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 2026
Annual Generation	664.4 TWh
Power Plants	2,831
Utilities	1,296
Ranked #2 out of 65 in terms of net annual generation
Ranked #2 out of 54 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 36.9% Coal \| 27.6% Wind \| 14.8% Nuclear \| 13.6% Solar \| 5% 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
Waterloo	City of Waterloo - (IL)	Waterloo, IL	491 MWh	May 1946	Dec 2024	Natural Gas : 68.9% Distillate Fuel Oil : 31.1%
Waterloo Solar, LLC	AES Distributed Energy	Waterloo, IN	592 MWh	Dec 2011	Dec 2024	Solar
Waterloo Solar (IA)	MidAmerican Energy Co	Waterloo, IA	6 GWh	Feb 2022	Dec 2024	Solar
Waterloo Lundquist	MidAmerican Energy Co	Waterloo, IA	38 MWh	Mar 2000	Dec 2024	Distillate Fuel Oil
Electrifarm	MidAmerican Energy Co	Waterloo, IA	11 GWh	Apr 1975	Dec 2024	Natural Gas
Nesvold Watertown Solar	SoCore Energy LLC	Watertown, MN	9 GWh	Dec 2017	Dec 2024	Solar
Crowned Ridge Wind Energy Center	Crowned Ridge Wind, LLC	Watertown, SD	788 GWh	Nov 2019	Feb 2026	Wind
Crowned Ridge Wind II Energy Center	Northern States Power Co - Minnesota	Watertown, SD	848 GWh	Nov 2020	Feb 2026	Wind
Concord	Wisconsin Electric Power Co	Watertown, WI	175 GWh	Jun 1993	Dec 2024	Natural Gas : 99.8%
Deertrack Park Gas Recovery	WM Renewable Energy LLC	Watertown, WI	37 GWh	Jan 2006	Dec 2024	Landfill Gas
Novel Peter Solar CSG	REA Investments, LLC	Waterville, MN	2 GWh	Aug 2021	Dec 2024	Solar
LeSun CSG, LLC	Cypress Creek Renewables	Waterville, MN	8 GWh	Dec 2017	Dec 2024	Solar
Marigold Community Solar Garden, LLC	National Grid Renewables	Waterville, MN	2 GWh	Dec 2020	Dec 2024	Solar
Lyra Community Solar	Lyra Community Solar	Waterville, MN	5 GWh	Jan 2018	Dec 2024	Solar
Waterville CSG Solar Holdings LLC	Altus Power America Management, LLC	Waterville, MN	8 GWh	Feb 2018	Feb 2026	Solar
USS Water Town Solar LLC CSG	United States Solar Corporation	Waterville, MN	2 GWh	Oct 2021	Dec 2024	Solar
USS Water City Solar LLC CSG	United States Solar Corporation	Waterville, MN	2 GWh	Sep 2021	Dec 2024	Solar
Watervliet	Energy Developments, Inc d/b/a EDL	Watervliet, MI	28 GWh	Jan 2013	Dec 2024	Landfill Gas
Iroquois Solar 1B LLC CSG	Iroquois Solar 1B LLC	Watseka, IL	4 GWh	Nov 2020	Dec 2024	Solar
Galactic Wind	Galactic Wind	Waunakee, WI	22 GWh	Nov 2012	Dec 2024	Wind
Wausau	Wisconsin Public Service Corp	Wausau, WI	19 GWh	Feb 1921	Dec 2024	Water
Wautoma Solar	Wisconsin Power & Light Co	Wautoma, WI	190 GWh	Nov 2023	Feb 2026	Solar
Waverly Community Wind Project	Waverly Municipal Elec Utility	Waverly, IA	6 GWh	Nov 2001	Dec 2024	Wind
Waverly Municipal Electric North Plant	Waverly Municipal Elec Utility	Waverly, IA	232 MWh	Jul 1958	Dec 2024	Distillate Fuel Oil : 55.1% Natural Gas : 44.9%
South Plant (IA)	Waverly Municipal Elec Utility	Waverly, IA	51 MWh	Apr 2000	Dec 2024	Distillate Fuel Oil
WaveSun Community Solar	Generate Capital	Waverly, MN	8 GWh	Nov 2017	Dec 2024	Solar
Webster City	City of Webster City - (IA)	Webster City, IA	809 MWh	Mar 1972	Dec 2024	Distillate Fuel Oil
Schultz CSG	DG Minnesota CSG, LLC	Webster, MN	3 GWh	Oct 2018	Dec 2024	Solar
Veseli Community Solar Garden	Veseli Solar I LLC	Webster, MN	2 GWh	Jan 2018	Dec 2024	Solar
Webster Holdco Solar CSG	Webster Holdco LLC	Webster, MN	7 GWh	Jun 2017	Dec 2024	Solar
USS Centerfield Solar CSG	Standard Solar	Webster, MN	2 GWh	Oct 2019	Dec 2024	Solar
USS Webster Solar CSG	Standard Solar	Webster, MN	2 GWh	Apr 2019	Dec 2024	Solar
Prairie Island	Northern States Power Co - Minnesota	Welch, MN	9 TWh	Jan 1974	Feb 2026	Nuclear
Welcome Wind Turbine	Federated Rural Electric Assn	Welcome, MN	6 GWh	Apr 2008	Sep 2024	Wind
Wells IC	City of Wells - (MN)	Wells, MN	180 MWh	Oct 1950	Dec 2024	Natural Gas : 64.3% Distillate Fuel Oil : 35.7%
Wellsburg Wind Project	MidAmerican Energy Co	Wellsburg, IA	469 GWh	Nov 2014	Dec 2024	Wind
Ivester Wind Farm	MidAmerican Energy Co	Wellsburg, IA	320 GWh	Nov 2018	Feb 2026	Wind
C W Tippy	Consumers Energy Co - (MI)	Wellston, MI	54 GWh	Dec 1917	Dec 2024	Water
Sioux	Union Electric Co - (MO)	West Alton, MO	4 TWh	Apr 1967	Feb 2026	Subbituminous Coal : 77.4% Bituminous Coal : 22.5%
LA3 West Baton Rouge Solar Facility	Sol Systems	West Baton Rouge, LA	113 GWh	Aug 2020	Feb 2026	Solar
Washington County	Wisconsin Electric Power Co	West Bend, WI	4 GWh	Dec 2019	Dec 2024	Solar
Regal Ware	Wisconsin Electric Power Co	West Bend, WI	3 GWh	Mar 2021	Dec 2024	Solar
West Bend	City of West Bend	West Bent, IA	174 MWh	Nov 1954	Dec 2024	Distillate Fuel Oil
Kern A Community Solar, LLC CSG	Kern A Community Solar, LLC	West Frankfort, IL	4 GWh	Jun 2021	Dec 2024	Solar
Long Lake Solar, LLC	Long Lake Solar, LLC	West Helena, AR	433 GWh	-	Feb 2026	Solar
Purdue CHP	Duke Energy Indiana, LLC	West Lafayette, IN	123 GWh	Feb 2022	Dec 2024	Natural Gas
Tippecanoe Solar Power Plant	Duke Energy Indiana, LLC	West Lafayette, IN	3 GWh	Nov 2019	Nov 2024	Solar
Purdue University	Purdue University	West Lafayette, IN	99 GWh	Dec 1968	Feb 2026	Natural Gas : 92.5% Bituminous Coal : 7.5%
Lake Charles Power	Entergy Louisiana LLC	West Lake, LA	7 TWh	Feb 2020	Feb 2026	Natural Gas
West Liberty	City of West Liberty - (IA)	West Liberty, IA	38 MWh	Sep 1974	Dec 2024	Distillate Fuel Oil
Plant 31 Paper Mill	Graphic Packaging International	West Monroe, LA	523 GWh	Dec 1963	Dec 2024	Natural Gas : 63.2% Black Liquor : 25.1% Wood/Wood Waste Solids : 11.7%
J H Campbell	Consumers Energy Co - (MI)	West Olive, MI	7 TWh	Sep 1962	Feb 2026	Subbituminous Coal : 99.7%
Sugar Creek Power	Northern Indiana Pub Serv Co	West Terre Haute, IN	4 TWh	May 2002	Feb 2026	Natural Gas
McDonald Solar Farm, LLC	Cypress Creek Renewables	West Terre Haute, IN	8 GWh	Nov 2015	Dec 2024	Solar
Westbrook	City of Westbrook	Westbrook, MN	9 MWh	Sep 2003	Dec 2024	Distillate Fuel Oil
R S Nelson	Entergy Louisiana LLC	Westlake, LA	2 TWh	Jan 1959	Feb 2026	Subbituminous Coal : 99.7%
Lake Charles Polymers	Equistar Chemicals LP	Westlake, LA	195 GWh	Aug 2011	Feb 2026	Natural Gas
Victory Wind Farm	MidAmerican Energy Co	Westside, IA	378 GWh	Nov 2006	Dec 2024	Wind
Nine Mile Point	Entergy Louisiana LLC	Westwego, LA	8 TWh	Oct 1955	Feb 2026	Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
Wever Solar (150MW)	Interstate Power and Light Co	Wever, IA	265 GWh	Oct 2024	Feb 2026	Solar
Timberline Trail Gas Recovery	WM Renewable Energy LLC	Weyerhaeser, WI	19 GWh	Jan 2006	Dec 2024	Landfill Gas
R M Schahfer	Northern Indiana Pub Serv Co	Wheatfield, IN	1 TWh	Nov 1976	Feb 2026	Bituminous Coal : 94.3% Natural Gas : 5.7%
Dunns Bridge I Solar	Dunns Bridge Solar Center LLC	Wheatfield, IN	507 GWh	May 2023	Feb 2026	Solar
Wheatland	Origis Energy USA, Inc	Wheatland, IN	19 GWh	-	Feb 2026	Solar
Wheatland Generating Facility	Duke Energy Indiana, LLC	Wheatland, IN	131 GWh	May 2000	Dec 2024	Natural Gas
Flat Fork Solar	Flat Fork Solar, LLC	Wheatley, AR	208 GWh	-	Feb 2026	Solar
Ridgeview	WM Renewable Energy LLC	Whitelaw, WI	36 GWh	Aug 2002	Dec 2024	Landfill Gas
Whitewater Generating Station	Wisconsin Electric Power Co	Whitewater, WI	863 GWh	Aug 1997	Sep 2025	Natural Gas
Whiting Refinery	BP PLC	Whiting, IN	360 GWh	Dec 1947	Dec 2024	Other Gas : 81.0% Natural Gas : 19.0%
Whiting Clean Energy	BP Alternative Energy	Whiting, IN	3 TWh	Mar 2002	Feb 2026	Natural Gas
Whiting	Consolidated Water Power Co	Whiting, WI	25 GWh	Dec 1890	Dec 2024	Water
Elba Solar LLC	Elba Solar LLC	Williamsfield, IL	4 GWh	Jan 2023	Dec 2024	Solar
Lewis Creek	Entergy Texas Inc.	Willis, TX	2 TWh	Nov 1970	Feb 2026	Natural Gas
Montgomery County	Entergy Texas Inc.	Willis, TX	6 TWh	Dec 2020	Feb 2026	Natural Gas
Willmar Municipal East Substation	Willmar Municipal Utilities	Willmar, MN	23 MWh	May 2000	Dec 2024	Distillate Fuel Oil
Willmar Municipal SW Substation	Willmar Municipal Utilities	Willmar, MN	22 MWh	May 2000	Dec 2024	Distillate Fuel Oil
Willmar	Willmar Municipal Utilities	Willmar, MN	5 GWh	Aug 1956	Jul 2024	Wind
Noble Ridge LLC	RENEW Energy Inc	Wilmont, MN	61 MWh	Nov 2001	Dec 2024	Wind
Nobles 2 Wind Project	Nobles 2 Power Partners, LLC	Wilmont, MN	950 GWh	Nov 2020	Feb 2026	Wind
Rivercrest SD	Entegrity Solar Rivercrest SD, LLC	Wilson, AR	2 GWh	Feb 2022	Dec 2024	Solar
Eastern Iowa Solar	Central Iowa Power Cooperative	Wilton, IA	3 GWh	Oct 2016	Dec 2024	Solar
Wilton	City of Wilton - (IA)	Wilton, IA	9 MWh	Dec 1991	Dec 2024	Distillate Fuel Oil
FPL Energy Burleigh County Wind	FPL Energy Burleigh County Wind LLC	Wilton, ND	190 GWh	Nov 2005	Dec 2024	Wind
Wilton Wind II LLC	Wilton Wind II LLC	Wilton, ND	200 GWh	Oct 2009	Dec 2024	Wind
Baldwin Wind LLC	Baldwin Wind LLC	Wilton, ND	381 GWh	Nov 2010	Dec 2024	Wind
Windom	City of Windom	Windom, MN	23 MWh	May 1980	Dec 2024	Distillate Fuel Oil
Winfield Solar	Winfield Solar I, LLC	Winfield, MO	219 GWh	-	Feb 2026	Solar
Stockton (MN)	Greenbacker Renewable Energy Corporation	Winona, MN	4 GWh	Oct 2021	Dec 2024	Solar
Veolia ES Blackfoot Landfill Facility	Southern Indiana Gas & Elec Co	Winslow, IN	7 GWh	May 2009	Dec 2024	Landfill Gas
Eichtens II CSG	Terraform Arcadia	Winstead, MN	2 GWh	Aug 2018	Dec 2024	Solar
Barone CSG	Terraform Arcadia	Winstead, MN	2 GWh	Sep 2018	Dec 2024	Solar
South Garden	South Garden LLC	Winstead, MN	2 GWh	Jun 2023	Dec 2024	Solar
Nautilus Winsted Solar (CSG)	Nautilus Solar Solutions	Winsted, MN	5 GWh	Mar 2019	Feb 2026	Solar
Montgomery Winsted CSG	Minnesota Solar CSG 4, LLC	Winsted, MN	5 GWh	Oct 2017	Dec 2024	Solar
LAC Courte Oreilles Hydroelect	Renewable World Energies LLC	Winter, WI	8 GWh	Nov 1986	Dec 2024	Water
Winterset	City of Winterset - (IA)	Winterset, IA	35 MWh	Jun 1956	Dec 2024	Natural Gas : 55.9% Distillate Fuel Oil : 44.1%
Winton	ALLETE, Inc.	Winton, MN	10 GWh	Jul 1923	Dec 2024	Water
Wiota	Wiota Wind Energy, LLC #1	Wiota, IA	4 GWh	Apr 2012	Dec 2024	Wind
Kilbourn	Wisconsin Power & Light Co	Wisconsin Dells, WI	58 GWh	Jun 1926	Dec 2024	Water
Biron Mill	ND Paper, Inc.	Wisconsin Rapids, WI	96 GWh	Aug 1947	Dec 2024	Natural Gas : 79.6% Subbituminous Coal : 20.4%

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#60	Alcoa Power Generating, Inc. - Yadkin Division	582.3 GWh	4
#27	Associated Electric Cooperative, Inc.	23.9 TWh	47
#13	Duke Energy Carolinas	112.5 TWh	565
#52	Duke Energy Progress West	4.4 TWh	10
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.0 TWh	25
#1	PJM Interconnection, LLC	881.5 TWh	2,465
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#5	Southwest Power Pool	302.9 TWh	835
#51	Southwestern Power Administration	4.6 TWh	34
#9	Tennessee Valley Authority	163.1 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	881.5 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	664.4 TWh	2,831
#3	Electric Reliability Council of Texas, Inc.	488.2 TWh	1,313
#5	Southwest Power Pool	302.9 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	176.8 TWh	2,075
#9	Tennessee Valley Authority	163.1 TWh	204
#10	Florida Power & Light Co.	150.9 TWh	187
#12	New York Independent System Operator	134.4 TWh	1,211
#13	Duke Energy Carolinas	112.5 TWh	565