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	Jun 2026
Annual Generation	669.3 TWh
Power Plants	2,831
Utilities	1,296
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 \| 27% Wind \| 14.9% Nuclear \| 13.8% Solar \| 5.3% 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
Sigel Wind Park	DTE Electric Company	Harbor Beach, MI	247 GWh	Nov 2012	Mar 2026	Wind
Minden Wind Park	DTE Electric Company	Minden City, MI	110 GWh	Nov 2012	Mar 2026	Wind
McKinley Wind Park	DTE Electric Company	Pigeon, MI	51 GWh	Nov 2012	Mar 2026	Wind
Eclipse Wind Farm	MidAmerican Energy Co	Adair, IA	808 GWh	Aug 2012	Mar 2026	Wind
Lake Charles Polymers	Equistar Chemicals LP	Westlake, LA	193 GWh	Aug 2011	Mar 2026	Natural Gas
SIUC	Southern Illinois University Carbondale	Carbondale, IL	9 GWh	May 1998	Mar 2026	Bituminous Coal
ADA Carbon Solutions Red River	ADA Carbon Solutions (Red River), LLC	Coushatta, LA	106 GWh	Jan 2011	Mar 2026	Waste Heat
MSC Sebewaing	Michigan Sugar Company	Sebewaing, MI	509 MWh	Sep 1979	Mar 2026	Bituminous Coal : 67.9% Natural Gas : 32.1%
Roquette America	Roquette America	Keokuk, IA	216 GWh	Jun 2004	Mar 2026	Natural Gas
Little Gypsy	Entergy Louisiana LLC	La Place, LA	951 GWh	Feb 1961	Mar 2026	Natural Gas
Nine Mile Point	Entergy Louisiana LLC	Westwego, LA	8 TWh	Oct 1955	Mar 2026	Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
Coughlin Power Station	Cleco Power LLC	St Landry, LA	3 TWh	Mar 1961	Mar 2026	Natural Gas
Wilmarth	Northern States Power Co - Minnesota	Mankato, MN	94 GWh	Aug 1948	Mar 2026	Non-biogenic Municipal Solid Waste : 53.8% Biogenic Municipal Solid Waste : 44.1% Natural Gas : 2.1%
R S Nelson	Entergy Louisiana LLC	Westlake, LA	2 TWh	Jan 1959	Mar 2026	Subbituminous Coal : 99.7%
California Ridge Wind Energy LLC	SunEdison LLC	Fithian, IL	650 GWh	Nov 2012	Mar 2026	Wind
Louisiana 1	Entergy Louisiana LLC	Baton Rouge, LA	3 TWh	Sep 1951	Mar 2026	Natural Gas : 72.8% Other Gas : 27.2%
Degray	USCE -Vickburg District	Arkadelphia, AR	144 GWh	Jan 1972	Mar 2026	Water
New Frontier Wind	Meadowlark Wind I LLC	Ruso, ND	366 GWh	Nov 2018	Mar 2026	Wind
Red Wing	Northern States Power Co - Minnesota	Red Wing, MN	129 GWh	Sep 1949	Mar 2026	Non-biogenic Municipal Solid Waste : 52.9% Biogenic Municipal Solid Waste : 43.3% Wood/Wood Waste Solids : 3.0% Natural Gas : 0.8%
Prairie Island	Northern States Power Co - Minnesota	Welch, MN	9 TWh	Jan 1974	Mar 2026	Nuclear
Monticello Nuclear Facility	Northern States Power Co - Minnesota	Monticello, MN	4 TWh	May 1971	Mar 2026	Nuclear
Allen S King	Northern States Power Co - Minnesota	Oak Park Heights, MN	721 GWh	Feb 1958	Mar 2026	Subbituminous Coal : 99.4%
Cardinal Point Wind	Cardinal Point LLC	Sciota, IL	514 GWh	Feb 2020	Mar 2026	Wind
Clinton Power Station	Constellation Nuclear	Clinton, IL	8 TWh	Oct 1987	Mar 2026	Nuclear
Marshall Solar Energy Project	Marshall Solar Energy Project	Marshall, MN	96 GWh	Dec 2016	Mar 2026	Solar
Baldwin Energy Complex	Dynegy Midwest Generation Inc	Baldwin, IL	6 TWh	Jun 1970	Mar 2026	Subbituminous Coal : 99.7%
North Star Solar Project	North Star Solar PV LLC	North Branch, MN	180 GWh	Nov 2016	Mar 2026	Solar
Highland Wind Project (IA)	MidAmerican Energy Co	Primghar, IA	1 TWh	May 2015	Mar 2026	Wind
Sugar Creek Wind One LLC	Sugar Creek Wind One LLC	TBD, IL	554 GWh	Oct 2020	Mar 2026	Wind
Lincoln Land Wind	Lincoln Land Wind, LLC	TBD, IL	988 GWh	Oct 2021	Mar 2026	Wind
Muscatine Plant #1	Board of Water Electric & Communications	Muscatine, IA	780 GWh	Mar 1958	Mar 2026	Subbituminous Coal : 99.7%
Brookfield	DTE Electric Company	Pigeon, MI	247 GWh	Jan 2014	Mar 2026	Wind
Dan E Karn	Consumers Energy Co - (MI)	Essexville, MI	80 GWh	Oct 1959	Mar 2026	Natural Gas : 93.3% Residual Fuel Oil : 6.7%
High Bridge	Northern States Power Co - Minnesota	St. Paul, MN	3 TWh	Apr 2008	Mar 2026	Natural Gas
Black Oak Wind Farm	Black Oak Wind, LLC	Sauk Centre, MN	301 GWh	Nov 2016	Mar 2026	Wind
Apple Blossom Wind Farm	Apple Blossom Wind, LLC	Pigeon, MI	247 GWh	Oct 2017	Mar 2026	Wind
J H Campbell	Consumers Energy Co - (MI)	West Olive, MI	6 TWh	Sep 1962	Mar 2026	Subbituminous Coal : 99.7%
Geneseo	City of Geneseo - (IL)	Geneseo, IL	8 GWh	Jun 1957	Mar 2026	Wind : 74.3% Solar : 20.9% Distillate Fuel Oil : 4.8%
Courtenay Wind Farm	Northern States Power Co - Minnesota	Courtenay, ND	235 GWh	Nov 2016	Mar 2026	Wind
RC Thomas Hydroelectric Project	East Texas Electric Coop, Inc	Livingston, TX	114 GWh	Jun 2020	Mar 2026	Water
City of Peru Plank Road Generating Station	City of Peru - (IL)	Peru, IL	20 GWh	Sep 1968	Mar 2026	Water : 97.9% Distillate Fuel Oil : 1.8%
St. Paul Intl Airport Red & Blue Parking	Metropolitan Airports Commission	St. Paul, MN	3 GWh	Nov 2015	Mar 2026	Solar
SABIC Innovative Plastics Mt. Vernon	SABIC IP Mt. Vernon, LLC	Mount Vernon, IN	580 GWh	May 1996	Mar 2026	Natural Gas
PCA, Filer City Mill	PCA, Filer City Mill	Filer City, MI	89 GWh	Dec 1949	Mar 2026	Natural Gas
Rantoul	Village of Rantoul - (IL)	Rantoul, IL	250 MWh	Dec 1950	Mar 2026	Distillate Fuel Oil
M L Hibbard	ALLETE, Inc.	Duluth, MN	100 GWh	May 1949	Mar 2026	Wood/Wood Waste Solids : 91.7% Subbituminous Coal : 6.3% Natural Gas : 2.0%
Dallman	City of Springfield - (IL)	Springfield, IL	845 GWh	May 1968	Mar 2026	Bituminous Coal : 99.5%
Fermi	DTE Electric Company	Frenchtown Twp, MI	10 TWh	Mar 1966	Mar 2026	Nuclear
Clinton LFGTE	Wabash Valley Power Assn, Inc	Clinton, IL	17 GWh	Jan 2006	Mar 2026	Landfill Gas
Monroe (MI)	DTE Electric Company	Monroe, MI	16 TWh	Oct 1969	Mar 2026	Subbituminous Coal : 75.0% Bituminous Coal : 16.0% Petroleum Coke : 8.9%
Echo Wind Park	DTE Electric Company	Elkton, MI	564 GWh	Dec 2013	Mar 2026	Wind
Tuscola Wind II LLC	Tuscola Wind II LLC	Reese, MI	292 GWh	Oct 2013	Mar 2026	Wind
Clay Boswell	ALLETE, Inc.	Cohasset, MN	6 TWh	Jun 1958	Mar 2026	Subbituminous Coal : 99.8%
Sullivan (IL)	City of Sullivan - (IL)	Sullivan, IL	462 MWh	May 1946	Mar 2026	Distillate Fuel Oil
St Clair	DTE Electric Company	East China Twp, MI	7 GWh	Jul 1953	Mar 2026	Distillate Fuel Oil : 53.0% Natural Gas : 47.0%
Otter Creek Ethanol Poet - Ashton	Otter Creek Ethanol LLC - Poet Ashton	Ashton, IA	45 GWh	Feb 2004	Mar 2026	Natural Gas
Wilmot	DTE Electric Company	Kingston Twp, MI	2 GWh	Nov 1968	Mar 2026	Distillate Fuel Oil
Pheasant Run Wind LLC	Pheasant Run Wind LLC	Pigeon, MI	246 GWh	Nov 2013	Mar 2026	Wind
Indy Solar II, LLC	Onward Energy	Indianapolis, IN	15 GWh	Nov 2013	Mar 2026	Solar
Indy Solar III, LLC	Onward Energy	Indianapolis, IN	13 GWh	Nov 2013	Mar 2026	Solar
Indy Solar I, LLC	Onward Energy	Indianapolis, IN	15 GWh	Nov 2013	Mar 2026	Solar
Marion	Southern Illinois Power Coop	Marion, IL	802 GWh	May 1963	Mar 2026	Bituminous Coal : 86.2% Natural Gas : 13.3%
Zimmerman Energy	Landfill Energy Systems	Argos, IN	41 GWh	Oct 2014	Mar 2026	Landfill Gas
Burlington (IA)	Interstate Power and Light Co	Burlington, IA	22 GWh	May 1968	Mar 2026	Natural Gas
George Neal North	MidAmerican Energy Co	Sergeant Bluff, IA	2 TWh	Apr 1964	Mar 2026	Subbituminous Coal : 98.9% Natural Gas : 1.1%
Walter Scott Jr Energy Center	MidAmerican Energy Co	Council Bluffs, IA	6 TWh	Feb 1954	Mar 2026	Subbituminous Coal : 99.1% Distillate Fuel Oil : 0.7%
Red Rock Hydro Plant	Western Minnesota Mun Pwr Agny	Pella, IA	207 GWh	Apr 2021	Mar 2026	Water
Prairie Creek	Interstate Power and Light Co	Cedar Rapids, IA	92 GWh	Sep 1958	Mar 2026	Subbituminous Coal : 64.5% Natural Gas : 35.5%
LSU Cogen	LSU and A&M College	Baton Rouge, LA	73 GWh	Nov 2004	Mar 2026	Natural Gas
POET Biorefining Lake Crystal	POET Biorefining Lake Crystal	Lake Crystal, MN	6 GWh	Mar 2005	Mar 2026	Natural Gas : 80.4% Distillate Fuel Oil : 19.6%
Harding Street	AES Indiana	Indianapolis, IN	4 TWh	May 1958	Mar 2026	Natural Gas
Marshalltown Generating Station	Interstate Power and Light Co	Marshalltown, IA	3 TWh	Mar 2017	Mar 2026	Natural Gas : 99.9%
Waxdale	S.C. Johnson & Son, Inc.	Sturtevant, WI	37 GWh	Nov 2003	Mar 2026	Natural Gas : 43.1% Landfill Gas : 32.6% Wind : 15.8% Solar : 8.5%
Iowa Hydro LLC	Renewable World Energies LLC	Maquoketa, IA	6 GWh	Dec 1923	Mar 2026	Water
Eagle Valley (IN)	AES Indiana	Martinsville, IN	6 TWh	Nov 1951	Mar 2026	Natural Gas
CC Perry K	Citizens Thermal Energy	Indianapolis, IN	14 GWh	Dec 1924	Mar 2026	Natural Gas
AES Petersburg	AES Indiana	Petersburg, IN	5 TWh	May 1967	Mar 2026	Bituminous Coal : 99.8%
Michigan City	Northern Indiana Pub Serv Co	Michigan City, IN	2 TWh	Apr 1974	Mar 2026	Subbituminous Coal : 78.1% Bituminous Coal : 20.5% Natural Gas : 1.4%
NCAH Central Utility Plant	National Centers for Animal Health	Ames, IA	983 MWh	May 1996	Mar 2026	Natural Gas : 91.0% Distillate Fuel Oil : 9.0%
Wyandotte	Wyandotte Municipal Serv Comm	Wyandotte, MI	109 MWh	Dec 1947	Mar 2026	Distillate Fuel Oil
F B Culley	Southern Indiana Gas & Elec Co	Newburgh, IN	1 TWh	Nov 1966	Mar 2026	Bituminous Coal : 97.6% Natural Gas : 2.4%
Edwardsport	Duke Energy Indiana, LLC	Edwardsport, IN	4 TWh	May 2013	Mar 2026	Natural Gas : 46.2% Coal-Derived Synthesis Gas : 44.9% Bituminous Coal : 8.9%
Cayuga	Duke Energy Indiana, LLC	Cayuga, IN	4 TWh	Sep 1970	Mar 2026	Bituminous Coal : 99.3%
Tuscola Bay Wind	Tuscola Bay Wind LLC	Reese, MI	356 GWh	Nov 2012	Mar 2026	Wind
Western Michigan Solar Gardens	Consumers Energy Co - (MI)	Kalamazoo, MI	2 GWh	Jul 2016	Mar 2026	Solar
Crossett Solar	Cubico USA, LLC	Crossett, AR	209 GWh	Aug 2024	Mar 2026	Solar
Sherco Solar I	Northern States Power Co - Minnesota	Clear Lake, MN	404 GWh	Sep 2024	Mar 2026	Solar
Dunns Bridge II Solar	Dunns Bridge II Solar and Storage Generation LLC	San Pierre, IN	809 GWh	-	Mar 2026	Solar
Heirloom Solar	Heirloom Solar (Ratts 1 Phase 2 Solar, LLC)	Petersburg, IN	39 GWh	-	Mar 2026	Solar
RATTS 1	Ratts 1 Solar LLC	Petersburg, IN	108 GWh	-	Mar 2026	Solar
Hardy Hills Solar Energy LLC	Hardy Hills Solar LLC	Frankfort, IN	359 GWh	Feb 2024	Mar 2026	Solar
Hickory Solar	Hickory Solar LLC	Jerseyville, IL	249 GWh	Aug 2024	Mar 2026	Solar
Polaris Solar Park	DTE Electric Company	Ashley, MI	87 GWh	-	Mar 2026	Solar
Sebree Solar, LLC - Hybrid	Sebree Solar, LLC	Robards, KY	233 GWh	-	Mar 2026	Solar
Twin Lakes Solar LLC	Twin Lakes Solar LLC	Monticello, IN	328 GWh	Nov 2024	Mar 2026	Solar
White Tail Solar	White Tail Solar, LLC	Milan, MI	48 GWh	-	Mar 2026	Solar
Wever Solar (150MW)	Interstate Power and Light Co	Wever, IA	263 GWh	Oct 2024	Mar 2026	Solar
Pleasant Creek Unit 2	Interstate Power and Light Co	Palo, IA	268 GWh	Nov 2024	Mar 2026	Solar
Creston Solar (50 MW)	Interstate Power and Light Co	Creston, IA	97 GWh	Sep 2024	Mar 2026	Solar
Walnut Bend Solar Station PV	Walnut Bend Solar Station	Moro, AR	206 GWh	Aug 2024	Mar 2026	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	522.6 GWh	4
#27	Associated Electric Cooperative, Inc.	23.8 TWh	47
#13	Duke Energy Carolinas	112.2 TWh	565
#51	Duke Energy Progress West	4.6 TWh	10
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.1 TWh	25
#1	PJM Interconnection, LLC	873.9 TWh	2,465
#6	Southern Company Services, Inc. - Trans	252.5 TWh	417
#5	Southwest Power Pool	304.8 TWh	835
#53	Southwestern Power Administration	4.3 TWh	34
#9	Tennessee Valley Authority	163.7 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	873.9 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	669.3 TWh	2,831
#3	Electric Reliability Council of Texas, Inc.	489.5 TWh	1,313
#5	Southwest Power Pool	304.8 TWh	835
#6	Southern Company Services, Inc. - Trans	252.5 TWh	417
#7	California Independent System Operator	173.0 TWh	2,075
#9	Tennessee Valley Authority	163.7 TWh	204
#10	Florida Power & Light Co.	151.0 TWh	187
#12	New York Independent System Operator	134.9 TWh	1,211
#13	Duke Energy Carolinas	112.2 TWh	565