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	Nov 2025
Annual Generation	655.1 TWh
Power Plants	2,831
Utilities	1,296
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 \| 35.7% Coal \| 29% Wind \| 14.9% Nuclear \| 13.9% Solar \| 4.5% Water \| 1.5% Other Fuel \| 0.6%

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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
George Johnson	Wolverine Power Supply Coop	Hersey, MI	34 GWh	Aug 1993	Dec 2024	Natural Gas
Cadillac Renewable Energy	Cadillac Renewable Energy LLC	Cadillac, MI	136 GWh	Jul 1993	Dec 2024	Wood/Wood Waste Solids
Concord	Wisconsin Electric Power Co	Watertown, WI	175 GWh	Jun 1993	Dec 2024	Natural Gas : 99.8%
Alliant SBD 9301 Prairie Farms	Industrial Energy Applications Inc	Dubuque, IA	86 MWh	Jun 1993	Dec 2024	Distillate Fuel Oil
South Fond Du Lac	Wisconsin Power & Light Co	Fond du Lac, WI	5 GWh	Apr 1993	Dec 2024	Natural Gas : 98.0% Distillate Fuel Oil : 2.0%
Henry Station	City of Bay City - (MI)	Bay City, MI	653 MWh	Apr 1993	Dec 2024	Natural Gas : 94.6% Distillate Fuel Oil : 5.4%
JCO Oxides Olefins Plant	Indorama Ventures	Port Neeches, TX	614 GWh	Aug 1992	Dec 2024	Natural Gas
Hendricks Regional Health	Hendricks Regional Health	Danville, IN	23 MWh	Aug 1992	Sep 2025	Distillate Fuel Oil
Alliant SBD 9107 JBS USA	Industrial Energy Applications Inc	Marshalltown, IA	62 MWh	Jul 1992	Sep 2025	Distillate Fuel Oil
Sumpter Energy Associates	NextEra Renewable Fuels, LLC	Belleville, MI	63 GWh	Jun 1992	Dec 2024	Landfill Gas
Alliant SBD 9106 Rockwell CR	Industrial Energy Applications Inc	Cedar Rapids, IA	253 MWh	May 1992	Dec 2024	Distillate Fuel Oil
491 E 48th Street	City of Holland	Holland, MI	92 GWh	Apr 1992	Dec 2024	Natural Gas
Grayling Generating Station	NorthStar Clean Energy	Grayling, MI	165 GWh	Apr 1992	Dec 2024	Wood/Wood Waste Solids : 99.8%
Evonik Industries AG	Evonik Degussa Corporation	Lafayette, IN	7 MWh	Apr 1992	Dec 2024	Distillate Fuel Oil
Venice Resources Gas Recovery	WM Renewable Energy LLC	Lennon, MI	11 GWh	Feb 1992	Dec 2024	Landfill Gas
Pheasant Run Landfill Gas Recovery	WM Renewable Energy LLC	Bristol, WI	48 GWh	Jan 1992	Dec 2024	Landfill Gas
Southwestern Bell Telephone	AT&T	St. Louis, MO	116 MWh	Jan 1992	Aug 2025	Distillate Fuel Oil
Wilton	City of Wilton - (IA)	Wilton, IA	9 MWh	Dec 1991	Dec 2024	Distillate Fuel Oil
Hastings City Hydroelectric	Hastings Lock & Dam	Hastings, MN	13 GWh	Dec 1991	Dec 2024	Water
Des Moines Wastewater Reclamation Fac	Des Moines Metro WRF	Des Moines, IA	71 MWh	Jun 1991	Dec 2024	Natural Gas
Lime Creek	Interstate Power and Light Co	Mason City, IA	115 MWh	Apr 1991	Aug 2024	Distillate Fuel Oil
Grand River	Energy Developments, Inc d/b/a EDL	Grand Ledge, MI	7 GWh	Mar 1991	Dec 2024	Landfill Gas
Milam Gas Recovery	WM Illinois Renewable Energy LLC	East St. Lois, IL	19 GWh	Mar 1991	Dec 2024	Natural Gas
La Farge	La Farge Municipal Electric Co	La Farge, WI	5 MWh	Sep 1990	Dec 2024	Distillate Fuel Oil
Ada Cogeneration LP	Ada Cogeneration LLC	Ada, MI	158 GWh	Sep 1990	Dec 2024	Natural Gas
American Crystal Sugar Hillsboro	American Crystal Sugar Co	Hillsboro, ND	87 GWh	Aug 1990	Dec 2024	Subbituminous Coal
American Crystal Sugar East Grand Forks	American Crystal Sugar Co	East Grand Forks, MN	43 GWh	Aug 1990	Dec 2024	Subbituminous Coal
Norway Point Hydropower Project	Eagle Creek Renewable Energy, LLC	Alpena, MI	15 GWh	Aug 1990	Dec 2024	Water
Four Mile Hydropower Project	Eagle Creek Renewable Energy, LLC	Alpena, MI	9 GWh	Aug 1990	Dec 2024	Water
Ninth Street Hydropower Project	Eagle Creek Renewable Energy, LLC	Alpena, MI	7 GWh	Aug 1990	Dec 2024	Water
Pleasant Hill	MidAmerican Energy Co	Pleasant Hill, IA	22 GWh	May 1990	Dec 2024	Natural Gas : 99.9%
ExxonMobil Baton Rouge Turbine Generator	Exxon Mobil Corp	Baton Rouge, LA	654 GWh	Apr 1990	Dec 2024	Natural Gas
Port Allen (LA)	Placid Refining Co LLC	Port Allen, LA	43 GWh	Apr 1990	Dec 2024	Natural Gas
TES Filer City Station	TES Filer City Station LP	Filer City, MI	316 GWh	Apr 1990	Sep 2025	Bituminous Coal : 64.6% Natural Gas : 21.3% Wood/Wood Waste Solids : 14.1%
Sidney A Murray Jr Hydroelectric	First National Bank-Commerce	Vidalia, LA	885 GWh	Apr 1990	Dec 2024	Water
Alliant SBD 9205 A Y McDonald	Industrial Energy Applications Inc	Dubuque, IA	9 MWh	Feb 1990	Dec 2024	Distillate Fuel Oil
Lorin Industries	Lorin Industries	Muskegon, MI	5 GWh	Dec 1989	Dec 2024	Natural Gas
Covanta Hennepin Energy	Covanta Energy Co	Minneapolis, MN	166 GWh	Sep 1989	Sep 2025	Non-biogenic Municipal Solid Waste : 54.6% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.7%
Kent County Waste to Energy Facility	Kent County	Grand Rapids, MI	100 GWh	Sep 1989	Sep 2025	Non-biogenic Municipal Solid Waste : 54.8% Biogenic Municipal Solid Waste : 44.8%
Marceline	City of Marceline - (MO)	Marceline, MO	4 MWh	Jul 1989	Dec 2024	Distillate Fuel Oil
Warner Lambert	University of Michigan NCampus Research	Ann Arbor, MI	24 GWh	Jul 1989	Sep 2025	Natural Gas
Tazewell Gas Recovery	WM Illinois Renewable Energy LLC	East Peoria, IL	13 GWh	Jun 1989	Dec 2024	Landfill Gas
Midland Cogeneration Venture	Midland Cogeneration Venture	Midland, MI	10 TWh	May 1989	Sep 2025	Natural Gas
Primient Decatur Plant Cogen	Primary Products Ingredients Americas, LLC	Decatur, IL	254 GWh	Dec 1988	Dec 2024	Natural Gas
National Energy of Lincoln	National Salvage & Service Corporation	Lincoln, MI	130 GWh	Dec 1988	Jun 2024	Wood/Wood Waste Solids : 81.0% Tire-derived Fuels : 18.9%
French Landing Dam	Eagle Creek Renewable Energy, LLC	Belleville, MI	8 GWh	Nov 1988	Dec 2024	Water
National Energy of McBain	National Salvage & Service Corporation	McBain, MI	122 GWh	Nov 1988	Dec 2024	Wood/Wood Waste Solids : 88.5% Tire-derived Fuels : 11.2%
Alliant SBD 9201 Norplex	Industrial Energy Applications Inc	Postville, IA	40 MWh	Nov 1988	Sep 2025	Distillate Fuel Oil
Archer Daniels Midland Cedar Rapids	Archer Daniels Midland Co	Cedar Rapids, IA	990 GWh	Oct 1988	Sep 2025	Subbituminous Coal : 59.5% Natural Gas : 25.4% Bituminous Coal : 15.1%
Murray	City of North Little Rock - (AR)	North Little Rock, AR	114 GWh	Sep 1988	Dec 2024	Water
Port Arthur Texas Refinery	Total Petrochemicals USA Inc	Port Arthur, TX	226 GWh	Jul 1988	Dec 2024	Natural Gas : 75.0% Other Gas : 25.0%
Jim Falls	Northern States Power Co - Minnesota	Jim Falls, WI	122 GWh	Jun 1988	Dec 2024	Water
Upper Sterling	City of Rock Falls - (IL)	Rock Falls, IL	9 GWh	May 1988	Dec 2024	Water
St. Cloud Hydro	St. Cloud Hydroelectric Generation Facility	St Cloud, MN	51 GWh	May 1988	Dec 2024	Water
Archer Daniels Midland Des Moines	Archer Daniels Midland Co	Des Moines, IA	2 GWh	Apr 1988	Dec 2024	Natural Gas
Combined Locks	City of Kaukauna	Combined Locks, WI	43 GWh	Jan 1988	Dec 2024	Water
Hoist	Upper Peninsula Power Company	Negaunee, MI	13 GWh	Jan 1988	Dec 2024	Water
McClure Dam	Upper Peninsula Power Company	Marquette, MI	32 GWh	Jan 1988	Dec 2024	Water
Cataract (MI)	Cataract Hydro, LLC	Gwinn, MI	5 GWh	Jan 1988	Dec 2024	Water
Panora	City of Panora - (IA)	Panora, IA	5 MWh	Dec 1987	Dec 2024	Distillate Fuel Oil
Archer Daniels Midland Peoria	BioUrja Renewables LLC	Peoria, IL	79 GWh	Dec 1987	Dec 2024	Natural Gas
Riverview Energy Systems	Riverview Energy Systems	Riverview, MI	1 GWh	Dec 1987	Dec 2024	Landfill Gas
Sibley No Two	City of Sibley - (IA)	Sibley, IA	38 MWh	Nov 1987	Dec 2024	Distillate Fuel Oil : 67.1% Natural Gas : 32.9%
Central Michigan University	Central Michigan University	Mt. Pleasant, MI	30 GWh	Nov 1987	Sep 2025	Natural Gas
Clinton Power Station	Constellation Nuclear	Clinton, IL	9 TWh	Oct 1987	Sep 2025	Nuclear
Archer Daniels Midland Mankato	Archer Daniels Midland Co	Mankato, MN	22 GWh	Sep 1987	Dec 2024	Natural Gas
East. Michigan Univ. Heating Plant	East. Michigan Univ. Heating Plant	Ypsilanti, MI	37 GWh	Sep 1987	Dec 2024	Natural Gas
Riverside (MN)	Northern States Power Co - Minnesota	Minneapolis, MN	1 TWh	Mar 1987	Sep 2025	Natural Gas
Archer Daniels Midland Decatur	Archer Daniels Midland Co	Decatur, IL	881 GWh	Mar 1987	Sep 2025	Bituminous Coal : 62.4% Subbituminous Coal : 37.4%
Olmsted Waste Energy	Olmsted County Public Works	Rochester, MN	47 GWh	Mar 1987	Dec 2024	Non-biogenic Municipal Solid Waste : 54.7% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.5%
Goodyear Beaumont Chemical Plant	Goodyear Tire & Rubber Co	Beaumont, TX	271 GWh	Feb 1987	Sep 2025	Natural Gas : 98.5% Waste/Other Oil : 1.5%
LAC Courte Oreilles Hydroelect	Renewable World Energies LLC	Winter, WI	8 GWh	Nov 1986	Dec 2024	Water
Cascade Dam (MI)	Eagle Creek Renewable Energy, LLC	Grand Rapids, MI	3 GWh	Nov 1986	Dec 2024	Water
PPG Plant C Caustic	Westlake 2 US LLC	Lake Charles, LA	14 GWh	Sep 1986	Dec 2024	Natural Gas
Alliant SBD 8602 Marion Sub	Industrial Energy Applications Inc	Marion, IA	19 MWh	Jul 1986	Dec 2024	Distillate Fuel Oil
River Bend	Entergy Louisiana LLC	St. Francisville, LA	7 TWh	May 1986	Sep 2025	Nuclear
Metro Gas Recovery	WM Renewable Energy LLC	Franklin, WI	37 GWh	Nov 1985	Dec 2024	Landfill Gas
Omega Hills Gas Recovery	WM Renewable Energy LLC	Germantown, WI	80 GWh	Nov 1985	Sep 2025	Landfill Gas
Billerud Quinnesec Mill	Billerud Quinnesec Mill	Norway, MI	294 GWh	Sep 1985	Dec 2024	Black Liquor : 67.8% Wood/Wood Waste Solids : 30.2% Natural Gas : 1.9%
Waterford 3	Entergy Louisiana LLC	Killona, LA	8 TWh	Aug 1985	Sep 2025	Nuclear
Grand Gulf	System Energy Resources, Inc	Port Gibson, MS	11 TWh	Jun 1985	Sep 2025	Nuclear
Geismar	BASF Corporation	Geismar, LA	514 GWh	Jun 1985	Dec 2024	Natural Gas : 63.1% Other Gas : 36.9%
Formosa Plastics	Formosa Plastics Corp	Baton Rouge, LA	402 GWh	Apr 1985	Dec 2024	Natural Gas
Sartell Dam	Eagle Creek Renewable Energy, LLC	Sartell, MN	29 GWh	Feb 1985	Dec 2024	Water
Lakefield Utilities	City of Lakefield - (MN)	Lakefield, MN	6 MWh	Jan 1985	Dec 2024	Distillate Fuel Oil
Callaway	Union Electric Co - (MO)	Fulton, MO	8 TWh	Nov 1984	Sep 2025	Nuclear
Sagamore Plant Cogeneration	Tate & Lyle Ingredients Americas Inc	Lafayette, IN	17 GWh	Sep 1984	Sep 2025	Natural Gas
Rochester Hydro	Rochester Public Utilities	Mazeppa, MN	10 GWh	Aug 1984	Dec 2024	Water
D B Wilson	Big Rivers Electric Corp	Centertown, KY	2 TWh	Aug 1984	Sep 2025	Bituminous Coal : 99.4% Distillate Fuel Oil : 0.6%
CF Industries Yazoo City Complex	CF Industries Nitrogen LLC	Yazoo City, MS	153 GWh	Jun 1984	Sep 2025	Natural Gas
Agrilectric Power Partners Ltd	Agrilectric Power Partners Ltd	Lake Charles, LA	79 GWh	Jun 1984	Dec 2024	Agricultural By-Products : 98.9% Natural Gas : 1.1%
Ada Dam	Eagle Creek Renewable Energy, LLC	Ada, MI	2 GWh	Feb 1984	Dec 2024	Water
Caterpillar	Caterpillar Inc	Lafayette, IN	23 GWh	Nov 1983	Sep 2025	Natural Gas
Louisa	MidAmerican Energy Co	Muscatine, IA	4 TWh	Sep 1983	Sep 2025	Subbituminous Coal : 99.2% Natural Gas : 0.8%
Independence Steam Electric Station	Entergy Arkansas LLC	Newark, AR	5 TWh	Dec 1982	Sep 2025	Subbituminous Coal : 99.8%
University of Northern Iowa	University of Northern Iowa	Cedar Falls, IA	20 GWh	Oct 1982	Sep 2025	Natural Gas : 76.2% Petroleum Coke : 16.6% Bituminous Coal : 7.1%
Owatonna	City of Owatonna - (MN)	Owatonna, MN	1 GWh	Mar 1982	Dec 2023	Natural Gas
Merom	Hallador Power Company, LLC	Sullivan, IN	5 TWh	Jan 1982	Sep 2025	Bituminous Coal : 99.8%
Belle River	DTE Electric Company	China Twp, MI	8 TWh	Oct 1981	Sep 2025	Subbituminous Coal : 93.6% Natural Gas : 6.0%
Mansfield Mill	IPC-Mansfield Mill	Mansfield, LA	811 GWh	Sep 1981	Sep 2025	Natural Gas : 55.4% Black Liquor : 30.8% Wood/Wood Waste Solids : 11.8% Tire-derived Fuels : 2.0%

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	696.7 GWh	4
#27	Associated Electric Cooperative, Inc.	23.6 TWh	47
#13	Duke Energy Carolinas	112.5 TWh	565
#52	Duke Energy Progress West	4.3 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	34.4 TWh	25
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#5	Southwest Power Pool	299.9 TWh	835
#49	Southwestern Power Administration	5.2 TWh	34
#9	Tennessee Valley Authority	161.6 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	655.1 TWh	2,831
#4	Electric Reliability Council of Texas, Inc.	485.0 TWh	1,313
#5	Southwest Power Pool	299.9 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	188.0 TWh	2,075
#9	Tennessee Valley Authority	161.6 TWh	204
#10	Florida Power & Light Co.	148.9 TWh	187
#12	New York Independent System Operator	131.6 TWh	1,211
#13	Duke Energy Carolinas	112.5 TWh	565