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	678.0 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% 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
Point Beach Nuclear Plant	NextEra Energy Point Beach LLC	Two Rivers, WI	10 TWh	May 1969	Jul 2026	Nuclear
Ottumwa	Interstate Power and Light Co	Ottumwa, IA	4 TWh	Apr 1981	Jul 2026	Subbituminous Coal : 99.6%
High Bridge	Northern States Power Co - Minnesota	St. Paul, MN	3 TWh	Apr 2008	Jul 2026	Natural Gas
Degray	USCE -Vickburg District	Arkadelphia, AR	75 GWh	Jan 1972	Jul 2026	Water
D B Wilson	Big Rivers Electric Corp	Centertown, KY	1 TWh	Aug 1984	Jul 2026	Bituminous Coal : 98.9% Distillate Fuel Oil : 1.1%
Dan E Karn	Consumers Energy Co - (MI)	Essexville, MI	73 GWh	Oct 1959	Jul 2026	Natural Gas : 92.1% Residual Fuel Oil : 7.9%
Clinton Power Station	Constellation Nuclear	Clinton, IL	8 TWh	Oct 1987	Jul 2026	Nuclear
Belle River	DTE Electric Company	China Twp, MI	4 TWh	Oct 1981	Jul 2026	Subbituminous Coal : 67.9% Natural Gas : 31.7%
Baldwin Energy Complex	Dynegy Midwest Generation Inc	Baldwin, IL	6 TWh	Jun 1970	Jul 2026	Subbituminous Coal : 99.8%
New Badger	City of Kaukauna (WI)	Kaukauna, WI	42 GWh	Dec 2013	Jul 2026	Water
St Clair	DTE Electric Company	East China Twp, MI	7 GWh	Jul 1953	Jul 2026	Distillate Fuel Oil : 51.3% Natural Gas : 48.7%
River Bend	Entergy Louisiana LLC	St. Francisville, LA	8 TWh	May 1986	Jul 2026	Nuclear
T B Simon Power Plant	Michigan State University	East Lansing, MI	274 GWh	Nov 1965	Jul 2026	Natural Gas
Coyote	Otter Tail Power Co	Beulah, ND	2 TWh	Apr 1981	Jul 2026	Lignite Coal : 99.8%
Warrick	AGC Division of APGI Inc	Newburgh, IN	3 TWh	Mar 1960	Jul 2026	Bituminous Coal : 97.9% Natural Gas : 2.1%
Elk River	Great River Energy	Elk River, MN	145 GWh	Dec 1950	Jul 2026	Natural Gas : 90.1% Distillate Fuel Oil : 9.9%
Milton R Young	Minnkota Power Coop, Inc	Center, ND	4 TWh	Sep 1970	Jul 2026	Lignite Coal : 99.8%
South Oak Creek	Wisconsin Electric Power Co	Oak Creek, WI	2 TWh	Nov 1959	Jul 2026	Subbituminous Coal : 99.5%
Geneseo	City of Geneseo - (IL)	Geneseo, IL	8 GWh	Jun 1957	Jul 2026	Wind : 71.7% Solar : 21.5% Distillate Fuel Oil : 6.8%
Greenwood (MI)	DTE Electric Company	Avoca, MI	2 TWh	Jun 1979	Jul 2026	Natural Gas
Manitowoc	Manitowoc Public Utilities	Manitowoc, WI	185 GWh	May 1955	Jul 2026	Wood/Wood Waste Solids : 80.7% Petroleum Coke : 9.9% Bituminous Coal : 9.1%
Wilmarth	Northern States Power Co - Minnesota	Mankato, MN	104 GWh	Aug 1948	Jul 2026	Non-biogenic Municipal Solid Waste : 53.9% Biogenic Municipal Solid Waste : 44.1% Natural Gas : 2.1%
City of Peru Plank Road Generating Station	City of Peru - (IL)	Peru, IL	19 GWh	Sep 1968	Jul 2026	Water : 96.9% Distillate Fuel Oil : 2.3% Jet Fuel : 0.7%
Independence Steam Electric Station	Entergy Arkansas LLC	Newark, AR	7 TWh	Dec 1982	Jul 2026	Subbituminous Coal : 99.9%
Rantoul	Village of Rantoul - (IL)	Rantoul, IL	313 MWh	Dec 1950	Jul 2026	Distillate Fuel Oil
Consumer Operations LLC	Georgia-Pacific Consumer Oper. Green Bay LLC	Green Bay, WI	242 GWh	Dec 1953	Jul 2026	Natural Gas
Dallman	City of Springfield - (IL)	Springfield, IL	815 GWh	May 1968	Jul 2026	Bituminous Coal : 99.4% Natural Gas : 0.6%
Arkansas Nuclear One	Entergy Arkansas LLC	Russellville, AR	14 TWh	Nov 1974	Jul 2026	Nuclear
Sullivan (IL)	City of Sullivan - (IL)	Sullivan, IL	574 MWh	May 1946	Jul 2026	Distillate Fuel Oil
Bowling Green Renewable Energy Center	Union Electric Co - (MO)	Bowling Green, MO	36 GWh	Mar 2025	Jul 2026	Solar
Marion	Southern Illinois Power Coop	Marion, IL	796 GWh	May 1963	Jul 2026	Bituminous Coal : 86.3% Natural Gas : 13.1% Distillate Fuel Oil : 0.6%
Harding Street	AES Indiana	Indianapolis, IN	4 TWh	May 1958	Jul 2026	Natural Gas
Eagle Valley (IN)	AES Indiana	Martinsville, IN	5 TWh	Nov 1951	Jul 2026	Natural Gas
CC Perry K	Citizens Thermal Energy	Indianapolis, IN	15 GWh	Dec 1924	Jul 2026	Natural Gas
AES Petersburg	AES Indiana	Petersburg, IN	4 TWh	May 1967	Jul 2026	Bituminous Coal : 93.2% Natural Gas : 6.6%
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%
Wyandotte	Wyandotte Municipal Serv Comm - (MI)	Wyandotte, MI	116 MWh	Dec 1947	Jul 2026	Distillate Fuel Oil
Little Gypsy	Entergy Louisiana LLC	La Place, LA	1 TWh	Feb 1961	Jul 2026	Natural Gas
Cayuga	Duke Energy Indiana, LLC	Cayuga, IN	4 TWh	Sep 1970	Jul 2026	Bituminous Coal : 99.4%
Edwardsport	Duke Energy Indiana, LLC	Edwardsport, IN	4 TWh	May 2013	Jul 2026	Coal-Derived Synthesis Gas : 48.9% Natural Gas : 41.1% Bituminous Coal : 9.9%
Edgewater	Wisconsin Power & Light Co	Sheboygan, WI	2 TWh	Jun 1951	Jul 2026	Subbituminous Coal : 99.9%
Lewis & Clark	Montana-Dakota Utilities Co	Richland, MT	12 GWh	Sep 1958	Jul 2026	Natural Gas
F B Culley	Southern Indiana Gas & Elec Co	Newburgh, IN	1 TWh	Nov 1966	Jul 2026	Bituminous Coal : 98.3% Natural Gas : 1.7%
Nine Mile Point	Entergy Louisiana LLC	Westwego, LA	8 TWh	Oct 1955	Jul 2026	Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
Iowa Hydro LLC	Zero6 Energy Hydro	Maquoketa, IA	6 GWh	Dec 1923	Jul 2026	Water
Coal Creek	Rainbow Energy Center	Underwood, ND	8 TWh	May 1979	Jul 2026	Refined Coal : 99.9%
Prairie Creek	Interstate Power and Light Co	Cedar Rapids, IA	52 GWh	Sep 1958	Jul 2026	Subbituminous Coal : 59.8% Natural Gas : 40.2%
State Farm	State Farm Insurance	Bloomington, IL	30 MWh	Sep 1996	Jul 2026	Distillate Fuel Oil
Walter Scott Jr Energy Center	MidAmerican Energy Co	Council Bluffs, IA	7 TWh	Feb 1954	Jul 2026	Subbituminous Coal : 99.3% Distillate Fuel Oil : 0.6%
George Neal South	MidAmerican Energy Co	Salix, IA	2 TWh	Jun 1979	Jul 2026	Subbituminous Coal : 99.0% Distillate Fuel Oil : 1.0%
George Neal North	MidAmerican Energy Co	Sergeant Bluff, IA	2 TWh	Apr 1964	Jul 2026	Subbituminous Coal : 98.2% Natural Gas : 1.8%
Louisa	MidAmerican Energy Co	Muscatine, IA	4 TWh	Sep 1983	Jul 2026	Subbituminous Coal : 99.4% Natural Gas : 0.6%
Burlington (IA)	Interstate Power and Light Co	Burlington, IA	35 GWh	May 1968	Jul 2026	Natural Gas
R D Green	Big Rivers Electric Corp	Robards, KY	491 GWh	Nov 1979	Jul 2026	Natural Gas
CF Industries Yazoo City Complex	CF Industries Nitrogen LLC	Yazoo City, MS	88 GWh	Jun 1984	Jul 2026	Natural Gas
Covanta Hennepin Energy	Covanta Energy Co	Minneapolis, MN	214 GWh	Sep 1989	Jul 2026	Non-biogenic Municipal Solid Waste : 54.5% Biogenic Municipal Solid Waste : 44.6% Natural Gas : 0.8%
Emery Station	Interstate Power and Light Co	Clear Lake, IA	2 TWh	Apr 2004	Jul 2026	Natural Gas
Escanaba Mill	Billerud Escanaba LLC	Escanaba, MI	455 GWh	Dec 1968	Jul 2026	Black Liquor : 46.5% Natural Gas : 31.7% Wood/Wood Waste Solids : 21.0% Residual Fuel Oil : 0.7%
Expander Turbine	Cleveland Cliffs	East Chicago, IN	86 GWh	Apr 1981	Jul 2026	Blast Furnace Gas
Anheuser-Busch St Louis	Anheuser-Busch Inc	St. Louis, MO	38 GWh	Dec 1938	Jul 2026	Natural Gas : 93.0% Other Biomass Gas : 7.0%
Mosaic Phosphates Uncle Sam	Mosaic Phosphates Co.	Uncle Sam, LA	99 GWh	Dec 1967	Jul 2026	Waste Heat : 91.7% Natural Gas : 8.3%
Columbia (WI)	Wisconsin Power & Light Co	Pardeville, WI	5 TWh	Apr 1975	Jul 2026	Subbituminous Coal : 99.9%
Brame Energy Center	Cleco Power LLC	Lena, LA	4 TWh	May 1975	Jul 2026	Subbituminous Coal : 49.2% Natural Gas : 35.7% Petroleum Coke : 10.7% Bituminous Coal : 4.4%
Wilmot	DTE Electric Company	Kingston Twp, MI	2 GWh	Nov 1968	Jul 2026	Distillate Fuel Oil
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%
M L Hibbard	ALLETE, Inc.	Duluth, MN	81 GWh	May 1949	Jul 2026	Wood/Wood Waste Solids : 91.5% Subbituminous Coal : 6.1% Natural Gas : 2.3%
Monticello Nuclear Facility	Northern States Power Co - Minnesota	Monticello, MN	5 TWh	May 1971	Jul 2026	Nuclear
Allen S King	Northern States Power Co - Minnesota	Oak Park Heights, MN	861 GWh	Feb 1958	Jul 2026	Subbituminous Coal : 99.5%
Clay Boswell	ALLETE, Inc.	Cohasset, MN	6 TWh	Jun 1958	Jul 2026	Subbituminous Coal : 99.8%
Fermi	DTE Electric Company	Frenchtown Twp, MI	8 TWh	Mar 1966	Jul 2026	Nuclear
Labadie	Union Electric Co - (MO)	Labadie, MO	15 TWh	May 1970	Jul 2026	Subbituminous Coal : 99.9%
Moselle	Cooperative Energy	Moselle, MS	2 TWh	Jul 1970	Jul 2026	Natural Gas
Red Wing	Northern States Power Co - Minnesota	Red Wing, MN	127 GWh	Sep 1949	Jul 2026	Non-biogenic Municipal Solid Waste : 53.4% Biogenic Municipal Solid Waste : 43.7% Wood/Wood Waste Solids : 2.3% Natural Gas : 0.6%
R M Heskett	Montana-Dakota Utilities Co	Mandan, ND	64 GWh	Oct 1954	Jul 2026	Natural Gas
Sabine	Entergy Texas Inc.	Orange, TX	3 TWh	Dec 1961	Jul 2026	Natural Gas
Lewis Creek	Entergy Texas Inc.	Willis, TX	2 TWh	Nov 1970	Jul 2026	Natural Gas
Sioux	Union Electric Co - (MO)	West Alton, MO	4 TWh	Apr 1967	Jul 2026	Subbituminous Coal : 80.6% Bituminous Coal : 19.3%
Prairie Island	Northern States Power Co - Minnesota	Welch, MN	9 TWh	Jan 1974	Jul 2026	Nuclear
J H Campbell	Consumers Energy Co - (MI)	West Olive, MI	5 TWh	Sep 1962	Jul 2026	Subbituminous Coal : 99.6%
Muscatine Plant #1	Board of Water Electric & Communications	Muscatine, IA	711 GWh	Mar 1958	Jul 2026	Subbituminous Coal : 99.8%
Valley (WI)	Wisconsin Electric Power Co	Milwaukee, WI	327 GWh	May 1968	Jul 2026	Natural Gas
Port Washington Generating Station	Wisconsin Electric Power Co	Port Washington, WI	7 TWh	Jun 2005	Jul 2026	Natural Gas
Weston	Wisconsin Public Service Corp	Rothschild, WI	4 TWh	Nov 1954	Jul 2026	Subbituminous Coal : 99.3% Natural Gas : 0.7%
John P Madgett	Dairyland Power Coop	Alma, WI	1 TWh	Oct 1979	Jul 2026	Subbituminous Coal : 99.5% Distillate Fuel Oil : 0.5%
Waterford 3	Entergy Louisiana LLC	Killona, LA	10 TWh	Aug 1985	Jul 2026	Nuclear
Pulliam	Wisconsin Public Service Corp	Green Bay, WI	62 GWh	Aug 1949	Jul 2026	Natural Gas
French Island	Northern States Power Co - Minnesota	La Cross, WI	68 GWh	Dec 1939	Jul 2026	Wood/Wood Waste Solids : 41.6% Non-biogenic Municipal Solid Waste : 25.4% Biogenic Municipal Solid Waste : 20.7% Distillate Fuel Oil : 12.0%
R D Morrow	Cooperative Energy	Purvis, MS	3 TWh	Mar 1978	Jul 2026	Natural Gas
Big Cajun 2	Louisiana Generating LLC	New Roads, LA	1 TWh	Jun 1981	Jul 2026	Subbituminous Coal : 74.8% Natural Gas : 25.2%
Newton	Illinois Power Generating Co	Newton, IL	3 TWh	Oct 1977	Jul 2026	Subbituminous Coal : 99.8%
R M Schahfer	Northern Indiana Pub Serv Co	Wheatfield, IN	773 GWh	Nov 1976	Jul 2026	Bituminous Coal : 97.4% Natural Gas : 2.6%
Big Stone	Otter Tail Power Co	Big Stone City, SD	2 TWh	Apr 1975	Jul 2026	Subbituminous Coal : 99.7%
Sherburne County	Northern States Power Co - Minnesota	Becker, MN	6 TWh	Mar 1976	Jul 2026	Subbituminous Coal : 99.8%
Grand Gulf	System Energy Resources, Inc	Port Gibson, MS	10 TWh	Jun 1985	Jul 2026	Nuclear
White Bluff	Entergy Arkansas LLC	Redfield, AR	3 TWh	Jul 1980	Jul 2026	Subbituminous Coal : 99.5% Distillate Fuel Oil : 0.5%
Callaway	Union Electric Co - (MO)	Fulton, MO	10 TWh	Nov 1984	Jul 2026	Nuclear
A B Brown	Southern Indiana Gas & Elec Co	Mount Vernon, IN	753 GWh	Feb 1979	Jul 2026	Natural Gas
Gibson	Duke Energy Indiana, LLC	Owensville, IN	11 TWh	Mar 1975	Jul 2026	Bituminous Coal : 99.6%
Louisiana 1	Entergy Louisiana LLC	Baton Rouge, LA	3 TWh	Sep 1951	Jul 2026	Natural Gas : 71.4% Other Gas : 28.6%
R S Nelson	Entergy Louisiana LLC	Westlake, LA	2 TWh	Jan 1959	Jul 2026	Subbituminous Coal : 99.7%

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	433.1 GWh	4
#26	Associated Electric Cooperative, Inc.	22.8 TWh	47
#13	Duke Energy Carolinas	113.6 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	891.7 TWh	2,806
#6	Southern Company Services, Inc. - Trans	258.9 TWh	423
#5	Southwest Power Pool	314.8 TWh	876
#53	Southwestern Power Administration	3.6 TWh	37
#9	Tennessee Valley Authority	166.3 TWh	209

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	891.7 TWh	2,806
#2	Midcontinent Independent System Operator, Inc.	678.0 TWh	3,095
#3	Electric Reliability Council of Texas, Inc.	506.6 TWh	1,487
#5	Southwest Power Pool	314.8 TWh	876
#6	Southern Company Services, Inc. - Trans	258.9 TWh	423
#7	California Independent System Operator	167.6 TWh	2,170
#9	Tennessee Valley Authority	166.3 TWh	209
#10	Florida Power & Light Co.	152.8 TWh	188
#12	New York Independent System Operator	134.2 TWh	1,334
#13	Duke Energy Carolinas	113.6 TWh	578