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	Apr 2025
Annual Generation	645.7 TWh
Power Plants	2,653
Utilities	1,202
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 \| 37.5% Coal \| 27.4% Wind \| 15.8% Nuclear \| 14.4% Solar \| 2.7% Water \| 1.7% Other Fuel \| 0.5%

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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
Waxdale	S.C. Johnson & Son, Inc.	Sturtevant, WI	40 GWh	Nov 2003	Jan 2025	Natural Gas : 43.8% Landfill Gas : 36.1% Wind : 11.7% Solar : 8.4%
WaveSun Community Solar	Generate Capital	Waverly, MN	8 GWh	Nov 2017	Dec 2023	Solar
Waverly Municipal Electric North Plant	Waverly Municipal Elec Utility	Waverly, IA	224 MWh	Jul 1958	Dec 2023	Distillate Fuel Oil : 52.5% Natural Gas : 47.5%
Waverly Community Wind Project	Waverly Municipal Elec Utility	Waverly, IA	6 GWh	Nov 2001	Dec 2023	Wind
Wautoma Solar	Wisconsin Power & Light Co	Wautoma, WI	181 GWh	Nov 2023	Jan 2025	Solar
Wausau	Wisconsin Public Service Corp	Wausau, WI	23 GWh	Feb 1921	Dec 2023	Water
Watervliet	EDL Inc	Watervliet, MI	23 GWh	Jan 2013	Dec 2023	Landfill Gas
Waterville CSG Solar Holdings LLC	Altus Power America Management, LLC	Waterville, MN	8 GWh	Feb 2018	Jan 2025	Solar
Waterloo Solar, LLC	AES Distributed Energy	Waterloo, IN	560 MWh	Dec 2011	Dec 2023	Solar
Waterloo Solar (IA)	MidAmerican Energy Co	Waterloo, IA	6 GWh	Feb 2022	Dec 2023	Solar
Waterloo Lundquist	MidAmerican Energy Co	Waterloo, IA	69 MWh	Mar 2000	Dec 2023	Distillate Fuel Oil
Waterloo	City of Waterloo - (IL)	Waterloo, IL	462 MWh	May 1946	Dec 2023	Natural Gas : 73.4% Distillate Fuel Oil : 26.6%
Waterford Holdco CSG	Waterford Holdco LLC	Waterford, MN	4 GWh	Oct 2017	Dec 2023	Solar
Waterford 3	Entergy Louisiana LLC	Killona, LA	7 TWh	Aug 1985	Jan 2025	Nuclear
Waterford 1 & 2	Entergy Louisiana LLC	Killona, LA	240 GWh	Jun 1975	Dec 2023	Natural Gas : 98.7% Distillate Fuel Oil : 1.3%
Water Street Station	City of Bay City - (MI)	Bay City, MI	204 MWh	Jul 1980	Dec 2023	Distillate Fuel Oil : 90.3% Natural Gas : 9.7%
Water Reclamation Plant	City of Rochester	Rochester, MN	3 GWh	Feb 2003	Dec 2023	Other Biomass Gas
Waste Management Northern Oaks LFGTE	WM Renewable Energy LLC	Harrison, MI	8 GWh	Oct 2010	Dec 2023	Landfill Gas
Waste Management Eco Vista LFGTE	WM Renewable Energy LLC	Springdale, AR	7 GWh	Oct 2010	Dec 2023	Natural Gas
Washington Parish Energy Center	Entergy Louisiana LLC	Bogalusa, LA	287 GWh	Oct 2020	Jan 2025	Natural Gas
Washington Island	Washington Island El Coop, Inc	Washington Island, WI	9 MWh	Nov 1945	Dec 2023	Distillate Fuel Oil
Washington County	Wisconsin Electric Power Co	West Bend, WI	4 GWh	Dec 2019	Dec 2023	Solar
WasecaSun	National Grid Renewables	Waseca, MN	10 GWh	Jan 2018	Dec 2023	Solar
Waseca Solar	Enel Green Power NA, Inc.	Waseca, MN	21 GWh	Nov 2016	Dec 2023	Solar
Warsaw Solar CSG	Altus Power America Management, LLC	Morristown, MN	5 GWh	Jun 2020	Dec 2023	Solar
Warrick	AGC Division of APGI Inc	Newburgh, IN	3 TWh	Mar 1960	Jan 2025	Bituminous Coal : 99.1% Natural Gas : 0.9%
Warren DPC Solar	SoCore Energy LLC	Roberts, WI	4 GWh	Apr 2017	Jan 2025	Solar
Warner Lambert	University of Michigan NCampus Research	Ann Arbor, MI	23 GWh	Jul 1989	Jan 2025	Natural Gas
Wapsipinicon Wind Project	EDF Renewable Asset Holdings, Inc.	Dexter, MN	217 GWh	Jan 2009	Dec 2023	Wind
Wapello Solar LLC	Wapello Solar LLC	Wapello, IA	225 GWh	Feb 2021	Jan 2025	Solar
Walton Street Substation	City of Farmington - (MO)	Farmington, MO	12 MWh	Dec 2002	Dec 2023	Distillate Fuel Oil
Walter Scott Jr Energy Center	MidAmerican Energy Co	Council Bluffs, IA	6 TWh	Feb 1954	Jan 2025	Subbituminous Coal : 99.3% Distillate Fuel Oil : 0.6%
Walnut Wind Farm	MidAmerican Energy Co	Walnut, IA	538 GWh	Nov 2008	Dec 2023	Wind
Walnut Bend Solar Station PV	Walnut Bend Solar Station	Moro, AR	59 GWh	-	Jan 2025	Solar
Walleye Wind	Walleye Wind, LLC	Beaver Creek, MN	492 GWh	Nov 2022	Jan 2025	Wind
Walkerton	Indiana Municipal Power Agency	Walkerton, IN	2 GWh	Jun 2022	Dec 2023	Solar
Walcott Solar CSG	Altus Power America Management, LLC	Faribault, MN	9 GWh	Jun 2020	Dec 2023	Solar
WakeSun LLC	SunShare Management	Cold Spring, MN	5 GWh	Dec 2016	Dec 2023	Solar
Wabasha Solar	Wabasha Solar LLC	Wabasha, MN	4 GWh	Jul 2019	Dec 2023	Solar
Wabasha Holdco Solar CSG	Wabasha Holdco LLC	Wabasha, MN	4 GWh	Feb 2017	Dec 2023	Solar
Wabash Valley Power IGCC	Wabash Valley Power Assn, Inc	Terre Haute, IN	485 GWh	Nov 1953	Jan 2025	Natural Gas
Volkman Road Solar Array Hybrid	Southern Indiana Gas & Elec Co	Evansville, IN	2 GWh	Oct 2018	Dec 2023	Solar
Viresco Turtle Lake	Viresco Turtle Lake	Turtle Lake, WI	5 GWh	Aug 2013	Dec 2023	Other Biomass Gas
Viola	Village of Viola - (WI)	Viola, WI	4 MWh	Dec 2001	Dec 2023	Distillate Fuel Oil
Villisca Municipal Power Plant	City of Villisca - (IA)	Villisca, IA	13 MWh	May 2003	Dec 2023	Distillate Fuel Oil
Viking Wind Partners	ALLETE Clean Energy	Lake Wilson, MN	8 GWh	Nov 2003	Dec 2022	Wind
Viking Solar CSG	Viking Solar, LLC	Palmyra, IL	6 GWh	May 2021	Dec 2023	Solar
Vienna Wind Farm	MidAmerican Energy Co	Marshalltown, IA	403 GWh	Oct 2012	Dec 2023	Wind
Victory Wind Farm	MidAmerican Energy Co	Westside, IA	375 GWh	Nov 2006	Dec 2023	Wind
Victoria Dam	Upper Peninsula Power Company	Rockland, MI	53 GWh	Dec 1930	Dec 2023	Water
Vestaburg	Wolverine Power Supply Coop	Vestaburg, MI	1 GWh	Dec 1958	Dec 2023	Natural Gas : 99.6%
Veseli Community Solar Garden	Veseli Solar I LLC	Webster, MN	1 GWh	Jan 2018	Dec 2023	Solar
Vermillion River_MN_GRE DEA-GM	SoCore Energy LLC	Farmington, MN	5 GWh	Nov 2019	Dec 2023	Solar
Vermillion Energy Facility	Duke Energy Ohio Inc	Cayuga, IN	569 GWh	May 2000	Dec 2023	Natural Gas
Vermilion Solar 1, LLC CSG	Vermilion Solar 1, LLC	Danville, IL	4 GWh	Nov 2020	Dec 2023	Solar
Veolia ES Blackfoot Landfill Facility	Southern Indiana Gas & Elec Co	Winslow, IN	9 GWh	May 2009	Dec 2023	Landfill Gas
Venus Wind 3 LLC	Venus Wind 3 LLC	Grinnell, IA	5 GWh	Feb 2017	Dec 2023	Wind
Venice Resources Gas Recovery	WM Renewable Energy LLC	Lennon, MI	11 GWh	Feb 1992	Dec 2023	Landfill Gas
Venice	Union Electric Co - (MO)	Venice, IL	14 GWh	May 2002	Dec 2023	Natural Gas
Velva Windfarm LLC	Acciona Wind Energy USA LLC	Velva, ND	24 GWh	Nov 2005	Dec 2023	Wind
Vega Community Solar	Vega Community Solar	Glenwood, MN	8 GWh	Sep 2017	Dec 2023	Solar
Valparaiso Solar, LLC	AES Distributed Energy	Valparaiso, IN	793 MWh	Nov 2012	Dec 2023	Solar
Valley (WI)	Wisconsin Electric Power Co	Milwaukee, WI	436 GWh	May 1968	Jan 2025	Natural Gas
Valley View Transmission LLC	Consolidated Edison Development Inc.	Chandler, MN	20 GWh	Jun 2011	Dec 2023	Wind
Valley Queen Cheese	Valley Queen Cheese Factory, Inc.	Milbank, SD	31 MWh	Mar 2002	Dec 2024	Distillate Fuel Oil
UW Parkside	Wisconsin Electric Power Co	Kenosha, WI	4 GWh	Oct 2020	Dec 2023	Solar
USS Wonder Solar LLC	United States Solar Corporation	Bird Island, MN	759 MWh	Jun 2023	Dec 2023	Solar
USS Wolf Solar LLC	United States Solar Corporation	Wood Lake, MN	1 GWh	Jun 2023	Dec 2023	Solar
USS Wildcat Solar LLC	United States Solar Corporation	Goodhue, MN	2 GWh	Oct 2021	Dec 2023	Solar
USS White Cloud LLC CSG	Standard Solar	St. Cloud, MN	2 GWh	Oct 2019	Dec 2023	Solar
USS Westeros Solar LLC CSG	Standard Solar	Belle Plaine, MN	2 GWh	May 2020	Dec 2023	Solar
USS Wells Creek Solar LLC	United States Solar Corporation	Goodhue, MN	2 GWh	Dec 2022	Dec 2023	Solar
USS Webster Solar CSG	Standard Solar	Webster, MN	2 GWh	Apr 2019	Dec 2023	Solar
USS Water Town Solar LLC CSG	United States Solar Corporation	Waterville, MN	2 GWh	Oct 2021	Dec 2023	Solar
USS Water Fowl Solar LLC CSG	United States Solar Corporation	Silver Lake, MN	875 MWh	Aug 2022	Dec 2023	Solar
USS Water City Solar LLC CSG	United States Solar Corporation	Waterville, MN	2 GWh	Sep 2021	Dec 2023	Solar
USS Viceroy Solar LLC CSG	United States Solar Corporation	Brooten, MN	2 GWh	Dec 2020	Dec 2023	Solar
USS Verde Solar LLC CSG	Standard Solar	Morgan, MN	2 GWh	Sep 2020	Dec 2023	Solar
USS Verbena Solar LLC	United States Solar Corporation	Stewart, MN	2 GWh	Sep 2022	Dec 2023	Solar
USS Turkey Solar LLC CSG	Standard Solar	Atwater, MN	2 GWh	Dec 2019	Dec 2023	Solar
USS Sunrise Solar LLC CSG	Standard Solar	Taylors Falls, MN	2 GWh	May 2020	Dec 2023	Solar
USS Steamboat Solar LLC CSG	Standard Solar	Morgan, MN	2 GWh	Mar 2021	Dec 2023	Solar
USS Solar Way LLC CSG	Standard Solar	Hartland, MN	2 GWh	Oct 2020	Dec 2023	Solar
USS Solar Sources LLC CSG	Standard Solar	Scandia, MN	2 GWh	Sep 2020	Dec 2023	Solar
USS Solar Rapids CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Dec 2018	Dec 2023	Solar
USS Solar Dawn CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Dec 2023	Solar
USS Solar Brick	Standard Solar	Standard City, IL	5 GWh	May 2021	Dec 2023	Solar
USS Rosebud Solar LLC	United States Solar Corporation	Morgan, MN	2 GWh	Jul 2022	Dec 2023	Solar
USS Rockpoint Solar CSG	United States Solar Corporation	Stacy, MN	2 GWh	Nov 2018	Dec 2023	Solar
USS Reindeer Solar LLC CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Nov 2020	Dec 2023	Solar
USS Quail Solar LLC	United States Solar Corporation	Monticello, MN	2 GWh	Dec 2021	Dec 2023	Solar
USS Prokosch Solar LLC	United States Solar Corporation	Bird Island, MN	2 GWh	May 2022	Dec 2023	Solar
USS Pheasant Solar LLC CSG	United States Solar Corporation	Clara City, MN	2 GWh	Oct 2020	Dec 2023	Solar
USS Peach Solar LLC	United States Solar Corporation	Mankato, MN	2 GWh	Jun 2022	Dec 2023	Solar
USS Norelius Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Dec 2018	Dec 2023	Solar
USS Nillie Corn Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Dec 2023	Solar
USS Monarch Solar LLC CSG	Standard Solar	Brooten, MN	2 GWh	Nov 2019	Dec 2023	Solar
USS Milkweed Solar LLC CSG	Standard Solar	Paynesville, MN	2 GWh	May 2020	Dec 2023	Solar
USS Midtown Solar LLC CSG	Standard Solar	Melrose, MN	2 GWh	Nov 2019	Dec 2023	Solar
USS Mesa Solar LLC	United States Solar Corporation	Danube, MN	2 GWh	Dec 2022	Dec 2023	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	755.2 GWh	4
#26	Associated Electric Cooperative, Inc.	22.8 TWh	47
#13	Duke Energy Carolinas	111.3 TWh	556
#51	Duke Energy Progress West	4.2 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	34.0 TWh	20
#1	PJM Interconnection, LLC	858.7 TWh	2,305
#20	Public Service Company of Colorado	48.5 TWh	201
#5	Southwest Power Pool	296.2 TWh	762
#52	Southwestern Power Administration	3.9 TWh	31
#9	Tennessee Valley Authority	159.0 TWh	170

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	858.7 TWh	2,305
#2	Midcontinent Independent System Operator, Inc.	645.7 TWh	2,653
#3	Electric Reliability Council of Texas, Inc.	472.6 TWh	1,139
#5	Southwest Power Pool	296.2 TWh	762
#6	Southern Company Services, Inc. - Trans	252.1 TWh	393
#7	California Independent System Operator	188.8 TWh	1,943
#9	Tennessee Valley Authority	159.0 TWh	170
#10	Florida Power & Light Co.	147.9 TWh	159
#12	New York Independent System Operator	131.1 TWh	1,100
#13	Duke Energy Carolinas	111.3 TWh	556