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	Jun 2025
Annual Generation	642.8 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 \| 0.4%

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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
Big Falls	Northern States Power Co - Minnesota	Glen Fora, WI	33 GWh	Dec 1921	Dec 2023	Water
Knife Falls	ALLETE, Inc.	Cloquet, MN	9 GWh	Dec 1921	Dec 2023	Water
Rogers	Consumers Energy Co - (MI)	Big Rapids, MI	23 GWh	Dec 1921	Dec 2023	Water
Pine	Wisconsin Electric Power Co	Florence, WI	12 GWh	May 1922	Dec 2023	Water
Flambeau Lower Project	Renewable World Energies LLC	Park Falls, WI	3 GWh	Dec 1922	Dec 2023	Water
Dells	Northern States Power Co - Minnesota	Eau Claire, WI	43 GWh	Dec 1922	Dec 2023	Water
Lanesboro	Lanesboro Public Utility Comm	Lanesboro, MN	3 MWh	Dec 1922	Dec 2023	Distillate Fuel Oil : 66.7% Water : 33.3%
Scanlon	ALLETE, Inc.	Scanlon, MN	6 GWh	Dec 1922	Dec 2023	Water
Hat Rapids	Wisconsin Public Service Corp	Rhinelander, WI	6 GWh	May 1923	Dec 2023	Water
Norway (IN)	Northern Indiana Pub Serv Co	Monticello, IN	14 GWh	May 1923	Dec 2023	Water
Johnson Falls	Wisconsin Public Service Corp	Town of Stephenson, WI	10 GWh	Jun 1923	Dec 2023	Water
Barron	City of Barron - (WI)	Barron, WI	349 MWh	Jul 1923	Dec 2023	Water
Winton	ALLETE, Inc.	Winton, MN	9 GWh	Jul 1923	Dec 2023	Water
Menominee Mill Marinette	Eagle Creek Renewable Energy, LLC	Menominee, MI	12 GWh	Dec 1923	Mar 2025	Water
International Falls Power	Boise White Paper LLC	International Falls, MN	54 GWh	Dec 1923	Mar 2025	Water
Iowa Hydro LLC	Renewable World Energies LLC	Maquoketa, IA	6 GWh	Dec 1923	Mar 2025	Water
Fond Du Lac	ALLETE, Inc.	Duluth, MN	48 GWh	Dec 1923	Dec 2023	Water
Alcona	Consumers Energy Co - (MI)	Glennie, MI	26 GWh	Dec 1923	Dec 2023	Water
Kingsford	Wisconsin Electric Power Co	Kingsford, MI	25 GWh	Apr 1924	Dec 2023	Water
Twin Cities Hydro LLC	Twin Cities Hydro LLC	St. Paul, MN	72 GWh	Sep 1924	Dec 2023	Water
Caldron Falls	Wisconsin Public Service Corp	Town of Stephenson, WI	12 GWh	Oct 1924	Dec 2023	Water
Remmel	Entergy Arkansas LLC	Malvern, AR	40 GWh	Dec 1924	Dec 2023	Water
Dayton Hydro	Eagle Creek Renewable Energy, LLC	Ottawa, IL	11 GWh	Dec 1924	Dec 2023	Water
Sandstone Rapids	Wisconsin Public Service Corp	Town of Stephenson, WI	8 GWh	Dec 1924	Dec 2023	Water
Alexander	Wisconsin Public Service Corp	Merrill, WI	19 GWh	Dec 1924	Dec 2023	Water
Kleber	Tower Kleber Ltd Partnership	Onaway, MI	5 GWh	Dec 1924	Dec 2023	Water
CC Perry K	Citizens Thermal Energy	Indianapolis, IN	12 GWh	Dec 1924	Jun 2024	Natural Gas
Blanchard	ALLETE, Inc.	Royalton, MN	61 GWh	Jan 1925	Dec 2023	Water
Hodenpyl	Consumers Energy Co - (MI)	Mesick, MI	45 GWh	Jun 1925	Dec 2023	Water
Oakdale	Northern Indiana Pub Serv Co	Monticello, IN	20 GWh	Oct 1925	Dec 2023	Water
Kimberly Mill	City of Kaukauna	Appleton, WI	12 GWh	Dec 1925	Dec 2023	Water
Rapide Croche	City of Kaukauna	Kaukana, WI	15 GWh	Dec 1925	Dec 2023	Water
Kilbourn	Wisconsin Power & Light Co	Wisconsin Dells, WI	54 GWh	Jun 1926	Dec 2023	Water
Boise Cascade International Falls	Boise White Paper LLC	International Falls, MN	340 GWh	Dec 1926	Mar 2025	Black Liquor : 63.7% Natural Gas : 22.8% Wood/Wood Waste Solids : 12.1% Sludge Waste : 1.3%
Thornapple	Northern States Power Co - Minnesota	Bruce, WI	2 GWh	Dec 1926	Dec 2023	Water
Trego	Northern States Power Co - Minnesota	Hayward, WI	7 GWh	Dec 1926	Dec 2023	Water
Chalk Hill	Wisconsin Electric Power Co	Stephenson, MI	30 GWh	Apr 1927	Dec 2023	Water
Thief River Falls	City of Thief River Falls	Thief River Falls, MN	3 GWh	Jul 1927	Dec 2023	Water : 99.8%
White Rapids	Wisconsin Electric Power Co	Stephenson, MI	30 GWh	Sep 1927	Dec 2023	Water
Chippewa Falls	Northern States Power Co - Minnesota	Chippewa Falls, WI	59 GWh	Dec 1927	Dec 2023	Water
Marshall (MI)	City of Marshall - (MI)	Marshall, MI	611 MWh	May 1928	Dec 2023	Water
Argyle	City of Argyle - (WI)	Argyle, WI	10 MWh	Dec 1928	Dec 2023	Distillate Fuel Oil : 70.0% Water : 30.0%
Sappi Cloquet Mill	Sappi Cloquet LLC	Cloquet, MN	470 GWh	Dec 1928	Mar 2025	Black Liquor : 66.5% Wood/Wood Waste Solids : 16.8% Natural Gas : 12.1% Water : 3.9%
Rockton	Eagle Creek Renewable Energy, LLC	Rockton, IL	6 GWh	Dec 1928	Dec 2023	Water
Flambeau Crowley Rapids Project	Renewable World Energies LLC	Park Falls, WI	3 GWh	Dec 1929	Dec 2023	Water
Arcadia Electric	City of Arcadia - (WI)	Arcadia, WI	164 MWh	Dec 1929	Dec 2023	Distillate Fuel Oil : 65.3% Natural Gas : 34.7%
Louisiana Sugar Refining	Louisiana Sugar Refining LLC	Gramercy, LA	23 GWh	Aug 1930	Dec 2023	Natural Gas
Victoria Dam	Upper Peninsula Power Company	Rockland, MI	53 GWh	Dec 1930	Dec 2023	Water
Hardy	Consumers Energy Co - (MI)	Newaygo, MI	76 GWh	May 1931	Dec 2023	Water
Ottumwa City of	Ottumwa City of	Ottumwa, IA	5 GWh	Jul 1931	Dec 2023	Water
Osage Dam	Union Electric Co - (MO)	Eldon, MO	176 GWh	Sep 1931	Dec 2023	Water
Prickett	Upper Peninsula Power Company	Pelkie, MI	8 GWh	Oct 1931	Dec 2023	Water
Carpenter	Entergy Arkansas LLC	Hot Springs, AR	151 GWh	Dec 1931	Dec 2023	Water
Saint Marys Falls	USACE-Detroit District	Sault Ste. Marie, MI	163 GWh	Jun 1932	Dec 2023	Water
Granite Falls	City of Granite Falls - (MN)	Granite Falls, MN	604 MWh	Jul 1932	Dec 2023	Water
Cashton	Village of Cashton - (WI)	Cashton, WI	15 MWh	Jul 1932	Dec 2023	Distillate Fuel Oil
Allegan Dam	Consumers Energy Co - (MI)	Allegan, MI	12 GWh	Dec 1934	Dec 2023	Water
Jackson (MO)	City of Jackson - (MO)	Jackson, MO	137 MWh	Dec 1935	Dec 2023	Distillate Fuel Oil : 59.8% Natural Gas : 40.2%
Blooming Prairie	City of Blooming Prairie - (MN)	Blooming Prairie, MN	167 MWh	Apr 1937	Dec 2023	Distillate Fuel Oil
Tomahawk	Wisconsin Public Service Corp	Tomahawk, WI	7 GWh	Dec 1937	Dec 2023	Water
Ubly	Thumb Electric Coop of Mich	Ubly, MI	17 MWh	May 1938	Dec 2023	Distillate Fuel Oil : 77.3% Natural Gas : 22.7%
Truman	City of Truman	Truman, MN	18 MWh	Aug 1938	Dec 2023	Distillate Fuel Oil
Grandfather Falls	Wisconsin Public Service Corp	Irma, WI	76 GWh	Nov 1938	Dec 2023	Water
Anheuser-Busch St Louis	Anheuser-Busch Inc	St. Louis, MO	42 GWh	Dec 1938	Mar 2025	Natural Gas : 92.4% Other Biomass Gas : 7.6%
Cumberland (WI)	City of Cumberland - (WI)	Cumberland, WI	143 MWh	Jul 1939	Dec 2023	Distillate Fuel Oil : 63.4% Natural Gas : 36.6%
Indiana Harbor West	Cleveland Cliffs	East Chicago, IN	229 GWh	Sep 1939	Dec 2023	Natural Gas
Anita	City of Anita - (IA)	Anita, IA	12 MWh	Sep 1939	Dec 2023	Distillate Fuel Oil
Ladysmith Dam	Northern States Power Co - Minnesota	Ladysmith, WI	10 GWh	Dec 1939	Dec 2023	Water
French Island	Northern States Power Co - Minnesota	La Cross, WI	62 GWh	Dec 1939	Mar 2025	Wood/Wood Waste Solids : 46.8% Non-biogenic Municipal Solid Waste : 26.9% Biogenic Municipal Solid Waste : 22.0% Distillate Fuel Oil : 4.0%
Lamoni Municipal Utilities	City of Lamoni - (IA)	Lamoni, IA	135 MWh	Feb 1940	Dec 2023	Distillate Fuel Oil
Bushnell	City of Bushnell - (IL)	Bushnell, IL	36 MWh	May 1940	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%
University of Illinois Abbott Power Plt	University of Illinois	Champaign, IL	235 GWh	Oct 1940	Dec 2023	Natural Gas : 95.7% Bituminous Coal : 4.3%
Kaukauna City Hydro	City of Kaukauna	Kaukauna, WI	28 GWh	Nov 1940	Dec 2023	Water
Kahoka	City of Kahoka	Kahoka, MO	17 MWh	Dec 1940	Dec 2023	Distillate Fuel Oil
McGregor	City of McGregor- (IA)	McGregor, IA	4 MWh	Nov 1941	Dec 2023	Distillate Fuel Oil
CITGO Refinery Powerhouse	CITGO Petroleum Corp	Sulphur, LA	174 GWh	Dec 1941	Dec 2023	Other Gas
Du Bay	Consolidated Water Power Co	Eau Pleine, WI	33 GWh	Dec 1941	Dec 2023	Water
Moline	MidAmerican Energy Co	Moline, IL	22 GWh	Dec 1941	Dec 2023	Water : 99.7%
Clam River Dam	Renewable World Energies LLC	Danbury, WI	5 GWh	Mar 1942	Dec 2023	Water
Rapids Energy Center	ALLETE, Inc.	Grand Rapids, MN	34 GWh	Dec 1942	Dec 2023	Natural Gas : 77.3% Water : 22.7%
Peavy Falls	Wisconsin Electric Power Co	Crystal Falls, MI	51 GWh	Dec 1942	Dec 2023	Water
Melrose	Melrose Public Utilities	Melrose, MN	49 MWh	Jun 1945	Dec 2023	Distillate Fuel Oil
Washington Island	Washington Island El Coop, Inc	Washington Island, WI	9 MWh	Nov 1945	Dec 2023	Distillate Fuel Oil
Forest City Light Plant	City of Forest City- (IA)	Forest City, IA	120 MWh	Dec 1945	Dec 2023	Distillate Fuel Oil
Waterloo	City of Waterloo - (IL)	Waterloo, IL	462 MWh	May 1946	Dec 2023	Natural Gas : 73.4% Distillate Fuel Oil : 26.6%
Sullivan (IL)	City of Sullivan - (IL)	Sullivan, IL	206 MWh	May 1946	Mar 2025	Distillate Fuel Oil
Delano	Delano Municipal Utilities	Delano, MN	38 MWh	Sep 1946	Dec 2023	Distillate Fuel Oil
University of Iowa Main Power Plant	University of Iowa	Iowa City, IA	4 GWh	Dec 1946	Sep 2024	Natural Gas : 51.7% Other Biomass Solids : 19.1% Wood/Wood Waste Solids : 18.4% Bituminous Coal : 10.8%
Hillsdale	Hillsdale Board of Public Wks	Hillsdale, MI	309 MWh	Feb 1947	Dec 2023	Natural Gas : 87.4% Distillate Fuel Oil : 12.6%
Main Street (MI)	Village of Sebewaing - (MI)	Sebewaing, MI	1 MWh	May 1947	Dec 2023	Distillate Fuel Oil
Bellevue	City of Bellevue - (IA)	Bellevue, IA	52 MWh	Jun 1947	Dec 2023	Distillate Fuel Oil
Biron Mill	ND Paper, Inc.	Wisconsin Rapids, WI	186 GWh	Aug 1947	Dec 2023	Natural Gas : 60.2% Subbituminous Coal : 38.6% Bituminous Coal : 1.1%
PPG Riverside	Westlake 2 US LLC	Lake Charles, LA	111 GWh	Aug 1947	Nov 2024	Purchased Steam
Bancroft	Bancroft Municipal Utilities	Bancroft, IA	320 MWh	Dec 1947	Dec 2023	Distillate Fuel Oil
Whiting Refinery	BP PLC	Whiting, IN	445 GWh	Dec 1947	Dec 2023	Other Gas : 84.0% Natural Gas : 16.0%
Alexandria	City of Alexandria - (MN)	Alexandria, MN	34 MWh	Dec 1947	Dec 2023	Distillate Fuel Oil
Wyandotte	Wyandotte Municipal Serv Comm	Wyandotte, MI	75 MWh	Dec 1947	Mar 2025	Distillate Fuel Oil
Sabine River Operations	The Dow Chemical Company	Orange, TX	3 TWh	Dec 1947	Mar 2025	Natural Gas : 99.2% Other Gas : 0.8%
Elk River City of	City of Elk River	Elk River, MN	32 MWh	Feb 1948	Dec 2023	Distillate Fuel Oil

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	734.7 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	858.1 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	858.1 TWh	2,305
#2	Midcontinent Independent System Operator, Inc.	642.8 TWh	2,653
#3	Electric Reliability Council of Texas, Inc.	476.4 TWh	1,139
#5	Southwest Power Pool	297.0 TWh	762
#6	Southern Company Services, Inc. - Trans	252.0 TWh	393
#7	California Independent System Operator	190.4 TWh	1,943
#8	Tennessee Valley Authority	158.8 TWh	170
#10	Florida Power & Light Co.	148.6 TWh	159
#12	New York Independent System Operator	130.6 TWh	1,100
#13	Duke Energy Carolinas	111.4 TWh	556