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	677.7 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 \| 6.1% 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
Roquette America	Roquette America	Keokuk, IA	222 GWh	Jun 2004	Jul 2026	Natural Gas
Wyandotte	Wyandotte Municipal Serv Comm - (MI)	Wyandotte, MI	116 MWh	Dec 1947	Jul 2026	Distillate Fuel Oil
Arq Solutions Red River	Arq Solutions (Red River), LLC	Coushatta, LA	105 GWh	Jan 2011	Jul 2026	Waste Heat
SIUC	Southern Illinois University Carbondale	Carbondale, IL	9 GWh	May 1998	Jul 2026	Bituminous Coal
Alpena Cement Plant	Amrize Cement Inc.	Alpena, MI	212 GWh	Dec 1951	Jul 2026	Petroleum Coke : 86.9% Natural Gas : 13.1%
Lake Charles Polymers	Equistar Chemicals LP	Westlake, LA	200 GWh	Aug 2011	Jul 2026	Natural Gas
Plaquemine Cogeneration Plant	Dow Chemical Co	Plaquemine, LA	6 TWh	Feb 2004	Jul 2026	Natural Gas : 97.3% Other Gas : 2.7%
Big Stone	Otter Tail Power Co	Big Stone City, SD	2 TWh	Apr 1975	Jul 2026	Subbituminous Coal : 99.7%
Bayou Cove Peaking Power	Bayou Cove Peaking Power, LLC	Jennings, LA	131 GWh	Jun 2002	Jul 2026	Natural Gas
Eclipse Wind Farm	MidAmerican Energy Co	Adair, IA	820 GWh	Aug 2012	Jul 2026	Wind
McKinley Wind Park	DTE Electric Company	Pigeon, MI	52 GWh	Nov 2012	Jul 2026	Wind
Clay Boswell	ALLETE, Inc.	Cohasset, MN	6 TWh	Jun 1958	Jul 2026	Subbituminous Coal : 99.8%
Minden Wind Park	DTE Electric Company	Minden City, MI	109 GWh	Nov 2012	Jul 2026	Wind
Sigel Wind Park	DTE Electric Company	Harbor Beach, MI	246 GWh	Nov 2012	Jul 2026	Wind
Purdue University	Purdue University	West Lafayette, IN	129 GWh	Dec 1968	Jul 2026	Natural Gas : 94.3% Bituminous Coal : 5.7%
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%
Wabash Valley Power IGCC	Wabash Valley Power Assn, Inc	Terre Haute, IN	477 GWh	Nov 1953	Jul 2026	Natural Gas
Sherburne County	Northern States Power Co - Minnesota	Becker, MN	6 TWh	Mar 1976	Jul 2026	Subbituminous Coal : 99.8%
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%
Ouachita	Entergy Louisiana LLC	Sterlington, LA	4 TWh	Jul 2002	Jul 2026	Natural Gas
University of Northern Iowa	University of Northern Iowa	Cedar Falls, IA	25 GWh	Oct 1982	Jul 2026	Natural Gas : 71.8% Petroleum Coke : 19.8% Bituminous Coal : 8.2%
Washington Parish Energy Center	Entergy Louisiana LLC	Bogalusa, LA	290 GWh	Oct 2020	Jul 2026	Natural Gas
Lewis & Clark	Montana-Dakota Utilities Co	Richland, MT	12 GWh	Sep 1958	Jul 2026	Natural Gas
High Bridge	Northern States Power Co - Minnesota	St. Paul, MN	3 TWh	Apr 2008	Jul 2026	Natural Gas
State Farm	State Farm Insurance	Bloomington, IL	30 MWh	Sep 1996	Jul 2026	Distillate Fuel Oil
Allen S King	Northern States Power Co - Minnesota	Oak Park Heights, MN	861 GWh	Feb 1958	Jul 2026	Subbituminous Coal : 99.5%
Monticello Nuclear Facility	Northern States Power Co - Minnesota	Monticello, MN	5 TWh	May 1971	Jul 2026	Nuclear
Prairie Island	Northern States Power Co - Minnesota	Welch, MN	9 TWh	Jan 1974	Jul 2026	Nuclear
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%
Archer Daniels Midland Decatur	Archer Daniels Midland Co	Decatur, IL	917 GWh	Mar 1987	Jul 2026	Bituminous Coal : 64.8% Subbituminous Coal : 35.0%
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%
Archer Daniels Midland Cedar Rapids	Archer Daniels Midland Co	Cedar Rapids, IA	1 TWh	Oct 1988	Jul 2026	Subbituminous Coal : 59.1% Natural Gas : 26.7% Bituminous Coal : 14.2%
GRS Arbor Hills	Gas Recovery Systems Inc	Northville, MI	1 GWh	May 1996	Jul 2026	Landfill Gas
R M Schahfer	Northern Indiana Pub Serv Co	Wheatfield, IN	773 GWh	Nov 1976	Jul 2026	Bituminous Coal : 97.4% Natural Gas : 2.6%
Archer Daniels Midland Clinton	Archer Daniels Midland Co	Clinton, IA	699 GWh	Jan 2009	Jul 2026	Subbituminous Coal : 88.8% Other Biomass Solids : 7.0% Bituminous Coal : 4.2%
Prairie Rose Wind Farm	Prairie Rose Wind Farm	Hardwick, MN	457 GWh	Nov 2012	Jul 2026	Wind
Perryville Power Station	Entergy Louisiana LLC	Sterlington, LA	4 TWh	May 2001	Jul 2026	Natural Gas
Riverside Energy Center	Wisconsin Power & Light Co	Beloit, WI	3 TWh	May 2004	Jul 2026	Natural Gas
Grand Gulf	System Energy Resources, Inc	Port Gibson, MS	10 TWh	Jun 1985	Jul 2026	Nuclear
Sabine River Operations	The Dow Chemical Company	Orange, TX	2 TWh	Dec 1947	Jul 2026	Natural Gas : 99.7%
Midland Cogeneration Venture	Midland Cogeneration Venture	Midland, MI	10 TWh	May 1989	Jul 2026	Natural Gas
Rolling Hills Wind Farm	MidAmerican Energy Co	Massena, IA	2 TWh	Nov 2011	Jul 2026	Wind
Magnet Cove	Arkansas Electric Coop Corp	Malvern, AR	4 TWh	Jun 2005	Jul 2026	Natural Gas
Garden Wind LLC	Garden Wind LLC	Zearing, IA	322 GWh	Nov 2009	Jul 2026	Wind
Crystal Lake 3 LLC	Crystal Lake 3 LLC	Britt, IA	232 GWh	Nov 2009	Jul 2026	Wind
Pine Tree Acres WM LFGTE	WM Renewable Energy LLC	Lenox, MI	88 GWh	Feb 2012	Jul 2026	Landfill Gas
R D Morrow	Cooperative Energy	Purvis, MS	3 TWh	Mar 1978	Jul 2026	Natural Gas
Montfort Wind Energy Center	Wisconsin Electric Power Co	Montfort, WI	50 GWh	May 2002	Jul 2026	Wind
Buffalo Ridge II LLC	Avangrid Power LLC	Elkton, SD	506 GWh	Nov 2010	Jul 2026	Wind
Gratiot Wind Park	DTE Electric Company	Breckenridge, MI	214 GWh	Oct 2011	Jul 2026	Wind
Big Cajun 2	Louisiana Generating LLC	New Roads, LA	1 TWh	Jun 1981	Jul 2026	Subbituminous Coal : 74.8% Natural Gas : 25.2%
Smithland Hydroelectric Plant	American Mun Power-Ohio, Inc	Smithland, KY	428 GWh	Jun 2017	Jul 2026	Water
Greenwood (MI)	DTE Electric Company	Avoca, MI	2 TWh	Jun 1979	Jul 2026	Natural Gas
Belle River	DTE Electric Company	China Twp, MI	4 TWh	Oct 1981	Jul 2026	Subbituminous Coal : 67.9% Natural Gas : 31.7%
MNDOT Standby Generation	State of Minnesota Department of Administration	St. Paul, MN	47 MWh	Jun 1995	Jul 2026	Distillate Fuel Oil
International Falls Power	Boise White Paper LLC	International Falls, MN	57 GWh	Dec 1923	Jul 2026	Water
Boise Cascade International Falls	Boise White Paper LLC	International Falls, MN	338 GWh	Dec 1926	Jul 2026	Black Liquor : 63.6% Natural Gas : 22.5% Wood/Wood Waste Solids : 12.6% Sludge Waste : 1.3%
Expander Turbine	Cleveland Cliffs	East Chicago, IN	86 GWh	Apr 1981	Jul 2026	Blast Furnace Gas
Lakefield Wind Project LLC	EDF Renewable Asset Holdings, Inc.	Lakefield, MN	396 GWh	Sep 2011	Jul 2026	Wind
Coal Creek	Rainbow Energy Center	Underwood, ND	8 TWh	May 1979	Jul 2026	Refined Coal : 99.9%
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%
Prairie State Generating Station	Prairie State Generating Co LLC	Marissa, IL	12 TWh	May 2012	Jul 2026	Bituminous Coal : 99.8%
Consumer Operations LLC	Georgia-Pacific Consumer Oper. Green Bay LLC	Green Bay, WI	242 GWh	Dec 1953	Jul 2026	Natural Gas
T B Simon Power Plant	Michigan State University	East Lansing, MI	274 GWh	Nov 1965	Jul 2026	Natural Gas
OREG 3 Inc	Ormat Nevada Inc	Trimont, MN	43 GWh	Jul 2010	Jul 2026	Waste Heat
Newton	Illinois Power Generating Co	Newton, IL	3 TWh	Oct 1977	Jul 2026	Subbituminous Coal : 99.8%
White Bluff	Entergy Arkansas LLC	Redfield, AR	3 TWh	Jul 1980	Jul 2026	Subbituminous Coal : 99.5% Distillate Fuel Oil : 0.5%
John P Madgett	Dairyland Power Coop	Alma, WI	1 TWh	Oct 1979	Jul 2026	Subbituminous Coal : 99.5% Distillate Fuel Oil : 0.5%
Glacier Hills	Wisconsin Electric Power Co	Cambria, WI	331 GWh	Nov 2011	Jul 2026	Wind
Waterford 3	Entergy Louisiana LLC	Killona, LA	10 TWh	Aug 1985	Jul 2026	Nuclear
Elk River	Great River Energy	Elk River, MN	145 GWh	Dec 1950	Jul 2026	Natural Gas : 90.1% Distillate Fuel Oil : 9.9%
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%
Mosaic Phosphates Uncle Sam	Mosaic Phosphates Co.	Uncle Sam, LA	99 GWh	Dec 1967	Jul 2026	Waste Heat : 91.7% Natural Gas : 8.3%
CF Industries Yazoo City Complex	CF Industries Nitrogen LLC	Yazoo City, MS	88 GWh	Jun 1984	Jul 2026	Natural Gas
Moselle	Cooperative Energy	Moselle, MS	2 TWh	Jul 1970	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%
Labadie	Union Electric Co - (MO)	Labadie, MO	15 TWh	May 1970	Jul 2026	Subbituminous Coal : 99.9%
Hancock County Wind Energy Center	FPL Energy Hancock County Wind, LLC	Garner, IA	250 GWh	Nov 2002	Jul 2026	Wind
Sioux	Union Electric Co - (MO)	West Alton, MO	4 TWh	Apr 1967	Jul 2026	Subbituminous Coal : 80.6% Bituminous Coal : 19.3%
Coyote	Otter Tail Power Co	Beulah, ND	2 TWh	Apr 1981	Jul 2026	Lignite Coal : 99.8%
Quilt Block Wind Farm LLC	Quilt Block Wind Farm LLC	Darlington, WI	369 GWh	Aug 2017	Jul 2026	Wind
Fox Energy Center	Wisconsin Public Service Corp	Wrightstown, WI	4 TWh	May 2005	Jul 2026	Natural Gas
R M Heskett	Montana-Dakota Utilities Co	Mandan, ND	64 GWh	Oct 1954	Jul 2026	Natural Gas
Granite City Works	United States Steel Granite City Works	Granite City, IL	448 GWh	May 2010	Jul 2026	Purchased Steam : 49.2% Natural Gas : 43.8% Blast Furnace Gas : 7.0%
Milton R Young	Minnkota Power Coop, Inc	Center, ND	4 TWh	Sep 1970	Jul 2026	Lignite Coal : 99.8%
Blue Sky Green Field Wind Project	Wisconsin Electric Power Co	Fond du Lac, WI	317 GWh	Apr 2008	Jul 2026	Wind
Lewis Creek	Entergy Texas Inc.	Willis, TX	2 TWh	Nov 1970	Jul 2026	Natural Gas
Sabine	Entergy Texas Inc.	Orange, TX	3 TWh	Dec 1961	Jul 2026	Natural Gas
Merricourt Wind Energy Center	Otter Tail Power Co	Kulm, ND	565 GWh	Nov 2020	Jul 2026	Wind
Nobles Wind Project	Northern States Power Co - Minnesota	Reading, MN	780 GWh	Nov 2010	Jul 2026	Wind
Arkansas Nuclear One	Entergy Arkansas LLC	Russellville, AR	14 TWh	Nov 1974	Jul 2026	Nuclear
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%
Emery Station	Interstate Power and Light Co	Clear Lake, IA	2 TWh	Apr 2004	Jul 2026	Natural Gas
Fenton Wind Farm	EDF Renewable Asset Holdings, Inc.	Chandler, MN	380 GWh	Aug 2007	Jul 2026	Wind
Diesel Generators	Madison Gas & Electric Co	Madison, WI	1 GWh	May 2001	Jul 2026	Distillate Fuel Oil
Columbia (WI)	Wisconsin Power & Light Co	Pardeville, WI	5 TWh	Apr 1975	Jul 2026	Subbituminous Coal : 99.9%
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%
Forward Wind Energy Center	Wisconsin Public Service Corp	Brownsville, WI	121 GWh	Jun 2008	Jul 2026	Wind
FPL Energy Crystal Lake Wind II LLC	FPL Energy Crystal Lake Wind II LLC	Britt, IA	703 GWh	Dec 2008	Jul 2026	Wind
FPL Energy Story Wind LLC	FPL Energy Story Wind LLC	Zearing, IA	566 GWh	Nov 2008	Jul 2026	Wind

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	433.0 GWh	4
#26	Associated Electric Cooperative, Inc.	22.9 TWh	47
#13	Duke Energy Carolinas	113.4 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	890.9 TWh	2,806
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#5	Southwest Power Pool	314.5 TWh	876
#53	Southwestern Power Administration	3.5 TWh	37
#9	Tennessee Valley Authority	166.2 TWh	209

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	890.9 TWh	2,806
#2	Midcontinent Independent System Operator, Inc.	677.7 TWh	3,095
#3	Electric Reliability Council of Texas, Inc.	506.3 TWh	1,487
#5	Southwest Power Pool	314.5 TWh	876
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#7	California Independent System Operator	168.7 TWh	2,170
#9	Tennessee Valley Authority	166.2 TWh	209
#10	Florida Power & Light Co.	153.0 TWh	188
#12	New York Independent System Operator	134.1 TWh	1,334
#13	Duke Energy Carolinas	113.4 TWh	578