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	Mar 2026
Annual Generation	659.4 TWh
Power Plants	2,831
Utilities	1,296
Ranked #2 out of 65 in terms of net annual generation
Ranked #2 out of 54 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 36.2% Coal \| 28.4% Wind \| 14.7% Nuclear \| 13.9% Solar \| 4.8% Water \| 1.5% 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
Crossover Wind	Crossover Wind, LLC	Wynne, AR	176 GWh	-	Dec 2025	Wind
Genesee Solar Project	Genesee Solar Energy, LLC	Flint, MI	1 GWh	-	Dec 2025	Solar
Heirloom Solar	Heirloom Solar (Ratts 1 Phase 2 Solar, LLC)	Petersburg, IN	17 GWh	-	Dec 2025	Solar
Winfield Solar	Winfield Solar I, LLC	Winfield, MO	184 GWh	-	Dec 2025	Solar
Speedway Solar, LLC	Speedway Solar, LLC	Morrison Town, IN	214 GWh	-	Dec 2025	Solar
White Tail Solar	White Tail Solar, LLC	Milan, MI	12 GWh	-	Dec 2025	Solar
Quartz Solar, LLC	Quartz Solar, LLC	Wynne, AR	261 GWh	-	Dec 2025	Solar
Shenandoah Hills Wind Farm	MidAmerican Energy Co	Blanchard, IA	27 GWh	-	Dec 2025	Wind
Polaris Solar Park	DTE Electric Company	Ashley, MI	59 GWh	-	Dec 2025	Solar
Forgeview Solar	Forgeview Solar, LLC	Blytheville, AR	15 GWh	-	Dec 2025	Solar
Eldorado Solar I	Sol Systems	Eldorado, IL	308 GWh	-	Dec 2025	Solar
Pleasantville Solar Park	Pleasantville Solar Park LLC	Ipava, IL	28 GWh	-	Dec 2025	Solar
Sebree Solar, LLC - Hybrid	Sebree Solar, LLC	Robards, KY	130 GWh	-	Dec 2025	Solar
Crossroads Solar (IN)	Crossroads Solar, LLC - (IN)	Van Buren Township, IN	6 GWh	-	Dec 2025	Solar
Magnolia Power	Magnolia Power Holdings LLC	Plaquemine, LA	100 GWh	-	Dec 2025	Natural Gas
RATTS 1	Ratts 1 Solar LLC	Petersburg, IN	47 GWh	-	Dec 2025	Solar
Fairbanks Solar Project	Fairbanks Solar Energy Center LLC	Fairbanks, IN	358 GWh	-	Dec 2025	Solar
Posey Solar	Southern Indiana Gas & Elec Co	Mount Vernon, IN	270 GWh	-	Dec 2025	Solar
Wildwood Solar Plant	Wildwood Solar, LLC	Tutwiler, MS	12 GWh	-	Dec 2025	Solar
Unbridled Solar	National Grid Renewables	Robards, KY	280 GWh	-	Dec 2025	Solar
Long Lake Solar, LLC	Long Lake Solar, LLC	West Helena, AR	371 GWh	-	Dec 2025	Solar
Darien Solar	Wisconsin Electric Power Co	Darien, WI	315 GWh	-	Dec 2025	Solar
Green River Solar	Green River Solar, LLC	Guston, KY	271 GWh	-	Dec 2025	Solar
Appleseed Solar	Appleseed Solar, LLC	Logansport, IN	150 GWh	-	Dec 2025	Solar
Morris Solar	AES Clean Energy	Kirksville, MO	238 GWh	-	Dec 2025	Solar
Pine River Solar Park	DTE Electric Company	Alma, MI	78 GWh	-	Dec 2025	Solar
Carpenter Wind Farm LLC	EDP Renewables North America LLC	Remington, IN	61 GWh	-	Dec 2025	Wind
Gibson Solar	Gibson Solar, LLC	Princeton, IN	142 GWh	-	Dec 2025	Solar
Sherco Solar II	Northern States Power Co - Minnesota	Becker, MN	78 GWh	-	Dec 2025	Solar
Richland Township Solar, LLC	Birch Creek Power, LLC	Washburn, IL	75 GWh	-	Dec 2025	Solar
Flat Fork Solar	Flat Fork Solar, LLC	Wheatley, AR	147 GWh	-	Dec 2025	Solar
Panther Creek Wind Project	Greenbacker Renewable Energy Corporation	Pittsfield, IL	134 GWh	-	Dec 2025	Wind
Sauk Solar Park	DTE Electric Company	Union City, MI	209 GWh	-	Dec 2025	Solar
Prosperity Wind	Prosperity Wind, LLC	Deland, IL	678 GWh	-	Dec 2025	Wind
Salt Creek Township Solar, LLC	Birch Creek Power, LLC	Mason City, IL	104 GWh	-	Dec 2025	Solar
Calhoun County Solar Project	AES Clean Energy	Sheridan Township, MI	217 GWh	-	Dec 2025	Solar
Coldwater River Solar	Coldwater River Solar, LLC	Coldwater, MI	52 GWh	-	Dec 2025	Solar
Amite Solar, LLC	Amite Solar, LLC	Roseland, LA	177 GWh	-	Dec 2025	Solar
Envoy Solar, LLC	Birch Creek Power, LLC	Mexico, MO	95 GWh	-	Dec 2025	Solar
Dunns Bridge II Solar	Dunns Bridge II Solar and Storage Generation LLC	San Pierre, IN	796 GWh	-	Dec 2025	Solar
Whiting	Consolidated Water Power Co	Whiting, WI	25 GWh	Dec 1890	Dec 2024	Water
Biron	Consolidated Water Power Co	Biron, WI	31 GWh	Dec 1895	Dec 2024	Water
Little Quinnesec Falls Hydro Project	Eagle Creek Renewable Energy, LLC	Niagara, WI	57 GWh	Nov 1900	Dec 2024	Water
Apple River	Northern States Power Co - Minnesota	Somerset, WI	13 GWh	Dec 1900	Dec 2024	Water
Edison Sault	Cloverland Electric Co-op	Sault Ste. Marie, MI	199 GWh	Jun 1901	Dec 2024	Water
Wisconsin Rapids	Consolidated Water Power Co	Wisconsin Rapids, WI	50 GWh	Dec 1902	Dec 2024	Water
Norway (MI)	City of Norway	Norway, MI	27 GWh	May 1905	Dec 2024	Water
Little Falls (MN)	ALLETE, Inc.	Little Falls, MN	32 GWh	Dec 1905	Dec 2024	Water
White River (WI)	Northern States Power Co - Minnesota	Ashland, WI	4 GWh	Dec 1906	Dec 2024	Water
Thomson	ALLETE, Inc.	Carlton, MN	290 GWh	Dec 1906	Dec 2024	Water
Croton	Consumers Energy Co - (MI)	Newaygo, MI	29 GWh	Dec 1906	Dec 2024	Water
Webber	Consumers Energy Co - (MI)	Lyons, MI	11 GWh	Dec 1906	Dec 2024	Water
Domtar Paper Company Rothschild	Domtar Paper Company Rothschild	Rothschild, WI	3 GWh	Dec 1909	May 2024	Water
St Croix Falls	Northern States Power Co - Minnesota	St Croix Falls, WI	105 GWh	Dec 1909	Dec 2024	Water
Cedar Falls (WI)	Northern States Power Co - Minnesota	Menomonie, WI	34 GWh	Dec 1909	Dec 2024	Water
High Falls (WI)	Wisconsin Public Service Corp	Town of Stephenson, WI	16 GWh	Jul 1910	Dec 2024	Water
Cooke	Consumers Energy Co - (MI)	Oscoda, MI	25 GWh	Dec 1910	Dec 2024	Water
Georgia-Pacific Corp - Nekoosa Mill	Domtar Industries Inc	Nekoosa, WI	179 GWh	Dec 1911	Dec 2025	Black Liquor : 43.4% Natural Gas : 42.5% Water : 14.1%
Five Channels	Consumers Energy Co - (MI)	Oscoda, MI	23 GWh	Dec 1911	Dec 2024	Water
Port Edwards Mill	Domtar Industries Inc	Port Edwards, WI	37 GWh	Dec 1912	Dec 2025	Water
Sylvan	ALLETE, Inc.	Pillager, MN	11 GWh	Dec 1912	Dec 2024	Water
Saxon Falls	Northern States Power Co - Minnesota	Saxon, WI	8 GWh	Dec 1912	Dec 2024	Water
Loud	Consumers Energy Co - (MI)	Oscoda, MI	17 GWh	Dec 1912	Dec 2024	Water
Keokuk	Union Electric Co - (MO)	Keokuk, IA	888 GWh	Jul 1913	Dec 2024	Water
Big Quinnesec 61	Wisconsin Electric Power Co	Iron Mountain, MI	4 GWh	Apr 1914	Dec 2024	Water
Crystal Falls	City of Crystal Falls	Crystal Falls, MI	5 GWh	May 1914	Dec 2024	Water
Hoot Lake	Otter Tail Power Co	Fergus Falls, MN	3 GWh	Aug 1914	Dec 2024	Water
Prairie Du Sac	Wisconsin Power & Light Co	Prairie du Sac, WI	144 GWh	Sep 1915	Dec 2024	Water
Mio	Consumers Energy Co - (MI)	Mio, MI	14 GWh	Dec 1915	Dec 2024	Water
Mosinee Mill	Ahlstrom-Munksjo NA Specialty Solutions, LLC	Mosinee, WI	118 GWh	Jun 1916	Dec 2025	Black Liquor : 51.4% Bituminous Coal : 14.4% Water : 12.5% Natural Gas : 12.1% Wood/Wood Waste Solids : 6.3% Residual Fuel Oil : 1.7% Sludge Waste : 1.6%
Appleton	Wisconsin Electric Power Co	Appleton, WI	6 GWh	Jul 1916	Dec 2024	Water
Superior Falls	Northern States Power Co - Minnesota	Ironwood, MI	7 GWh	Dec 1916	Dec 2024	Water
Wissota	Northern States Power Co - Minnesota	Chippewa Falls, WI	136 GWh	Dec 1916	Dec 2024	Water
Brainerd Public Utilities	Brainerd Public Utilities	Brainerd, MN	11 GWh	Dec 1916	Dec 2023	Water
Pillager	ALLETE, Inc.	Pillager, MN	7 GWh	Dec 1916	Dec 2024	Water
Merrill	Wisconsin Public Service Corp	Merrill, WI	4 GWh	Feb 1917	Dec 2024	Water
Rhinelander Mill	Ahlstrom-Munksjo	Rhinelander, WI	6 GWh	Nov 1917	Dec 2025	Water
C W Tippy	Consumers Energy Co - (MI)	Wellston, MI	54 GWh	Dec 1917	Dec 2024	Water
Oconto Falls Upper	Eagle Creek Renewable Energy, LLC	Oconto Falls, WI	6 GWh	Dec 1917	Dec 2024	Water
Foote	Consumers Energy Co - (MI)	Oscoda, MI	27 GWh	Dec 1917	Dec 2024	Water
Stevens Point	Consolidated Water Power Co	Stevens Point, WI	29 GWh	Dec 1917	Dec 2024	Water
Grand Rapids	Wisconsin Public Service Corp	Ingalls, MI	32 GWh	May 1918	Dec 2024	Water
James R Smith	City of Marquette - (MI)	Marquette, MI	13 GWh	Dec 1918	Dec 2024	Water
St Louis	City of St Louis - (MI)	St. Louis, MI	29 MWh	Dec 1918	Dec 2024	Water : 75.9% Distillate Fuel Oil : 24.1%
Brule	Wisconsin Electric Power Co	Florence, WI	16 GWh	Dec 1918	Dec 2024	Water
Park Mill	Eagle Creek Renewable Energy, LLC	Marinette, WI	9 GWh	Dec 1919	Dec 2024	Water
Packaging of America Tomahawk Mill	PCA-Tomahawk Mill	Tomahawk, WI	111 GWh	Dec 1919	Dec 2024	Wood/Wood Waste Solids : 35.7% Natural Gas : 34.2% Black Liquor : 18.1% Water : 11.7%
Prairie River	ALLETE, Inc.	Grand Rapids, MN	2 GWh	Mar 1920	Dec 2024	Water
Danbury Dam	Renewable World Energies LLC	Danbury, WI	3 GWh	Dec 1920	Dec 2024	Water
Wausau	Wisconsin Public Service Corp	Wausau, WI	19 GWh	Feb 1921	Dec 2024	Water
Potato Rapids	Wisconsin Public Service Corp	Town of Porterfield, WI	4 GWh	Apr 1921	Dec 2024	Water
Rogers	Consumers Energy Co - (MI)	Big Rapids, MI	16 GWh	Dec 1921	Dec 2024	Water
Big Falls	Northern States Power Co - Minnesota	Glen Fora, WI	36 GWh	Dec 1921	Dec 2024	Water
Knife Falls	ALLETE, Inc.	Cloquet, MN	10 GWh	Dec 1921	Dec 2024	Water
Pine	Wisconsin Electric Power Co	Florence, WI	10 GWh	May 1922	Dec 2024	Water
Flambeau Lower Project	Renewable World Energies LLC	Park Falls, WI	3 GWh	Dec 1922	Dec 2024	Water
Dells	Northern States Power Co - Minnesota	Eau Claire, WI	42 GWh	Dec 1922	Dec 2024	Water
Scanlon	ALLETE, Inc.	Scanlon, MN	7 GWh	Dec 1922	Dec 2024	Water
Lanesboro	Lanesboro Public Utility Comm	Lanesboro, MN	184 MWh	Dec 1922	Dec 2024	Water : 81.0% Distillate Fuel Oil : 19.0%
Hat Rapids	Wisconsin Public Service Corp	Rhinelander, WI	6 GWh	May 1923	Dec 2024	Water

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#60	Alcoa Power Generating, Inc. - Yadkin Division	610.0 GWh	4
#27	Associated Electric Cooperative, Inc.	24.1 TWh	47
#13	Duke Energy Carolinas	112.4 TWh	565
#52	Duke Energy Progress West	4.3 TWh	10
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.3 TWh	25
#1	PJM Interconnection, LLC	879.0 TWh	2,465
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#5	Southwest Power Pool	300.1 TWh	835
#51	Southwestern Power Administration	4.8 TWh	34
#9	Tennessee Valley Authority	162.4 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	879.0 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	659.4 TWh	2,831
#3	Electric Reliability Council of Texas, Inc.	484.9 TWh	1,313
#5	Southwest Power Pool	300.1 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	179.9 TWh	2,075
#9	Tennessee Valley Authority	162.4 TWh	204
#10	Florida Power & Light Co.	150.5 TWh	187
#12	New York Independent System Operator	134.0 TWh	1,211
#13	Duke Energy Carolinas	112.4 TWh	565