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	May 2025
Annual Generation	643.3 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 \| 36.6% Coal \| 28.1% Wind \| 15.6% Nuclear \| 14.4% Solar \| 3.2% 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
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
Zeeland Farm Services	Zeeland Farm Services	Zeeland, MI	13 GWh	Feb 2006	Dec 2023	Other Biomass Gas
Wyandotte	Wyandotte Municipal Serv Comm	Wyandotte, MI	75 MWh	Dec 1947	Mar 2025	Distillate Fuel Oil
Island Street Peaking Plant	WPPI Energy	Kaukauna, WI	8 GWh	May 2004	Dec 2023	Natural Gas : 99.9%
Workman Road Solar Farm, LLC	Workman Road Solar Farm, LLC	Lake City, MI	4 GWh	Nov 2020	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
Alpine Power Plant	Wolverine Power Supply Coop	Elmira, MI	816 GWh	May 2016	Dec 2023	Natural Gas
George Johnson	Wolverine Power Supply Coop	Hersey, MI	19 GWh	Aug 1993	Dec 2023	Natural Gas
Sumpter	Wolverine Power Supply Coop	Belleville, MI	120 GWh	Jun 2002	Nov 2023	Natural Gas
Vestaburg	Wolverine Power Supply Coop	Vestaburg, MI	1 GWh	Dec 1958	Dec 2023	Natural Gas : 99.6%
Claude Vandyke	Wolverine Power Supply Coop	Dorr, MI	4 GWh	Dec 1966	Dec 2023	Natural Gas
Tower	Wolverine Power Supply Coop	Tower, MI	195 MWh	Feb 1971	Dec 2023	Distillate Fuel Oil
Gaylord - Wolverine	Wolverine Power Supply Coop	Gaylord, MI	10 GWh	May 2001	Dec 2023	Natural Gas
Wollan Garden Solar	Wollan Garden LLC	Starbuck, MN	2 GWh	Jun 2019	Dec 2023	Solar
Two Pine Landfill Gas Recovery	WM Renewable Energy LLC	North Little Rock, AR	27 GWh	Sep 2006	Dec 2023	Landfill Gas
Waste Management Eco Vista LFGTE	WM Renewable Energy LLC	Springdale, AR	7 GWh	Oct 2010	Dec 2023	Natural Gas
Metro Gas Recovery	WM Renewable Energy LLC	Franklin, WI	44 GWh	Nov 1985	Dec 2023	Landfill Gas
Omega Hills Gas Recovery	WM Renewable Energy LLC	Germantown, WI	82 GWh	Nov 1985	Mar 2025	Landfill Gas
Five Oaks Gas Recovery	WM Renewable Energy LLC	Taylorville, IL	22 GWh	Jan 2008	Dec 2023	Landfill Gas
Spruce Ridge Gas Recovery	WM Renewable Energy LLC	Glencoe, MN	20 GWh	Mar 2008	Dec 2023	Landfill Gas
Eagle Valley (MI)	WM Renewable Energy LLC	Orion, MI	22 GWh	Jun 2011	Dec 2023	Landfill Gas
Pine Tree Acres WM LFGTE	WM Renewable Energy LLC	Lenox, MI	83 GWh	Feb 2012	Mar 2025	Landfill Gas
Timberline Trail Gas Recovery	WM Renewable Energy LLC	Weyerhaeser, WI	17 GWh	Jan 2006	Dec 2023	Landfill Gas
Metro Methane Recovery Facility	WM Renewable Energy LLC	Mitchellville, IA	78 GWh	Dec 1997	Mar 2025	Landfill Gas
Waste Management Northern Oaks LFGTE	WM Renewable Energy LLC	Harrison, MI	8 GWh	Oct 2010	Dec 2023	Landfill Gas
Berlin Landfill Gas	WM Renewable Energy LLC	Berlin, WI	11 GWh	Jul 2001	Dec 2023	Landfill Gas
Venice Resources Gas Recovery	WM Renewable Energy LLC	Lennon, MI	11 GWh	Feb 1992	Dec 2023	Landfill Gas
Deertrack Park Gas Recovery	WM Renewable Energy LLC	Watertown, WI	35 GWh	Jan 2006	Dec 2023	Landfill Gas
Ridgeview	WM Renewable Energy LLC	Whitelaw, WI	37 GWh	Aug 2002	Dec 2023	Landfill Gas
Pheasant Run Landfill Gas Recovery	WM Renewable Energy LLC	Bristol, WI	41 GWh	Jan 1992	Dec 2023	Landfill Gas
Lake Mills Gas Recovery	WM Renewable Energy LLC	Lake Mills, IA	19 GWh	Feb 2006	Dec 2023	Landfill Gas
Milam Gas Recovery	WM Illinois Renewable Energy LLC	East St. Lois, IL	19 GWh	Mar 1991	Dec 2023	Natural Gas
Tazewell Gas Recovery	WM Illinois Renewable Energy LLC	East Peoria, IL	14 GWh	Jun 1989	Dec 2023	Landfill Gas
Castle Rock	Wisconsin River Power Company	Adams, WI	76 GWh	Jul 1950	Dec 2023	Water
Petenwell	Wisconsin River Power Company	Necedah, WI	96 GWh	Jul 1949	Dec 2023	Water
Hat Rapids	Wisconsin Public Service Corp	Rhinelander, WI	6 GWh	May 1923	Dec 2023	Water
Weston RICE	Wisconsin Public Service Corp	Kronenwetter, WI	49 GWh	Jun 2023	Dec 2023	Natural Gas
Grandfather Falls	Wisconsin Public Service Corp	Irma, WI	76 GWh	Nov 1938	Dec 2023	Water
High Falls (WI)	Wisconsin Public Service Corp	Town of Stephenson, WI	16 GWh	Jul 1910	Dec 2023	Water
Badger Hollow I	Wisconsin Public Service Corp	Montfort, WI	201 GWh	Oct 2021	Mar 2025	Solar
Merrill	Wisconsin Public Service Corp	Merrill, WI	8 GWh	Feb 1917	Dec 2023	Water
Tomahawk	Wisconsin Public Service Corp	Tomahawk, WI	7 GWh	Dec 1937	Dec 2023	Water
Crane Creek Wind Energy Center	Wisconsin Public Service Corp	Riceville, IA	282 GWh	Nov 2009	Dec 2023	Wind
Grand Rapids	Wisconsin Public Service Corp	Ingalls, MI	33 GWh	May 1918	Dec 2023	Water
West Marinette	Wisconsin Public Service Corp	Peshtigo, WI	94 GWh	May 1971	Dec 2023	Natural Gas
Red Barn Energy	Wisconsin Public Service Corp	Montfort, WI	272 GWh	Mar 2023	Mar 2025	Wind
Potato Rapids	Wisconsin Public Service Corp	Town of Porterfield, WI	4 GWh	Apr 1921	Dec 2023	Water
Pulliam	Wisconsin Public Service Corp	Green Bay, WI	67 GWh	Aug 1949	Mar 2025	Natural Gas
Sandstone Rapids	Wisconsin Public Service Corp	Town of Stephenson, WI	8 GWh	Dec 1924	Dec 2023	Water
Hodag Solar	Wisconsin Public Service Corp	Rhinelander, WI	13 GWh	Dec 2021	Dec 2023	Solar
De Pere Energy Center	Wisconsin Public Service Corp	De Pere, WI	144 GWh	May 1999	Dec 2023	Natural Gas : 91.4% Distillate Fuel Oil : 8.6%
Fox Energy Center	Wisconsin Public Service Corp	Wrightstown, WI	4 TWh	May 2005	Mar 2025	Natural Gas
Wausau	Wisconsin Public Service Corp	Wausau, WI	23 GWh	Feb 1921	Dec 2023	Water
Two Creeks Solar	Wisconsin Public Service Corp	Two Rivers, WI	202 GWh	Oct 2020	Mar 2025	Solar
Weston	Wisconsin Public Service Corp	Rothschild, WI	4 TWh	Nov 1954	Mar 2025	Subbituminous Coal : 99.6%
Johnson Falls	Wisconsin Public Service Corp	Town of Stephenson, WI	10 GWh	Jun 1923	Dec 2023	Water
Alexander	Wisconsin Public Service Corp	Merrill, WI	19 GWh	Dec 1924	Dec 2023	Water
Forward Wind Energy Center	Wisconsin Public Service Corp	Brownsville, WI	152 GWh	Jun 2008	Mar 2025	Wind
Caldron Falls	Wisconsin Public Service Corp	Town of Stephenson, WI	12 GWh	Oct 1924	Dec 2023	Water
Edgewater	Wisconsin Power & Light Co	Sheboygan, WI	2 TWh	Jun 1951	Mar 2025	Subbituminous Coal : 99.9%
Kohler Solar	Wisconsin Power & Light Co	Kohler, WI	3 GWh	May 2022	Dec 2023	Solar
Onion River	Wisconsin Power & Light Co	Sheboygan Cedar Grove, WI	213 GWh	Nov 2023	Mar 2025	Solar
Cedar Ridge	Wisconsin Power & Light Co	Eden, WI	161 GWh	Nov 2008	Dec 2023	Wind
Columbia (WI)	Wisconsin Power & Light Co	Pardeville, WI	5 TWh	Apr 1975	Mar 2025	Subbituminous Coal : 99.9%
Riverside Energy Center	Wisconsin Power & Light Co	Beloit, WI	3 TWh	May 2004	Mar 2025	Natural Gas
Kossuth	Wisconsin Power & Light Co	Lu Verne, IA	557 GWh	Sep 2020	Mar 2025	Wind
North Rock	Wisconsin Power & Light Co	Edgerton, WI	99 GWh	Sep 2022	Mar 2025	Solar
Beaver Dam Solar	Wisconsin Power & Light Co	Dodge, WI	98 GWh	Nov 2023	Mar 2025	Solar
Wautoma Solar	Wisconsin Power & Light Co	Wautoma, WI	188 GWh	Nov 2023	Mar 2025	Solar
South Fond Du Lac	Wisconsin Power & Light Co	Fond du Lac, WI	14 GWh	Apr 1993	Dec 2023	Natural Gas : 99.8%
Kilbourn	Wisconsin Power & Light Co	Wisconsin Dells, WI	54 GWh	Jun 1926	Dec 2023	Water
Bent Tree Wind Farm Phase 1	Wisconsin Power & Light Co	Hartland, MN	342 GWh	Jan 2011	Dec 2023	Wind
Alliant Energy Neenah	Wisconsin Power & Light Co	Neenah, WI	610 GWh	Apr 2000	Dec 2023	Natural Gas
Paddock Solar	Wisconsin Power & Light Co	Beloit, WI	129 GWh	Oct 2023	Mar 2025	Solar
Cassville Solar	Wisconsin Power & Light Co	Cassville, WI	98 GWh	Nov 2023	Mar 2025	Solar
Sheboygan Falls	Wisconsin Power & Light Co	Sheboygan, WI	547 GWh	May 2005	Dec 2023	Natural Gas
Bear Creek	Wisconsin Power & Light Co	Lone Rock, WI	98 GWh	Aug 2022	Mar 2025	Solar
Grant County	Wisconsin Power & Light Co	Town of Potosi, WI	271 GWh	-	Mar 2025	Solar
Prairie Du Sac	Wisconsin Power & Light Co	Prairie du Sac, WI	131 GWh	Sep 1915	Dec 2023	Water
Albany Solar (WI)	Wisconsin Power & Light Co	Broadhead, WI	90 GWh	Nov 2023	Mar 2025	Solar
Springfield Solar (WI)	Wisconsin Power & Light Co	Lomira, WI	193 GWh	Nov 2023	Mar 2025	Solar
West Riverside Energy Center	Wisconsin Power & Light Co	Beloit, WI	5 TWh	Apr 2020	Mar 2025	Natural Gas : 99.9%
Wood County	Wisconsin Power & Light Co	Nekoosa, WI	277 GWh	Nov 2022	Mar 2025	Solar
Crawfish River	Wisconsin Power & Light Co	Jefferson, WI	105 GWh	Nov 2023	Mar 2025	Solar
Germantown	Wisconsin Electric Power Co	Germantown, WI	13 GWh	Jun 1978	Dec 2023	Natural Gas : 85.3% Distillate Fuel Oil : 14.7%
Montfort Wind Energy Center	Wisconsin Electric Power Co	Montfort, WI	60 GWh	May 2002	Mar 2025	Wind
Rothschild Biomass Cogen Facility	Wisconsin Electric Power Co	Rothschild, WI	143 GWh	Oct 2013	Dec 2023	Wood/Wood Waste Solids : 96.1% Natural Gas : 3.9%
Glacier Hills	Wisconsin Electric Power Co	Cambria, WI	390 GWh	Nov 2011	Mar 2025	Wind
Twin Falls (WI)	Wisconsin Electric Power Co	Florence, WI	38 GWh	Jun 2016	Dec 2023	Water
LSP-Whitewater LP	Wisconsin Electric Power Co	Whitewater, WI	903 GWh	Aug 1997	Mar 2025	Natural Gas
Blue Sky Green Field Wind Project	Wisconsin Electric Power Co	Fond du Lac, WI	352 GWh	Apr 2008	Mar 2025	Wind
Appleton	Wisconsin Electric Power Co	Appleton, WI	6 GWh	Jul 1916	Dec 2023	Water
Kingsford	Wisconsin Electric Power Co	Kingsford, MI	25 GWh	Apr 1924	Dec 2023	Water
Concord	Wisconsin Electric Power Co	Watertown, WI	120 GWh	Jun 1993	Dec 2023	Natural Gas : 99.9%
Elm Road Generating Station	Wisconsin Electric Power Co	Oak Creek, WI	8 TWh	Jan 2010	Mar 2025	Subbituminous Coal : 72.3% Bituminous Coal : 17.5% Natural Gas : 10.2%
Badger Hollow II	Wisconsin Electric Power Co	Cobb, WI	200 GWh	Nov 2023	Mar 2025	Solar
Paris (WI)	Wisconsin Electric Power Co	Union Grove, WI	160 GWh	Feb 1995	Dec 2023	Natural Gas
Port Washington Generating Station	Wisconsin Electric Power Co	Port Washington, WI	7 TWh	Jun 2005	Mar 2025	Natural Gas

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	727.7 GWh	4
#27	Associated Electric Cooperative, Inc.	22.8 TWh	47
#13	Duke Energy Carolinas	111.4 TWh	556
#52	Duke Energy Progress West	4.1 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	33.8 TWh	20
#1	PJM Interconnection, LLC	858.5 TWh	2,305
#20	Public Service Company of Colorado	48.7 TWh	201
#5	Southwest Power Pool	297.0 TWh	762
#51	Southwestern Power Administration	4.2 TWh	31
#8	Tennessee Valley Authority	158.8 TWh	170

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	858.5 TWh	2,305
#2	Midcontinent Independent System Operator, Inc.	643.3 TWh	2,653
#3	Electric Reliability Council of Texas, Inc.	476.0 TWh	1,139
#5	Southwest Power Pool	297.0 TWh	762
#6	Southern Company Services, Inc. - Trans	251.8 TWh	393
#7	California Independent System Operator	190.1 TWh	1,943
#8	Tennessee Valley Authority	158.8 TWh	170
#10	Florida Power & Light Co.	148.3 TWh	159
#12	New York Independent System Operator	130.6 TWh	1,100
#13	Duke Energy Carolinas	111.4 TWh	556