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	Jul 2026
Annual Generation	669.4 TWh
Power Plants	3,038
Utilities	1,345
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% Coal \| 26.5% Wind \| 14.9% Nuclear \| 13.9% Solar \| 5.7% 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
Clinton LFGTE	Wabash Valley Power Assn, Inc	Clinton, IL	16 GWh	Jan 2006	May 2026	Landfill Gas
Hermsdorf Solar	Madison Gas & Electric Co	Madison, WI	16 GWh	Feb 2022	Dec 2025	Solar
Crawfordsville 5 Solar Park	Indiana Municipal Power Agency	Crawfordsville, IN	16 GWh	Aug 2020	Dec 2025	Solar
Pinconning White Feather	Energy Developments, Inc d/b/a EDL	Pinconning, MI	16 GWh	Feb 2009	Dec 2025	Landfill Gas
Whiting	Consolidated Water Power Co	Whiting, WI	16 GWh	Dec 1890	Dec 2025	Water
Loud	Consumers Energy Co - (MI)	Oscoda, MI	16 GWh	Dec 1912	Dec 2025	Water
Ameresco Jefferson City	AMERESCO Jefferson City LLC	Jefferson City, MO	16 GWh	Feb 2009	Dec 2025	Landfill Gas
West Waconia Solar	Enel Green Power NA, Inc.	Norwood Young America, MN	16 GWh	Nov 2016	Dec 2025	Solar
Glendive GT	Montana-Dakota Utilities Co	Glendive, MT	16 GWh	May 1979	Dec 2025	Natural Gas : 98.8% Distillate Fuel Oil : 1.2%
High Falls (WI)	Wisconsin Public Service Corp	Town of Stephenson, WI	16 GWh	Jul 1910	Dec 2025	Water
Adams PV Plant	Adams PV Plant (WI)	Adams, WI	15 GWh	Jun 2023	Dec 2025	Solar
Indy Solar I, LLC	Onward Energy	Indianapolis, IN	15 GWh	Nov 2013	May 2026	Solar
CC Perry K	Citizens Thermal Energy	Indianapolis, IN	15 GWh	Dec 1924	May 2026	Natural Gas
Oakdale	Northern Indiana Pub Serv Co	Monticello, IN	15 GWh	Oct 1925	Feb 2025	Water
Indy Solar II, LLC	Onward Energy	Indianapolis, IN	15 GWh	Nov 2013	May 2026	Solar
Northeast (MI)	DTE Electric Company	Warren, MI	15 GWh	Apr 1966	Dec 2025	Natural Gas : 86.8% Distillate Fuel Oil : 13.2%
Red Lake Falls Community Hybrid	RWE Clean Energy	Red Lake Falls, MN	15 GWh	Nov 2020	Dec 2025	Wind : 95.1% Solar : 4.9%
Stevens Point Mill	Pixelle Specialty Solution, LLC	Stevens Point, WI	14 GWh	Jan 2002	Dec 2025	Natural Gas
James R Smith	City of Marquette - (MI)	Marquette, MI	14 GWh	Dec 1918	Dec 2025	Water
Camp Ripley Solar	Camp Riley Solar Facility	Little Falls, MN	14 GWh	Oct 2016	Dec 2025	Solar
PPG Plant C Caustic	Westlake 2 US LLC	Lake Charles, LA	14 GWh	Sep 1986	Dec 2025	Natural Gas
Neptune Gas Processing Plant	Enterprise Products Optg LP	Centerville, LA	14 GWh	Jan 2004	Dec 2025	Other Fuel
POET Biorefining LLC - Corning	POET Biorefining LLC - Corning	Corning, IA	14 GWh	Sep 2018	Dec 2025	Natural Gas
Hastings City Hydroelectric	Hastings Lock & Dam	Hastings, MN	14 GWh	Dec 1991	Dec 2025	Water
Alexander	Wisconsin Public Service Corp	Merrill, WI	14 GWh	Dec 1924	Dec 2025	Water
Eastridge Wind Project	Eastridge Wind Project	Porter, MN	14 GWh	Mar 2006	Dec 2025	Wind
Hoist	Upper Peninsula Power Company	Negaunee, MI	14 GWh	Jan 1988	Dec 2025	Water
Adelite Solar, LLC	Birch Creek Development	Hamilton, MO	14 GWh	-	May 2026	Solar
Mio	Consumers Energy Co - (MI)	Mio, MI	14 GWh	Dec 1915	Dec 2025	Water
IND Community Solar Farm 1st Phase	Terraform Arcadia	Indianapolis, IN	14 GWh	Oct 2013	Dec 2025	Solar
POET Biorefining-Hanlontown, LLC	POET Biorefining-Hanlontown, LLC	Hanlontown, IA	13 GWh	Dec 2018	Dec 2025	Natural Gas
Indy Solar III, LLC	Onward Energy	Indianapolis, IN	13 GWh	Nov 2013	May 2026	Solar
Crawfordsville 2 Solar Park	Indiana Municipal Power Agency	Crawfordsville, IN	13 GWh	Nov 2019	Dec 2025	Solar
Kimberly Mill	City of Kaukauna (WI)	Appleton, WI	13 GWh	Dec 1925	Dec 2025	Water
Apple River	Northern States Power Co - Minnesota	Somerset, WI	13 GWh	Dec 1900	Dec 2025	Water
Hodag Solar	Wisconsin Public Service Corp	Rhinelander, WI	13 GWh	Dec 2021	Dec 2025	Solar
Lake Pulaski Solar	Enel Green Power NA, Inc.	Buffalo, MN	13 GWh	Nov 2016	Dec 2025	Solar
Franklin County Solar	MidAmerican Energy Co	Hampton, IA	13 GWh	Dec 2021	Dec 2025	Solar
POET Biorefining Caro, LLC	POET Biorefining Caro, LLC	Caro, MI	13 GWh	May 2018	Dec 2025	Natural Gas
Connexus Solar Stanford 1STF	REA Investments, LLC	St. Francis, MN	13 GWh	Apr 2021	Dec 2025	Solar
Delta Solar Power I	Delta Solar Power I, LLC	Grand Ledge, MI	13 GWh	May 2018	Dec 2025	Solar
Norway Point Hydropower Project	Eagle Creek Renewable Energy, LLC	Alpena, MI	13 GWh	Aug 1990	Dec 2025	Water
Fairmont Wind	Southern Minnesota Mun P Agny	Fairmont, MN	13 GWh	Feb 2003	Dec 2025	Wind
Central Generating	North American Central - LLC	Pierson, MI	13 GWh	Aug 2018	Dec 2025	Landfill Gas
Bremen	Indiana Municipal Power Agency	Bremen, IN	13 GWh	Oct 2022	Dec 2025	Solar
Spring Prairie Solar WI, LLC	Wisconsin Electric Power Co	Burlington, WI	13 GWh	Nov 2023	Dec 2025	Solar
Brainerd Public Utilities	Brainerd Public Utilities	Brainerd, MN	13 GWh	Dec 1916	Dec 2025	Water
Venice Resources Gas Recovery	WM Renewable Energy LLC	Lennon, MI	13 GWh	Feb 1992	Dec 2025	Landfill Gas
Indianapolis Motor Speedway Solar PV	Boralex US Operations LLC	Indianapolis, IN	13 GWh	May 2014	Dec 2025	Solar
Dodge Center Solar	Enel Green Power NA, Inc.	Dodge Center, MN	13 GWh	Nov 2016	Dec 2025	Solar
Brule	Wisconsin Electric Power Co	Florence, WI	12 GWh	Dec 1918	Dec 2025	Water
Branch Solar Project	Branch Solar, LLC	Coldwater, MI	12 GWh	-	May 2026	Solar
Appleton	Wisconsin Electric Power Co	Appleton, WI	12 GWh	Jul 1916	Dec 2025	Water
Shaokatan Hills LLC	Shaokatan Hills, LLC (Longroad)	Hendricks, MN	12 GWh	Jul 1999	Dec 2024	Wind
Norway (IN)	Northern Indiana Pub Serv Co	Monticello, IN	12 GWh	May 1923	Dec 2025	Water
Wind Turbine	Madison Gas & Electric Co	Casco, WI	12 GWh	May 1999	Dec 2025	Wind
Oconto Falls Upper	Eagle Creek Renewable Energy, LLC	Oconto Falls, WI	12 GWh	Dec 1917	Dec 2025	Water
Bonduel Solar WI, LLC	Wisconsin Electric Power Co	Bonduel, WI	12 GWh	Nov 2023	Dec 2025	Solar
Spartan PV 1, LLC	NJR Clean Energy Ventures Corporation	East Lansing, MI	12 GWh	Nov 2017	Dec 2024	Solar
Wright Kirby 1-5 CSG	Standard Solar	Monticello, MN	12 GWh	May 2019	Dec 2025	Solar
Lewis & Clark	Montana-Dakota Utilities Co	Richland, MT	12 GWh	Sep 1958	May 2026	Natural Gas
Cisco	ALLETE Clean Energy	Brewster, MN	12 GWh	Jan 2008	Dec 2025	Wind
Jackson Solar WI, LLC	Wisconsin Electric Power Co	Cedarburg, WI	12 GWh	Nov 2023	Dec 2025	Solar
Allegan Dam	Consumers Energy Co - (MI)	Allegan, MI	12 GWh	Dec 1934	Dec 2025	Water
Berlin Landfill Gas	WM Renewable Energy LLC	Berlin, WI	12 GWh	Jul 2001	Dec 2025	Landfill Gas
Annandale Solar	Enel Green Power NA, Inc.	Annandale, MN	12 GWh	Nov 2016	Dec 2025	Solar
Maywood Photovoltaic Project	ENI New Energy US Inc	Indianapolis, IN	11 GWh	Feb 2014	Dec 2024	Solar
Tyto Solar	Madison Gas & Electric Co	Fitchburg, WI	11 GWh	Jan 2024	Dec 2025	Solar
POET Biorefining - Jewell	POET Biorefining - Jewell	Jewell, IA	11 GWh	Feb 2019	Dec 2025	Natural Gas
Pine	Wisconsin Electric Power Co	Florence, WI	11 GWh	May 1922	Dec 2025	Water
Green Cow Power	Green Cow Power LLC	Goshen, IN	11 GWh	Mar 2015	Dec 2025	Other Biomass Gas
Caldron Falls	Wisconsin Public Service Corp	Town of Stephenson, WI	11 GWh	Oct 1924	Dec 2025	Water
POET Biorefining - Hudson	POET Biorefining - Hudson	Hudson, SD	11 GWh	Apr 2019	Dec 2025	Natural Gas
Chisago Solar	Enel Green Power NA, Inc.	North Branch, MN	11 GWh	Nov 2016	Dec 2025	Solar
Scottsburg Solar Park	Indiana Municipal Power Agency	Scottsburg, IN	11 GWh	Sep 2020	Dec 2025	Solar
Tomahawk	Wisconsin Public Service Corp	Tomahawk, WI	11 GWh	Dec 1937	Dec 2025	Water
Eastwood Solar	Enel Green Power NA, Inc.	Mankato, MN	11 GWh	Nov 2016	Dec 2025	Solar
Tazewell Gas Recovery	WM Illinois Renewable Energy LLC	East Peoria, IL	11 GWh	Jun 1989	Dec 2025	Landfill Gas
Johnson Falls	Wisconsin Public Service Corp	Town of Stephenson, WI	11 GWh	Jun 1923	Dec 2025	Water
IMPA Richmond 8 Solar Park	Indiana Municipal Power Agency	Richmond, IN	10 GWh	Nov 2024	Dec 2025	Solar
Byrne Solar, LLC	Byrne Solar, LLC	Lowell, MI	10 GWh	Sep 2023	Dec 2025	Solar
Veolia (Gum Springs)	Today's Power, Inc.	Arkadelphia, AR	10 GWh	Jul 2024	Dec 2025	Solar
LaFayette Solar WI, LLC	Wisconsin Electric Power Co	Elkhorn, WI	10 GWh	Nov 2024	Dec 2025	Solar
Michelangelo Wind 1 LLC	Novis Renewables, LLC	Huxley, IA	10 GWh	Feb 2017	Dec 2025	Wind
Adams Wind Farm	Justin McNeilus	Adams, MN	10 GWh	Aug 2003	May 2025	Wind
West Faribault Solar	Enel Green Power NA, Inc.	Faribault, MN	10 GWh	Nov 2016	Dec 2025	Solar
Sylvan	ALLETE, Inc.	Pillager, MN	10 GWh	Dec 1912	Dec 2025	Water
Athens MN CONX	SoCore Energy LLC	Athens, MN	10 GWh	Nov 2018	Dec 2025	Solar
Brainerd Airport	Onsite Partners, LLC	Brainerd, MN	10 GWh	Nov 2022	Dec 2024	Solar
Tatanka Wi	HQC Tatanka Wi Solar Power Generation LLC	Buffalo, MN	10 GWh	Nov 2017	Dec 2025	Solar
Michelangelo Wind 4 LLC	Novis Renewables, LLC	Ames, IA	10 GWh	Nov 2016	Dec 2025	Wind
Ledgeview	Greenbacker Renewable Energy Corporation	Fond du Lac, WI	10 GWh	Jul 2024	Dec 2025	Solar
Dayton Hydro	Eagle Creek Renewable Energy, LLC	Ottawa, IL	10 GWh	Dec 1924	Dec 2025	Water
Michelangelo Wind 3 LLC	Michelangelo Wind 3 LLC	Huxley, IA	10 GWh	Jan 2017	Dec 2025	Wind
GL Wind	GL Wind LLC	Lewiston, MN	10 GWh	Nov 2011	Dec 2025	Wind
Cashton Greens Wind Farm	Cashton Greens Wind Farm LLC	Cashton, WI	10 GWh	Apr 2012	Dec 2025	Wind
Linton	Indiana Municipal Power Agency	Linton, IN	10 GWh	Jun 2022	Dec 2025	Solar
Sandstone Rapids	Wisconsin Public Service Corp	Town of Stephenson, WI	10 GWh	Dec 1924	Dec 2025	Water
Montevideo Solar LLC, CSG	Montevideo Solar LLC	Montevideo, MN	10 GWh	Dec 2018	Dec 2025	Solar
Menominee Mill Marinette	Eagle Creek Renewable Energy, LLC	Menominee, MI	10 GWh	Dec 1923	May 2026	Water

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	442.5 GWh	4
#26	Associated Electric Cooperative, Inc.	23.4 TWh	47
#13	Duke Energy Carolinas	112.6 TWh	577
#50	Duke Energy Progress West	4.5 TWh	15
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	33.9 TWh	25
#1	PJM Interconnection, LLC	882.8 TWh	2,652
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#5	Southwest Power Pool	306.8 TWh	856
#53	Southwestern Power Administration	4.1 TWh	34
#9	Tennessee Valley Authority	163.4 TWh	207

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	882.8 TWh	2,652
#2	Midcontinent Independent System Operator, Inc.	669.4 TWh	3,038
#3	Electric Reliability Council of Texas, Inc.	494.1 TWh	1,471
#5	Southwest Power Pool	306.8 TWh	856
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#7	California Independent System Operator	169.4 TWh	2,135
#9	Tennessee Valley Authority	163.4 TWh	207
#10	Florida Power & Light Co.	152.2 TWh	187
#12	New York Independent System Operator	134.3 TWh	1,299
#13	Duke Energy Carolinas	112.6 TWh	577