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	677.7 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 \| 6.1% Water \| 1.4% Other Fuel \| 0.5%

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
Hammer CSG	Madison Energy Investments LLC	Clear Lake, MN	6 GWh	Nov 2018	Sep 2025	Solar
CF Novel Solar CSG Gardens Five, LLC	SunStrong Management, LLC	Waseca, MN	6 GWh	Nov 2017	Dec 2025	Solar
K-Brink Windfarm LLC	K-brink Windfarm, LLC	Woodstock, MN	6 GWh	Jan 2003	Dec 2025	Wind
Kramer Solar CSG	Geronimo Power	Hector, MN	6 GWh	Nov 2017	Dec 2025	Solar
PopeSun CSG, LLC	SunStrong Management, LLC	Starbuck, MN	6 GWh	Nov 2017	Dec 2025	Solar
Shamrock Solar LLC	Altus Power America Management, LLC	Black River Falls, WI	6 GWh	Nov 2021	Dec 2025	Solar
Wright Cuddyer CSG	Minnesota Solar CSG 1, LLC	St. Michael, MN	6 GWh	Sep 2018	Dec 2025	Solar
Waterloo Solar (IA)	MidAmerican Energy Co	Waterloo, IA	6 GWh	Feb 2022	Dec 2025	Solar
Barron Solar Array	Onsite Partners, LLC	Barron, WI	6 GWh	Jul 2021	Dec 2025	Solar
Pine Island Solar CSG	Pine Island Holdco, LLC	Pine Island, MN	6 GWh	Jan 2017	Dec 2025	Solar
Teche	Cleco Power LLC	Baldwin, LA	6 GWh	Jun 1953	Sep 2025	Natural Gas
Chalmette Refining LLC	Chalmette Refining LLC	Chalmette, LA	6 GWh	Feb 1990	Dec 2025	Other Fuel
Ninth Street Hydropower Project	Eagle Creek Renewable Energy, LLC	Alpena, MI	6 GWh	Aug 1990	Dec 2025	Water
AES Belleville Solar LLC	AES Distributed Energy	Belleville, IL	6 GWh	Aug 2021	Dec 2025	Solar
Prickett	Upper Peninsula Power Company	Pelkie, MI	6 GWh	Oct 1931	Dec 2025	Water
Green Energy Machine	Green Energy Machine, LLC	Anita, IA	6 GWh	May 2016	Dec 2025	Wind
Way Dam	Wisconsin Electric Power Co	Crystal Falls, MI	6 GWh	Nov 1949	Dec 2025	Water
Lawrence Creek Solar	Enel Green Power NA, Inc.	Shafer, MN	6 GWh	Nov 2016	Dec 2025	Solar
Gibbon Solar	Green Street Power Partners	Gibbon, MN	6 GWh	May 2019	Dec 2025	Solar
Oconto Falls Upper	Eagle Creek Renewable Energy, LLC	Oconto Falls, WI	6 GWh	Dec 1917	Dec 2025	Water
Oconto Falls Lower	Eagle Creek Renewable Energy, LLC	Oconto Falls, WI	6 GWh	Dec 1970	Dec 2025	Water
Windshare LLC	Greenbacker Renewable Energy Corporation	Chandler, MN	6 GWh	Feb 2006	Dec 2025	Wind
Staunton	Cypress Creek Renewables	Brazil, IN	6 GWh	Nov 2018	Dec 2025	Solar
Hazel	Altus Power America Management, LLC	Lanesboro, MN	6 GWh	Oct 2021	Dec 2025	Solar
Iowa Hydro LLC	Zero6 Energy Hydro	Maquoketa, IA	6 GWh	Dec 1923	Jul 2026	Water
Chisago Community Solar	Chisago Community Solar	Taylor Falls, MN	6 GWh	Nov 2016	Dec 2025	Solar
August Wind Farm	August Wind Energy, LLC	Clearfield, IA	6 GWh	Jan 2017	Nov 2025	Wind
Taurus Community Solar	Taurus Community Solar	Montevideo, MN	6 GWh	Feb 2018	Dec 2025	Solar
Fountain	Altus Power America Management, LLC	Fountain, MN	6 GWh	Oct 2021	Dec 2025	Solar
Security	TX LFG Energy, LP	Cleveland, TX	6 GWh	Feb 2003	Dec 2024	Landfill Gas
Carina Community Solar	Carina Community Solar	Zumbro Falls, MN	6 GWh	Jan 2018	Dec 2025	Solar
Cottage Grove Project CSG	Madison Energy Investments LLC	Cottage Grove, MN	6 GWh	Sep 2018	Sep 2025	Solar
Montrose Solar	Enel Green Power NA, Inc.	Montrose, MN	6 GWh	Nov 2016	Dec 2025	Solar
CGSun, LLC Community Solar	SunStrong Management, LLC	Cottage Grove, MN	6 GWh	Nov 2017	Dec 2025	Solar
West Dubuque Solar	Interstate Power and Light Co	Dubuque, IA	6 GWh	Aug 2017	Dec 2025	Solar
Hidden View Dairy, LLC	Hidden View Dairy, LLC	Rensselaer, IN	6 GWh	Jan 2007	Dec 2025	Natural Gas
Worthington	City of Worthington - (MN)	Worthington, MN	6 GWh	Jan 2002	Dec 2025	Wind : 99.3% Distillate Fuel Oil : 0.7%
Goldenrod (IL)	Generate Capital	Viola, IL	6 GWh	Jul 2025	Dec 2025	Solar
Davenport Water Pollution Control Plant	Davenport, City of - (IA)	Davenport, IA	6 GWh	Apr 1995	Dec 2025	Other Biomass Gas : 63.5% Natural Gas : 36.5%
Novel - OYA of Mapleton CSG	NRG MN Community LLC	Mapleton, MN	6 GWh	Jun 2018	Dec 2025	Solar
Rockton	Eagle Creek Renewable Energy, LLC	Rockton, IL	6 GWh	Dec 1928	Dec 2025	Water
Empire Solar	Cypress Creek Renewables	Farmington, MN	6 GWh	Nov 2016	Dec 2025	Solar
Scanlon	ALLETE, Inc.	Scanlon, MN	7 GWh	Dec 1922	Dec 2025	Water
Pillager	ALLETE, Inc.	Pillager, MN	7 GWh	Dec 1916	Dec 2025	Water
Fiber Recovery, Inc.	Fiber Recovery, Inc	Ringle, WI	7 GWh	Dec 2007	Dec 2024	Landfill Gas
Trigen St. Louis	Centerstream STL, LLC	St Louis, MO	7 GWh	May 1999	Jul 2026	Natural Gas
Uilk Wind LLC	RENEW Energy Inc	Pipestone, MN	7 GWh	Dec 2009	Dec 2025	Wind
Birch	Birch Power LLC	Clearfield, IA	7 GWh	Jan 2017	Dec 2025	Wind
Thornapple	Northern States Power Co - Minnesota	Bruce, WI	7 GWh	Dec 1926	Dec 2025	Water
Minnesota River	Minnesota Municipal Power Agny	Chaska, MN	7 GWh	Apr 2001	Jan 2025	Natural Gas
Hat Rapids	Wisconsin Public Service Corp	Rhinelander, WI	7 GWh	May 1923	Dec 2025	Water
Shane's Wind Machine	Shane's Wind Machine LLC	Ruthton, MN	7 GWh	Jun 2006	Jan 2025	Wind
Montgomery County Community Solar Center	Union Electric Co - (MO)	New Florence, MO	7 GWh	Feb 2022	Dec 2025	Solar
Herrema Dairy	Herrema Dairy, LLC	Fair Oaks, IN	7 GWh	Mar 2022	Jan 2025	Natural Gas
Tiller CSG	Madison Energy Investments LLC	Clear Lake, MN	7 GWh	Nov 2018	Sep 2025	Solar
Hwy 14 Holdco Solar CSG	Hwy 14 Holdco, LLC	Byron, MN	7 GWh	Jun 2017	Dec 2025	Solar
Michael Solar	SoCore Energy LLC	Freeport, MN	7 GWh	Nov 2017	Dec 2025	Solar
Bos Dairy, LLC	Bos Dairy, LLC	Fair Oaks, IN	7 GWh	Dec 2004	Dec 2025	Natural Gas
Aries Community Solar	Aries Community Solar	Claremont, MN	7 GWh	Sep 2017	Dec 2025	Solar
Columbia City Solar Park	Indiana Municipal Power Agency	Columbia City, IN	7 GWh	Mar 2021	Dec 2025	Solar
Roseman	Roseman Energy, LLC	Anita, IA	7 GWh	Jan 2017	Dec 2025	Wind
Zeuber	Today's Power, Inc.	Little Rock, AR	7 GWh	Nov 2023	Dec 2025	Solar
Lady Slipper Solar Array CSG	Onsite Partners, LLC	Red Wing, MN	7 GWh	Sep 2019	Dec 2025	Solar
Rice Lake Solar Array	Onsite Partners, LLC	Rice Lake, WI	7 GWh	May 2019	Dec 2025	Solar
Kokomo Solar 1, LLC	NJR Clean Energy Ventures Corporation	Kokomo, IN	7 GWh	Nov 2016	Dec 2025	Solar
St Clair	DTE Electric Company	East China Twp, MI	7 GWh	Jul 1953	Jul 2026	Distillate Fuel Oil : 51.3% Natural Gas : 48.7%
Monticello Project CSG	Madison Energy Investments LLC	Monticello, MN	7 GWh	Oct 2018	Sep 2025	Solar
B.R. Corcoran CSG	Minnesota Solar CSG 19, LLC	Corcoran, MN	7 GWh	Oct 2017	Dec 2025	Solar
Arcadia Solar	Green Street Power Partners	Arcadia, WI	7 GWh	Aug 2019	Dec 2025	Solar
LAC Courte Oreilles Hydroelect	Zero6 Energy Hydro	Winter, WI	7 GWh	Nov 1986	Dec 2025	Water
Richland Center Renewable Energy LLC	Richland Center Renewable Energy LLC	Richland Center, WI	7 GWh	Feb 2013	Dec 2025	Other Biomass Gas
Cottage Grove CSG, LLC	Ecoplexus, Inc	Cottage Grove, MN	7 GWh	Feb 2018	Dec 2025	Solar
Forest Lake Solar CSG	Forest Lake Holdco LLC	Scandia, MN	7 GWh	Jun 2017	Dec 2025	Solar
Tinta Wita 5 MW Solar PV System	Tinta Wita Energy LLC	Welch, MN	7 GWh	Apr 2024	Dec 2025	Solar
Dodge Holdco Solar CSG	Dodge Holdco LLC	Kasson, MN	7 GWh	Jun 2017	Dec 2025	Solar
Rensselaer Solar Site 2	Indiana Municipal Power Agency	Rensselaer, IN	7 GWh	Nov 2018	Dec 2025	Solar
POET Biorefining Lake Crystal	POET Biorefining Lake Crystal	Lake Crystal, MN	7 GWh	Mar 2005	Jul 2026	Natural Gas : 80.4% Distillate Fuel Oil : 19.6%
Optimum Wind 3 LLC	Novis Renewables, LLC	Nevada, IA	7 GWh	Feb 2017	Dec 2025	Wind
Fox CSG, LLC	Ecoplexus, Inc	Taylors Falls, MN	7 GWh	Feb 2018	Dec 2025	Solar
Middleton Airport Solar	Madison Gas & Electric Co	Middleton, WI	7 GWh	Jun 2020	Dec 2025	Solar
Felton CSG PV1-5	Ecoplexus, Inc	Randolph, MN	7 GWh	May 2019	Dec 2025	Solar
Red Wing Community Solar	Terraform Arcadia	Red Wing, MN	7 GWh	Nov 2016	Dec 2025	Solar
B.R. Sauk Rapids CSG	Minnesota Solar CSG 9, LLC	Sauk Rapids, MN	7 GWh	Oct 2017	Dec 2025	Solar
Neal Energy Center Solar	MidAmerican Energy Co	Salix, IA	7 GWh	Jan 2022	Dec 2025	Solar
Wyoming 2 CSG, LLC	Ecoplexus, Inc	Wyoming, MN	8 GWh	Feb 2018	Dec 2025	Solar
Taylors Falls CSG	SoCore Energy LLC	Taylor Falls, MN	8 GWh	Dec 2017	Dec 2025	Solar
REG Juhl Glenville Wind, LLC	REG Juhl Glenville Wind, LLC	Albert Lea, MN	8 GWh	Nov 2020	Dec 2025	Wind
Lahr 1, LLC	SoCore Energy LLC	Wakefield Township, MN	8 GWh	Dec 2017	Dec 2025	Solar
LeSun CSG, LLC	SunStrong Management, LLC	Waterville, MN	8 GWh	Dec 2017	Dec 2025	Solar
WrightSun CSG, LLC	SunStrong Management, LLC	St. Michael, MN	8 GWh	Dec 2017	Dec 2025	Solar
Geneseo	City of Geneseo - (IL)	Geneseo, IL	8 GWh	Jun 1957	Jul 2026	Wind : 71.7% Solar : 21.5% Distillate Fuel Oil : 6.8%
Pine Island Solar	Enel Green Power NA, Inc.	Pine Island, MN	8 GWh	Nov 2016	Dec 2025	Solar
Atwater Solar	Enel Green Power NA, Inc.	Atwater, MN	8 GWh	Nov 2016	Dec 2025	Solar
Sunrise Community Solar	Sunrise Community Solar	North Branch, MN	8 GWh	Nov 2016	Dec 2025	Solar
Rhinelander Mill	Ahlstrom-Munksjo	Rhinelander, WI	8 GWh	Nov 1917	Jul 2026	Water
Webster Holdco Solar CSG	Webster Holdco LLC	Webster, MN	8 GWh	Jun 2017	Dec 2025	Solar
Skyline	SunStrong Management, LLC	Taylorville, IL	8 GWh	Oct 2024	Dec 2025	Solar
Farmington Holdco Solar	Farmington Holdco LLC	Farmington, MN	8 GWh	Jan 2017	Dec 2025	Solar
Corcoran CSG	Altus Power America Management, LLC	Corcoran, MN	8 GWh	Dec 2018	Dec 2025	Solar
Waterville CSG Solar Holdings LLC	Altus Power America Management, LLC	Waterville, MN	8 GWh	Feb 2018	Jul 2026	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	433.0 GWh	4
#26	Associated Electric Cooperative, Inc.	22.9 TWh	47
#13	Duke Energy Carolinas	113.4 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	890.9 TWh	2,806
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#5	Southwest Power Pool	314.5 TWh	876
#53	Southwestern Power Administration	3.5 TWh	37
#9	Tennessee Valley Authority	166.2 TWh	209

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	890.9 TWh	2,806
#2	Midcontinent Independent System Operator, Inc.	677.7 TWh	3,095
#3	Electric Reliability Council of Texas, Inc.	506.3 TWh	1,487
#5	Southwest Power Pool	314.5 TWh	876
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#7	California Independent System Operator	168.7 TWh	2,170
#9	Tennessee Valley Authority	166.2 TWh	209
#10	Florida Power & Light Co.	153.0 TWh	188
#12	New York Independent System Operator	134.1 TWh	1,334
#13	Duke Energy Carolinas	113.4 TWh	578