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	Jul 2026
Annual Generation	669.4 TWh
Power Plants	3,038
Utilities	1,345
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% Coal \| 26.5% Wind \| 14.9% Nuclear \| 13.9% Solar \| 5.7% Water \| 1.4% Other Fuel \| 0.6%

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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
Danielson Wind Farms LLC	BEAM US, LLC	Cosmos, MN	56 GWh	Feb 2011	Dec 2025	Wind
C W Tippy	Consumers Energy Co - (MI)	Wellston, MI	56 GWh	Dec 1917	Dec 2025	Water
Saint Marys Hospital Power Plant	St Mary's Hospital	Rochester, MN	55 GWh	Dec 1970	May 2026	Natural Gas : 99.0% Distillate Fuel Oil : 1.0%
South Fork Wind Farm	South Fork Wind, LLC	Round Lake, MN	54 GWh	Nov 2016	Dec 2025	Wind
Hennepin Island	Northern States Power Co - Minnesota	Minneapolis, MN	54 GWh	Sep 1954	Dec 2025	Water
Carroll Area Wind Farm	SRIV Partnership LLC	Templeton, IA	54 GWh	Dec 2014	Dec 2025	Wind
Tilton	Tilton Energy LLC	Tilton, IL	54 GWh	May 1999	Dec 2025	Natural Gas
Victoria Dam	Upper Peninsula Power Company	Rockland, MI	54 GWh	Dec 1930	Dec 2025	Water
Taconite Ridge 1 Wind Energy Center	ALLETE, Inc.	Mountain Iron, MN	53 GWh	Apr 2008	Dec 2025	Wind
Grant County Wind LLC	Grant County Wind, LLC	Woodstock, MN	53 GWh	Jul 2010	Dec 2025	Wind
Koda Biomass Plant	Koda Energy LLC	Shakopee, MN	53 GWh	Apr 2009	Dec 2025	Agricultural By-Products : 75.1% Wood/Wood Waste Solids : 16.1% Natural Gas : 8.9%
Sumpter Energy Associates	NextEra Renewable Fuels, LLC	Belleville, MI	52 GWh	Jun 1992	Dec 2025	Landfill Gas
McKinley Wind Park	DTE Electric Company	Pigeon, MI	51 GWh	Nov 2012	May 2026	Wind
Montfort Wind Energy Center	Wisconsin Electric Power Co	Montfort, WI	51 GWh	May 2002	May 2026	Wind
Columbia Energy Center	City of Columbia - (MO)	Columbia, MO	51 GWh	May 2001	Dec 2025	Natural Gas
Grand Blanc Generating Station	Energy Developments, Inc d/b/a EDL	Grand Blanc, MI	50 GWh	Jun 1994	Dec 2025	Landfill Gas
Port Allen (LA)	Placid Refining Co LLC	Port Allen, LA	50 GWh	Apr 1990	Dec 2025	Natural Gas
Brent Run Generating Station	Energy Developments, Inc d/b/a EDL	Montrose, MI	50 GWh	Dec 1997	Dec 2025	Landfill Gas
St. James Solar (LA)	St. James Solar, LLC	Vacherie, LA	50 GWh	Jan 2023	Dec 2025	Solar
Kilbourn	Wisconsin Power & Light Co	Wisconsin Dells, WI	49 GWh	Jun 1926	Dec 2025	Water
Benndale	Cooperative Energy	Benndale, MS	49 GWh	Sep 1969	Dec 2025	Natural Gas
Louisiana Tech University Power Plant	Louisiana Tech University	Ruston, LA	49 GWh	Jun 2004	Dec 2025	Natural Gas
Fish Creek Solar Park	DTE Electric Company	Greenville, MI	49 GWh	-	May 2026	Solar
Pleasant Hill	MidAmerican Energy Co	Pleasant Hill, IA	49 GWh	May 1990	Dec 2025	Natural Gas
Peavy Falls	Wisconsin Electric Power Co	Crystal Falls, MI	48 GWh	Dec 1942	Dec 2025	Water
Cedar Hills Wind Farm	Montana-Dakota Utilities Co	Rhame, ND	48 GWh	May 2010	Dec 2025	Wind
Olmsted Waste Energy	Olmsted County Public Works - (MN)	Rochester, MN	47 GWh	Mar 1987	Dec 2025	Non-biogenic Municipal Solid Waste : 54.7% Biogenic Municipal Solid Waste : 44.8% Natural Gas : 0.5%
Pheasant Run Landfill Gas Recovery	WM Renewable Energy LLC	Bristol, WI	47 GWh	Jan 1992	Dec 2025	Landfill Gas
T J Labbe Electric Generating	Lafayette Utilities System	Lafayette, LA	47 GWh	Jul 2005	Dec 2025	Natural Gas
Vandalia Renewable Energy Center	Union Electric Co - (MO)	Vandalia, MO	46 GWh	Oct 2025	May 2026	Solar
Wisconsin Rapids	Consolidated Water Power Co	Wisconsin Rapids, WI	46 GWh	Dec 1902	Dec 2025	Water
Remmel	Entergy Arkansas LLC	Malvern, AR	46 GWh	Dec 1924	Dec 2025	Water
St. Cloud Hydro	St. Cloud Hydroelectric Generation Facility	St Cloud, MN	46 GWh	May 1988	Dec 2025	Water
Arbor Hill Solar	MidAmerican Energy Co	Greenfield, IA	45 GWh	Dec 2021	May 2026	Solar
Cooks Mill PV I	Cooks Mill PV I, LLC	Matoon, IL	45 GWh	-	May 2026	Solar
Otter Creek Ethanol Poet - Ashton	Otter Creek Ethanol LLC - Poet Ashton	Ashton, IA	45 GWh	Feb 2004	May 2026	Natural Gas
New Badger	City of Kaukauna (WI)	Kaukauna, WI	44 GWh	Dec 2013	May 2026	Water
OREG 3 Inc	Ormat Nevada Inc	Trimont, MN	43 GWh	Jul 2010	May 2026	Waste Heat
American Crystal Sugar Drayton	American Crystal Sugar Co	Drayton, ND	43 GWh	Aug 1965	Dec 2025	Subbituminous Coal
George Johnson	Wolverine Power Supply Coop	Hersey, MI	43 GWh	Aug 1993	Dec 2025	Natural Gas
American Crystal Sugar East Grand Forks	American Crystal Sugar Co	East Grand Forks, MN	43 GWh	Aug 1990	Dec 2025	Subbituminous Coal
Combined Locks	City of Kaukauna (WI)	Combined Locks, WI	43 GWh	Jan 1988	Dec 2025	Water
Temperance Solar, LLC	Geronimo Power	Erie, MI	42 GWh	Nov 2020	Dec 2025	Solar
Hutchinson Plant #1	Hutchinson Utilities Comm	Hutchinson, MN	42 GWh	Dec 1957	Dec 2025	Natural Gas
Crooked Creek PV I	Crooked Creek PV I, LLC	Salem, IL	42 GWh	-	May 2026	Solar
Bingham Solar, LLC	Geronimo Power	St. Johns, MI	42 GWh	Nov 2020	Dec 2025	Solar
Lyons Road	Lyons Road Solar, LLC	Owosso, MI	41 GWh	Dec 2021	Dec 2025	Solar
Metro Gas Recovery	WM Renewable Energy LLC	Franklin, WI	41 GWh	Nov 1985	Dec 2025	Landfill Gas
Willford Solar, LLC	Willford Solar, LLC	Gladwin, MI	41 GWh	Sep 2023	Dec 2025	Solar
American Crystal Sugar Crookston	American Crystal Sugar Co	Crookston, MN	41 GWh	Aug 1954	Dec 2025	Subbituminous Coal
Shipsterns Solar, LLC	Shipsterns Solar, LLC	Albion, MI	41 GWh	Sep 2023	Dec 2025	Solar
Zimmerman Energy	Landfill Energy Systems	Argos, IN	41 GWh	Oct 2014	May 2026	Landfill Gas
Rapids Energy Center	ALLETE, Inc.	Grand Rapids, MN	40 GWh	Dec 1942	Dec 2025	Natural Gas : 81.7% Water : 18.3%
Top of Iowa Windfarm III	Madison Gas & Electric Co	Kensett, IA	40 GWh	Jan 2008	Dec 2025	Wind
Hibbing	Hibbing Public Utilities Comm	Hibbing, MN	40 GWh	Mar 1965	Dec 2025	Natural Gas : 52.2% Wood/Wood Waste Solids : 46.4% Bituminous Coal : 1.4%
Renegade Solar Energy LLC	Upper Michigan Energy Resources Company	Rock, MI	40 GWh	-	May 2026	Solar
Anheuser-Busch St Louis	Anheuser-Busch Inc	St. Louis, MO	38 GWh	Dec 1938	May 2026	Natural Gas : 93.0% Other Biomass Gas : 7.0%
Coopersville	Energy Developments, Inc d/b/a EDL	Coopersville, MI	38 GWh	May 1994	Dec 2025	Landfill Gas
Macbeth Solar	Macbeth Solar, LLC	Montague, MI	38 GWh	Apr 2022	Dec 2025	Solar
Fond Du Lac	ALLETE, Inc.	Duluth, MN	38 GWh	Dec 1923	Dec 2025	Water
Midcontinent Solar, LLC	Midcontinent Solar, LLC	Owosso, MI	38 GWh	Sep 2023	Dec 2025	Solar
Demille Solar Farm	DTE Electric Company	Lapeer, MI	37 GWh	Apr 2017	May 2026	Solar
O'Brien Solar Fields	Madison Gas & Electric Co	Fitchburg, WI	37 GWh	Apr 2021	Dec 2025	Solar
Blue Elk IV Solar, LLC	Blue Elk IV Solar, LLC	Adrian, MI	37 GWh	Nov 2023	Dec 2025	Solar
Ridgeview	WM Renewable Energy LLC	Whitelaw, WI	37 GWh	Aug 2002	Dec 2025	Landfill Gas
Waxdale	S.C. Johnson & Son, Inc.	Sturtevant, WI	37 GWh	Nov 2003	May 2026	Natural Gas : 43.5% Landfill Gas : 30.9% Wind : 17.2% Solar : 8.4%
Woodstock Windfarm	RWE Clean Energy	Woodstock, MN	37 GWh	Apr 1999	Dec 2025	Wind
Gaylord - Wolverine	Wolverine Power Supply Coop	Gaylord, MI	37 GWh	May 2001	Dec 2025	Natural Gas
Twin Falls (WI)	Wisconsin Electric Power Co	Florence, WI	37 GWh	Jun 2016	Dec 2025	Water
Sterlington Solar	Entergy Louisiana LLC	Sterlington, LA	37 GWh	-	May 2026	Solar
Blue Elk III Solar, LLC	Blue Elk III Solar, LLC	Eaton Rapids, MI	37 GWh	Nov 2023	Dec 2025	Solar
Dells	Northern States Power Co - Minnesota	Eau Claire, WI	37 GWh	Dec 1922	Dec 2025	Water
Port Edwards Mill	Domtar Industries Inc	Port Edwards, WI	37 GWh	Dec 1912	May 2026	Water
Du Bay	Consolidated Water Power Co	Eau Pleine, WI	36 GWh	Dec 1941	Dec 2025	Water
Redfield Solar	Redfield PV I, LLC	Sheridan, AR	36 GWh	-	May 2026	Solar
Greenstone Solar, LLC	Greenstone Solar, LLC	Coldwater, MI	35 GWh	Sep 2023	Dec 2025	Solar
Blue Elk II Solar, LLC	Blue Elk II Solar, LLC	Mason, MI	35 GWh	Apr 2024	Dec 2025	Solar
Grand Rapids	Wisconsin Public Service Corp	Ingalls, MI	35 GWh	May 1918	Dec 2025	Water
Ergon Refining Vicksburg	Ergon Refining Inc	Vicksburg, MS	35 GWh	Feb 1995	Dec 2025	Natural Gas
DePue Holdings, LLC	DePue Holdings, LLC	DePue, IL	35 GWh	Jan 2023	Dec 2025	Solar
Alsey	Prairie Power, Inc	Alsey, IL	35 GWh	May 1999	Dec 2025	Natural Gas : 99.8%
POET Biorefining - Shelbyville	POET Biorefining- Shelbyville	Shelbyville, IN	34 GWh	May 2020	Dec 2025	Natural Gas
Chalk Hill	Wisconsin Electric Power Co	Stephenson, MI	34 GWh	Apr 1927	Dec 2025	Water
Dane County Solar LLC	Dane County Solar LLC	Cottage Grove, WI	34 GWh	May 2023	Dec 2025	Solar
BioTown Ag	Bio Town Biogas, LLC	Reynolds, IN	33 GWh	May 2011	Dec 2024	Other Biomass Gas
Germantown	Wisconsin Electric Power Co	Germantown, WI	33 GWh	Jun 1978	Dec 2025	Natural Gas : 83.1% Distillate Fuel Oil : 16.9%
East. Michigan Univ. Heating Plant	East. Michigan Univ. Heating Plant	Ypsilanti, MI	33 GWh	Sep 1987	Dec 2025	Natural Gas
Pullman Solar, LLC	AES Distributed Energy	Lee Township, MI	33 GWh	Nov 2022	Dec 2025	Solar
Cascade Creek	Rochester Public Utilities	Rochester, MN	33 GWh	May 1975	Dec 2025	Natural Gas : 98.4% Distillate Fuel Oil : 1.6%
White Rapids	Wisconsin Electric Power Co	Stephenson, MI	33 GWh	Sep 1927	Dec 2025	Water
Deertrack Park Gas Recovery	WM Renewable Energy LLC	Watertown, WI	33 GWh	Jan 2006	Dec 2025	Landfill Gas
Odin Wind Farm LLC	Aspenall Energies (Delaware), LLC	Mountainlake, MN	32 GWh	Apr 2008	Dec 2025	Wind
Hardin Hilltop Wind LLC	Junction Hilltop Management LLC	Jefferson, IA	32 GWh	Apr 2007	Dec 2024	Wind
Glen Ullin Station 6	Montana-Dakota Utilities Co	Glen Ullin, ND	32 GWh	Jun 2009	Dec 2025	Waste Heat
Cement City Solar, LLC	AES Distributed Energy	Cement City, MI	32 GWh	Dec 2022	Dec 2025	Solar
Newton Solar BESS LLC	Vistra Corp	Newton, IL	32 GWh	-	May 2026	Solar
Windom Wind Project	Midwest Power Partners LLC	Bingham Lake, MN	32 GWh	Feb 2006	Dec 2025	Wind
Lake Mills Gas Recovery	WM Renewable Energy LLC	Lake Mills, IA	32 GWh	Feb 2006	Dec 2025	Landfill Gas
Kaukauna City Hydro	City of Kaukauna (WI)	Kaukauna, WI	31 GWh	Nov 1940	Dec 2025	Water
Cedar Falls (WI)	Northern States Power Co - Minnesota	Menomonie, WI	31 GWh	Dec 1909	Dec 2025	Water

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	442.5 GWh	4
#26	Associated Electric Cooperative, Inc.	23.4 TWh	47
#13	Duke Energy Carolinas	112.6 TWh	577
#50	Duke Energy Progress West	4.5 TWh	15
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	33.9 TWh	25
#1	PJM Interconnection, LLC	882.8 TWh	2,652
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#5	Southwest Power Pool	306.8 TWh	856
#53	Southwestern Power Administration	4.1 TWh	34
#9	Tennessee Valley Authority	163.4 TWh	207

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	882.8 TWh	2,652
#2	Midcontinent Independent System Operator, Inc.	669.4 TWh	3,038
#3	Electric Reliability Council of Texas, Inc.	494.1 TWh	1,471
#5	Southwest Power Pool	306.8 TWh	856
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#7	California Independent System Operator	169.4 TWh	2,135
#9	Tennessee Valley Authority	163.4 TWh	207
#10	Florida Power & Light Co.	152.2 TWh	187
#12	New York Independent System Operator	134.3 TWh	1,299
#13	Duke Energy Carolinas	112.6 TWh	577