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
Coldwater River Solar	Coldwater River Solar, LLC	Coldwater, MI	82 GWh	-	Feb 2026	Solar
Prosperity Wind	Prosperity Wind, LLC	Deland, IL	833 GWh	-	Feb 2026	Wind
Degray	USCE -Vickburg District	Arkadelphia, AR	148 GWh	Jan 1972	Feb 2026	Water
Clinton Power Station	Constellation Nuclear	Clinton, IL	8 TWh	Oct 1987	Feb 2026	Nuclear
Baldwin Energy Complex	Dynegy Midwest Generation Inc	Baldwin, IL	6 TWh	Jun 1970	Feb 2026	Subbituminous Coal : 99.7%
Geneseo	City of Geneseo - (IL)	Geneseo, IL	8 GWh	Jun 1957	Feb 2026	Wind : 74.6% Solar : 20.6% Distillate Fuel Oil : 4.7%
City of Peru Plank Road Generating Station	City of Peru - (IL)	Peru, IL	19 GWh	Sep 1968	Feb 2026	Water : 97.8% Distillate Fuel Oil : 1.8%
Rantoul	Village of Rantoul - (IL)	Rantoul, IL	250 MWh	Dec 1950	Feb 2026	Distillate Fuel Oil
Dallman	City of Springfield - (IL)	Springfield, IL	849 GWh	May 1968	Feb 2026	Bituminous Coal : 99.5%
Sullivan (IL)	City of Sullivan - (IL)	Sullivan, IL	327 MWh	May 1946	Feb 2026	Distillate Fuel Oil
Marion	Southern Illinois Power Coop	Marion, IL	783 GWh	May 1963	Feb 2026	Bituminous Coal : 85.9% Natural Gas : 13.6% Distillate Fuel Oil : 0.5%
Harding Street	AES Indiana	Indianapolis, IN	4 TWh	May 1958	Feb 2026	Natural Gas
Eagle Valley (IN)	AES Indiana	Martinsville, IN	6 TWh	Nov 1951	Feb 2026	Natural Gas
CC Perry K	Citizens Thermal Energy	Indianapolis, IN	13 GWh	Dec 1924	Feb 2026	Natural Gas
AES Petersburg	AES Indiana	Petersburg, IN	5 TWh	May 1967	Feb 2026	Bituminous Coal : 99.8%
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%
Edwardsport	Duke Energy Indiana, LLC	Edwardsport, IN	4 TWh	May 2013	Feb 2026	Natural Gas : 51.7% Coal-Derived Synthesis Gas : 40.3% Bituminous Coal : 8.0%
F B Culley	Southern Indiana Gas & Elec Co	Newburgh, IN	982 GWh	Nov 1966	Feb 2026	Bituminous Coal : 97.4% Natural Gas : 2.6%
Iowa Hydro LLC	Renewable World Energies LLC	Maquoketa, IA	6 GWh	Dec 1923	Feb 2026	Water
Prairie Creek	Interstate Power and Light Co	Cedar Rapids, IA	90 GWh	Sep 1958	Feb 2026	Subbituminous Coal : 64.9% Natural Gas : 35.1%
Walter Scott Jr Energy Center	MidAmerican Energy Co	Council Bluffs, IA	6 TWh	Feb 1954	Feb 2026	Subbituminous Coal : 99.2% Distillate Fuel Oil : 0.7%
George Neal North	MidAmerican Energy Co	Sergeant Bluff, IA	2 TWh	Apr 1964	Feb 2026	Subbituminous Coal : 98.9% Natural Gas : 1.1%
Burlington (IA)	Interstate Power and Light Co	Burlington, IA	21 GWh	May 1968	Feb 2026	Natural Gas
Muscatine Plant #1	Board of Water Electric & Communications	Muscatine, IA	775 GWh	Mar 1958	Feb 2026	Subbituminous Coal : 99.7%
Louisiana 1	Entergy Louisiana LLC	Baton Rouge, LA	3 TWh	Sep 1951	Feb 2026	Natural Gas : 72.7% Other Gas : 27.3%
R S Nelson	Entergy Louisiana LLC	Westlake, LA	2 TWh	Jan 1959	Feb 2026	Subbituminous Coal : 99.7%
Coughlin Power Station	Cleco Power LLC	St Landry, LA	3 TWh	Mar 1961	Feb 2026	Natural Gas
Little Gypsy	Entergy Louisiana LLC	La Place, LA	873 GWh	Feb 1961	Feb 2026	Natural Gas
Nine Mile Point	Entergy Louisiana LLC	Westwego, LA	8 TWh	Oct 1955	Feb 2026	Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
Dan E Karn	Consumers Energy Co - (MI)	Essexville, MI	81 GWh	Oct 1959	Feb 2026	Natural Gas : 93.3% Residual Fuel Oil : 6.7%
J H Campbell	Consumers Energy Co - (MI)	West Olive, MI	7 TWh	Sep 1962	Feb 2026	Subbituminous Coal : 99.7%
Fermi	DTE Electric Company	Frenchtown Twp, MI	10 TWh	Mar 1966	Feb 2026	Nuclear
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%
St Clair	DTE Electric Company	East China Twp, MI	7 GWh	Jul 1953	Feb 2026	Distillate Fuel Oil : 53.6% Natural Gas : 46.4%
Wilmot	DTE Electric Company	Kingston Twp, MI	2 GWh	Nov 1968	Feb 2026	Distillate Fuel Oil
Wyandotte	Wyandotte Municipal Serv Comm	Wyandotte, MI	110 MWh	Dec 1947	Feb 2026	Distillate Fuel Oil
Clay Boswell	ALLETE, Inc.	Cohasset, MN	6 TWh	Jun 1958	Feb 2026	Subbituminous Coal : 99.8%
M L Hibbard	ALLETE, Inc.	Duluth, MN	98 GWh	May 1949	Feb 2026	Wood/Wood Waste Solids : 91.5% Subbituminous Coal : 6.4% Natural Gas : 2.1%
High Bridge	Northern States Power Co - Minnesota	St. Paul, MN	3 TWh	Apr 2008	Feb 2026	Natural Gas
Allen S King	Northern States Power Co - Minnesota	Oak Park Heights, MN	718 GWh	Feb 1958	Feb 2026	Subbituminous Coal : 99.4%
Monticello Nuclear Facility	Northern States Power Co - Minnesota	Monticello, MN	5 TWh	May 1971	Feb 2026	Nuclear
Prairie Island	Northern States Power Co - Minnesota	Welch, MN	9 TWh	Jan 1974	Feb 2026	Nuclear
Red Wing	Northern States Power Co - Minnesota	Red Wing, MN	128 GWh	Sep 1949	Feb 2026	Non-biogenic Municipal Solid Waste : 52.9% Biogenic Municipal Solid Waste : 43.3% Wood/Wood Waste Solids : 3.1% Natural Gas : 0.8%
Riverside (MN)	Northern States Power Co - Minnesota	Minneapolis, MN	50 GWh	Mar 1987	Feb 2026	Natural Gas
Wilmarth	Northern States Power Co - Minnesota	Mankato, MN	98 GWh	Aug 1948	Feb 2026	Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.2% Natural Gas : 1.9%
Elk River	Great River Energy	Elk River, MN	147 GWh	Dec 1950	Feb 2026	Natural Gas : 90.3% Distillate Fuel Oil : 9.7%
Moselle	Cooperative Energy	Moselle, MS	2 TWh	Jul 1970	Feb 2026	Natural Gas
Labadie	Union Electric Co - (MO)	Labadie, MO	17 TWh	May 1970	Feb 2026	Subbituminous Coal
Sioux	Union Electric Co - (MO)	West Alton, MO	4 TWh	Apr 1967	Feb 2026	Subbituminous Coal : 77.4% Bituminous Coal : 22.5%
R M Heskett	Montana-Dakota Utilities Co	Mandan, ND	55 GWh	Oct 1954	Feb 2026	Natural Gas
Milton R Young	Minnkota Power Coop, Inc	Center, ND	4 TWh	Sep 1970	Feb 2026	Lignite Coal : 99.8%
Lewis Creek	Entergy Texas Inc.	Willis, TX	2 TWh	Nov 1970	Feb 2026	Natural Gas
French Island	Northern States Power Co - Minnesota	La Cross, WI	67 GWh	Dec 1939	Feb 2026	Wood/Wood Waste Solids : 43.0% Non-biogenic Municipal Solid Waste : 25.7% Biogenic Municipal Solid Waste : 21.1% Distillate Fuel Oil : 9.9%
Port Washington Generating Station	Wisconsin Electric Power Co	Port Washington, WI	7 TWh	Jun 2005	Feb 2026	Natural Gas
South Oak Creek	Wisconsin Electric Power Co	Oak Creek, WI	2 TWh	Nov 1959	Feb 2026	Subbituminous Coal : 99.5%
Valley (WI)	Wisconsin Electric Power Co	Milwaukee, WI	365 GWh	May 1968	Feb 2026	Natural Gas
Point Beach Nuclear Plant	NextEra Energy Point Beach LLC	Two Rivers, WI	10 TWh	May 1969	Feb 2026	Nuclear
Edgewater	Wisconsin Power & Light Co	Sheboygan, WI	2 TWh	Jun 1951	Feb 2026	Subbituminous Coal : 99.9%
Pulliam	Wisconsin Public Service Corp	Green Bay, WI	111 GWh	Aug 1949	Feb 2026	Natural Gas
Weston	Wisconsin Public Service Corp	Rothschild, WI	5 TWh	Nov 1954	Feb 2026	Subbituminous Coal : 99.4% Natural Gas : 0.6%
New Badger	City of Kaukauna	Kaukauna, WI	45 GWh	Dec 2013	Feb 2026	Water
Manitowoc	Manitowoc Public Utilities	Manitowoc, WI	179 GWh	May 1955	Feb 2026	Wood/Wood Waste Solids : 91.2% Petroleum Coke : 4.9% Bituminous Coal : 3.6%
Waterford 3	Entergy Louisiana LLC	Killona, LA	9 TWh	Aug 1985	Feb 2026	Nuclear
John P Madgett	Dairyland Power Coop	Alma, WI	1 TWh	Oct 1979	Feb 2026	Subbituminous Coal : 99.5%
White Bluff	Entergy Arkansas LLC	Redfield, AR	3 TWh	Jul 1980	Feb 2026	Subbituminous Coal : 99.5%
Newton	Illinois Power Generating Co	Newton, IL	4 TWh	Oct 1977	Feb 2026	Subbituminous Coal : 99.9%
Coal Creek	Rainbow Energy Center	Underwood, ND	8 TWh	May 1979	Feb 2026	Refined Coal : 99.9%
Belle River	DTE Electric Company	China Twp, MI	5 TWh	Oct 1981	Feb 2026	Subbituminous Coal : 90.5% Natural Gas : 9.0%
Greenwood (MI)	DTE Electric Company	Avoca, MI	1 TWh	Jun 1979	Feb 2026	Natural Gas
Big Cajun 2	Louisiana Generating LLC	New Roads, LA	2 TWh	Jun 1981	Feb 2026	Subbituminous Coal : 70.8% Natural Gas : 29.2%
R D Morrow	Cooperative Energy	Purvis, MS	3 TWh	Mar 1978	Feb 2026	Natural Gas
Grand Gulf	System Energy Resources, Inc	Port Gibson, MS	11 TWh	Jun 1985	Feb 2026	Nuclear
R M Schahfer	Northern Indiana Pub Serv Co	Wheatfield, IN	1 TWh	Nov 1976	Feb 2026	Bituminous Coal : 94.3% Natural Gas : 5.7%
Lewis & Clark	Montana-Dakota Utilities Co	Richland, MT	12 GWh	Sep 1958	Feb 2026	Natural Gas
Sherburne County	Northern States Power Co - Minnesota	Becker, MN	7 TWh	Mar 1976	Feb 2026	Subbituminous Coal : 99.8%
Big Stone	Otter Tail Power Co	Big Stone City, SD	2 TWh	Apr 1975	Feb 2026	Subbituminous Coal : 99.8%
Gibson	Duke Energy Indiana, LLC	Owensville, IN	10 TWh	Mar 1975	Feb 2026	Bituminous Coal : 99.6%
A B Brown	Southern Indiana Gas & Elec Co	Mount Vernon, IN	653 GWh	Feb 1979	Feb 2026	Natural Gas
Callaway	Union Electric Co - (MO)	Fulton, MO	7 TWh	Nov 1984	Feb 2026	Nuclear
Brame Energy Center	Cleco Power LLC	Lena, LA	3 TWh	May 1975	Feb 2026	Subbituminous Coal : 48.4% Natural Gas : 34.8% Petroleum Coke : 11.8% Bituminous Coal : 5.0%
Merom	Hallador Power Company, LLC	Sullivan, IN	4 TWh	Jan 1982	Feb 2026	Bituminous Coal : 99.6%
Ottumwa	Interstate Power and Light Co	Ottumwa, IA	3 TWh	Apr 1981	Feb 2026	Subbituminous Coal : 99.7%
River Bend	Entergy Louisiana LLC	St. Francisville, LA	7 TWh	May 1986	Feb 2026	Nuclear
R D Green	Big Rivers Electric Corp	Robards, KY	701 GWh	Nov 1979	Feb 2026	Natural Gas
Independence Steam Electric Station	Entergy Arkansas LLC	Newark, AR	7 TWh	Dec 1982	Feb 2026	Subbituminous Coal : 99.8%
Louisa	MidAmerican Energy Co	Muscatine, IA	5 TWh	Sep 1983	Feb 2026	Subbituminous Coal : 99.4% Natural Gas : 0.6%
Warrick	AGC Division of APGI Inc	Newburgh, IN	3 TWh	Mar 1960	Feb 2026	Bituminous Coal : 98.3% Natural Gas : 1.7%
D B Wilson	Big Rivers Electric Corp	Centertown, KY	2 TWh	Aug 1984	Feb 2026	Bituminous Coal : 99.3% Distillate Fuel Oil : 0.7%
George Neal South	MidAmerican Energy Co	Salix, IA	2 TWh	Jun 1979	Feb 2026	Subbituminous Coal : 99.1% Distillate Fuel Oil : 0.9%
State Farm	State Farm Insurance	Bloomington, IL	32 MWh	Sep 1996	Feb 2026	Distillate Fuel Oil
Columbia (WI)	Wisconsin Power & Light Co	Pardeville, WI	6 TWh	Apr 1975	Feb 2026	Subbituminous Coal : 99.9%
Emery Station	Interstate Power and Light Co	Clear Lake, IA	3 TWh	Apr 2004	Feb 2026	Natural Gas
Arkansas Nuclear One	Entergy Arkansas LLC	Russellville, AR	15 TWh	Nov 1974	Feb 2026	Nuclear
Coyote	Otter Tail Power Co	Beulah, ND	2 TWh	Apr 1981	Feb 2026	Lignite Coal : 99.8%
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%
CF Industries Yazoo City Complex	CF Industries Nitrogen LLC	Yazoo City, MS	126 GWh	Jun 1984	Feb 2026	Natural Gas
Mosaic Phosphates Uncle Sam	Mosaic Phosphates Co.	Uncle Sam, LA	89 GWh	Dec 1967	Feb 2026	Waste Heat
Escanaba Mill	Billerud Escanaba LLC	Escanaba, MI	462 GWh	Dec 1968	Feb 2026	Black Liquor : 45.7% Natural Gas : 31.3% Wood/Wood Waste Solids : 22.3% Residual Fuel Oil : 0.7%
T B Simon Power Plant	Michigan State University	East Lansing, MI	252 GWh	Nov 1965	Feb 2026	Natural Gas
Consumer Operations LLC	Georgia-Pacific Consumer Oper. Green Bay LLC	Green Bay, WI	228 GWh	Dec 1953	Feb 2026	Natural Gas

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