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
Taurus Community Solar	Taurus Community Solar	Montevideo, MN	6 GWh	Feb 2018	Dec 2024	Solar
USS Christoffer Solar LLC CSG	Standard Solar	Montevideo, MN	2 GWh	Aug 2020	Dec 2024	Solar
Montevideo Solar LLC, CSG	Montevideo Solar LLC	Montevideo, MN	10 GWh	Dec 2018	Dec 2024	Solar
USS Rosewood Solar LLC (CSG)	United States Solar Corporation	Montevideo, MN	544 MWh	Jul 2024	Dec 2024	Solar
USS Riley Solar LLC (CSG)	United States Solar Corporation	Montevideo, MN	2 GWh	Nov 2023	Dec 2024	Solar
Hormel CSG Solar	DG Central 1, LLC	Montevideo, MN	2 GWh	Nov 2022	Dec 2024	Solar
Macbeth Solar	Macbeth Solar, LLC	Montague, MI	39 GWh	Apr 2022	Dec 2024	Solar
Monroe (MI)	DTE Electric Company	Monroe, MI	16 TWh	Oct 1969	Feb 2026	Subbituminous Coal : 74.7% Bituminous Coal : 16.2% Petroleum Coke : 8.9%
Cavalry Solar Hybrid	Cavalry Energy Center LLC	Monon, IN	366 GWh	Apr 2024	Feb 2026	Solar
Earp Solar, LLC	Birch Creek Power, LLC	Monmouth, IL	76 GWh	Mar 2024	Feb 2026	Solar
Amazon MDW7 Solar Project	Solar Star Prime 6, LLC	Monee, IL	3 GWh	Oct 2022	Dec 2024	Solar
Moline	MidAmerican Energy Co	Moline, IL	19 GWh	Dec 1941	Dec 2024	Water : 94.4% Natural Gas : 5.6%
Moberly	Union Electric Co - (MO)	Moberly, MO	34 MWh	Jul 1978	Dec 2024	Distillate Fuel Oil
Metro Methane Recovery Facility	WM Renewable Energy LLC	Mitchellville, IA	85 GWh	Dec 1997	Feb 2026	Landfill Gas
Lawrence County Station	Hoosier Energy R E C, Inc	Mitchell, IN	109 GWh	Apr 2005	Dec 2024	Natural Gas
Spring Mill Solar RES	Hoosier Energy R E C, Inc	Mitchell, IN	2 GWh	Aug 2017	Dec 2024	Solar
Mio	Consumers Energy Co - (MI)	Mio, MI	14 GWh	Dec 1915	Dec 2024	Water
Bennington Wind	Minonk Stewardship Wind LLC	Minonk, IL	300 GWh	Sep 2021	Feb 2026	Wind
CF Novel Solar CSG Gardens Two, LLC	Cypress Creek Renewables	Minnesota Lake, MN	3 GWh	Nov 2017	Dec 2024	Solar
Novel Denzer Solar LLC CSG	REA Investments, LLC	Minnesota City, MN	2 GWh	Jun 2022	Dec 2024	Solar
Hennepin Island	Northern States Power Co - Minnesota	Minneapolis, MN	47 GWh	Sep 1954	Dec 2024	Water
Riverside (MN)	Northern States Power Co - Minnesota	Minneapolis, MN	50 GWh	Mar 1987	Feb 2026	Natural Gas
Covanta Hennepin Energy	Covanta Energy Co	Minneapolis, MN	170 GWh	Sep 1989	Feb 2026	Non-biogenic Municipal Solid Waste : 54.5% Biogenic Municipal Solid Waste : 44.6% Natural Gas : 0.8%
SAF Hydroelectric LLC	SAF Hydroelectric LLC	Minneapolis, MN	29 GWh	Nov 2011	Dec 2024	Water
Univ Minnesota CHP Plant	University of Minnesota Central Utilities	Minneapolis, MN	166 GWh	Oct 2017	Dec 2024	Natural Gas : 99.9%
Michigan Wind 2	Michigan Wind 2, LLC	Minden City, MI	327 GWh	Nov 2011	Dec 2024	Wind
Minden Wind Park	DTE Electric Company	Minden City, MI	112 GWh	Nov 2012	Feb 2026	Wind
City of Milwaukee Landfill	Wisconsin Electric Power Co	Milwaukee, WI	4 GWh	Jan 2021	Dec 2024	Solar
MMSD Jones Island Wastewater	Milwaukee Metro Sewerage Dist	Milwaukee, WI	82 GWh	Dec 1970	Feb 2026	Natural Gas : 80.4% Landfill Gas : 18.6% Distillate Fuel Oil : 1.1%
Valley (WI)	Wisconsin Electric Power Co	Milwaukee, WI	365 GWh	May 1968	Feb 2026	Natural Gas
Miles City GT	Montana-Dakota Utilities Co	Miles City, MT	331 MWh	Apr 1972	Dec 2024	Natural Gas : 97.0% Distillate Fuel Oil : 3.0%
Valley Queen Cheese	Valley Queen Cheese Factory, Inc.	Milbank, SD	19 MWh	Mar 2002	Feb 2026	Distillate Fuel Oil
White Tail Solar	White Tail Solar, LLC	Milan, MI	32 GWh	-	Feb 2026	Solar
Midland Cogeneration Venture	Midland Cogeneration Venture	Midland, MI	10 TWh	May 1989	Feb 2026	Natural Gas
IMPA Middletown Solar Park	Indiana Municipal Power Agency	Middletown, IN	3 GWh	Jul 2023	Dec 2024	Solar
Middleton Biogas Solar, LLC	Middleton Biogas Solar, LLC	Middleton, WI	2 GWh	Apr 2022	Dec 2024	Solar
Middleton Airport Solar	Madison Gas & Electric Co	Middleton, WI	8 GWh	Jun 2020	Dec 2024	Solar
Heartland Farms	Consumers Energy Co - (MI)	Middleton, MI	464 GWh	Mar 2024	Feb 2026	Wind
Middlebury Solar	Ecos Energy LLC	Middlebury, IN	457 MWh	Oct 2012	Oct 2024	Solar
Amana Society Service Company	Amana Society Service Co	Middle Amana, IA	1 GWh	Apr 2001	Dec 2024	Distillate Fuel Oil
Deercroft I & II LFGTE	Wabash Valley Power Assn, Inc	Michigan City, IN	19 GWh	Jul 1999	Dec 2024	Landfill Gas
Michigan City	Northern Indiana Pub Serv Co	Michigan City, IN	2 TWh	Apr 1974	Feb 2026	Subbituminous Coal : 78.2% Bituminous Coal : 20.5% Natural Gas : 1.4%
Mexico	Union Electric Co - (MO)	Mexico, MO	767 MWh	Aug 1978	Dec 2024	Distillate Fuel Oil
Envoy Solar, LLC	Birch Creek Power, LLC	Mexico, MO	108 GWh	-	Feb 2026	Solar
Hodenpyl	Consumers Energy Co - (MI)	Mesick, MI	40 GWh	Jun 1925	Dec 2024	Water
Lincoln Solar	Ecos Energy LLC	Merrillville, IN	608 MWh	Nov 2012	Dec 2024	Solar
Strobus	Greenbacker Renewable Energy Corporation	Merrillan, WI	3 GWh	Aug 2021	Dec 2024	Solar
Merrill	Wisconsin Public Service Corp	Merrill, WI	4 GWh	Feb 1917	Dec 2024	Water
Alexander	Wisconsin Public Service Corp	Merrill, WI	19 GWh	Dec 1924	Dec 2024	Water
Meridian Wind Park	DTE Electric Company	Merrill, MI	492 GWh	Mar 2023	Feb 2026	Wind
Morgan Solar 1 CSG	Morgan Solar 1 LLC	Meredosia, IL	4 GWh	Jul 2021	Dec 2024	Solar
Morgan Solar 1b CSG	Morgan Solar 1b LLC	Meredosia, IL	3 GWh	Jul 2021	Dec 2024	Solar
Bayou Galion Solar Project	Bayou Galion Solar Project, LLC	Mer Rouge, LA	225 GWh	Oct 2024	Feb 2026	Solar
Menomonie	Northern States Power Co - Minnesota	Menomonie, WI	24 GWh	Dec 1957	Dec 2024	Water
Cedar Falls (WI)	Northern States Power Co - Minnesota	Menomonie, WI	34 GWh	Dec 1909	Dec 2024	Water
Downsville DPC Solar	SoCore Energy LLC	Menomonee, WI	2 GWh	Jan 2017	Feb 2026	Solar
Harley-Davison Powertrain Operations	Wisconsin Electric Power Co	Menomonee Falls, WI	3 GWh	Sep 2020	Dec 2024	Solar
Menominee Mill Marinette	Eagle Creek Renewable Energy, LLC	Menominee, MI	11 GWh	Dec 1923	Feb 2026	Water
Heartland Divide Wind Project, LLC	Heartland Divide Wind Project, LLC	Melville, IA	417 GWh	Nov 2018	Feb 2026	Wind
USS Midtown Solar LLC CSG	Standard Solar	Melrose, MN	2 GWh	Nov 2019	Dec 2024	Solar
Melrose 2	Melrose Public Utilities	Melrose, MN	3 MWh	Feb 2014	Dec 2024	Distillate Fuel Oil
New Munich Solar	New Munich Solar LLC	Melrose, MN	2 GWh	Aug 2019	Dec 2024	Solar
Melrose	Melrose Public Utilities	Melrose, MN	49 MWh	Jun 1945	Dec 2024	Distillate Fuel Oil
Medford DPC Solar	SoCore Energy LLC	Medford, WI	3 GWh	Jan 2017	Feb 2026	Solar
Anchor Wind, LLC	Acciona Energy USA Global, LLC	Mechanicsville, IA	6 GWh	Sep 2012	May 2024	Wind
Pioneer Prairie Wind Farm	Pioneer Prairie Wind Farm I, LLC	McIntire, IA	840 GWh	Sep 2008	Feb 2026	Wind
McGregor	City of McGregor- (IA)	McGregor, IA	7 MWh	Nov 1941	Dec 2024	Distillate Fuel Oil
National Energy of McBain	National Salvage & Service Corporation	McBain, MI	122 GWh	Nov 1988	Dec 2024	Wood/Wood Waste Solids : 88.5% Tire-derived Fuels : 11.2%
Stoney Corners Wind Farm	DTE Sustainable Generation	McBain, MI	127 GWh	Nov 2009	Dec 2024	Wind
Rochester Hydro	Rochester Public Utilities	Mazeppa, MN	10 GWh	Aug 1984	Dec 2024	Water
Novel Sunnyfield Farms Solar LLC CSG	REA Investments, LLC	Mazeppa, MN	2 GWh	May 2022	Dec 2024	Solar
Siems Solar Project CSG	Siems Community Solar LLC	Mazeppa, MN	2 GWh	Jul 2020	Dec 2024	Solar
Butler Ridge	Butler Ridge Wind Energy Center	Mayville, WI	142 GWh	Jan 2009	Feb 2026	Wind
Centaurus Community Solar	Centaurus Community Solar	Maynard, MN	3 GWh	Aug 2017	Dec 2024	Solar
Wolverine Solar	Wolverine Solar, LLC	Maynard, MN	2 GWh	Oct 2023	Dec 2024	Solar
USS Dressen Family Solar LLC	United States Solar Corporation	Mayer, MN	2 GWh	Jun 2023	Dec 2024	Solar
Lemonweir (Oak 1)	Greenbacker Renewable Energy Corporation	Mauston, WI	6 GWh	Nov 2023	Dec 2024	Solar
Elroy Solar	Butter Solar, LLC	Mauston, WI	2 GWh	Aug 2019	Dec 2024	Solar
Rolling Hills Wind Farm	MidAmerican Energy Co	Massena, IA	2 TWh	Nov 2011	Feb 2026	Wind
Blue Elk II Solar, LLC	Blue Elk II Solar, LLC	Mason, MI	26 GWh	Apr 2024	Dec 2024	Solar
CED Mason City Wind	Consolidated Edison Development Inc.	Mason City, IA	24 GWh	Apr 2020	Dec 2024	Wind
Lime Creek	Interstate Power and Light Co	Mason City, IA	115 MWh	Apr 1991	Aug 2024	Distillate Fuel Oil
Salt Creek Township Solar, LLC	Birch Creek Power, LLC	Mason City, IL	106 GWh	-	Feb 2026	Solar
Glacier Sands Wind Power, LLC	Glacier Sands Wind Power, LLC	Mason City, IL	627 GWh	Oct 2021	Feb 2026	Wind
Moraine Sands Wind Power	Moraine Sands Wind Power, LLC	Mason City, IL	553 GWh	Nov 2023	Feb 2026	Wind
Dakota Range Wind	Northern States Power Co - Minnesota	Marvin, SD	989 GWh	Dec 2021	Feb 2026	Wind
Eagle Valley (IN)	AES Indiana	Martinsville, IN	6 TWh	Nov 1951	Feb 2026	Natural Gas
Marshfield Utilities Gas Plant	City of Marshfield - (WI)	Marshfield, WI	4 GWh	May 2011	Dec 2024	Natural Gas
Marshalltown	Interstate Power and Light Co	Marshalltown, IA	79 GWh	May 1978	Dec 2024	Natural Gas
Alliant SBD 9107 JBS USA	Industrial Energy Applications Inc	Marshalltown, IA	62 MWh	Jul 1992	Feb 2026	Distillate Fuel Oil
Marshalltown Generating Station	Interstate Power and Light Co	Marshalltown, IA	3 TWh	Mar 2017	Feb 2026	Natural Gas : 99.9%
Vienna Wind Farm	MidAmerican Energy Co	Marshalltown, IA	398 GWh	Oct 2012	Dec 2024	Wind
Marshall Wind 4 LLC	Marshall Wind Farm, LLC	Marshall, MN	6 GWh	Nov 2007	Dec 2024	Wind
Marshall Wind 6 LLC	Marshall Wind Farm, LLC	Marshall, MN	3 GWh	Nov 2007	Dec 2024	Wind
Marshall Wind 3 LLC	Marshall Wind Farm, LLC	Marshall, MN	6 GWh	Nov 2007	Dec 2024	Wind
Marshall Wind 5 LLC	Marshall Wind Farm, LLC	Marshall, MN	2 GWh	Nov 2007	Dec 2024	Wind
Marshall Wind 2 LLC	Marshall Wind Farm, LLC	Marshall, MN	6 GWh	Nov 2007	Dec 2024	Wind
Marshall Wind 1 LLC	Marshall Wind Farm, LLC	Marshall, MN	3 GWh	Nov 2007	Dec 2024	Wind
Marshall Solar Energy Project	Marshall Solar Energy Project	Marshall, MN	96 GWh	Dec 2016	Feb 2026	Solar
Marshall (MN)	City of Marshall - (MN)	Marshall, MN	60 MWh	Jun 1969	Dec 2024	Distillate Fuel Oil

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