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	Oct 2026
Annual Generation	677.7 TWh
Power Plants	3,095
Utilities	1,372
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 \| 37.1% Coal \| 26.2% Wind \| 15% Nuclear \| 13.8% Solar \| 6.1% 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
Montgomery County Community Solar Center	Union Electric Co - (MO)	New Florence, MO	7 GWh	Feb 2022	Dec 2025	Solar
Montgomery County	Entergy Texas Inc.	Willis, TX	6 TWh	Dec 2020	Jul 2026	Natural Gas
Montfort Wind Energy Center	Wisconsin Electric Power Co	Montfort, WI	50 GWh	May 2002	Jul 2026	Wind
Montezuma	City of Montezuma - (IA)	Montezuma, IA	115 MWh	Jul 1940	Dec 2025	Distillate Fuel Oil : 67.9% Natural Gas : 32.1%
Montevideo Solar LLC, CSG	Montevideo Solar LLC	Montevideo, MN	10 GWh	Dec 2018	Dec 2025	Solar
Monroe (MI)	DTE Electric Company	Monroe, MI	15 TWh	Oct 1969	Jul 2026	Subbituminous Coal : 75.2% Bituminous Coal : 15.6% Petroleum Coke : 9.0%
Mondu Solar LLC	Mondu Solar LLC	Livonia, LA	93 GWh	-	Jul 2026	Solar
Moline	MidAmerican Energy Co	Moline, IL	21 GWh	Dec 1941	Dec 2025	Water : 97.0% Natural Gas : 3.0%
Moberly	Union Electric Co - (MO)	Moberly, MO	257 MWh	Jul 1978	Dec 2025	Distillate Fuel Oil
MNDOT Standby Generation	State of Minnesota Department of Administration	St. Paul, MN	47 MWh	Jun 1995	Jul 2026	Distillate Fuel Oil
MN East Regal LLC (CSG)	United States Solar Corporation	Paynesville, MN	2 GWh	Jul 2024	Dec 2025	Solar
MN CSG 2019-82	MN CSG 2019-82 LLC	Atwater, MN	1 GWh	Nov 2024	Dec 2025	Solar
MN CSG 2019-79	MN CSG 2019-79 LLC	Granite Falls, MN	573 MWh	Apr 2025	Dec 2025	Solar
MN CSG 2019-77	MN CSG 2019-77 LLC	Northfield, MN	1 GWh	Apr 2025	Dec 2025	Solar
MN CSG 2019-67	MN CSG 2019-67 LLC	Clear Lake, MN	2 GWh	Feb 2025	Dec 2025	Solar
MN CSG 2019-60	MN CSG 2019-60 LLC	Buffalo Lake, MN	2 GWh	Nov 2024	Dec 2025	Solar
MN CSG 2019-38 DE LLC	MN CSG 2019-38 DE LLC	Cleveland, MN	2 GWh	Oct 2022	Dec 2025	Solar
MN CSG 2019-22	MN CSG 2019-22 LLC	Danube, MN	2 GWh	Mar 2025	Dec 2025	Solar
MN CSG 2019-16 LLC	MN CSG 2019-16 LLC	Mankato, MN	2 GWh	May 2022	Dec 2025	Solar
MN CSG 2019-113	MN CSG 2019-113 LLC	Montevideo, MN	237 MWh	Sep 2025	Dec 2025	Solar
MN CSG 2019-105	MN CSG 2019-105 LLC	Wabash, MN	1 GWh	Apr 2025	Dec 2025	Solar
MN Buffalo Lake 212-2 LLC (CSG)	United States Solar Corporation	Buffalo Lake, MN	2 GWh	Nov 2023	Dec 2025	Solar
MN Buffalo Lake 212-1 LLC (CSG)	United States Solar Corporation	Buffalo Lake, MN	2 GWh	Nov 2023	Dec 2025	Solar
MMSD South Shore Wastewater	Milwaukee Metro Sewerage Dist	Oak Creek, WI	23 GWh	Jul 2000	Dec 2025	Other Biomass Gas : 88.5% Natural Gas : 11.5%
MMSD Jones Island Wastewater	Milwaukee Metro Sewerage Dist	Milwaukee, WI	83 GWh	Dec 1970	Jul 2026	Natural Gas : 87.1% Landfill Gas : 11.9% Distillate Fuel Oil : 1.0%
Mission Road Solar Park	DTE Electric Company	Rosebush, MI	137 GWh	-	Jul 2026	Solar
Mio	Consumers Energy Co - (MI)	Mio, MI	14 GWh	Dec 1915	Dec 2025	Water
Minwind	Community Renewables, LLC	Luverne, MN	276 MWh	Sep 2002	Dec 2024	Wind
Minnesota River	Minnesota Municipal Power Agny	Chaska, MN	7 GWh	Apr 2001	Jan 2025	Natural Gas
Minnesota Breeze LLC	Midwest Power Partners LLC	Rushmore, MN	3 GWh	Apr 2006	Dec 2025	Wind
MinnDakota Wind LLC	Avangrid Power LLC	Ivanhoe, MN	337 GWh	Dec 2007	Dec 2025	Wind
Minden Wind Park	DTE Electric Company	Minden City, MI	109 GWh	Nov 2012	Jul 2026	Wind
Milton R Young	Minnkota Power Coop, Inc	Center, ND	4 TWh	Sep 1970	Jul 2026	Lignite Coal : 99.8%
Miles City GT	Montana-Dakota Utilities Co	Miles City, MT	2 GWh	Apr 1972	Dec 2025	Natural Gas : 99.7%
Milam Gas Recovery	WM Illinois Renewable Energy LLC	East St. Lois, IL	19 GWh	Mar 1991	Dec 2025	Natural Gas
Midland Cogeneration Venture	Midland Cogeneration Venture	Midland, MI	10 TWh	May 1989	Jul 2026	Natural Gas
Middleton Biogas Solar, LLC	Middleton Biogas Solar, LLC	Middleton, WI	2 GWh	Apr 2022	Dec 2025	Solar
Middleton Airport Solar	Madison Gas & Electric Co	Middleton, WI	7 GWh	Jun 2020	Dec 2025	Solar
Middlebury Solar	Ecos Energy LLC	Middlebury, IN	2 GWh	Oct 2012	Dec 2025	Solar
Midcontinent Solar, LLC	Midcontinent Solar, LLC	Owosso, MI	38 GWh	Sep 2023	Dec 2025	Solar
Michigan Wind 2	Michigan Wind 2, LLC	Minden City, MI	329 GWh	Nov 2011	Dec 2025	Wind
Michigan Wind 1	Michigan Wind 1, LLC	Ubly, MI	165 GWh	Nov 2008	Dec 2025	Wind
Michigan Power LP	Michigan Power Limited Partnership	Ludington, MI	1 TWh	Sep 1995	Dec 2025	Natural Gas
Michigan City	Northern Indiana Pub Serv Co	Michigan City, IN	2 TWh	Apr 1974	Jul 2026	Subbituminous Coal : 78.0% Bituminous Coal : 20.3% Natural Gas : 1.7%
Michigamme Falls	Wisconsin Electric Power Co	Crystal Falls, MI	29 GWh	May 1953	Dec 2025	Water
Michelangelo Wind 4 LLC	Novis Renewables, LLC	Ames, IA	10 GWh	Nov 2016	Dec 2025	Wind
Michelangelo Wind 3 LLC	Michelangelo Wind 3 LLC	Huxley, IA	10 GWh	Jan 2017	Dec 2025	Wind
Michelangelo Wind 1 LLC	Novis Renewables, LLC	Huxley, IA	10 GWh	Feb 2017	Dec 2025	Wind
Michael Solar	SoCore Energy LLC	Freeport, MN	7 GWh	Nov 2017	Dec 2025	Solar
Mexico	Union Electric Co - (MO)	Mexico, MO	2 GWh	Aug 1978	Dec 2025	Distillate Fuel Oil
Metro Methane Recovery Facility	WM Renewable Energy LLC	Mitchellville, IA	83 GWh	Dec 1997	Jul 2026	Landfill Gas
Metro Gas Recovery	WM Renewable Energy LLC	Franklin, WI	41 GWh	Nov 1985	Dec 2025	Landfill Gas
Merrill	Wisconsin Public Service Corp	Merrill, WI	4 GWh	Feb 1917	Dec 2025	Water
Merricourt Wind Energy Center	Otter Tail Power Co	Kulm, ND	565 GWh	Nov 2020	Jul 2026	Wind
Merom	Hallador Power Company, LLC	Sullivan, IN	4 TWh	Jan 1982	Jun 2026	Bituminous Coal : 99.6%
Merl Parr	MidAmerican Energy Co	Charles City, IA	3 GWh	Apr 1969	Dec 2025	Natural Gas
Meridian Wind Park	DTE Electric Company	Merrill, MI	482 GWh	Mar 2023	Jul 2026	Wind
Menomonie	Northern States Power Co - Minnesota	Menomonie, WI	23 GWh	Dec 1957	Dec 2025	Water
Menominee Mill Marinette	Eagle Creek Renewable Energy, LLC	Menominee, MI	9 GWh	Dec 1923	Jul 2026	Water
Melrose 2	Melrose Public Utilities	Melrose, MN	4 MWh	Feb 2014	Dec 2025	Distillate Fuel Oil
Melrose	Melrose Public Utilities	Melrose, MN	71 MWh	Jun 1945	Dec 2025	Distillate Fuel Oil
Meeker Community Solar One LLC CSG	Madison Energy Holdings LLC	Dassel, MN	2 GWh	Nov 2019	Dec 2025	Solar
Medin CSG	Madison Energy Holdings LLC	Center City, MN	2 GWh	Nov 2021	Dec 2025	Solar
Medin 2 Community Solar LLC CSG	Medin 2 Community Solar LLC	Center City, MN	2 GWh	Jul 2021	Dec 2025	Solar
Medford DPC Solar	SoCore Energy LLC	Medford, WI	3 GWh	Jan 2017	Jul 2026	Solar
Medanos Solar LLC	Dimension Energy LLC	Homer, IL	96 MWh	Nov 2025	Dec 2025	Solar
Meadow Ridge	Meadow Ridge Wind Energy, LLC	Greenfield, IA	2 GWh	Jun 2012	Dec 2025	Wind
Meadow Lake Wind Farm VI LLC	Meadow Lake Wind Farm VI LLC	Remington, IN	663 GWh	Oct 2018	Jul 2026	Wind
McLeod Community Solar One LLC CSG	Madison Energy Holdings LLC	Stewart, MN	2 GWh	Nov 2019	Dec 2025	Solar
McLeansboro	City of McLeansboro - (IL)	McLeansboro, IL	42 MWh	Nov 1950	Dec 2025	Distillate Fuel Oil
McKinley Wind Park	DTE Electric Company	Pigeon, MI	52 GWh	Nov 2012	Jul 2026	Wind
McGregor	City of McGregor- (IA)	McGregor, IA	11 MWh	Nov 1941	Dec 2025	Distillate Fuel Oil
McDonough Solar 1, LLC CSG	McDonough Solar 1, LLC	Blandinsville, IL	4 GWh	Nov 2020	Dec 2025	Solar
McDonald Solar Farm, LLC	Cypress Creek Renewables	West Terre Haute, IN	8 GWh	Nov 2015	Dec 2025	Solar
McClure Dam	Upper Peninsula Power Company	Marquette, MI	26 GWh	Jan 1988	Dec 2025	Water
McClellan (AR)	Arkansas Electric Coop Corp	Camden, AR	27 GWh	Apr 1972	Oct 2025	Natural Gas : 85.3% Distillate Fuel Oil : 14.7%
Maywood Photovoltaic Project	ENI New Energy US Inc	Indianapolis, IN	11 GWh	Feb 2014	Dec 2024	Solar
May Shannon Solar, LLC	May Shannon Solar, LLC	Clio, MI	4 GWh	Nov 2020	Dec 2025	Solar
Maston Garden Solar	Maston Garden LLC	Kasson, MN	2 GWh	Apr 2020	Dec 2025	Solar
Marshfield Utilities Gas Plant	City of Marshfield - (WI)	Marshfield, WI	19 GWh	May 2011	Dec 2025	Natural Gas
Marshalltown Generating Station	Interstate Power and Light Co	Marshalltown, IA	3 TWh	Mar 2017	Jul 2026	Natural Gas : 99.9%
Marshalltown	Interstate Power and Light Co	Marshalltown, IA	20 GWh	May 1978	Dec 2025	Natural Gas
Marshall Wind 6 LLC	Marshall Wind Farm, LLC	Marshall, MN	3 GWh	Nov 2007	Dec 2025	Wind
Marshall Wind 5 LLC	Marshall Wind Farm, LLC	Marshall, MN	2 GWh	Nov 2007	Dec 2025	Wind
Marshall Wind 4 LLC	Marshall Wind Farm, LLC	Marshall, MN	4 GWh	Nov 2007	Dec 2025	Wind
Marshall Wind 3 LLC	Marshall Wind Farm, LLC	Marshall, MN	4 GWh	Nov 2007	Dec 2025	Wind
Marshall Wind 2 LLC	Marshall Wind Farm, LLC	Marshall, MN	5 GWh	Nov 2007	Nov 2025	Wind
Marshall Wind 1 LLC	Marshall Wind Farm, LLC	Marshall, MN	1 GWh	Nov 2007	Dec 2025	Wind
Marshall Solar Plus LLC	Western Minnesota Mun Pwr Agny	Marshall, MN	17 GWh	Nov 2024	Dec 2025	Solar
Marshall Solar (IL)	Altorfer Inc.	Marshall, IL	1 MWh	Mar 2025	Jan 2025	Solar
Marshall Solar Energy Project	Marshall Solar Energy Project	Marshall, MN	97 GWh	Dec 2016	Jul 2026	Solar
Marshall (MN)	City of Marshall - (MN)	Marshall, MN	93 MWh	Jun 1969	Dec 2025	Distillate Fuel Oil
Marshall (MI)	City of Marshall - (MI)	Marshall, MI	638 MWh	May 1928	Dec 2025	Water
Marshall (IL)	City of Marshall - (IL)	Marshall, IL	167 MWh	Mar 2002	Dec 2025	Distillate Fuel Oil
Marquette Energy Center	City of Marquette - (MI)	Marquette, MI	164 GWh	Jul 2017	Dec 2025	Natural Gas : 98.9% Distillate Fuel Oil : 1.1%
Marmas Solar CSG	Geronimo Power	St. Cloud, MN	5 GWh	Mar 2018	Dec 2025	Solar
Marlow Solar, LLC CSG	Marlow Solar, LLC	Bluford, IL	4 GWh	Nov 2020	Dec 2025	Solar
Markland	Duke Energy Indiana, LLC	Florence, IN	253 GWh	Dec 1966	Dec 2025	Water
Marion Solar LNG	Marion Solar LLC	Indianapolis, IN	2 GWh	Sep 2015	Dec 2025	Solar
Marion Solar 4b LLC	Pivot Energy	Sandoval, IL	4 GWh	Apr 2024	Dec 2025	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	433.0 GWh	4
#26	Associated Electric Cooperative, Inc.	22.9 TWh	47
#13	Duke Energy Carolinas	113.4 TWh	578
#50	Duke Energy Progress West	4.6 TWh	15
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.2 TWh	25
#1	PJM Interconnection, LLC	890.9 TWh	2,806
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#5	Southwest Power Pool	314.5 TWh	876
#53	Southwestern Power Administration	3.5 TWh	37
#9	Tennessee Valley Authority	166.2 TWh	209

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	890.9 TWh	2,806
#2	Midcontinent Independent System Operator, Inc.	677.7 TWh	3,095
#3	Electric Reliability Council of Texas, Inc.	506.3 TWh	1,487
#5	Southwest Power Pool	314.5 TWh	876
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#7	California Independent System Operator	168.7 TWh	2,170
#9	Tennessee Valley Authority	166.2 TWh	209
#10	Florida Power & Light Co.	153.0 TWh	188
#12	New York Independent System Operator	134.1 TWh	1,334
#13	Duke Energy Carolinas	113.4 TWh	578