola	Village of Viola - (WI)	Viola, WI	15 MWh	Dec 2001	Dec 2025	Distillate Fuel Oil
Goldenrod (IL)	Generate Capital	Viola, IL	6 GWh	Jul 2025	Dec 2025	Solar
Villisca Municipal Power Plant	City of Villisca - (IA)	Villisca, IA	22 MWh	May 2003	Dec 2025	Distillate Fuel Oil
Leven Garden Solar	Leven Garden LLC	Villard, MN	2 GWh	Apr 2020	Dec 2025	Solar
Swan Garden	Swan Garden LLC	Villard, MN	2 GWh	Sep 2021	Dec 2025	Solar
Sidney A Murray Jr Hydroelectric	First National Bank-Commerce	Vidalia, LA	989 GWh	Apr 1990	Dec 2025	Water
International Paper Vicksburg Mill	International Paper Co-Vicksbg	Vicksburg, MS	204 GWh	Dec 1966	Jul 2026	Black Liquor : 54.2% Natural Gas : 31.2% Wood/Wood Waste Solids : 14.6%
Ergon Refining Vicksburg	Ergon Refining Inc	Vicksburg, MS	35 GWh	Feb 1995	Dec 2025	Natural Gas
Vestaburg	Wolverine Power Supply Coop	Vestaburg, MI	4 GWh	Dec 1958	Dec 2025	Natural Gas
Epic Verona	Epic Hosting, LLC	Verona, WI	2 GWh	May 2009	Dec 2025	Solar : 90.8% Distillate Fuel Oil : 9.2%
Community Wind North LLC	Northern States Power Co - Minnesota	Verdi Township, MN	110 GWh	Apr 2011	Dec 2025	Wind
Venice	Union Electric Co - (MO)	Venice, IL	18 GWh	May 2002	Dec 2025	Natural Gas
Assembly Solar Project	Assembly Solar I, LLC	Venice Township, MI	99 GWh	Nov 2020	Jul 2026	Solar
Velva Windfarm LLC	Acciona Wind Energy USA LLC	Velva, ND	20 GWh	Nov 2005	Dec 2025	Wind
IMPA Veedersburg Solar Park	Indiana Municipal Power Agency	Veedersburg, IN	1 GWh	Apr 2025	Dec 2025	Solar
Vandalia Renewable Energy Center	Union Electric Co - (MO)	Vandalia, MO	74 GWh	Oct 2025	Jul 2026	Solar
Huck Finn Renewable Energy Center	Union Electric Co - (MO)	Vandalia, MO	439 GWh	Nov 2024	Jul 2026	Solar
Audrain Generating Station	Union Electric Co - (MO)	Vandalia, MO	403 GWh	Jan 2001	Dec 2025	Natural Gas
Crossroads Solar (IN)	Crossroads Solar, LLC - (IN)	Van Buren Township, IN	241 GWh	Nov 2025	Jul 2026	Solar
Valparaiso Solar, LLC	AES Distributed Energy	Valparaiso, IN	427 MWh	Nov 2012	Oct 2025	Solar
Portage Solar	Ecos Energy LLC	Valparaiso, IN	2 GWh	Oct 2012	Dec 2025	Solar
St. James Solar (LA)	St. James Solar, LLC	Vacherie, LA	50 GWh	Jan 2023	Dec 2025	Solar
City of Peru Hydro-Electric Generating S	City of Peru - (IL)	Utica, IL	17 GWh	Aug 1996	Dec 2025	Water
Solar Star Urbana Landfill East	Solar Star Urbana Landfill East, LLC	Urbana, IL	4 GWh	Sep 2021	Dec 2025	Solar
Solar Star Urbana Landfill Central	Solar Star Urbana Landfill Central, LLC	Urbana, IL	4 GWh	Oct 2021	Dec 2025	Solar
USS University Park Solar	United States Solar Corporation	University Park, IL	3 GWh	Apr 2025	Dec 2025	Solar
Cross Winds Energy Park	Consumers Energy Co - (MI)	Unionville, MI	728 GWh	Nov 2014	Dec 2025	Wind
Cerro Gordo Wind Farm	Cerro Gordo Wind Farm	Union, IA	170 GWh	Jul 2020	Jul 2026	Wind
Paris Solar	Wisconsin Electric Power Co	Union Grove, WI	294 GWh	Nov 2024	Jul 2026	Solar
Paris (WI)	Wisconsin Electric Power Co	Union Grove, WI	215 GWh	Feb 1995	Dec 2025	Natural Gas
Sauk Solar Park	DTE Electric Company	Union City, MI	229 GWh	Dec 2024	Jul 2026	Solar
Coal Creek	Rainbow Energy Center	Underwood, ND	8 TWh	May 1979	Jul 2026	Refined Coal : 99.9%
Henryville Solar RES	Hoosier Energy R E C, Inc	Underwood, IN	1 GWh	Aug 2016	Dec 2025	Solar
Mosaic Phosphates Uncle Sam	Mosaic Phosphates Co.	Uncle Sam, LA	99 GWh	Dec 1967	Jul 2026	Waste Heat : 91.7% Natural Gas : 8.3%
Ubly	Thumb Electric Coop of Mich	Ubly, MI	12 MWh	May 1938	Dec 2024	Distillate Fuel Oil : 63.3% Natural Gas : 36.7%
Michigan Wind 1	Michigan Wind 1, LLC	Ubly, MI	165 GWh	Nov 2008	Dec 2025	Wind
Point Beach Nuclear Plant	NextEra Energy Point Beach LLC	Two Rivers, WI	10 TWh	May 1969	Jul 2026	Nuclear
Two Creeks Solar	Wisconsin Public Service Corp	Two Rivers, WI	187 GWh	Oct 2020	Jul 2026	Solar
Point Beach Solar	Point Beach Solar	Two Creeks, WI	199 GWh	Aug 2021	Jul 2026	Solar
Wildwood Solar Plant	Wildwood Solar, LLC	Tutwiler, MS	164 GWh	Nov 2025	Jul 2026	Solar
Viresco Turtle Lake	Viresco Turtle Lake	Turtle Lake, WI	8 GWh	Aug 2013	Dec 2025	Other Biomass Gas
Truman	City of Truman - (MN)	Truman, MN	16 MWh	Aug 1938	Dec 2025	Distillate Fuel Oil
Troy Solar	Southern Indiana Gas & Elec Co	Troy, IN	94 GWh	Mar 2021	Jul 2026	Solar
Elm Creek Wind II LLC	Avangrid Power LLC	Trimont, MN	187 GWh	Nov 2010	Dec 2025	Wind
OREG 3 Inc	Ormat Nevada Inc	Trimont, MN	43 GWh	Jul 2010	Jul 2026	Waste Heat
Elm Creek Wind LLC	Avangrid Power LLC	Trimont, MN	192 GWh	Nov 2008	Dec 2025	Wind
Lakefield Junction	Great River Energy	Trimont, MN	95 GWh	May 2001	Dec 2025	Natural Gas : 99.8%
Trimont Area Wind Farm	Avangrid Power LLC	Trimont, MN	350 GWh	Oct 2005	Dec 2025	Wind
Trenton West Phase 2	Generate Capital	Trenton, IL	213 MWh	Oct 2025	Dec 2025	Solar
Trenton East Phase 2	Generate Capital	Trenton, IL	245 MWh	Oct 2025	Dec 2025	Solar
M72 West Solar	Heritage Sustainable Energy. LLC	Traverse City, MI	2 GWh	Nov 2019	Dec 2025	Solar
TCLP Solar Phase 1	Heritage Sustainable Energy. LLC	Traverse City, MI	1 GWh	Sep 2017	Dec 2025	Solar
Johnson Co. Solar RES	Hoosier Energy R E C, Inc	Trafalgar, IN	674 MWh	Sep 2016	Dec 2025	Solar
Traer Wind Project	City of Traer - (IA)	Traer, IA	6 GWh	Sep 2010	Dec 2025	Wind
Traer South	City of Traer - (IA)	Traer, IA	12 MWh	Mar 2001	Dec 2025	Distillate Fuel Oil
Traer Main	City of Traer - (IA)	Traer, IA	65 MWh	Dec 1962	Dec 2025	Distillate Fuel Oil : 98.5% Natural Gas : 1.5%
Salt Creek Wind	Salt Creek Wind, LLC	Traer, IA	425 GWh	Nov 2025	Jul 2026	Wind
Antares Community Solar	Antares Community Solar	Tracy, MN	5 GWh	May 2018	Dec 2025	Solar
Aquarius Community Solar	Geronimo Power	Tracy, MN	2 GWh	Apr 2019	Dec 2025	Solar
Traer East	City of Traer - (IA)	Tracer, IA	6 MWh	Feb 2004	Dec 2025	Distillate Fuel Oil
High Falls (WI)	Wisconsin Public Service Corp	Town of Stephenson, WI	16 GWh	Jul 1910	Dec 2025	Water
Johnson Falls	Wisconsin Public Service Corp	Town of Stephenson, WI	11 GWh	Jun 1923	Dec 2025	Water
Caldron Falls	Wisconsin Public Service Corp	Town of Stephenson, WI	11 GWh	Oct 1924	Dec 2025	Water
Sandstone Rapids	Wisconsin Public Service Corp	Town of Stephenson, WI	10 GWh	Dec 1924	Dec 2025	Water
Grant County	Wisconsin Power & Light Co	Town of Potosi, WI	380 GWh	Apr 2024	Jul 2026	Solar
Potato Rapids	Wisconsin Public Service Corp	Town of Porterfield, WI	4 GWh	Apr 1921	Dec 2025	Water
Tower	Wolverine Power Supply Coop	Tower, MI	61 MWh	Feb 1971	Dec 2025	Distillate Fuel Oil
Tatanka Ridge	Tatanka Ridge LLC	Toronto, SD	522 GWh	Dec 2020	Jul 2026	Wind
Briscoe 1A	7th Road Solar 1, LLC (Briscoe 1A)	Tonica, IL	4 GWh	Jan 2023	Dec 2025	Solar
Packaging of America Tomahawk Mill	PCA-Tomahawk Mill	Tomahawk, WI	113 GWh	Dec 1919	Dec 2025	Wood/Wood Waste Solids : 35.4% Natural Gas : 35.0% Black Liquor : 18.0% Water : 11.0% Other Biomass Solids : 0.6%
Tomahawk	Wisconsin Public Service Corp	Tomahawk, WI	11 GWh	Dec 1937	Dec 2025	Water
Agriwind	Agriwind Holdings, LLC	Tiskilwa, IL	17 GWh	Jun 2007	Dec 2025	Wind
Tipton	City of Tipton - (IA)	Tipton, IA	266 MWh	Oct 1955	Dec 2025	Distillate Fuel Oil
Tipton Solar Park	Indiana Municipal Power Agency	Tipton, IN	9 GWh	Jun 2019	Dec 2025	Solar
IMPA Tipton 2 Solar Park	Indiana Municipal Power Agency	Tipton, IN	3 GWh	Apr 2025	Dec 2025	Solar
Ameresco Danville Solar, LLC	Altus Power America Management, LLC	Tilton, IL	4 GWh	Nov 2021	Dec 2025	Solar
Tilton	Tilton Energy LLC	Tilton, IL	54 GWh	May 1999	Dec 2025	Natural Gas
DPC York	SoCore Energy LLC	Thomson, IL	3 GWh	Jul 2019	Dec 2025	Solar
Jack Fusco Energy Center	Brazos Valley Energy	Thompsons, TX	4 TWh	Apr 2003	Jul 2026	Natural Gas
Thief River Falls	City of Thief River Falls - (MN)	Thief River Falls, MN	3 GWh	Jul 1927	Dec 2025	Water : 99.7%
Casey Fork Solar, LLC	RWE Clean Energy	Texico, IL	38 GWh	-	Jul 2026	Solar
Wabash Valley Power IGCC	Wabash Valley Power Assn, Inc	Terre Haute, IN	477 GWh	Nov 1953	Jul 2026	Natural Gas
Carroll Area Wind Farm	SRIV Partnership LLC	Templeton, IA	54 GWh	Dec 2014	Dec 2025	Wind
IMPA Tell City Solar Park	Indiana Municipal Power Agency	Tell City, IN	5 GWh	Jun 2015	Dec 2025	Solar
Tell City Solar Park	Indiana Municipal Power Agency	Tell City, IN	2 GWh	Jun 2020	Dec 2025	Solar
Hendershot Solar, LLC	Hendershot Solar, LLC	Tecumseh, MI	4 GWh	Dec 2020	Dec 2025	Solar
Lincoln Land Wind	Lincoln Land Wind, LLC	TBD, IL	1 TWh	Oct 2021	Jul 2026	Wind
Sugar Creek Wind One LLC	Sugar Creek Wind One LLC	TBD, IL	579 GWh	Oct 2020	Jul 2026	Wind
Five Oaks Gas Recovery	WM Renewable Energy LLC	Taylorville, IL	24 GWh	Jan 2008	Dec 2025	Landfill Gas
SAE Taylorville IL S1	SolAmerica Energy, LLC	Taylorville, IL	2 GWh	Apr 2025	Dec 2025	Solar
Skyline	SunStrong Management, LLC	Taylorville, IL	8 GWh	Oct 2024	Dec 2025	Solar
Novel Stein Solar LLC CSG	REA Investments, LLC	Taylors Falls, MN	2 GWh	Aug 2022	Dec 2025	Solar
MSC-Chisago02 LLC	MSC-Chisago02 LLC	Taylors Falls, MN	954 MWh	Jul 2019	Dec 2025	Solar
MSC-Chisago01 LLC CSG	MSC-Chisago01 LLC	Taylors Falls, MN	2 GWh	Jun 2019	Dec 2025	Solar
USS Sunrise Solar LLC CSG	Standard Solar	Taylors Falls, MN	1 GWh	May 2020	Dec 2025	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	433.0 GWh	4
#26	Associated Electric Cooperative, Inc.	22.9 TWh	47
#13	Duke Energy Carolinas	113.4 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	890.9 TWh	2,806
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#5	Southwest Power Pool	314.5 TWh	876
#53	Southwestern Power Administration	3.5 TWh	37
#9	Tennessee Valley Authority	166.2 TWh	209

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	890.9 TWh	2,806
#2	Midcontinent Independent System Operator, Inc.	677.7 TWh	3,095
#3	Electric Reliability Council of Texas, Inc.	506.3 TWh	1,487
#5	Southwest Power Pool	314.5 TWh	876
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#7	California Independent System Operator	168.7 TWh	2,170
#9	Tennessee Valley Authority	166.2 TWh	209
#10	Florida Power & Light Co.	153.0 TWh	188
#12	New York Independent System Operator	134.1 TWh	1,334
#13	Duke Energy Carolinas	113.4 TWh	578