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	645.5 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 \| 36.9% Coal \| 28% Wind \| 15.6% Nuclear \| 14.5% Solar \| 3% 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
Zimmerman Energy	Landfill Energy Systems	Argos, IN	35 GWh	Oct 2014	Feb 2025	Landfill Gas
Sagamore Plant Cogeneration	Tate & Lyle Ingredients Americas Inc	Lafayette, IN	20 GWh	Sep 1984	Feb 2025	Natural Gas
Kent County Waste to Energy Facility	Kent County	Grand Rapids, MI	98 GWh	Sep 1989	Feb 2025	Non-biogenic Municipal Solid Waste : 54.8% Biogenic Municipal Solid Waste : 44.8%
TES Filer City Station	TES Filer City Station LP	Filer City, MI	236 GWh	Apr 1990	Feb 2025	Bituminous Coal : 70.9% Wood/Wood Waste Solids : 14.6% Natural Gas : 14.5%
Gary Works	United States Steel-Gary	Gary, IN	759 GWh	Mar 1997	Feb 2025	Natural Gas : 50.1% Blast Furnace Gas : 49.9%
Sappi Cloquet Mill	Sappi Cloquet LLC	Cloquet, MN	482 GWh	Dec 1928	Feb 2025	Black Liquor : 66.8% Wood/Wood Waste Solids : 16.9% Natural Gas : 11.8% Water : 3.8%
ExxonMobil Beaumont Refinery	ExxonMobil Oil Corp	Beaumont, TX	4 TWh	Dec 1965	Feb 2025	Natural Gas : 96.5% Other Gas : 3.5%
Mosinee Mill	Ahlstrom-Munksjo NA Specialty Solutions, LLC	Mosinee, WI	123 GWh	Jun 1916	Feb 2025	Black Liquor : 40.2% Bituminous Coal : 32.1% Water : 17.0% Wood/Wood Waste Solids : 4.0% Residual Fuel Oil : 3.1% Natural Gas : 2.0% Sludge Waste : 1.6%
Omega Hills Gas Recovery	WM Renewable Energy LLC	Germantown, WI	82 GWh	Nov 1985	Feb 2025	Landfill Gas
Columbia (WI)	Wisconsin Power & Light Co	Pardeville, WI	5 TWh	Apr 1975	Feb 2025	Subbituminous Coal : 99.9%
Emery Station	Interstate Power and Light Co	Clear Lake, IA	2 TWh	Apr 2004	Feb 2025	Natural Gas
Indy Solar I, LLC	Onward Energy	Indianapolis, IN	15 GWh	Nov 2013	Feb 2025	Solar
Arkansas Nuclear One	Entergy Arkansas LLC	Russellville, AR	15 TWh	Nov 1974	Feb 2025	Nuclear
PPG Powerhouse C	Westlake 2 US LLC	Lake Charles, LA	2 TWh	Jul 1977	Feb 2025	Natural Gas : 99.1% Other Gas : 0.9%
Indy Solar III, LLC	Onward Energy	Indianapolis, IN	14 GWh	Nov 2013	Feb 2025	Solar
Indy Solar II, LLC	Onward Energy	Indianapolis, IN	15 GWh	Nov 2013	Feb 2025	Solar
Coyote	Otter Tail Power Co	Beulah, ND	2 TWh	Apr 1981	Feb 2025	Lignite Coal : 99.7%
Covanta Hennepin Energy	Covanta Energy Co	Minneapolis, MN	206 GWh	Sep 1989	Feb 2025	Non-biogenic Municipal Solid Waste : 54.6% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.7%
CF Industries Yazoo City Complex	CF Industries Nitrogen LLC	Yazoo City, MS	143 GWh	Jun 1984	Feb 2025	Natural Gas
Escanaba Mill	Billerud Escanaba LLC	Escanaba, MI	451 GWh	Dec 1968	Feb 2025	Black Liquor : 45.0% Natural Gas : 30.7% Wood/Wood Waste Solids : 23.1% Residual Fuel Oil : 0.6% Bituminous Coal : 0.5%
Pheasant Run Wind LLC	Pheasant Run Wind LLC	Pigeon, MI	259 GWh	Nov 2013	Feb 2025	Wind
Tuscola Wind II LLC	Tuscola Wind II LLC	Reese, MI	304 GWh	Oct 2013	Feb 2025	Wind
T B Simon Power Plant	Michigan State University	East Lansing, MI	245 GWh	Nov 1965	Feb 2025	Natural Gas
Consumer Operations LLC	Georgia-Pacific Consumer Oper. Green Bay LLC	Green Bay, WI	261 GWh	Dec 1953	Feb 2025	Natural Gas
Lincoln Land Wind	Lincoln Land Wind, LLC	TBD, IL	1 TWh	Oct 2021	Feb 2025	Wind
Sugar Creek Wind One LLC	Sugar Creek Wind One LLC	TBD, IL	681 GWh	Oct 2020	Feb 2025	Wind
Anheuser-Busch St Louis	Anheuser-Busch Inc	St. Louis, MO	42 GWh	Dec 1938	Feb 2025	Natural Gas : 92.4% Other Biomass Gas : 7.6%
Menominee Mill Marinette	Eagle Creek Renewable Energy, LLC	Menominee, MI	12 GWh	Dec 1923	Feb 2025	Water
Expander Turbine	Cleveland Cliffs	East Chicago, IN	84 GWh	Apr 1981	Feb 2025	Blast Furnace Gas
Boise Cascade International Falls	Boise White Paper LLC	International Falls, MN	340 GWh	Dec 1926	Feb 2025	Black Liquor : 63.7% Natural Gas : 22.9% Wood/Wood Waste Solids : 12.2% Sludge Waste : 1.3%
International Falls Power	Boise White Paper LLC	International Falls, MN	52 GWh	Dec 1923	Feb 2025	Water
Georgia-Pacific Corp - Nekoosa Mill	Domtar Industries Inc	Nekoosa, WI	195 GWh	Dec 1911	Feb 2025	Black Liquor : 43.7% Natural Gas : 42.6% Water : 13.7%
RC Thomas Hydroelectric Project	East Texas Electric Coop, Inc	Livingston, TX	123 GWh	Jun 2020	Feb 2025	Water
Alpena Cement Plant	Lafarge Corp	Alpena, MI	187 GWh	Dec 1951	Feb 2025	Petroleum Coke : 79.9% Natural Gas : 20.1%
Highland Wind Project (IA)	MidAmerican Energy Co	Primghar, IA	2 TWh	May 2015	Feb 2025	Wind
Courtenay Wind Farm	Northern States Power Co - Minnesota	Courtenay, ND	759 GWh	Nov 2016	Feb 2025	Wind
Purdue University	Purdue University	West Lafayette, IN	130 GWh	Dec 1968	Feb 2025	Natural Gas : 91.4% Bituminous Coal : 8.6%
Apple Blossom Wind Farm	Apple Blossom Wind, LLC	Pigeon, MI	267 GWh	Oct 2017	Feb 2025	Wind
Midland Cogeneration Venture	Midland Cogeneration Venture	Midland, MI	11 TWh	May 1989	Feb 2025	Natural Gas
Sabine River Operations	The Dow Chemical Company	Orange, TX	3 TWh	Dec 1947	Feb 2025	Natural Gas : 99.3% Other Gas : 0.7%
Dow St Charles Operations	Dow Chemical Co - St Charles	Taft, LA	2 TWh	Nov 1996	Feb 2025	Natural Gas : 99.1% Other Gas : 0.9%
University of Northern Iowa	University of Northern Iowa	Cedar Falls, IA	22 GWh	Oct 1982	Feb 2025	Natural Gas : 68.2% Petroleum Coke : 23.1% Bituminous Coal : 8.6%
Archer Daniels Midland Clinton	Archer Daniels Midland Co	Clinton, IA	786 GWh	Jan 2009	Feb 2025	Subbituminous Coal : 89.8% Other Biomass Solids : 9.5% Bituminous Coal : 0.6%
Black Oak Wind Farm	Black Oak Wind, LLC	Sauk Centre, MN	315 GWh	Nov 2016	Feb 2025	Wind
Brookfield	DTE Electric Company	Pigeon, MI	253 GWh	Jan 2014	Feb 2025	Wind
Archer Daniels Midland Cedar Rapids	Archer Daniels Midland Co	Cedar Rapids, IA	1 TWh	Oct 1988	Feb 2025	Subbituminous Coal : 57.9% Natural Gas : 28.3% Bituminous Coal : 13.9%
Archer Daniels Midland Decatur	Archer Daniels Midland Co	Decatur, IL	704 GWh	Mar 1987	Feb 2025	Bituminous Coal : 62.3% Subbituminous Coal : 37.5%
Elk River	Great River Energy	Elk River, MN	46 GWh	Dec 1950	Jan 2025	Natural Gas : 98.5% Distillate Fuel Oil : 1.5%
Sabine	Entergy Texas Inc.	Orange, TX	4 TWh	Dec 1961	Jan 2025	Natural Gas
MSC Croswell	Michigan Sugar Company	Croswell, MI	131 MWh	Sep 1948	Jan 2025	Natural Gas
SABIC Innovative Plastics Mt. Vernon	SABIC IP Mt. Vernon, LLC	Mount Vernon, IN	430 GWh	May 1996	Jan 2025	Natural Gas
John Deere Dubuque Works	John Deere Dubuque Works	Dubuque, IA	92 MWh	May 1994	Jan 2025	Distillate Fuel Oil
University of Michigan	University of Michigan	Ann Arbor, MI	222 GWh	Dec 1974	Jan 2025	Natural Gas
Valley Queen Cheese	Valley Queen Cheese Factory, Inc.	Milbank, SD	31 MWh	Mar 2002	Dec 2024	Distillate Fuel Oil
West Group Data Center F	Thomson Corp	Eagan, MN	50 MWh	May 2004	Nov 2024	Distillate Fuel Oil
Thomson Reuters Data Center Bldg H	Thomson Corp	Eagan, MN	41 MWh	Dec 2006	Nov 2024	Distillate Fuel Oil
Alliant SBD 9203 Profol	American Profol Incorporated	Cedar Rapids, IA	133 MWh	Aug 1996	Nov 2024	Distillate Fuel Oil
PPG Riverside	Westlake 2 US LLC	Lake Charles, LA	111 GWh	Aug 1947	Nov 2024	Purchased Steam
FECC Solar Benton	Today's Power, Inc.	Benton, AR	967 MWh	Feb 2017	Oct 2024	Solar
University of Iowa Main Power Plant	University of Iowa	Iowa City, IA	4 GWh	Dec 1946	Sep 2024	Natural Gas : 51.7% Other Biomass Solids : 19.1% Wood/Wood Waste Solids : 18.4% Bituminous Coal : 10.8%
Rush Island	Union Electric Co - (MO)	Festus, MO	603 GWh	Feb 1976	Sep 2024	Subbituminous Coal : 98.2% Distillate Fuel Oil : 1.8%
Thomson Reuters Data Center Bldg ES101	Thomson Corp	Eagan, MN	9 MWh	Apr 2009	Aug 2024	Distillate Fuel Oil
CC Perry K	Citizens Thermal Energy	Indianapolis, IN	12 GWh	Dec 1924	Jun 2024	Natural Gas
CII Carbon LLC	CII Carbon LLC	Chalmette, LA	8 GWh	Dec 1950	Jun 2024	Waste Heat
Georgia-Pacific Crossett LLC	Georgia-Pacific Crossett LLC	Crossett, AR	4 GWh	Apr 1962	Jun 2024	Natural Gas
LSU Cogen	LSU and A&M College	Baton Rouge, LA	56 GWh	Nov 2004	Feb 2024	Natural Gas
Indy Grocers	Terraform Arcadia	Indianapolis, IN	2 GWh	May 2015	Dec 2023	Solar
Blue Breezes LLC	Midwest Power Partners LLC	Blue Earth, MN	418 MWh	Apr 2006	Dec 2023	Wind
Blue Breezes II LLC	Midwest Power Partners LLC	Blue Earth, MN	418 MWh	Apr 2006	Dec 2023	Wind
Sunset Breeze LLC	Midwest Power Partners LLC	Rushmore, MN	3 GWh	Apr 2006	Dec 2023	Wind
Minnesota Breeze LLC	Midwest Power Partners LLC	Rushmore, MN	3 GWh	Apr 2006	Dec 2023	Wind
G Flow Wind LLC	Midwest Power Partners LLC	Rushmore, MN	3 GWh	Apr 2006	Dec 2023	Wind
Wolf Wind Enterprises LLC	Midwest Power Partners LLC	Rushmore, MN	3 GWh	Apr 2006	Dec 2023	Wind
Green Acres Breeze LLC	Midwest Power Partners LLC	Rushmore, MN	3 GWh	Apr 2006	Dec 2023	Wind
Elm Street Substation Generators	City of Farmington - (MO)	Farmington, MO	32 MWh	Sep 2002	Dec 2023	Distillate Fuel Oil
Walton Street Substation	City of Farmington - (MO)	Farmington, MO	12 MWh	Dec 2002	Dec 2023	Distillate Fuel Oil
Overall Road Station	City of Farmington - (MO)	Farmington, MO	32 MWh	Feb 2003	Dec 2023	Distillate Fuel Oil
San Jacinto County Peaking Facility	East Texas Electric Coop, Inc	Shepherd, TX	115 GWh	Jun 2001	Dec 2023	Natural Gas
Hardin County Peaking Facility	Entergy Texas Inc.	Kountze, TX	128 GWh	Jun 2001	Dec 2023	Natural Gas
Langdon Renewables, LLC	FPL Energy Langdon Wind LLC	Langdon, ND	456 GWh	Nov 2007	Dec 2023	Wind
Ewington Energy Systems, LLC	Ewington Energy Systems, LLC	Worthington, MN	88 GWh	Dec 2007	Dec 2023	Wind
Taconite Ridge 1 Wind Energy Center	ALLETE, Inc.	Mountain Iron, MN	47 GWh	Apr 2008	Dec 2023	Wind
Harvest	Harvest Windfarm, LLC	Elkton, MI	102 GWh	Dec 2007	Dec 2023	Wind
St Paul Cogeneration	St Paul Cogeneration LLC	St. Paul, MN	153 GWh	Mar 2003	Dec 2023	Wood/Wood Waste Solids : 76.5% Natural Gas : 23.5%
Michigan Wind 2	Michigan Wind 2, LLC	Minden City, MI	304 GWh	Nov 2011	Dec 2023	Wind
Velva Windfarm LLC	Acciona Wind Energy USA LLC	Velva, ND	24 GWh	Nov 2005	Dec 2023	Wind
Charles City Wind Farm	MidAmerican Energy Co	Charles City, IA	258 GWh	Mar 2008	Dec 2023	Wind
Benton County Wind Farm	Orion Energy Group LLC	Earl Park, IN	328 GWh	Apr 2008	Dec 2023	Wind
Jeffers Wind 20 LLC	Northern States Power Co - Minnesota	Jeffers, MN	192 GWh	Sep 2008	Dec 2023	Wind
Odin Wind Farm LLC	NRG Energy Gas & Wind Holdings Inc	Mountainlake, MN	34 GWh	Apr 2008	Dec 2023	Wind
Winnebago Wind Power Project	Avangrid Renewables LLC	Forest City, IA	52 GWh	Aug 2008	Dec 2023	Wind
Barton Windpower LLC	Avangrid Renewables LLC	Kensett, IA	350 GWh	May 2009	Dec 2023	Wind
Farmers City Wind LLC	Avangrid Renewables LLC	Tarkio, MO	240 GWh	Mar 2009	Dec 2023	Wind
Diamond Willow Wind Facility	Montana-Dakota Utilities Co	Baker, MT	82 GWh	Nov 2007	Dec 2023	Wind
Geismar Cogen	Air Liquide Large Industries U S LP	Geismar, LA	504 GWh	Dec 1999	Dec 2023	Natural Gas
Elm Creek Wind LLC	Avangrid Renewables LLC	Trimont, MN	209 GWh	Nov 2008	Dec 2023	Wind
Moraine II Wind LLC	Avangrid Renewables LLC	Woodstock, MN	78 GWh	Jan 2009	Dec 2023	Wind
Carroll Wind Farm	MidAmerican Energy Co	Carroll, IA	549 GWh	Nov 2008	Dec 2023	Wind
Adair Wind Farm	MidAmerican Energy Co	Adair, IA	518 GWh	Nov 2008	Dec 2023	Wind
Walnut Wind Farm	MidAmerican Energy Co	Walnut, IA	538 GWh	Nov 2008	Dec 2023	Wind

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	742.1 GWh	4
#26	Associated Electric Cooperative, Inc.	22.9 TWh	47
#13	Duke Energy Carolinas	111.3 TWh	556
#52	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	859.4 TWh	2,305
#20	Public Service Company of Colorado	48.6 TWh	201
#5	Southwest Power Pool	296.3 TWh	762
#51	Southwestern Power Administration	4.2 TWh	31
#8	Tennessee Valley Authority	158.9 TWh	170

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	859.4 TWh	2,305
#2	Midcontinent Independent System Operator, Inc.	645.5 TWh	2,653
#3	Electric Reliability Council of Texas, Inc.	474.5 TWh	1,139
#5	Southwest Power Pool	296.3 TWh	762
#6	Southern Company Services, Inc. - Trans	252.3 TWh	393
#7	California Independent System Operator	189.5 TWh	1,943
#8	Tennessee Valley Authority	158.9 TWh	170
#10	Florida Power & Light Co.	148.5 TWh	159
#12	New York Independent System Operator	130.9 TWh	1,100
#13	Duke Energy Carolinas	111.3 TWh	556