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 2024
Annual Generation	631.0 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 \| 39.8% Coal \| 26.3% Wind \| 15.6% Nuclear \| 14% Solar \| 2.1% 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
Thornapple	Northern States Power Co - Minnesota	Bruce, WI	2 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	469 GWh	Dec 1928	Aug 2024	Black Liquor : 66.0% Wood/Wood Waste Solids : 17.6% Natural Gas : 11.4% Water : 4.3% Sludge Waste : 0.6%
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	40 GWh	Dec 1938	Aug 2024	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	59 GWh	Dec 1939	Aug 2024	Wood/Wood Waste Solids : 52.3% Non-biogenic Municipal Solid Waste : 25.5% Biogenic Municipal Solid Waste : 20.8% Distillate Fuel Oil : 1.1%
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
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%
CITGO Refinery Powerhouse	CITGO Petroleum Corp	Sulphur, LA	174 GWh	Dec 1941	Dec 2023	Other Gas
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
Sullivan (IL)	City of Sullivan - (IL)	Sullivan, IL	214 MWh	May 1946	Aug 2024	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%
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	49 GWh	Dec 1946	Feb 2023	Natural Gas : 56.3% Bituminous Coal : 21.0% Wood/Wood Waste Solids : 13.4% Other Biomass Solids : 9.4%
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
PPG Riverside	Westlake 2 US LLC	Lake Charles, LA	98 GWh	Aug 1947	Aug 2024	Purchased Steam
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%
Alexandria	City of Alexandria - (MN)	Alexandria, MN	34 MWh	Dec 1947	Dec 2023	Distillate Fuel Oil
Sabine River Operations	The Dow Chemical Company	Orange, TX	2 TWh	Dec 1947	Aug 2024	Natural Gas : 99.6%
Whiting Refinery	BP PLC	Whiting, IN	445 GWh	Dec 1947	Dec 2023	Other Gas : 84.0% Natural Gas : 16.0%
Bancroft	Bancroft Municipal Utilities	Bancroft, IA	320 MWh	Dec 1947	Dec 2023	Distillate Fuel Oil
Wyandotte	Wyandotte Municipal Serv Comm	Wyandotte, MI	82 MWh	Dec 1947	Aug 2024	Distillate Fuel Oil
Elk River City of	City of Elk River	Elk River, MN	32 MWh	Feb 1948	Dec 2023	Distillate Fuel Oil
Little Chute	City of Kaukauna	Combined Locks, WI	20 GWh	May 1948	Dec 2023	Water
Freeburg	Village of Freeburg - (IL)	Freeburg, IL	230 MWh	Jul 1948	Dec 2023	Distillate Fuel Oil
Wilmarth	Northern States Power Co - Minnesota	Mankato, MN	106 GWh	Aug 1948	Aug 2024	Non-biogenic Municipal Solid Waste : 54.3% Biogenic Municipal Solid Waste : 44.4% Natural Gas : 1.4%
Lenox	City of Lenox - (IA)	Lenox, IA	12 MWh	Aug 1948	Dec 2023	Distillate Fuel Oil
Carmi	City of Carmi - (IL)	Carmi, IL	47 MWh	Nov 1948	Dec 2023	Distillate Fuel Oil
Bay Front	Northern States Power Co - Minnesota	Ashland, WI	155 GWh	Dec 1948	Dec 2023	Tire-derived Fuels : 51.6% Wood/Wood Waste Solids : 48.2%
Preston (MN)	Preston Public Utilities Comm	Preston, MN	130 MWh	Dec 1948	Dec 2023	Natural Gas : 83.1% Distillate Fuel Oil : 16.9%
Stiles	Oconto Electric Cooperative	Oconto Falls, WI	5 GWh	Feb 1949	Dec 2023	Water
Peru (IN)	City of Peru - (IN)	Peru, IN	1 MWh	May 1949	Dec 2023	Distillate Fuel Oil
M L Hibbard	ALLETE, Inc.	Duluth, MN	70 GWh	May 1949	Aug 2024	Wood/Wood Waste Solids : 86.7% Subbituminous Coal : 12.2% Natural Gas : 1.1%
Trenton Channel	DTE Electric Company	Trenton, MI	575 GWh	May 1949	Dec 2022	Subbituminous Coal : 90.0% Bituminous Coal : 9.4% Distillate Fuel Oil : 0.6%
Caro	Thumb Electric Coop of Mich	Caro, MI	6 MWh	Jul 1949	Dec 2023	Distillate Fuel Oil
Petenwell	Wisconsin River Power Company	Necedah, WI	96 GWh	Jul 1949	Dec 2023	Water
Pulliam	Wisconsin Public Service Corp	Green Bay, WI	55 GWh	Aug 1949	Aug 2024	Natural Gas
Red Wing	Northern States Power Co - Minnesota	Red Wing, MN	121 GWh	Sep 1949	Aug 2024	Non-biogenic Municipal Solid Waste : 53.8% Biogenic Municipal Solid Waste : 44.0% Wood/Wood Waste Solids : 1.5% Natural Gas : 0.7%
Big Quinnesec 92	Wisconsin Electric Power Co	Iron Mountain, MI	100 GWh	Oct 1949	Dec 2023	Water
Way Dam	Wisconsin Electric Power Co	Crystal Falls, MI	6 GWh	Nov 1949	Dec 2023	Water
Holcombe	Northern States Power Co - Minnesota	Holcombe, WI	94 GWh	Dec 1949	Dec 2023	Water
PCA, Filer City Mill	PCA, Filer City Mill	Filer City, MI	97 GWh	Dec 1949	Aug 2024	Natural Gas
Frank Jenkins	City of Portland - (MI)	Portland, MI	101 MWh	Apr 1950	Dec 2023	Distillate Fuel Oil : 79.0% Natural Gas : 21.0%
Castle Rock	Wisconsin River Power Company	Adams, WI	76 GWh	Jul 1950	Dec 2023	Water
Noblesville	Duke Energy Indiana, LLC	Noblesville, IN	1 TWh	Aug 1950	Dec 2023	Natural Gas
Wells IC	City of Wells - (MN)	Wells, MN	128 MWh	Oct 1950	Dec 2023	Natural Gas : 62.7% Distillate Fuel Oil : 37.3%
Kaukauna Paper Mill	Thilmany LLC	Kaukauna, WI	123 GWh	Dec 1950	Aug 2024	Black Liquor : 57.9% Natural Gas : 42.1%
CII Carbon LLC	CII Carbon LLC	Chalmette, LA	8 GWh	Dec 1950	Jun 2024	Waste Heat
Flambeau Hydroelectric Station	Dairyland Power Coop	Ladysmith, WI	61 GWh	Dec 1950	Dec 2023	Water
Rantoul	Village of Rantoul - (IL)	Rantoul, IL	120 MWh	Dec 1950	Aug 2024	Distillate Fuel Oil
Franklin Heating Station	Franklin Heating Station	Rochester, MN	57 GWh	Dec 1950	Aug 2024	Natural Gas : 72.6% Purchased Steam : 25.6% Distillate Fuel Oil : 1.8%
Elk River	Great River Energy	Elk River, MN	47 GWh	Dec 1950	Aug 2024	Natural Gas : 99.8%
Battle Creek Mill	RockTenn-Battle Creek Mill	Battle Creek, MI	4 GWh	Dec 1950	Dec 2023	Natural Gas
Summit Lake	Central Iowa Power Cooperative	Creston, IA	72 GWh	Feb 1951	Dec 2023	Natural Gas
Cascade	Cascade Municipal Utilities	Cascade, IA	3 MWh	Mar 1951	Dec 2023	Distillate Fuel Oil
Farmer City	City of Farmer City - (IL)	Farmer City, IL	36 MWh	Mar 1951	Dec 2023	Distillate Fuel Oil
Edgewater	Wisconsin Power & Light Co	Sheboygan, WI	2 TWh	Jun 1951	Aug 2024	Subbituminous Coal : 99.8%
Ogden	City of Ogden - (IA)	Ogden, IA	5 MWh	Jun 1951	Dec 2023	Distillate Fuel Oil

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	894.0 GWh	4
#26	Associated Electric Cooperative, Inc.	22.7 TWh	47
#13	Duke Energy Carolinas	110.9 TWh	556
#51	Duke Energy Progress West	4.1 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	33.2 TWh	20
#1	PJM Interconnection, LLC	843.8 TWh	2,305
#21	Public Service Company of Colorado	45.1 TWh	201
#5	Southwest Power Pool	290.4 TWh	762
#53	Southwestern Power Administration	3.5 TWh	31
#9	Tennessee Valley Authority	157.5 TWh	170

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	843.8 TWh	2,305
#2	Midcontinent Independent System Operator, Inc.	631.0 TWh	2,653
#3	Electric Reliability Council of Texas, Inc.	461.0 TWh	1,139
#5	Southwest Power Pool	290.4 TWh	762
#6	Southern Company Services, Inc. - Trans	247.9 TWh	393
#7	California Independent System Operator	191.5 TWh	1,943
#9	Tennessee Valley Authority	157.5 TWh	170
#10	Florida Power & Light Co.	147.7 TWh	159
#12	New York Independent System Operator	130.0 TWh	1,100
#13	Duke Energy Carolinas	110.9 TWh	556