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
New Lisbon Solar	Green Street Power Partners	New Lisbon, WI	4 GWh	Aug 2019	Dec 2025	Solar
New Lisbon	City of New Lisbon (WI)	New Lisbon, WI	55 MWh	Dec 1965	Dec 2025	Distillate Fuel Oil
NLMU Wind	New London Municipal Utilities - (IA)	New London, IA	5 GWh	Oct 2011	Dec 2025	Wind
New Orleans Power	Entergy New Orleans, LLC	New Orleans, LA	157 GWh	Apr 2020	May 2026	Natural Gas
ENO Paterson Solar	Entergy New Orleans, LLC	New Orleans, LA	1 GWh	May 2016	Dec 2025	Solar
TCI Alvar	Entergy New Orleans, LLC	New Orleans, LA	2 GWh	Mar 2019	Dec 2025	Solar
TCI France	Entergy New Orleans, LLC	New Orleans, LA	1 GWh	Mar 2019	Dec 2025	Solar
New Orleans Solar Station	Entergy New Orleans, LLC	New Orleans, LA	1 GWh	Nov 2019	Dec 2025	Solar
New Prague	New Prague Utilities Comm	New Prague, MN	1 GWh	Jul 1944	Dec 2025	Natural Gas : 76.4% Distillate Fuel Oil : 23.6%
Bolduan CSG	Terraform Arcadia	New Richland, MN	2 GWh	Oct 2018	Dec 2025	Solar
Altair Community Solar Garden	Geronimo Power	New Richmond, MN	2 GWh	Jan 2019	Dec 2025	Solar
Big Cajun 2	Louisiana Generating LLC	New Roads, LA	2 TWh	Jun 1981	May 2026	Subbituminous Coal : 69.2% Natural Gas : 30.8%
Oxbow Solar 1	Lightsource Renewable Energy Asset Management, LLC	New Roads, LA	532 GWh	Jun 2024	May 2026	Solar
Bison 3 Wind Energy Center	ALLETE, Inc.	New Salem, ND	268 GWh	Nov 2012	Dec 2025	Wind
Bison 2 Wind Energy Center	ALLETE, Inc.	New Salem, ND	270 GWh	Nov 2012	Dec 2025	Wind
Bison 4 Wind Energy Center	ALLETE, Inc.	New Salem, ND	573 GWh	Dec 2014	Dec 2025	Wind
Bison I Wind Energy Center	ALLETE, Inc.	New Salem, ND	196 GWh	Nov 2010	Dec 2025	Wind
New Ulm	New Ulm Public Utilities Comm	New Ulm, MN	2 GWh	Dec 1956	Dec 2025	Natural Gas : 59.1% Distillate Fuel Oil : 40.9%
Independence Steam Electric Station	Entergy Arkansas LLC	Newark, AR	7 TWh	Dec 1982	May 2026	Subbituminous Coal : 99.9%
Hardy	Consumers Energy Co - (MI)	Newaygo, MI	65 GWh	May 1931	Dec 2025	Water
Croton	Consumers Energy Co - (MI)	Newaygo, MI	29 GWh	Dec 1906	Dec 2025	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	1 GWh	Oct 2015	Dec 2025	Solar
F B Culley	Southern Indiana Gas & Elec Co	Newburgh, IN	1 TWh	Nov 1966	May 2026	Bituminous Coal : 98.0% Natural Gas : 2.0%
Warrick	AGC Division of APGI Inc	Newburgh, IN	3 TWh	Mar 1960	May 2026	Bituminous Coal : 98.3% Natural Gas : 1.7%
Harvest Ridge Wind Farm	Harvest Ridge Wind Farm	Newman, IL	707 GWh	Jun 2020	May 2026	Wind
Farmers Electric Cooperative	Today's Power, Inc.	Newport, AR	2 GWh	May 2019	Dec 2025	Solar
Newport Solar Project	Newport Solar, LLC	Newport, AR	354 GWh	Sep 2023	May 2026	Solar
White River Medical Center	Entegrity Solar WRMC, LLC	Newport, AR	5 GWh	Sep 2023	Dec 2024	Solar
Newton Solar BESS LLC	Vistra Corp	Newton, IL	32 GWh	-	May 2026	Solar
Newton	Illinois Power Generating Co	Newton, IL	3 TWh	Oct 1977	May 2026	Subbituminous Coal : 99.8%
Little Quinnesec Falls Hydro Project	Eagle Creek Renewable Energy, LLC	Niagara, WI	61 GWh	Nov 1900	Dec 2025	Water
USS Flower Solar LLC CSG	Standard Solar	Nicollet, MN	2 GWh	Aug 2020	Dec 2025	Solar
Iris Solar, LLC (MN)	Geronimo Power	Nicollet, MN	2 GWh	Sep 2020	Dec 2025	Solar
Noblesville	Duke Energy Indiana, LLC	Noblesville, IN	2 TWh	Aug 1950	Dec 2025	Natural Gas
Heartland Community College	Heartland Community College	Normal, IL	5 GWh	May 2012	Dec 2025	Wind : 95.6% Solar : 4.4%
Big River Solar	Big River Solar, LLC	Norris City, IL	313 GWh	Jul 2022	May 2026	Solar
Prairie Wolf Solar LLC	Geronimo Power	North Ashmore, IL	376 GWh	Oct 2021	May 2026	Solar
USS Dubhe Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Dec 2025	Solar
USS Nillie Corn Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Dec 2025	Solar
Johnson II Community Solar	Johnson II CSG LLC	North Branch, MN	1 GWh	Aug 2018	Dec 2025	Solar
USS Norelius Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Dec 2018	Dec 2025	Solar
USS Solar Dawn CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Nov 2025	Solar
North Star Solar Project	North Star Solar PV LLC	North Branch, MN	175 GWh	Nov 2016	May 2026	Solar
Chisago Solar	Enel Green Power NA, Inc.	North Branch, MN	11 GWh	Nov 2016	Dec 2025	Solar
Cornillie	Terraform Arcadia	North Branch, MN	2 GWh	Jul 2018	Dec 2025	Solar
Sunrise Community Solar	Sunrise Community Solar	North Branch, MN	8 GWh	Nov 2016	Dec 2025	Solar
Coral Bells Solar, LLC	Geronimo Power	North Branch, MN	2 GWh	Nov 2020	Dec 2025	Solar
USS Kost Trail Solar CSG	Standard Solar	North Branch, MN	2 GWh	May 2019	Dec 2025	Solar
North Branch (MN)	North Branch Water & Light Comm	North Branch, MN	249 MWh	Sep 2003	Dec 2025	Distillate Fuel Oil
Palmer Community Solar LLC CSG	Palmer Community Solar LLC	North Branch, MN	2 GWh	Jul 2021	Dec 2025	Solar
Novel Swenson Solar LLC CSG	Novel Swenson Solar HQ LLC	North Branch, MN	922 MWh	Apr 2025	Dec 2025	Solar
Cornillie 2 Community (CSG)	CleanCapital Holdings	North Branch, MN	2 GWh	Nov 2020	Dec 2025	Solar
Cornillie Solar CSG	Madison Energy Holdings LLC	North Branch, MN	2 GWh	Nov 2021	Dec 2025	Solar
Novel Caroline Solar, LLC CSG	REA Investments, LLC	North Branch, MN	2 GWh	Apr 2023	Dec 2025	Solar
NLRED 2MW	Today's Power, Inc.	North Little Rock, AR	5 GWh	Nov 2024	Dec 2025	Solar
Two Pine Landfill Gas Recovery	WM Renewable Energy LLC	North Little Rock, AR	30 GWh	Sep 2006	Dec 2025	Landfill Gas
Murray	City of North Little Rock - (AR)	North Little Rock, AR	116 GWh	Sep 1988	Dec 2025	Water
POET Biorefining - North Manchester, LLC	POET Biorefining - North Manchester, LLC	North Manchester, IN	17 GWh	May 2017	Dec 2025	Natural Gas
Polaris Wind Park	DTE Electric Company	North Star Township, MI	455 GWh	Apr 2020	May 2026	Wind
Dundas Solar Holdings LLC CSG	Altus Power America Management, LLC	Northfield, MN	8 GWh	Feb 2018	May 2026	Solar
Northfield Holdco CSG	Northfield Holdco LLC	Northfield, MN	8 GWh	Nov 2017	Dec 2025	Solar
Carleton College	Carleton College	Northfield, MN	8 GWh	Aug 2004	Dec 2025	Wind : 99.5%
St. Olaf Wind Turbine	St. Olaf College	Northfield, MN	2 GWh	Aug 2006	Dec 2025	Wind
St. Olaf StandBy Generators	St. Olaf College	Northfield, MN	116 MWh	May 1999	Dec 2025	Distillate Fuel Oil
Northfield Solar CSG	Altus Power America Management, LLC	Northfield, MN	9 GWh	Jun 2020	Dec 2025	Solar
Northfield Community Solar	Northfield Community Solar	Northfield, MN	8 GWh	Nov 2016	Dec 2025	Solar
Hyacinth Solar, LLC	Geronimo Power	Northfield, MN	2 GWh	Sep 2020	Dec 2025	Solar
Chub Garden Solar	Chub Garden LLC	Northfield, MN	2 GWh	Feb 2020	Dec 2025	Solar
MN CSG 2019-77	MN CSG 2019-77 LLC	Northfield, MN	1 GWh	Apr 2025	Dec 2025	Solar
Lyman Garden	Excelsior Energy Capital	Northfield, MN	2 GWh	Oct 2020	Dec 2025	Solar
USS Hubers Solar LLC CSG	United States Solar Corporation	Northfield, MN	2 GWh	Dec 2020	Dec 2025	Solar
Union Garden	Excelsior Energy Capital	Northfield, MN	2 GWh	Feb 2021	Dec 2025	Solar
GRS Arbor Hills	Gas Recovery Systems Inc	Northville, MI	1 GWh	May 1996	Mar 2026	Landfill Gas
Badger Wind, LLC	Badger Wind , LLC	Northwest McIntosh, ND	374 GWh	-	May 2026	Wind
Norway (MI)	City of Norway - (MI)	Norway, MI	30 GWh	May 1905	Dec 2025	Water
Billerud Quinnesec Mill	Billerud Quinnesec Mill	Norway, MI	318 GWh	Sep 1985	Dec 2025	Black Liquor : 64.2% Wood/Wood Waste Solids : 32.7% Natural Gas : 3.1%
West Waconia Solar	Enel Green Power NA, Inc.	Norwood Young America, MN	16 GWh	Nov 2016	Dec 2025	Solar
BentonSun LLC	SunShare Management	Norwood Young America, MN	8 GWh	Nov 2016	Dec 2025	Solar
Carver Gladden CSG	Minnesota Solar CSG 8, LLC	Norwood Young America, MN	5 GWh	Mar 2018	Dec 2024	Solar
O'Fallon Renewable Energy Center	Union Electric Co - (MO)	O'Fallon, MO	1 GWh	Nov 2014	Aug 2025	Solar
IKEA Oak Creek Rooftop PV System	IKEA Property Inc	Oak Creek, WI	1 GWh	May 2018	Dec 2025	Solar
Elm Road Generating Station	Wisconsin Electric Power Co	Oak Creek, WI	8 TWh	Jan 2010	May 2026	Subbituminous Coal : 86.7% Bituminous Coal : 10.5% Natural Gas : 2.8%
South Oak Creek	Wisconsin Electric Power Co	Oak Creek, WI	2 TWh	Nov 1959	May 2026	Subbituminous Coal : 99.5%
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%
Allen S King	Northern States Power Co - Minnesota	Oak Park Heights, MN	723 GWh	Feb 1958	May 2026	Subbituminous Coal : 99.4%
Oak Ridge Solar	AES Clean Energy	Oak Ridge, LA	413 GWh	Nov 2023	May 2026	Solar
Oconto Falls Lower	Eagle Creek Renewable Energy, LLC	Oconto Falls, WI	6 GWh	Dec 1970	Dec 2025	Water
Stiles	Oconto Electric Cooperative	Oconto Falls, WI	5 GWh	Feb 1949	Dec 2025	Water
Oconto Falls Upper	Eagle Creek Renewable Energy, LLC	Oconto Falls, WI	12 GWh	Dec 1917	Dec 2025	Water
Richland (IA)	Interstate Power and Light Co	Odebolt, IA	494 GWh	Aug 2020	May 2026	Wind
Beaver Creek Wind	MidAmerican Energy Co	Ogden, IA	1 TWh	Nov 2017	May 2026	Wind
Ogden	City of Ogden - (IA)	Ogden, IA	73 MWh	Jun 1951	Dec 2025	Distillate Fuel Oil
Ogema	Greenbacker Renewable Energy Corporation	Ogema, WI	2 GWh	Feb 2024	Dec 2025	Solar
Olney Solar II CSG	Olney Solar II, LLC	Olney, IL	4 GWh	May 2021	Dec 2025	Solar
Onalaska Campus Landfill Biogas	Gundersen Lutheran Biogas I LLC	Onalaska, WI	4 GWh	Feb 2012	Dec 2025	Landfill Gas
Kleber	Tower Kleber Ltd Partnership	Onaway, MI	5 GWh	Dec 1924	Dec 2024	Water
Prairie Ronde Solar Farm	Lightsource Renewable Energy Asset Management, LLC	Opelousas, LA	257 GWh	Oct 2024	May 2026	Solar
Galesburg Solar Array	Onsite Partners, LLC	Oquawka, IL	3 GWh	Feb 2020	Dec 2024	Solar
Sabine	Entergy Texas Inc.	Orange, TX	4 TWh	Dec 1961	May 2026	Natural Gas

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