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
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%
Labadie	Union Electric Co - (MO)	Labadie, MO	15 TWh	May 1970	Jul 2026	Subbituminous Coal : 99.9%
Arkansas Nuclear One	Entergy Arkansas LLC	Russellville, AR	14 TWh	Nov 1974	Jul 2026	Nuclear
Union Power Station	Entergy Arkansas LLC	El Dorado, AR	13 TWh	Dec 2002	Jul 2026	Natural Gas
Prairie State Generating Station	Prairie State Generating Co LLC	Marissa, IL	12 TWh	May 2012	Jul 2026	Bituminous Coal : 99.8%
Gibson	Duke Energy Indiana, LLC	Owensville, IN	11 TWh	Mar 1975	Jul 2026	Bituminous Coal : 99.6%
Grand Gulf	System Energy Resources, Inc	Port Gibson, MS	10 TWh	Jun 1985	Jul 2026	Nuclear
Callaway	Union Electric Co - (MO)	Fulton, MO	10 TWh	Nov 1984	Jul 2026	Nuclear
Point Beach Nuclear Plant	NextEra Energy Point Beach LLC	Two Rivers, WI	10 TWh	May 1969	Jul 2026	Nuclear
Waterford 3	Entergy Louisiana LLC	Killona, LA	10 TWh	Aug 1985	Jul 2026	Nuclear
Midland Cogeneration Venture	Midland Cogeneration Venture	Midland, MI	10 TWh	May 1989	Jul 2026	Natural Gas
Prairie Island	Northern States Power Co - Minnesota	Welch, MN	9 TWh	Jan 1974	Jul 2026	Nuclear
Clinton Power Station	Constellation Nuclear	Clinton, IL	8 TWh	Oct 1987	Jul 2026	Nuclear
Nine Mile Point	Entergy Louisiana LLC	Westwego, LA	8 TWh	Oct 1955	Jul 2026	Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
River Bend	Entergy Louisiana LLC	St. Francisville, LA	8 TWh	May 1986	Jul 2026	Nuclear
Coal Creek	Rainbow Energy Center	Underwood, ND	8 TWh	May 1979	Jul 2026	Refined Coal : 99.9%
Elm Road Generating Station	Wisconsin Electric Power Co	Oak Creek, WI	8 TWh	Jan 2010	Jul 2026	Subbituminous Coal : 88.7% Bituminous Coal : 7.8% Natural Gas : 3.5%
Fermi	DTE Electric Company	Frenchtown Twp, MI	8 TWh	Mar 1966	Jul 2026	Nuclear
Independence Steam Electric Station	Entergy Arkansas LLC	Newark, AR	7 TWh	Dec 1982	Jul 2026	Subbituminous Coal : 99.9%
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%
Lake Charles Power	Entergy Louisiana LLC	West Lake, LA	7 TWh	Feb 2020	Jul 2026	Natural Gas
Blue Water Energy Center	DTE Electric Company	East China, MI	7 TWh	May 2022	Jul 2026	Natural Gas
Port Washington Generating Station	Wisconsin Electric Power Co	Port Washington, WI	7 TWh	Jun 2005	Jul 2026	Natural Gas
Sherburne County	Northern States Power Co - Minnesota	Becker, MN	6 TWh	Mar 1976	Jul 2026	Subbituminous Coal : 99.8%
Zeeland Generating Station	Consumers Energy Co - (MI)	Zeeland, MI	6 TWh	May 2001	Jul 2026	Natural Gas
Acadia Energy Center	Cleco Power LLC	Eunice, LA	6 TWh	Jun 2002	Jul 2026	Natural Gas
Montgomery County	Entergy Texas Inc.	Willis, TX	6 TWh	Dec 2020	Jul 2026	Natural Gas
Baldwin Energy Complex	Dynegy Midwest Generation Inc	Baldwin, IL	6 TWh	Jun 1970	Jul 2026	Subbituminous Coal : 99.8%
Plaquemine Cogeneration Plant	Dow Chemical Co	Plaquemine, LA	6 TWh	Feb 2004	Jul 2026	Natural Gas : 97.3% Other Gas : 2.7%
Clay Boswell	ALLETE, Inc.	Cohasset, MN	6 TWh	Jun 1958	Jul 2026	Subbituminous Coal : 99.8%
Taft Cogeneration Facility	Occidental Chemical Corporation	Hahnville, LA	6 TWh	Jun 2002	Jul 2026	Natural Gas : 97.3% Other Gas : 2.7%
Eagle Valley (IN)	AES Indiana	Martinsville, IN	5 TWh	Nov 1951	Jul 2026	Natural Gas
Cottonwood Energy Company LP	Cottonwood Energy Company LP	Deweyville, TX	5 TWh	Jun 2003	Jul 2026	Natural Gas
Columbia (WI)	Wisconsin Power & Light Co	Pardeville, WI	5 TWh	Apr 1975	Jul 2026	Subbituminous Coal : 99.9%
Dearborn Industrial Generation	Dearborn Industrial Gen Inc	Dearborn, MI	5 TWh	May 1999	Jul 2026	Natural Gas
J H Campbell	Consumers Energy Co - (MI)	West Olive, MI	5 TWh	Sep 1962	Jul 2026	Subbituminous Coal : 99.6%
Monticello Nuclear Facility	Northern States Power Co - Minnesota	Monticello, MN	5 TWh	May 1971	Jul 2026	Nuclear
St. Charles Power Station (LA)	Entergy Louisiana LLC	La Place, LA	5 TWh	Apr 2019	Jul 2026	Natural Gas
Merom	Hallador Power Company, LLC	Sullivan, IN	4 TWh	Jan 1982	Jun 2026	Bituminous Coal : 99.6%
Belle River	DTE Electric Company	China Twp, MI	4 TWh	Oct 1981	Jul 2026	Subbituminous Coal : 67.9% Natural Gas : 31.7%
Ouachita	Entergy Louisiana LLC	Sterlington, LA	4 TWh	Jul 2002	Jul 2026	Natural Gas
Louisa	MidAmerican Energy Co	Muscatine, IA	4 TWh	Sep 1983	Jul 2026	Subbituminous Coal : 99.4% Natural Gas : 0.6%
AES Petersburg	AES Indiana	Petersburg, IN	4 TWh	May 1967	Jul 2026	Bituminous Coal : 93.2% Natural Gas : 6.6%
West Riverside Energy Center	Wisconsin Power & Light Co	Beloit, WI	4 TWh	Apr 2020	Jul 2026	Natural Gas
Fox Energy Center	Wisconsin Public Service Corp	Wrightstown, WI	4 TWh	May 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%
Magnet Cove	Arkansas Electric Coop Corp	Malvern, AR	4 TWh	Jun 2005	Jul 2026	Natural Gas
Harding Street	AES Indiana	Indianapolis, IN	4 TWh	May 1958	Jul 2026	Natural Gas
Jack Fusco Energy Center	Brazos Valley Energy	Thompsons, TX	4 TWh	Apr 2003	Jul 2026	Natural Gas
Cayuga	Duke Energy Indiana, LLC	Cayuga, IN	4 TWh	Sep 1970	Jul 2026	Bituminous Coal : 99.4%
ExxonMobil Beaumont Refinery	ExxonMobil Oil Corp	Beaumont, TX	4 TWh	Dec 1965	Jul 2026	Natural Gas : 96.6% Other Gas : 3.4%
Milton R Young	Minnkota Power Coop, Inc	Center, ND	4 TWh	Sep 1970	Jul 2026	Lignite Coal : 99.8%
Sugar Creek Power	Northern Indiana Pub Serv Co	West Terre Haute, IN	4 TWh	May 2002	Jul 2026	Natural Gas
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%
Perryville Power Station	Entergy Louisiana LLC	Sterlington, LA	4 TWh	May 2001	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%
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%
Ottumwa	Interstate Power and Light Co	Ottumwa, IA	4 TWh	Apr 1981	Jul 2026	Subbituminous Coal : 99.6%
Coughlin Power Station	Cleco Power LLC	St Landry, LA	4 TWh	Mar 1961	Jul 2026	Natural Gas
Riverside Energy Center	Wisconsin Power & Light Co	Beloit, WI	3 TWh	May 2004	Jul 2026	Natural Gas
Sabine	Entergy Texas Inc.	Orange, TX	3 TWh	Dec 1961	Jul 2026	Natural Gas
Newton	Illinois Power Generating Co	Newton, IL	3 TWh	Oct 1977	Jul 2026	Subbituminous Coal : 99.8%
Holland Energy Facility	NAES Corporation - (WA)	Beecher City, IL	3 TWh	Aug 2002	Jul 2026	Natural Gas
R D Morrow	Cooperative Energy	Purvis, MS	3 TWh	Mar 1978	Jul 2026	Natural Gas
Warrick	AGC Division of APGI Inc	Newburgh, IN	3 TWh	Mar 1960	Jul 2026	Bituminous Coal : 97.9% Natural Gas : 2.1%
High Bridge	Northern States Power Co - Minnesota	St. Paul, MN	3 TWh	Apr 2008	Jul 2026	Natural Gas
Marshalltown Generating Station	Interstate Power and Light Co	Marshalltown, IA	3 TWh	Mar 2017	Jul 2026	Natural Gas : 99.9%
Attala	Entergy Mississippi LLC	Sallis, MS	3 TWh	Feb 2001	Jul 2026	Natural Gas
White Bluff	Entergy Arkansas LLC	Redfield, AR	3 TWh	Jul 1980	Jul 2026	Subbituminous Coal : 99.5% Distillate Fuel Oil : 0.5%
Hot Spring Generating Facility	Entergy Arkansas LLC	Malvern, AR	3 TWh	May 2002	Jun 2026	Natural Gas
RS Cogen	Westlake 2 US LLC	Lake Charles, LA	3 TWh	Nov 2002	Jul 2026	Natural Gas
Magnolia Power	Magnolia Power Holdings LLC	Plaquemine, LA	3 TWh	Nov 2025	Jul 2026	Natural Gas
Louisiana 1	Entergy Louisiana LLC	Baton Rouge, LA	3 TWh	Sep 1951	Jul 2026	Natural Gas : 71.4% Other Gas : 28.6%
Plum Point Energy Station	NRG Energy Services - Plum Point	Osceola, AR	3 TWh	Aug 2010	Jul 2026	Subbituminous Coal : 99.7%
Carville Energy LLC	Carville Energy LLC	St Gabriel, LA	3 TWh	May 2003	Jul 2026	Natural Gas
Whiting Clean Energy	BP Alternative Energy	Whiting, IN	3 TWh	Mar 2002	Jul 2026	Natural Gas
Mankato Energy Center	MEC Holdings, LLC	Mankato, MN	3 TWh	Jun 2006	Dec 2025	Natural Gas
Coyote	Otter Tail Power Co	Beulah, ND	2 TWh	Apr 1981	Jul 2026	Lignite Coal : 99.8%
R S Nelson	Entergy Louisiana LLC	Westlake, LA	2 TWh	Jan 1959	Jul 2026	Subbituminous Coal : 99.7%
Emery Station	Interstate Power and Light Co	Clear Lake, IA	2 TWh	Apr 2004	Jul 2026	Natural Gas
Sabine River Operations	The Dow Chemical Company	Orange, TX	2 TWh	Dec 1947	Jul 2026	Natural Gas : 99.7%
Hinds Energy Facility	Entergy Mississippi LLC	Jackson, MS	2 TWh	Apr 2001	Jul 2026	Natural Gas
Edgewater	Wisconsin Power & Light Co	Sheboygan, WI	2 TWh	Jun 1951	Jul 2026	Subbituminous Coal : 99.9%
Lewis Creek	Entergy Texas Inc.	Willis, TX	2 TWh	Nov 1970	Jul 2026	Natural Gas
South Oak Creek	Wisconsin Electric Power Co	Oak Creek, WI	2 TWh	Nov 1959	Jul 2026	Subbituminous Coal : 99.5%
Greater Des Moines	MidAmerican Energy Co	Pleasant Hill, IA	2 TWh	Apr 2003	Dec 2025	Natural Gas
Dow St Charles Operations	Dow Chemical Co - St Charles	Taft, LA	2 TWh	Nov 1996	Jul 2026	Natural Gas : 98.9% Other Gas : 1.1%
Orient Wind Farm	MidAmerican Energy Co	Orient, IA	2 TWh	Nov 2018	Jul 2026	Wind
Jackson Generating Station	Consumers Energy Co - (MI)	Jackson, MI	2 TWh	Jun 2002	Jul 2026	Natural Gas
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%
Greenwood (MI)	DTE Electric Company	Avoca, MI	2 TWh	Jun 1979	Jul 2026	Natural Gas
Noblesville	Duke Energy Indiana, LLC	Noblesville, IN	2 TWh	Aug 1950	Dec 2025	Natural Gas
Motiva Enterprises Port Arthur Refinery	Motiva Enterprises LLC	Port Arthur, TX	2 TWh	May 1957	Jul 2026	Natural Gas : 90.7% Other Gas : 9.3%
Big Stone	Otter Tail Power Co	Big Stone City, SD	2 TWh	Apr 1975	Jul 2026	Subbituminous Coal : 99.7%
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%
Rolling Hills Wind Farm	MidAmerican Energy Co	Massena, IA	2 TWh	Nov 2011	Jul 2026	Wind
Moselle	Cooperative Energy	Moselle, MS	2 TWh	Jul 1970	Jul 2026	Natural Gas
PPG Powerhouse C	Westlake 2 US LLC	Lake Charles, LA	1 TWh	Jul 1977	Jul 2026	Natural Gas : 99.9%
D B Wilson	Big Rivers Electric Corp	Centertown, KY	1 TWh	Aug 1984	Jul 2026	Bituminous Coal : 98.9% Distillate Fuel Oil : 1.1%

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