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	Nov 2025
Annual Generation	655.1 TWh
Power Plants	2,831
Utilities	1,296
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 \| 35.7% Coal \| 29% Wind \| 14.9% Nuclear \| 13.9% Solar \| 4.5% Water \| 1.5% Other Fuel \| 0.6%

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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
Taconite Ridge 1 Wind Energy Center	ALLETE, Inc.	Mountain Iron, MN	47 GWh	Apr 2008	Dec 2024	Wind
Mountain Lake	City of Mountain Lake - (MN)	Mountain Lake, MN	2 GWh	Apr 1954	Dec 2024	Wind : 97.7% Natural Gas : 1.8%
Odell Wind Farm	Algonquin Power Co	Mountain Lake, MN	773 GWh	Jun 2016	Dec 2024	Wind
Odin Wind Farm LLC	Aspenall Energies (Delaware), LLC	Mountainlake, MN	29 GWh	Apr 2008	Dec 2024	Wind
Mt. Hope DPC Solar	SoCore Energy LLC	Mt. Hope, WI	2 GWh	Dec 2016	Sep 2025	Solar
Interchange Solar, LLC	Interchange Solar, LLC	Mt. Morris, MI	4 GWh	Nov 2020	Dec 2024	Solar
Captain Solar, LLC	Captain Solar, LLC	Mt. Morris, MI	4 GWh	Nov 2020	Dec 2024	Solar
Central Michigan University	Central Michigan University	Mt. Pleasant, MI	30 GWh	Nov 1987	Sep 2025	Natural Gas
Munster Landfill Gas-to-Energy	Town of Munster	Munster, IN	4 GWh	Oct 2012	Dec 2024	Landfill Gas
Morgan Solar 2, LLC CSG	Morgan Solar 2, LLC	Murrayville, IL	4 GWh	Oct 2020	Dec 2024	Solar
Morgan Solar 4, LLC CSG	Morgan Solar 4, LLC	Murrayville, IL	4 GWh	Nov 2020	Dec 2024	Solar
Muscatine Plant #1	Board of Water Electric & Communications	Muscatine, IA	724 GWh	Mar 1958	Sep 2025	Subbituminous Coal : 99.7%
Louisa	MidAmerican Energy Co	Muscatine, IA	4 TWh	Sep 1983	Sep 2025	Subbituminous Coal : 99.2% Natural Gas : 0.8%
Lorin Industries	Lorin Industries	Muskegon, MI	5 GWh	Dec 1989	Dec 2024	Natural Gas
Petenwell	Wisconsin River Power Company	Necedah, WI	108 GWh	Jul 1949	Dec 2024	Water
Alliant Energy Neenah	Wisconsin Power & Light Co	Neenah, WI	740 GWh	Apr 2000	Dec 2024	Natural Gas
Hoist	Upper Peninsula Power Company	Negaunee, MI	13 GWh	Jan 1988	Dec 2024	Water
F.D. Kuester Generating Station	Upper Michigan Energy Resources Company	Negaunee, MI	375 GWh	Feb 2019	Dec 2024	Natural Gas
Georgia-Pacific Corp - Nekoosa Mill	Domtar Industries Inc	Nekoosa, WI	186 GWh	Dec 1911	Sep 2025	Black Liquor : 43.1% Natural Gas : 42.5% Water : 14.4%
Wood County	Wisconsin Power & Light Co	Nekoosa, WI	277 GWh	Nov 2022	Sep 2025	Solar
Shelby Energy County	Shelby County Energy Center, LLC	Neoga, IL	201 GWh	May 2000	Dec 2024	Natural Gas
Optimum Wind 3 LLC	Optimum Wind 3 LLC	Nevada, IA	10 GWh	Feb 2017	Dec 2024	Wind
Optimum Wind 5 LLC	Optimum Wind 5 LLC	Nevada, IA	9 GWh	Feb 2017	Dec 2024	Wind
Optimum Wind 6 LLC	Optimum Wind 6 LLC	Nevada, IA	9 GWh	Feb 2017	Dec 2024	Wind
Optimum Wind 7 LLC	Optimum Wind 7 LLC	Nevada, IA	11 GWh	Feb 2017	Dec 2024	Wind
Optimum Wind 4 LLC	Optimum Wind 4 LLC	Nevada, IA	10 GWh	Feb 2017	Dec 2024	Wind
New Auburn DPC Solar	SoCore Energy LLC	New Auburn, WI	4 GWh	Dec 2017	Sep 2025	Solar
New Castle Solar RES	Hoosier Energy R E C, Inc	New Castle, IN	2 GWh	Oct 2015	Dec 2024	Solar
Henry County	Duke Energy Indiana, LLC	New Castle, IN	345 GWh	Jun 2001	Dec 2024	Natural Gas
Montgomery County Community Solar Center	Union Electric Co - (MO)	New Florence, MO	9 GWh	Feb 2022	Dec 2024	Solar
New Germany Community Solar Garden	New Germany Solar I LLC	New Germany, MN	2 GWh	Mar 2018	Dec 2024	Solar
Chickasaw Wind Farm	MidAmerican Energy Co	New Hampton, IA	660 GWh	Nov 2023	Sep 2025	Wind
Webster Creek (Oak 2)	Greenbacker Renewable Energy Corporation	New Lisbon, WI	3 GWh	Nov 2023	Dec 2024	Solar
Whistling Winds DPC Solar	SoCore Energy LLC	New Lisbon, WI	2 GWh	May 2017	Sep 2025	Solar
New Lisbon Solar	Butter Solar, LLC	New Lisbon, WI	4 GWh	Aug 2019	Dec 2024	Solar
New Lisbon	City of New Lisbon	New Lisbon, WI	19 MWh	Dec 1965	Dec 2024	Distillate Fuel Oil
NLMU Wind	New London Municipal Utilities	New London, IA	4 GWh	Oct 2011	Dec 2024	Wind
New Orleans Power	Entergy New Orleans, LLC	New Orleans, LA	176 GWh	Apr 2020	Sep 2025	Natural Gas
ENO Paterson Solar	Entergy New Orleans, LLC	New Orleans, LA	1 GWh	May 2016	Dec 2024	Solar
TCI France	Entergy New Orleans, LLC	New Orleans, LA	2 GWh	Mar 2019	Dec 2024	Solar
TCI Alvar	Entergy New Orleans, LLC	New Orleans, LA	2 GWh	Mar 2019	Dec 2024	Solar
New Orleans Solar Station	Entergy New Orleans, LLC	New Orleans, LA	23 GWh	Nov 2019	Dec 2024	Solar
Bolduan CSG	Terraform Arcadia	New Richland, MN	2 GWh	Oct 2018	Dec 2024	Solar
Altair Community Solar Garden	National Grid Renewables	New Richmond, MN	2 GWh	Jan 2019	Dec 2024	Solar
Oxbow Solar 1	Lightsource Renewable Energy Asset Management, LLC	New Roads, LA	572 GWh	Jun 2024	Sep 2025	Solar
Big Cajun 2	Louisiana Generating LLC	New Roads, LA	2 TWh	Jun 1981	Sep 2025	Subbituminous Coal : 72.0% Natural Gas : 28.0%
Bison I Wind Energy Center	ALLETE, Inc.	New Salem, ND	166 GWh	Nov 2010	Dec 2024	Wind
Bison 3 Wind Energy Center	ALLETE, Inc.	New Salem, ND	223 GWh	Nov 2012	Dec 2024	Wind
Bison 2 Wind Energy Center	ALLETE, Inc.	New Salem, ND	219 GWh	Nov 2012	Dec 2024	Wind
Bison 4 Wind Energy Center	ALLETE, Inc.	New Salem, ND	624 GWh	Dec 2014	Dec 2024	Wind
New Ulm	New Ulm Public Utilities Comm	New Ulm, MN	2 GWh	Dec 1956	Dec 2024	Natural Gas : 95.4% Distillate Fuel Oil : 4.6%
Independence Steam Electric Station	Entergy Arkansas LLC	Newark, AR	5 TWh	Dec 1982	Sep 2025	Subbituminous Coal : 99.8%
Croton	Consumers Energy Co - (MI)	Newaygo, MI	29 GWh	Dec 1906	Dec 2024	Water
Hardy	Consumers Energy Co - (MI)	Newaygo, MI	72 GWh	May 1931	Dec 2024	Water
Fremont Community Digester, LLC	Generate Fremont Digester, LLC.	Newaygo, MI	375 MWh	Nov 2012	Dec 2024	Other Biomass Gas
Scotland Solar RES	Hoosier Energy R E C, Inc	Newberry, IN	2 GWh	Oct 2015	Dec 2024	Solar
Warrick	AGC Division of APGI Inc	Newburgh, IN	3 TWh	Mar 1960	Sep 2025	Bituminous Coal : 98.5% Natural Gas : 1.5%
F B Culley	Southern Indiana Gas & Elec Co	Newburgh, IN	1 TWh	Nov 1966	Sep 2025	Bituminous Coal : 96.1% Natural Gas : 3.9%
Harvest Ridge Wind Farm	Harvest Ridge Wind Farm	Newman, IL	678 GWh	Jun 2020	Sep 2025	Wind
Newport Solar Project	Newport Solar, LLC	Newport, AR	353 GWh	Sep 2023	Sep 2025	Solar
White River Medical Center	Entegrity Solar WRMC, LLC	Newport, AR	5 GWh	Sep 2023	Dec 2024	Solar
Farmers Electric Cooperative	Today's Power, Inc.	Newport, AR	2 GWh	May 2019	Dec 2024	Solar
Newton	Illinois Power Generating Co	Newton, IL	4 TWh	Oct 1977	Sep 2025	Subbituminous Coal : 99.9%
Little Quinnesec Falls Hydro Project	Eagle Creek Renewable Energy, LLC	Niagara, WI	57 GWh	Nov 1900	Dec 2024	Water
USS Flower Solar LLC CSG	Standard Solar	Nicollet, MN	2 GWh	Aug 2020	Dec 2024	Solar
Iris Solar, LLC (MN)	National Grid Renewables	Nicollet, MN	2 GWh	Sep 2020	Dec 2024	Solar
Noblesville	Duke Energy Indiana, LLC	Noblesville, IN	2 TWh	Aug 1950	Dec 2024	Natural Gas
Heartland Community College	Heartland Community College	Normal, IL	4 GWh	May 2012	Dec 2024	Wind
Big River Solar	Big River Solar, LLC	Norris City, IL	322 GWh	Jul 2022	Sep 2025	Solar
Cornillie 2 Community (CSG)	Cornillie 2 Community Solar LLC	North Branch, MN	2 GWh	Nov 2020	Dec 2024	Solar
Palmer Community Solar LLC CSG	Palmer Community Solar LLC	North Branch, MN	2 GWh	Jul 2021	Dec 2024	Solar
Cornillie Solar CSG	Madison Energy Holdings LLC	North Branch, MN	2 GWh	Nov 2021	Dec 2024	Solar
Novel Caroline Solar, LLC CSG	REA Investments, LLC	North Branch, MN	2 GWh	Apr 2023	Dec 2024	Solar
USS Solar Dawn CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Dec 2024	Solar
Sunrise Community Solar	Sunrise Community Solar	North Branch, MN	8 GWh	Nov 2016	Dec 2024	Solar
North Star Solar Project	North Star Solar PV LLC	North Branch, MN	181 GWh	Nov 2016	Sep 2025	Solar
Johnson II Community Solar	Johnson II CSG LLC	North Branch, MN	2 GWh	Aug 2018	Dec 2024	Solar
USS Norelius Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Dec 2018	Dec 2024	Solar
USS Nillie Corn Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Dec 2024	Solar
USS Kost Trail Solar CSG	Standard Solar	North Branch, MN	2 GWh	May 2019	Dec 2024	Solar
USS Dubhe Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Dec 2024	Solar
Coral Bells Solar, LLC	National Grid Renewables	North Branch, MN	2 GWh	Nov 2020	Dec 2024	Solar
Cornillie	Terraform Arcadia	North Branch, MN	2 GWh	Jul 2018	Dec 2024	Solar
Chisago Solar	Enel Green Power NA, Inc.	North Branch, MN	12 GWh	Nov 2016	Dec 2024	Solar
North Branch (MN)	North Branch Water & Light Comm	North Branch, MN	300 MWh	Sep 2003	Dec 2024	Distillate Fuel Oil
Two Pine Landfill Gas Recovery	WM Renewable Energy LLC	North Little Rock, AR	27 GWh	Sep 2006	Dec 2024	Landfill Gas
Murray	City of North Little Rock - (AR)	North Little Rock, AR	114 GWh	Sep 1988	Dec 2024	Water
NLRED 2MW	Today's Power, Inc.	North Little Rock, AR	80 MWh	Nov 2024	Dec 2024	Solar
POET Biorefining - North Manchester, LLC	POET Biorefining - North Manchester, LLC	North Manchester, IN	17 GWh	May 2017	Dec 2024	Natural Gas
Polaris Wind Park	DTE Electric Company	North Star Township, MI	452 GWh	Apr 2020	Sep 2025	Wind
St. Olaf Wind Turbine	St. Olaf College	Northfield, MN	3 GWh	Aug 2006	Dec 2024	Wind
Dundas Solar Holdings LLC CSG	Altus Power America Management, LLC	Northfield, MN	8 GWh	Feb 2018	Sep 2025	Solar
Northfield Solar CSG	Altus Power America Management, LLC	Northfield, MN	9 GWh	Jun 2020	Dec 2024	Solar
Northfield Holdco CSG	Northfield Holdco LLC	Northfield, MN	8 GWh	Nov 2017	Dec 2024	Solar
Northfield Community Solar	Northfield Community Solar	Northfield, MN	8 GWh	Nov 2016	Dec 2024	Solar
Hyacinth Solar, LLC	National Grid Renewables	Northfield, MN	2 GWh	Sep 2020	Dec 2024	Solar
Carleton College	Carleton College	Northfield, MN	8 GWh	Aug 2004	Dec 2024	Wind : 99.8%
Chub Garden Solar	Chub Garden LLC	Northfield, MN	2 GWh	Feb 2020	Dec 2024	Solar
St. Olaf StandBy Generators	St. Olaf College	Northfield, MN	31 MWh	May 1999	Dec 2024	Distillate Fuel Oil
USS Hubers Solar LLC CSG	United States Solar Corporation	Northfield, MN	2 GWh	Dec 2020	Dec 2024	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	696.7 GWh	4
#27	Associated Electric Cooperative, Inc.	23.6 TWh	47
#13	Duke Energy Carolinas	112.5 TWh	565
#52	Duke Energy Progress West	4.3 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	34.4 TWh	25
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#5	Southwest Power Pool	299.9 TWh	835
#49	Southwestern Power Administration	5.2 TWh	34
#9	Tennessee Valley Authority	161.6 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	655.1 TWh	2,831
#4	Electric Reliability Council of Texas, Inc.	485.0 TWh	1,313
#5	Southwest Power Pool	299.9 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	188.0 TWh	2,075
#9	Tennessee Valley Authority	161.6 TWh	204
#10	Florida Power & Light Co.	148.9 TWh	187
#12	New York Independent System Operator	131.6 TWh	1,211
#13	Duke Energy Carolinas	112.5 TWh	565