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%

Map of Midcontinent Independent System Operator, Inc.

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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
Prairie Solar LLC	MN8 Energy LLC	Sidney, IL	173 GWh	-	Jul 2026	Solar
Mission Road Solar Park	DTE Electric Company	Rosebush, MI	137 GWh	-	Jul 2026	Solar
Redfield Solar	Redfield PV I, LLC	Sheridan, AR	88 GWh	-	Jul 2026	Solar
Muskegon Solar	Consumers Energy Co - (MI)	Muskegon, MI	180 GWh	-	Jul 2026	Solar
Archtop Solar	Archtop Property Management LLC	Gibson City, IL	178 GWh	-	Jul 2026	Solar
Wheatland	Origis Energy USA, Inc	Wheatland, IN	187 GWh	-	Jul 2026	Solar
Cherry Valley PV I	Cherry Valley PV I, LLC	Cherry Valley, AR	129 GWh	-	Jul 2026	Solar
Casey Fork Solar, LLC	RWE Clean Energy	Texico, IL	38 GWh	-	Jul 2026	Solar
Petersburg Energy Center	Petersburg Energy Center, LLC	Petersburg, IN	220 GWh	-	Jul 2026	Solar
Lotus Wind	Lotus Wind, LLC	Modesto, IL	213 GWh	-	Jul 2026	Wind
Crooked Creek PV I	Crooked Creek PV I, LLC	Salem, IL	92 GWh	-	Jul 2026	Solar
Split Rail Solar Energy LLC	Invenergy Services LLC	Warrenton, MO	171 GWh	-	Jun 2026	Solar
Cooks Mill PV I	Cooks Mill PV I, LLC	Matoon, IL	94 GWh	-	Jul 2026	Solar
Sterlington Solar	Entergy Louisiana LLC	Sterlington, LA	60 GWh	-	Jul 2026	Solar
Mondu Solar LLC	Mondu Solar LLC	Livonia, LA	93 GWh	-	Jul 2026	Solar
Kelso 2 Solar	Kelso 2 Solar, LLC	Benton, MO	165 GWh	-	Jul 2026	Solar
Sherco Solar III	Northern States Power Co - Minnesota	Clear Lake, MN	74 GWh	-	Jul 2026	Solar
Heartwood Solar	Heartwood Solar, LLC	Allen, MI	26 GWh	-	Jun 2026	Solar
Fish Creek Solar Park	DTE Electric Company	Greenville, MI	100 GWh	-	Jul 2026	Solar
Adelite Solar, LLC	Birch Creek Development	Hamilton, MO	20 GWh	-	Jul 2026	Solar
Branch Solar Project	Branch Solar, LLC	Coldwater, MI	83 GWh	-	Jul 2026	Solar
Badger Wind, LLC	Badger Wind , LLC	Northwest McIntosh, ND	523 GWh	-	Jul 2026	Wind
Newton Solar BESS LLC	Vistra Corp	Newton, IL	58 GWh	-	Jul 2026	Solar
Nimbus Wind Farm	Nimbus Wind Farm LLC	Green Forest, AR	13 GWh	-	Jul 2026	Wind
Renegade Solar Energy LLC	Upper Michigan Energy Resources Company	Rock, MI	88 GWh	-	Jul 2026	Solar
Whiting	Consolidated Water Power Co	Whiting, WI	16 GWh	Dec 1890	Dec 2025	Water
Biron	Consolidated Water Power Co	Biron, WI	30 GWh	Dec 1895	Dec 2025	Water
Little Quinnesec Falls Hydro Project	Eagle Creek Renewable Energy, LLC	Niagara, WI	61 GWh	Nov 1900	Dec 2025	Water
Apple River	Northern States Power Co - Minnesota	Somerset, WI	13 GWh	Dec 1900	Dec 2025	Water
Edison Sault	Cloverland Electric Co-op	Sault Ste. Marie, MI	181 GWh	Jun 1901	Dec 2025	Water
Wisconsin Rapids	Consolidated Water Power Co	Wisconsin Rapids, WI	46 GWh	Dec 1902	Dec 2025	Water
Norway (MI)	City of Norway - (MI)	Norway, MI	30 GWh	May 1905	Dec 2025	Water
Little Falls (MN)	ALLETE, Inc.	Little Falls, MN	27 GWh	Dec 1905	Dec 2025	Water
White River (WI)	Northern States Power Co - Minnesota	Ashland, WI	3 GWh	Dec 1906	Dec 2025	Water
Thomson	ALLETE, Inc.	Carlton, MN	198 GWh	Dec 1906	Dec 2025	Water
Webber	Consumers Energy Co - (MI)	Lyons, MI	10 GWh	Dec 1906	Dec 2025	Water
Croton	Consumers Energy Co - (MI)	Newaygo, MI	29 GWh	Dec 1906	Dec 2025	Water
Domtar Paper Company Rothschild	Domtar Paper Company Rothschild	Rothschild, WI	524 MWh	Dec 1909	Dec 2025	Water
Cedar Falls (WI)	Northern States Power Co - Minnesota	Menomonie, WI	31 GWh	Dec 1909	Dec 2025	Water
St Croix Falls	Northern States Power Co - Minnesota	St Croix Falls, WI	80 GWh	Dec 1909	Dec 2025	Water
High Falls (WI)	Wisconsin Public Service Corp	Town of Stephenson, WI	16 GWh	Jul 1910	Dec 2025	Water
Cooke	Consumers Energy Co - (MI)	Oscoda, MI	24 GWh	Dec 1910	Dec 2025	Water
Georgia-Pacific Corp - Nekoosa Mill	Domtar Industries Inc	Nekoosa, WI	153 GWh	Dec 1911	Jul 2026	Natural Gas : 42.7% Black Liquor : 41.6% Water : 15.7%
Five Channels	Consumers Energy Co - (MI)	Oscoda, MI	23 GWh	Dec 1911	Dec 2025	Water
Saxon Falls	Northern States Power Co - Minnesota	Saxon, WI	9 GWh	Dec 1912	Dec 2025	Water
Port Edwards Mill	Domtar Industries Inc	Port Edwards, WI	37 GWh	Dec 1912	Jul 2026	Water
Sylvan	ALLETE, Inc.	Pillager, MN	10 GWh	Dec 1912	Dec 2025	Water
Loud	Consumers Energy Co - (MI)	Oscoda, MI	16 GWh	Dec 1912	Dec 2025	Water
Keokuk	Union Electric Co - (MO)	Keokuk, IA	962 GWh	Jul 1913	Dec 2025	Water
Big Quinnesec 61	Wisconsin Electric Power Co	Iron Mountain, MI	2 GWh	Apr 1914	Dec 2025	Water
Crystal Falls	City of Crystal Falls - (MI)	Crystal Falls, MI	5 GWh	May 1914	Dec 2025	Water
Hoot Lake	Otter Tail Power Co	Fergus Falls, MN	4 GWh	Aug 1914	Dec 2025	Water
Prairie Du Sac	Wisconsin Power & Light Co	Prairie du Sac, WI	153 GWh	Sep 1915	Dec 2025	Water
Mio	Consumers Energy Co - (MI)	Mio, MI	14 GWh	Dec 1915	Dec 2025	Water
Mosinee Mill	Ahlstrom-Munksjo NA Specialty Solutions, LLC	Mosinee, WI	95 GWh	Jun 1916	Jul 2026	Black Liquor : 41.5% Natural Gas : 27.8% Water : 14.2% Bituminous Coal : 10.5% Wood/Wood Waste Solids : 4.7% Sludge Waste : 1.1%
Appleton	Wisconsin Electric Power Co	Appleton, WI	12 GWh	Jul 1916	Dec 2025	Water
Wissota	Northern States Power Co - Minnesota	Chippewa Falls, WI	118 GWh	Dec 1916	Dec 2025	Water
Superior Falls	Northern States Power Co - Minnesota	Ironwood, MI	8 GWh	Dec 1916	Dec 2025	Water
Brainerd Public Utilities	Brainerd Public Utilities	Brainerd, MN	13 GWh	Dec 1916	Dec 2025	Water
Pillager	ALLETE, Inc.	Pillager, MN	7 GWh	Dec 1916	Dec 2025	Water
Merrill	Wisconsin Public Service Corp	Merrill, WI	4 GWh	Feb 1917	Dec 2025	Water
Rhinelander Mill	Ahlstrom-Munksjo	Rhinelander, WI	8 GWh	Nov 1917	Jul 2026	Water
C W Tippy	Consumers Energy Co - (MI)	Wellston, MI	56 GWh	Dec 1917	Dec 2025	Water
Stevens Point	Consolidated Water Power Co	Stevens Point, WI	26 GWh	Dec 1917	Dec 2025	Water
Oconto Falls Upper	Eagle Creek Renewable Energy, LLC	Oconto Falls, WI	6 GWh	Dec 1917	Dec 2025	Water
Foote	Consumers Energy Co - (MI)	Oscoda, MI	28 GWh	Dec 1917	Dec 2025	Water
Grand Rapids	Wisconsin Public Service Corp	Ingalls, MI	35 GWh	May 1918	Dec 2025	Water
St Louis	City of St Louis - (MI)	St. Louis, MI	8 MWh	Dec 1918	Dec 2025	Distillate Fuel Oil
Brule	Wisconsin Electric Power Co	Florence, WI	12 GWh	Dec 1918	Dec 2025	Water
James R Smith	City of Marquette - (MI)	Marquette, MI	14 GWh	Dec 1918	Dec 2025	Water
Packaging of America Tomahawk Mill	PCA-Tomahawk Mill	Tomahawk, WI	113 GWh	Dec 1919	Dec 2025	Wood/Wood Waste Solids : 35.4% Natural Gas : 35.0% Black Liquor : 18.0% Water : 11.0% Other Biomass Solids : 0.6%
Park Mill	Eagle Creek Renewable Energy, LLC	Marinette, WI	4 GWh	Dec 1919	Dec 2025	Water
Prairie River	ALLETE, Inc.	Grand Rapids, MN	2 GWh	Mar 1920	Dec 2025	Water
Danbury Dam	Zero6 Energy Hydro	Danbury, WI	2 GWh	Dec 1920	Dec 2025	Water
Wausau	Wisconsin Public Service Corp	Wausau, WI	24 GWh	Feb 1921	Dec 2025	Water
Potato Rapids	Wisconsin Public Service Corp	Town of Porterfield, WI	4 GWh	Apr 1921	Dec 2025	Water
Big Falls	Northern States Power Co - Minnesota	Glen Fora, WI	27 GWh	Dec 1921	Dec 2025	Water
Knife Falls	ALLETE, Inc.	Cloquet, MN	9 GWh	Dec 1921	Dec 2025	Water
Rogers	Consumers Energy Co - (MI)	Big Rapids, MI	21 GWh	Dec 1921	Dec 2025	Water
Pine	Wisconsin Electric Power Co	Florence, WI	11 GWh	May 1922	Dec 2025	Water
Flambeau Lower Project	Zero6 Energy Hydro	Park Falls, WI	3 GWh	Dec 1922	Dec 2025	Water
Dells	Northern States Power Co - Minnesota	Eau Claire, WI	37 GWh	Dec 1922	Dec 2025	Water
Lanesboro	Lanesboro Public Utility Comm	Lanesboro, MN	140 MWh	Dec 1922	Dec 2025	Water : 88.6% Distillate Fuel Oil : 11.4%
Scanlon	ALLETE, Inc.	Scanlon, MN	7 GWh	Dec 1922	Dec 2025	Water
Norway (IN)	Northern Indiana Pub Serv Co	Monticello, IN	12 GWh	May 1923	Dec 2025	Water
Hat Rapids	Wisconsin Public Service Corp	Rhinelander, WI	7 GWh	May 1923	Dec 2025	Water
Johnson Falls	Wisconsin Public Service Corp	Town of Stephenson, WI	11 GWh	Jun 1923	Dec 2025	Water
Winton	ALLETE, Inc.	Winton, MN	18 GWh	Jul 1923	Dec 2025	Water
Barron	City of Barron - (WI)	Barron, WI	382 MWh	Jul 1923	Dec 2025	Water
Fond Du Lac	ALLETE, Inc.	Duluth, MN	38 GWh	Dec 1923	Dec 2025	Water
Menominee Mill Marinette	Eagle Creek Renewable Energy, LLC	Menominee, MI	9 GWh	Dec 1923	Jul 2026	Water
Iowa Hydro LLC	Zero6 Energy Hydro	Maquoketa, IA	6 GWh	Dec 1923	Jul 2026	Water
International Falls Power	Boise White Paper LLC	International Falls, MN	57 GWh	Dec 1923	Jul 2026	Water
Alcona	Consumers Energy Co - (MI)	Glennie, MI	26 GWh	Dec 1923	Dec 2025	Water
Kingsford	Wisconsin Electric Power Co	Kingsford, MI	26 GWh	Apr 1924	Dec 2025	Water
Twin Cities Hydro LLC	Twin Cities Hydro LLC	St. Paul, MN	97 GWh	Sep 1924	Dec 2025	Water
Caldron Falls	Wisconsin Public Service Corp	Town of Stephenson, WI	11 GWh	Oct 1924	Dec 2025	Water
Remmel	Entergy Arkansas LLC	Malvern, AR	46 GWh	Dec 1924	Dec 2025	Water
Dayton Hydro	Eagle Creek Renewable Energy, LLC	Ottawa, IL	10 GWh	Dec 1924	Dec 2025	Water
Kleber	Tower Kleber Ltd Partnership	Onaway, MI	5 GWh	Dec 1924	Dec 2024	Water

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