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
USS Verde Solar LLC CSG	Standard Solar	Morgan, MN	2 GWh	Sep 2020	Dec 2025	Solar
USS Viceroy Solar LLC CSG	United States Solar Corporation	Brooten, MN	2 GWh	Dec 2020	Dec 2025	Solar
USS Water City Solar LLC CSG	United States Solar Corporation	Waterville, MN	2 GWh	Sep 2021	Dec 2025	Solar
USS Water Fowl Solar LLC CSG	United States Solar Corporation	Silver Lake, MN	807 MWh	Aug 2022	Dec 2025	Solar
USS Water Town Solar LLC CSG	United States Solar Corporation	Waterville, MN	2 GWh	Oct 2021	Dec 2025	Solar
USS Webster Solar CSG	Standard Solar	Webster, MN	2 GWh	Apr 2019	Dec 2025	Solar
USS Wells Creek Solar LLC	United States Solar Corporation	Goodhue, MN	2 GWh	Dec 2022	Dec 2025	Solar
USS Westeros Solar LLC CSG	Standard Solar	Belle Plaine, MN	2 GWh	May 2020	Dec 2025	Solar
USS White Cloud LLC CSG	Standard Solar	St. Cloud, MN	2 GWh	Oct 2019	Dec 2025	Solar
USS Wildcat Solar LLC	United States Solar Corporation	Goodhue, MN	2 GWh	Oct 2021	Dec 2025	Solar
USS Wolf Solar LLC	United States Solar Corporation	Wood Lake, MN	2 GWh	Jun 2023	Dec 2025	Solar
USS Wonder Solar LLC	United States Solar Corporation	Bird Island, MN	2 GWh	Jun 2023	Dec 2025	Solar
UW Kegonsa Customer Hosted Solar	Wisconsin Power & Light Co	Stoughton, WI	2 GWh	Apr 2025	Dec 2025	Solar
UW Parkside	Wisconsin Electric Power Co	Kenosha, WI	4 GWh	Oct 2020	Dec 2025	Solar
Valley Queen Cheese	Valley Queen Cheese Factory, Inc.	Milbank, SD	20 MWh	Mar 2002	Apr 2026	Distillate Fuel Oil
Valley View Transmission LLC	RWE Clean Energy	Chandler, MN	4 GWh	Jun 2011	Dec 2025	Wind
Valley (WI)	Wisconsin Electric Power Co	Milwaukee, WI	327 GWh	May 1968	Jul 2026	Natural Gas
Valparaiso Solar, LLC	AES Distributed Energy	Valparaiso, IN	427 MWh	Nov 2012	Oct 2025	Solar
Vandalia Renewable Energy Center	Union Electric Co - (MO)	Vandalia, MO	74 GWh	Oct 2025	Jul 2026	Solar
Vega Community Solar	Vega Community Solar	Glenwood, MN	8 GWh	Sep 2017	Dec 2025	Solar
Velva Windfarm LLC	Acciona Wind Energy USA LLC	Velva, ND	20 GWh	Nov 2005	Dec 2025	Wind
Venice	Union Electric Co - (MO)	Venice, IL	18 GWh	May 2002	Dec 2025	Natural Gas
Venice Resources Gas Recovery	WM Renewable Energy LLC	Lennon, MI	13 GWh	Feb 1992	Dec 2025	Landfill Gas
Venus Wind 3 LLC	Novis Renewables, LLC	Grinnell, IA	9 GWh	Feb 2017	Dec 2025	Wind
Veolia ES Blackfoot Landfill Facility	Southern Indiana Gas & Elec Co	Winslow, IN	4 GWh	May 2009	Dec 2025	Landfill Gas
Veolia (Gum Springs)	Today's Power, Inc.	Arkadelphia, AR	10 GWh	Jul 2024	Dec 2025	Solar
Vermilion Solar 1, LLC CSG	Vermilion Solar 1, LLC	Danville, IL	4 GWh	Nov 2020	Dec 2025	Solar
Vermillion Energy Facility	Duke Energy Ohio Inc	Cayuga, IN	422 GWh	May 2000	Dec 2025	Natural Gas
Vermillion River_MN_GRE DEA-GM	SoCore Energy LLC	Farmington, MN	5 GWh	Nov 2019	Dec 2025	Solar
Veseli Community Solar Garden	Veseli Solar I LLC	Webster, MN	2 GWh	Jan 2018	Dec 2025	Solar
Vestaburg	Wolverine Power Supply Coop	Vestaburg, MI	4 GWh	Dec 1958	Dec 2025	Natural Gas
Victoria Dam	Upper Peninsula Power Company	Rockland, MI	54 GWh	Dec 1930	Dec 2025	Water
Victory Wind Farm	MidAmerican Energy Co	Westside, IA	384 GWh	Nov 2006	Dec 2025	Wind
Vienna Wind Farm	MidAmerican Energy Co	Marshalltown, IA	622 GWh	Oct 2012	Dec 2025	Wind
Viking Solar CSG	Viking Solar, LLC	Palmyra, IL	4 GWh	May 2021	Dec 2025	Solar
Villisca Municipal Power Plant	City of Villisca - (IA)	Villisca, IA	22 MWh	May 2003	Dec 2025	Distillate Fuel Oil
Viola	Village of Viola - (WI)	Viola, WI	15 MWh	Dec 2001	Dec 2025	Distillate Fuel Oil
Viola	OneEnergy, Inc.	Webster, WI	65 MWh	Nov 2025	Dec 2025	Solar
Viresco Turtle Lake	Viresco Turtle Lake	Turtle Lake, WI	8 GWh	Aug 2013	Dec 2025	Other Biomass Gas
Volkman Road Solar Array Hybrid	Southern Indiana Gas & Elec Co	Evansville, IN	3 GWh	Oct 2018	Dec 2025	Solar
Wabash Valley Power IGCC	Wabash Valley Power Assn, Inc	Terre Haute, IN	477 GWh	Nov 1953	Jul 2026	Natural Gas
Wabasha Holdco Solar CSG	Wabasha Holdco LLC	Wabasha, MN	3 GWh	Feb 2017	Dec 2025	Solar
Wabasha Solar	Wabasha Solar LLC	Wabasha, MN	3 GWh	Jul 2019	Dec 2025	Solar
WakeSun LLC	SunShare Management	Cold Spring, MN	5 GWh	Dec 2016	Dec 2025	Solar
Walcott Solar CSG	Altus Power America Management, LLC	Faribault, MN	8 GWh	Jun 2020	Dec 2025	Solar
Walkerton	Indiana Municipal Power Agency	Walkerton, IN	2 GWh	Jun 2022	Dec 2025	Solar
Walleye (Dunn 2)	Greenbacker Renewable Energy Corporation	Colefax, WI	3 GWh	Jan 2024	Dec 2025	Solar
Walleye Wind	Walleye Wind, LLC	Beaver Creek, MN	457 GWh	Nov 2022	Jul 2026	Wind
Walnut Bend Solar Station PV	Entergy Arkansas LLC	Moro, AR	203 GWh	Aug 2024	Jul 2026	Solar
Walnut Wind Farm	MidAmerican Energy Co	Walnut, IA	558 GWh	Nov 2008	Dec 2025	Wind
Walter Scott Jr Energy Center	MidAmerican Energy Co	Council Bluffs, IA	7 TWh	Feb 1954	Jul 2026	Subbituminous Coal : 99.3% Distillate Fuel Oil : 0.6%
Walton Street Substation	City of Farmington - (MO)	Farmington, MO	7 MWh	Dec 2002	Dec 2025	Distillate Fuel Oil
Wapello Solar LLC	Wapello Solar LLC	Wapello, IA	203 GWh	Feb 2021	Jul 2026	Solar
Wapsipinicon Wind Project	EDF Renewable Asset Holdings, Inc.	Dexter, MN	268 GWh	Jan 2009	Dec 2025	Wind
Warner Lambert	University of Michigan NCampus Research	Ann Arbor, MI	24 GWh	Jul 1989	Jul 2026	Natural Gas
Warren DPC Solar	SoCore Energy LLC	Roberts, WI	4 GWh	Apr 2017	Jul 2026	Solar
Warrick	AGC Division of APGI Inc	Newburgh, IN	3 TWh	Mar 1960	Jul 2026	Bituminous Coal : 97.9% Natural Gas : 2.1%
Warsaw Solar CSG	Altus Power America Management, LLC	Morristown, MN	4 GWh	Jun 2020	Dec 2025	Solar
Waseca Solar	Enel Green Power NA, Inc.	Waseca, MN	21 GWh	Nov 2016	Dec 2025	Solar
WasecaSun	Geronimo Power	Waseca, MN	9 GWh	Jan 2018	Dec 2025	Solar
Washington County	Wisconsin Electric Power Co	West Bend, WI	4 GWh	Dec 2019	Dec 2025	Solar
Washington Island	Washington Island El Coop, Inc	Washington Island, WI	5 MWh	Nov 1945	Dec 2025	Distillate Fuel Oil
Washington Parish Energy Center	Entergy Louisiana LLC	Bogalusa, LA	290 GWh	Oct 2020	Jul 2026	Natural Gas
Waste Management Eco Vista LFGTE	WM Renewable Energy LLC	Springdale, AR	22 GWh	Oct 2010	Dec 2025	Natural Gas
Waste Management Northern Oaks LFGTE	WM Renewable Energy LLC	Harrison, MI	9 GWh	Oct 2010	Dec 2025	Landfill Gas
Water Reclamation Plant	City of Rochester - (MN)	Rochester, MN	4 GWh	Feb 2003	Dec 2025	Other Biomass Gas : 99.8%
Water Street Station	City of Bay City - (MI)	Bay City, MI	1 GWh	Jul 1980	Dec 2025	Natural Gas : 90.5% Distillate Fuel Oil : 9.5%
Waterford 1 & 2	Entergy Louisiana LLC	Killona, LA	339 GWh	Jun 1975	Dec 2025	Natural Gas : 98.8% Distillate Fuel Oil : 1.2%
Waterford 3	Entergy Louisiana LLC	Killona, LA	10 TWh	Aug 1985	Jul 2026	Nuclear
Waterford Holdco CSG	Waterford Holdco LLC	Waterford, MN	4 GWh	Oct 2017	Dec 2025	Solar
Waterloo	City of Waterloo - (IL)	Waterloo, IL	751 MWh	May 1946	Dec 2025	Natural Gas : 73.6% Distillate Fuel Oil : 26.4%
Waterloo Lundquist	MidAmerican Energy Co	Waterloo, IA	255 MWh	Mar 2000	Dec 2025	Distillate Fuel Oil
Waterloo Solar (IA)	MidAmerican Energy Co	Waterloo, IA	6 GWh	Feb 2022	Dec 2025	Solar
Waterloo Solar, LLC	AES Distributed Energy	Waterloo, IN	584 MWh	Dec 2011	Jan 2025	Solar
Waterville CSG Solar Holdings LLC	Altus Power America Management, LLC	Waterville, MN	8 GWh	Feb 2018	Jul 2026	Solar
Watervliet	Energy Developments, Inc d/b/a EDL	Watervliet, MI	26 GWh	Jan 2013	Dec 2025	Landfill Gas
Wausau	Wisconsin Public Service Corp	Wausau, WI	24 GWh	Feb 1921	Dec 2025	Water
Wautoma Solar	Wisconsin Power & Light Co	Wautoma, WI	192 GWh	Nov 2023	Jul 2026	Solar
Waverly Community Wind Project	Waverly Municipal Elec Utility - (IA)	Waverly, IA	4 GWh	Nov 2001	Dec 2025	Wind
Waverly Municipal Electric North Plant	Waverly Municipal Elec Utility - (IA)	Waverly, IA	212 MWh	Jul 1958	Dec 2025	Distillate Fuel Oil : 67.7% Natural Gas : 32.3%
WaveSun Community Solar	Generate Capital	Waverly, MN	8 GWh	Nov 2017	Dec 2025	Solar
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%
Way Dam	Wisconsin Electric Power Co	Crystal Falls, MI	6 GWh	Nov 1949	Dec 2025	Water
WCROC Wind Farm	University of Minnesota WCROC	Morris, MN	1 GWh	Feb 2005	Dec 2025	Wind
Webber	Consumers Energy Co - (MI)	Lyons, MI	10 GWh	Dec 1906	Dec 2025	Water
Webster City	City of Webster City - (IA)	Webster City, IA	383 MWh	Mar 1972	Dec 2025	Distillate Fuel Oil
Webster Creek (Oak 2)	Greenbacker Renewable Energy Corporation	New Lisbon, WI	3 GWh	Nov 2023	Dec 2025	Solar
Webster Holdco Solar CSG	Webster Holdco LLC	Webster, MN	8 GWh	Jun 2017	Dec 2025	Solar
Welcome Wind Turbine	Federated Rural Electric Assn	Welcome, MN	3 GWh	Apr 2008	Dec 2025	Wind
Wells IC	City of Wells - (MN)	Wells, MN	437 MWh	Oct 1950	Dec 2025	Natural Gas : 67.1% Distillate Fuel Oil : 32.9%
Wellsburg Wind Project	MidAmerican Energy Co	Wellsburg, IA	305 GWh	Nov 2014	Dec 2025	Wind
West Bend	City of West Bend - (IA)	West Bent, IA	68 MWh	Nov 1954	Dec 2025	Distillate Fuel Oil
West Campus Cogeneration Facility	Madison Gas & Electric Co	Madison, WI	305 GWh	Mar 2005	Dec 2025	Natural Gas
West Diesel Generation Unit	City of Pocahontas - (IA)	Pocahontas, IA	4 MWh	May 2006	Dec 2025	Distillate Fuel Oil
West Dubuque Solar	Interstate Power and Light Co	Dubuque, IA	6 GWh	Aug 2017	Dec 2025	Solar
West Faribault Solar	Enel Green Power NA, Inc.	Faribault, MN	10 GWh	Nov 2016	Dec 2025	Solar
West Group Data Center	CADC MSP01, LLC	Eagan, MN	37 MWh	Apr 2005	Jul 2026	Distillate Fuel Oil
West Liberty	City of West Liberty - (IA)	West Liberty, IA	234 MWh	Sep 1974	Dec 2025	Distillate Fuel Oil
West Marinette	Wisconsin Public Service Corp	Peshtigo, WI	90 GWh	May 1971	Dec 2025	Natural Gas
West Marinette 34	Madison Gas & Electric Co	Peshtigo, WI	85 GWh	May 2000	Dec 2025	Natural Gas

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