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	May 2025
Annual Generation	643.3 TWh
Power Plants	2,653
Utilities	1,202
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 \| 36.6% Coal \| 28.1% Wind \| 15.6% Nuclear \| 14.4% Solar \| 3.2% Water \| 1.7% Other Fuel \| 0.5%

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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
Noble Ridge LLC	RENEW Energy Inc	Wilmont, MN	81 MWh	Nov 2001	Nov 2023	Wind
Sumpter	Wolverine Power Supply Coop	Belleville, MI	120 GWh	Jun 2002	Nov 2023	Natural Gas
Elk Mound	Dairyland Power Coop	Elk Mound, WI	37 GWh	May 2001	Nov 2023	Natural Gas : 99.8%
Minnesota River	Minnesota Municipal Power Agny	Chaska, MN	7 GWh	Apr 2001	Nov 2023	Natural Gas
Calcasieu	Entergy Louisiana LLC	Sulphur, LA	104 GWh	Apr 2000	Nov 2023	Natural Gas
Gibson City Energy Center LLC	Earthrise Energy, PBC	Gibson City, IL	76 GWh	May 2000	Nov 2023	Natural Gas
East Chicago	Altus Power America Management, LLC	East Chicago, IN	3 GWh	Feb 2013	Nov 2023	Solar
Audrain Generating Station	Union Electric Co - (MO)	Vandalia, MO	197 GWh	Jan 2001	Nov 2023	Natural Gas
Novel Schroeder Solar LLC CSG	REA Investments, LLC	Renville, MN	2 GWh	Dec 2022	Nov 2023	Solar
Slocum	DTE Electric Company	Trenton, MI	96 MWh	Oct 1968	Nov 2023	Distillate Fuel Oil
Remmel	Entergy Arkansas LLC	Malvern, AR	40 GWh	Dec 1924	Dec 2023	Water
Victoria Dam	Upper Peninsula Power Company	Rockland, MI	53 GWh	Dec 1930	Dec 2023	Water
Blakely Mountain	USCE -Vickburg District	Royal, AR	235 GWh	Aug 1955	Dec 2023	Water
McClellan (AR)	Arkansas Electric Coop Corp	Camden, AR	41 GWh	Apr 1972	Dec 2023	Natural Gas
Cooke	Consumers Energy Co - (MI)	Oscoda, MI	26 GWh	Dec 1910	Dec 2023	Water
Prairie River	ALLETE, Inc.	Grand Rapids, MN	2 GWh	Mar 1920	Dec 2023	Water
Moline	MidAmerican Energy Co	Moline, IL	22 GWh	Dec 1941	Dec 2023	Water : 99.7%
Rockton	Eagle Creek Renewable Energy, LLC	Rockton, IL	6 GWh	Dec 1928	Dec 2023	Water
Venice	Union Electric Co - (MO)	Venice, IL	14 GWh	May 2002	Dec 2023	Natural Gas
Breese	City of Breese - (IL)	Breese, IL	264 MWh	Nov 1953	Dec 2023	Distillate Fuel Oil
Bushnell	City of Bushnell - (IL)	Bushnell, IL	36 MWh	May 1940	Dec 2023	Distillate Fuel Oil
Carlyle	City of Carlyle - (IL)	Carlyle, IL	189 MWh	Jul 1964	Dec 2023	Distillate Fuel Oil
Carmi	City of Carmi - (IL)	Carmi, IL	47 MWh	Nov 1948	Dec 2023	Distillate Fuel Oil
Freeburg	Village of Freeburg - (IL)	Freeburg, IL	230 MWh	Jul 1948	Dec 2023	Distillate Fuel Oil
Loud	Consumers Energy Co - (MI)	Oscoda, MI	17 GWh	Dec 1912	Dec 2023	Water
Highland	City of Highland	Highland, IL	105 MWh	Feb 1967	Dec 2023	Distillate Fuel Oil
Marshall (IL)	City of Marshall - (IL)	Marshall, IL	202 MWh	Mar 2002	Dec 2023	Distillate Fuel Oil
C W Tippy	Consumers Energy Co - (MI)	Wellston, MI	58 GWh	Dec 1917	Dec 2023	Water
Princeton (IL)	City of Princeton - (IL)	Princeton, IL	1 GWh	Jun 1953	Dec 2023	Natural Gas : 99.0% Distillate Fuel Oil : 1.0%
Prickett	Upper Peninsula Power Company	Pelkie, MI	8 GWh	Oct 1931	Dec 2023	Water
Red Bud	City of Red Bud - (IL)	Red Bud, IL	123 MWh	Feb 1959	Dec 2023	Distillate Fuel Oil
Reynolds	City of Springfield - (IL)	Springfield, IL	66 MWh	Oct 1970	Dec 2023	Distillate Fuel Oil
Chalk Hill	Wisconsin Electric Power Co	Stephenson, MI	30 GWh	Apr 1927	Dec 2023	Water
Waterloo	City of Waterloo - (IL)	Waterloo, IL	462 MWh	May 1946	Dec 2023	Natural Gas : 73.4% Distillate Fuel Oil : 26.6%
Brule	Wisconsin Electric Power Co	Florence, WI	16 GWh	Dec 1918	Dec 2023	Water
Edison Sault	Cloverland Electric Co-op	Sault Ste. Marie, MI	234 GWh	Jun 1901	Dec 2023	Water
Foote	Consumers Energy Co - (MI)	Oscoda, MI	29 GWh	Dec 1917	Dec 2023	Water
Five Channels	Consumers Energy Co - (MI)	Oscoda, MI	22 GWh	Dec 1911	Dec 2023	Water
Norway (IN)	Northern Indiana Pub Serv Co	Monticello, IN	14 GWh	May 1923	Dec 2023	Water
Oakdale	Northern Indiana Pub Serv Co	Monticello, IN	20 GWh	Oct 1925	Dec 2023	Water
Hodenpyl	Consumers Energy Co - (MI)	Mesick, MI	45 GWh	Jun 1925	Dec 2023	Water
Webber	Consumers Energy Co - (MI)	Lyons, MI	11 GWh	Dec 1906	Dec 2023	Water
Markland	Duke Energy Indiana, LLC	Florence, IN	395 GWh	Dec 1966	Dec 2023	Water
Noblesville	Duke Energy Indiana, LLC	Noblesville, IN	1 TWh	Aug 1950	Dec 2023	Natural Gas
Mio	Consumers Energy Co - (MI)	Mio, MI	10 GWh	Dec 1915	Dec 2023	Water
Peru (IN)	City of Peru - (IN)	Peru, IN	1 MWh	May 1949	Dec 2023	Distillate Fuel Oil
Hardy	Consumers Energy Co - (MI)	Newaygo, MI	76 GWh	May 1931	Dec 2023	Water
Marshalltown	Interstate Power and Light Co	Marshalltown, IA	122 GWh	May 1978	Dec 2023	Natural Gas
Allegan Dam	Consumers Energy Co - (MI)	Allegan, MI	12 GWh	Dec 1934	Dec 2023	Water
Coralville GT	MidAmerican Energy Co	Coralville, IA	1 GWh	May 1970	Dec 2023	Natural Gas
Saxon Falls	Northern States Power Co - Minnesota	Saxon, WI	9 GWh	Dec 1912	Dec 2023	Water
River Hills	MidAmerican Energy Co	Des Moines, IA	2 GWh	Apr 1966	Dec 2023	Natural Gas
Manistique	Cloverland Electric Co-op	Manistique, MI	977 MWh	Jun 1960	Dec 2023	Distillate Fuel Oil
Merl Parr	MidAmerican Energy Co	Charles City, IA	756 MWh	Apr 1969	Dec 2023	Natural Gas
Keokuk	Union Electric Co - (MO)	Keokuk, IA	835 GWh	Jul 1913	Dec 2023	Water
Ames Electric Services Power Plant	City of Ames - (IA)	Ames, IA	329 GWh	Apr 1968	Dec 2023	Natural Gas : 90.5% Other Biomass Solids : 9.5%
Anita	City of Anita - (IA)	Anita, IA	12 MWh	Sep 1939	Dec 2023	Distillate Fuel Oil
Atlantic	Atlantic Municipal Utilities	Atlantic, IA	115 MWh	Aug 1966	Dec 2023	Natural Gas : 91.4% Distillate Fuel Oil : 8.6%
Bancroft	Bancroft Municipal Utilities	Bancroft, IA	320 MWh	Dec 1947	Dec 2023	Distillate Fuel Oil
Bellevue	City of Bellevue - (IA)	Bellevue, IA	52 MWh	Jun 1947	Dec 2023	Distillate Fuel Oil
Brooklyn	City of Brooklyn - (IA)	Brooklyn, IA	6 MWh	Aug 2012	Dec 2023	Distillate Fuel Oil
Cascade	Cascade Municipal Utilities	Cascade, IA	3 MWh	Mar 1951	Dec 2023	Distillate Fuel Oil
Streeter Station	Cedar Falls Utilities	Cedar Falls, IA	7 GWh	Aug 1963	Dec 2023	Natural Gas : 97.5% Bituminous Coal : 2.5%
Coggon	Coggon Municipal Light Plant	Coggon, IA	14 MWh	Sep 1957	Dec 2023	Distillate Fuel Oil
Corning	City of Corning - (IA)	Corning, IA	38 MWh	May 1975	Dec 2023	Distillate Fuel Oil
Dayton (IA)	City of Dayton - (IA)	Dayton, IA	15 MWh	Sep 2000	Dec 2023	Distillate Fuel Oil
Graettinger	City of Graettinger - (IA)	Graettinger, IA	255 MWh	Jul 1957	Dec 2023	Distillate Fuel Oil
Harlan	Harlan Municipal Utilities - (IA)	Harlan, IA	6 MWh	Jun 2001	Dec 2023	Distillate Fuel Oil
Lake Park	City of Lake Park - (IA)	Lake Park, IA	46 MWh	Mar 2005	Dec 2023	Distillate Fuel Oil
Lake Mills	City of Lake Mills	Lake Mills, IA	32 MWh	Dec 1955	Dec 2023	Distillate Fuel Oil
Lamoni Municipal Utilities	City of Lamoni - (IA)	Lamoni, IA	135 MWh	Feb 1940	Dec 2023	Distillate Fuel Oil
La Porte	La Porte City Utilities	La Porte City, IA	98 MWh	Nov 2000	Dec 2023	Distillate Fuel Oil
Lenox	City of Lenox - (IA)	Lenox, IA	12 MWh	Aug 1948	Dec 2023	Distillate Fuel Oil
Maquoketa 1	City of Maquoketa - (IA)	Maquoketa, IA	27 MWh	May 1956	Dec 2023	Natural Gas : 87.4% Distillate Fuel Oil : 12.6%
McGregor	City of McGregor- (IA)	McGregor, IA	4 MWh	Nov 1941	Dec 2023	Distillate Fuel Oil
Montezuma	City of Montezuma - (IA)	Montezuma, IA	138 MWh	Jul 1940	Dec 2023	Distillate Fuel Oil : 65.1% Natural Gas : 34.9%
John H Warden	L'Anse Warden Electric Company LLC	L'Anse, MI	126 GWh	Jul 1959	Dec 2023	Wood/Wood Waste Solids : 87.9% Tire-derived Fuels : 12.1%
Ogden	City of Ogden - (IA)	Ogden, IA	5 MWh	Jun 1951	Dec 2023	Distillate Fuel Oil
Osage (IA)	City of Osage - (IA)	Osage, IA	4 GWh	Aug 1963	Dec 2023	Wind : 73.8% Solar : 26.2%
Ottumwa City of	Ottumwa City of	Ottumwa, IA	5 GWh	Jul 1931	Dec 2023	Water
Preston (IA)	City of Preston	Preston, IA	54 MWh	Nov 1968	Dec 2023	Distillate Fuel Oil : 59.1% Natural Gas : 40.9%
Sibley One	City of Sibley - (IA)	Sibley, IA	16 MWh	Aug 1971	Dec 2023	Distillate Fuel Oil : 54.7% Natural Gas : 45.3%
Spencer Gas Turbine	City of Spencer - (IA)	Spencer, IA	1 GWh	Dec 1969	Dec 2023	Kerosene
State Center	City of State Center - (IA)	State Center, IA	53 MWh	Jul 1972	Dec 2023	Distillate Fuel Oil : 69.0% Natural Gas : 31.0%
Story City	City of Story City - (IA)	Story City, IA	233 MWh	Dec 1963	Dec 2023	Distillate Fuel Oil : 95.6% Natural Gas : 4.4%
Sumner	City of Sumner - (IA)	Sumner, IA	655 MWh	Jul 1956	Dec 2023	Distillate Fuel Oil
Traer Main	City of Traer - (IA)	Traer, IA	7 MWh	Dec 1962	Dec 2023	Distillate Fuel Oil : 93.4% Natural Gas : 6.6%
Villisca Municipal Power Plant	City of Villisca - (IA)	Villisca, IA	13 MWh	May 2003	Dec 2023	Distillate Fuel Oil
Webster City	City of Webster City - (IA)	Webster City, IA	2 GWh	Mar 1972	Dec 2023	Distillate Fuel Oil
West Bend	City of West Bend	West Bent, IA	471 MWh	Nov 1954	Dec 2023	Distillate Fuel Oil
West Liberty	City of West Liberty - (IA)	West Liberty, IA	39 MWh	Sep 1974	Dec 2023	Distillate Fuel Oil
Wilton	City of Wilton - (IA)	Wilton, IA	37 MWh	Dec 1991	Dec 2023	Distillate Fuel Oil
Winterset	City of Winterset - (IA)	Winterset, IA	115 MWh	Jun 1956	Dec 2023	Distillate Fuel Oil : 61.6% Natural Gas : 38.4%
Summit Lake	Central Iowa Power Cooperative	Creston, IA	72 GWh	Feb 1951	Dec 2023	Natural Gas
Robert A Reid	Big Rivers Electric Corp	Robards, KY	6 GWh	Dec 1965	Dec 2023	Natural Gas
Superior Falls	Northern States Power Co - Minnesota	Ironwood, MI	9 GWh	Dec 1916	Dec 2023	Water
Northeast (MI)	DTE Electric Company	Warren, MI	2 GWh	Apr 1966	Dec 2023	Natural Gas : 76.9% Distillate Fuel Oil : 23.1%
Teche	Cleco Power LLC	Baldwin, LA	171 GWh	Jun 1953	Dec 2023	Natural Gas
Delray	DTE Electric Company	Detroit, MI	21 GWh	Jan 2000	Dec 2023	Natural Gas
Big Cajun 1	Louisiana Generating LLC	Jarreau, LA	268 GWh	May 1972	Dec 2023	Natural Gas

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	727.7 GWh	4
#27	Associated Electric Cooperative, Inc.	22.8 TWh	47
#13	Duke Energy Carolinas	111.4 TWh	556
#52	Duke Energy Progress West	4.1 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	33.8 TWh	20
#1	PJM Interconnection, LLC	858.5 TWh	2,305
#20	Public Service Company of Colorado	48.7 TWh	201
#5	Southwest Power Pool	297.0 TWh	762
#51	Southwestern Power Administration	4.2 TWh	31
#8	Tennessee Valley Authority	158.8 TWh	170

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	858.5 TWh	2,305
#2	Midcontinent Independent System Operator, Inc.	643.3 TWh	2,653
#3	Electric Reliability Council of Texas, Inc.	476.0 TWh	1,139
#5	Southwest Power Pool	297.0 TWh	762
#6	Southern Company Services, Inc. - Trans	251.8 TWh	393
#7	California Independent System Operator	190.1 TWh	1,943
#8	Tennessee Valley Authority	158.8 TWh	170
#10	Florida Power & Light Co.	148.3 TWh	159
#12	New York Independent System Operator	130.6 TWh	1,100
#13	Duke Energy Carolinas	111.4 TWh	556