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 2024
Annual Generation	631.0 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 \| 39.8% Coal \| 26.3% Wind \| 15.6% Nuclear \| 14% Solar \| 2.1% Water \| 1.7% Other Fuel \| 0.4%

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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
Wausau	Wisconsin Public Service Corp	Wausau, WI	23 GWh	Feb 1921	Dec 2023	Water
Wautoma Solar	Wisconsin Power & Light Co	Wautoma, WI	134 GWh	Nov 2023	Aug 2024	Solar
Waverly Community Wind Project	Waverly Municipal Elec Utility	Waverly, IA	6 GWh	Nov 2001	Dec 2023	Wind
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%
WaveSun Community Solar	Generate Capital	Waverly, MN	8 GWh	Nov 2017	Dec 2023	Solar
Waxdale	S.C. Johnson & Son, Inc.	Sturtevant, WI	45 GWh	Nov 2003	Aug 2024	Natural Gas : 41.4% Landfill Gas : 40.3% Wind : 13.0% Solar : 5.3%
Way Dam	Wisconsin Electric Power Co	Crystal Falls, MI	6 GWh	Nov 1949	Dec 2023	Water
WCROC Wind Farm	University of Minnesota WCROC	Morris, MN	5 GWh	Feb 2005	Dec 2023	Wind
Webber	Consumers Energy Co - (MI)	Lyons, MI	11 GWh	Dec 1906	Dec 2023	Water
Webster City	City of Webster City - (IA)	Webster City, IA	2 GWh	Mar 1972	Dec 2023	Distillate Fuel Oil
Webster Creek (Oak 2)	Greenbacker Renewable Energy Corporation	New Lisbon, WI	14 MWh	Nov 2023	Dec 2023	Solar
Webster Holdco Solar CSG	Webster Holdco LLC	Webster, MN	8 GWh	Jun 2017	Dec 2023	Solar
Welcome Wind Turbine	Federated Rural Electric Assn	Welcome, MN	5 GWh	Apr 2008	Dec 2023	Wind
Wells IC	City of Wells - (MN)	Wells, MN	128 MWh	Oct 1950	Dec 2023	Natural Gas : 62.7% Distillate Fuel Oil : 37.3%
Wellsburg Wind Project	MidAmerican Energy Co	Wellsburg, IA	442 GWh	Nov 2014	Dec 2023	Wind
West Bend	City of West Bend	West Bent, IA	471 MWh	Nov 1954	Dec 2023	Distillate Fuel Oil
West Campus Cogeneration Facility	Madison Gas & Electric Co	Madison, WI	353 GWh	Mar 2005	Dec 2023	Natural Gas
West Diesel Generation Unit	City of Pocahontas - (IA)	Pocahontas, IA	10 MWh	May 2006	Dec 2023	Distillate Fuel Oil
West Dubuque Solar	Interstate Power and Light Co	Dubuque, IA	6 GWh	Aug 2017	Dec 2023	Solar
West Faribault Solar	Enel Green Power NA, Inc.	Faribault, MN	10 GWh	Nov 2016	Dec 2023	Solar
West Group Data Center	Thomson Corp	Eagan, MN	71 MWh	Apr 2005	Aug 2024	Distillate Fuel Oil
West Group Data Center F	Thomson Corp	Eagan, MN	61 MWh	May 2004	Aug 2024	Distillate Fuel Oil
West Liberty	City of West Liberty - (IA)	West Liberty, IA	39 MWh	Sep 1974	Dec 2023	Distillate Fuel Oil
West Marinette	Wisconsin Public Service Corp	Peshtigo, WI	94 GWh	May 1971	Dec 2023	Natural Gas
West Marinette 34	Madison Gas & Electric Co	Peshtigo, WI	83 GWh	May 2000	Dec 2023	Natural Gas
West Riverside Energy Center	Wisconsin Power & Light Co	Beloit, WI	5 TWh	Apr 2020	Aug 2024	Natural Gas : 99.9%
West Waconia Solar	Enel Green Power NA, Inc.	Norwood Young America, MN	17 GWh	Nov 2016	Dec 2023	Solar
Westbrook	City of Westbrook	Westbrook, MN	6 MWh	Sep 2003	Dec 2023	Distillate Fuel Oil
Western Michigan Solar Gardens	Consumers Energy Co - (MI)	Kalamazoo, MI	2 GWh	Jul 2016	Aug 2024	Solar
Western Michigan University Power Plant	Western Michigan University	Kalamazoo, MI	71 GWh	Jul 1997	Dec 2023	Natural Gas
Westlake Plaquemine	Westlake Chemicals & Vinyls LLC	Plaquemine, LA	2 TWh	Apr 1997	Aug 2024	Natural Gas : 97.1% Other Gas : 2.9%
Weston	Wisconsin Public Service Corp	Rothschild, WI	4 TWh	Nov 1954	Aug 2024	Subbituminous Coal : 99.7%
Weston RICE	Wisconsin Public Service Corp	Kronenwetter, WI	49 GWh	Jun 2023	Dec 2023	Natural Gas
Westport Community Solar, LLC	National Grid Renewables	Lake Lillian, MN	2 GWh	Dec 2020	Dec 2023	Solar
Westridge Windfarm LLC	Westridge Windfarm LLC	Woodstock, MN	4 GWh	Oct 2003	Jan 2023	Wind
Westrock Hodge (LA)	Westrock (LA)	Hodge, LA	412 GWh	Nov 1952	Dec 2023	Black Liquor : 48.0% Natural Gas : 37.4% Wood/Wood Waste Solids : 14.5%
WestRock (TX)	WestRock (TX)	Evadale, TX	407 GWh	May 1954	Dec 2023	Black Liquor : 57.4% Wood/Wood Waste Solids : 24.4% Natural Gas : 18.1%
Westside Energy Station	Rochester Public Utilities	Rochester, MN	48 GWh	Feb 2018	Dec 2023	Natural Gas
Westside Solar	Westside Solar, LLC (Ecofin)	Rochester, MN	17 GWh	Nov 2022	Dec 2023	Solar
Wheatland Generating Facility	Duke Energy Indiana, LLC	Wheatland, IN	83 GWh	May 2000	Dec 2023	Natural Gas
Wheaton	Northern States Power Co - Minnesota	Eau Claire, WI	31 GWh	Dec 1972	Dec 2023	Distillate Fuel Oil : 58.1% Natural Gas : 41.9%
Whillock	Arkansas Electric Coop Corp	Morrilton, AR	135 GWh	Sep 1993	Dec 2023	Water
Whispering Willow North	Interstate Power and Light Co	Latimer, IA	788 GWh	Dec 2019	Aug 2024	Wind
Whispering Willow Wind Farm - East	Interstate Power and Light Co	Iowa Falls, IA	459 GWh	Nov 2009	Dec 2023	Wind
Whistling Winds DPC Solar	SoCore Energy LLC	New Lisbon, WI	3 GWh	May 2017	Aug 2024	Solar
White Bluff	Entergy Arkansas LLC	Redfield, AR	3 TWh	Jul 1980	Aug 2024	Subbituminous Coal : 99.5%
White Oak Energy LLC	White Oak Energy LLC	Carlock, IL	394 GWh	May 2011	Dec 2023	Wind
White Rapids	Wisconsin Electric Power Co	Stephenson, MI	30 GWh	Sep 1927	Dec 2023	Water
White River (WI)	Northern States Power Co - Minnesota	Ashland, WI	5 GWh	Dec 1906	Dec 2023	Water
Whiteside Solar 1 CSG	Whiteside Solar 1, LLC	Fulton, IL	3 GWh	Nov 2020	Dec 2023	Solar
Whiting	Consolidated Water Power Co	Whiting, WI	21 GWh	Dec 1890	Dec 2023	Water
Whiting Clean Energy	BP Alternative Energy	Whiting, IN	3 TWh	Mar 2002	Aug 2024	Natural Gas
Whiting Refinery	BP PLC	Whiting, IN	445 GWh	Dec 1947	Dec 2023	Other Gas : 84.0% Natural Gas : 16.0%
Wildflower Solar, LLC (MS)	Duke Energy Renewables Services	DeSoto, MS	76 GWh	-	Aug 2024	Solar
Willford Solar, LLC	Willford Solar, LLC	Gladwin, MI	1 GWh	Sep 2023	Dec 2023	Solar
Willmar	Willmar Municipal Utilities	Willmar, MN	3 GWh	Aug 1956	Dec 2023	Wind
Willmar Municipal East Substation	Willmar Municipal Utilities	Willmar, MN	14 MWh	May 2000	Dec 2023	Distillate Fuel Oil
Willmar Municipal SW Substation	Willmar Municipal Utilities	Willmar, MN	14 MWh	May 2000	Dec 2023	Distillate Fuel Oil
Wilmarth	Northern States Power Co - Minnesota	Mankato, MN	106 GWh	Aug 1948	Aug 2024	Non-biogenic Municipal Solid Waste : 54.3% Biogenic Municipal Solid Waste : 44.4% Natural Gas : 1.4%
Wilton	City of Wilton - (IA)	Wilton, IA	37 MWh	Dec 1991	Dec 2023	Distillate Fuel Oil
Wilton Wind II LLC	Wilton Wind II LLC	Wilton, ND	187 GWh	Oct 2009	Dec 2023	Wind
Wind GEM	Wind GEM, LLC	Stuart, IA	5 GWh	Aug 2015	Dec 2023	Wind
Wind Turbine	Madison Gas & Electric Co	Casco, WI	15 GWh	May 1999	Dec 2023	Wind
Windcurrent Farms LLC	Windcurrent Farms LLC	Woodstock, MN	5 GWh	Aug 2003	Dec 2023	Wind
Windom	City of Windom	Windom, MN	56 MWh	May 1980	Dec 2023	Distillate Fuel Oil
Windom Wind Project	Midwest Power Partners LLC	Bingham Lake, MN	33 GWh	Feb 2006	Dec 2023	Wind
Windwalkers LLC	Consolidated Edison Development Inc.	Kensett, IA	4 GWh	Aug 2011	Dec 2023	Wind
Winegar CSG	Terraform Arcadia	Waseca, MN	2 GWh	Sep 2018	Dec 2023	Solar
Winnebago County Landfill Gas	Winnebago County	Oshkosh, WI	11 GWh	Jan 2000	Dec 2023	Landfill Gas
Winnebago Wind Power Project	Avangrid Renewables LLC	Forest City, IA	52 GWh	Aug 2008	Dec 2023	Wind
Winona Community Solar One LLC	Madison Energy Holdings LLC	La Crescent, MN	2 GWh	May 2020	Dec 2023	Solar
Winona Garden	Winona Garden LLC	Altura, MN	257 MWh	Oct 2023	Dec 2023	Solar
Winona Solar	Winona Solar I LLC	Altura, MN	7 GWh	Jul 2019	Dec 2023	Solar
Winters Spawn LLC	CHI Operations Inc	Lake Benton, MN	5 GWh	Dec 2000	Dec 2023	Wind
Winterset	City of Winterset - (IA)	Winterset, IA	115 MWh	Jun 1956	Dec 2023	Distillate Fuel Oil : 61.6% Natural Gas : 38.4%
Winton	ALLETE, Inc.	Winton, MN	9 GWh	Jul 1923	Dec 2023	Water
Wiota	Wiota Wind Energy, LLC #1	Wiota, IA	5 GWh	Apr 2012	Dec 2023	Wind
Wisconsin Rapids	Consolidated Water Power Co	Wisconsin Rapids, WI	41 GWh	Dec 1902	Dec 2023	Water
Wissota	Northern States Power Co - Minnesota	Chippewa Falls, WI	133 GWh	Dec 1916	Dec 2023	Water
Wolf Wind Enterprises LLC	Midwest Power Partners LLC	Rushmore, MN	3 GWh	Apr 2006	Dec 2023	Wind
Wollan Garden Solar	Wollan Garden LLC	Starbuck, MN	2 GWh	Jun 2019	Dec 2023	Solar
Wolverine	Wolverine Wind Energy, LLC	Greenfield, IA	4 GWh	Sep 2010	Dec 2023	Wind
Wolverine Solar	Wolverine Solar, LLC	Maynard, MN	59 MWh	Oct 2023	Dec 2023	Solar
Wood County	Wisconsin Power & Light Co	Nekoosa, WI	261 GWh	Nov 2022	Aug 2024	Solar
Woodbury Solar	MN CSG 2, LLC	Woodbury, MN	4 GWh	Jun 2020	Dec 2023	Solar
Woodstock Windfarm	Consolidated Edison Development Inc.	Woodstock, MN	35 GWh	Apr 1999	Dec 2023	Wind
Workman Road Solar Farm, LLC	Workman Road Solar Farm, LLC	Lake City, MI	4 GWh	Nov 2020	Dec 2023	Solar
Worthington	City of Worthington - (MN)	Worthington, MN	10 GWh	Jan 2002	Dec 2023	Wind : 99.5%
Worthington Generation LLC	Hoosier Energy R E C, Inc	Worthington, IN	59 GWh	May 2000	Dec 2023	Natural Gas
Wright Cuddyer CSG	Minnesota Solar CSG 1, LLC	St. Michael, MN	6 GWh	Sep 2018	Dec 2023	Solar
Wright Kirby 1-5 CSG	Standard Solar	Monticello, MN	9 GWh	May 2019	Dec 2023	Solar
WrightSun CSG, LLC	Cypress Creek Renewables	St. Michael, MN	7 GWh	Dec 2017	Dec 2023	Solar
Wyandotte	Wyandotte Municipal Serv Comm	Wyandotte, MI	82 MWh	Dec 1947	Aug 2024	Distillate Fuel Oil
Wyoming 2 CSG, LLC	Ecoplexus, Inc	Wyoming, MN	8 GWh	Feb 2018	Dec 2023	Solar
Zeeland Farm Services	Zeeland Farm Services	Zeeland, MI	13 GWh	Feb 2006	Dec 2023	Other Biomass Gas
Zeeland Generating Station	Consumers Energy Co - (MI)	Zeeland, MI	6 TWh	May 2001	Aug 2024	Natural Gas
Zimmerman Energy	Landfill Energy Systems	Argos, IN	46 GWh	Oct 2014	Aug 2024	Landfill Gas
Zumbro Community Solar Garden	Zumbro Solar LLC	Zumbrota, MN	2 GWh	Mar 2018	Dec 2023	Solar
Zumbro Solar Garden	Zumbro Garden LLC	Kasson, MN	2 GWh	Mar 2020	Dec 2023	Solar
13 Mile Solar, LLC	13 Mile Solar, LLC	Battle Creek, MI	4 GWh	Nov 2020	Dec 2023	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	894.0 GWh	4
#26	Associated Electric Cooperative, Inc.	22.7 TWh	47
#13	Duke Energy Carolinas	110.9 TWh	556
#51	Duke Energy Progress West	4.1 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	33.2 TWh	20
#1	PJM Interconnection, LLC	843.8 TWh	2,305
#21	Public Service Company of Colorado	45.1 TWh	201
#5	Southwest Power Pool	290.4 TWh	762
#53	Southwestern Power Administration	3.5 TWh	31
#9	Tennessee Valley Authority	157.5 TWh	170

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	843.8 TWh	2,305
#2	Midcontinent Independent System Operator, Inc.	631.0 TWh	2,653
#3	Electric Reliability Council of Texas, Inc.	461.0 TWh	1,139
#5	Southwest Power Pool	290.4 TWh	762
#6	Southern Company Services, Inc. - Trans	247.9 TWh	393
#7	California Independent System Operator	191.5 TWh	1,943
#9	Tennessee Valley Authority	157.5 TWh	170
#10	Florida Power & Light Co.	147.7 TWh	159
#12	New York Independent System Operator	130.0 TWh	1,100
#13	Duke Energy Carolinas	110.9 TWh	556