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%

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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
Speedway Solar, LLC	Speedway Solar, LLC	Morrison Town, IN	379 GWh	May 2025	May 2026	Solar
Hurricane Creek CSG	SPG IL Hurricane Creek Solar LLC	Carterville, IL	4 GWh	May 2021	Dec 2025	Solar
Spica Community Solar	Spica Community Solar	Lake Lillian, MN	3 GWh	Jul 2017	Dec 2025	Solar
Spring Valley	Spring Valley Pub Utils Comm	Spring Valley, MN	227 MWh	Dec 1951	Dec 2025	Distillate Fuel Oil : 82.2% Natural Gas : 17.8%
Springfield (MN)	Springfield Public Utils Comm - (MN)	Springfield, MN	15 MWh	May 1994	Dec 2025	Distillate Fuel Oil
Carroll Area Wind Farm	SRIV Partnership LLC	Templeton, IA	54 GWh	Dec 2014	Dec 2025	Wind
Saint Marys Hospital Power Plant	St Mary's Hospital	Rochester, MN	55 GWh	Dec 1970	May 2026	Natural Gas : 99.0% Distillate Fuel Oil : 1.0%
St Paul Cogeneration	St Paul Cogeneration LLC	St. Paul, MN	75 GWh	Mar 2003	Dec 2025	Wood/Wood Waste Solids : 82.4% Natural Gas : 17.6%
St. Cloud Hydro	St. Cloud Hydroelectric Generation Facility	St Cloud, MN	46 GWh	May 1988	Dec 2025	Water
St. James Solar (LA)	St. James Solar, LLC	Vacherie, LA	50 GWh	Jan 2023	Dec 2025	Solar
St. Olaf StandBy Generators	St. Olaf College	Northfield, MN	116 MWh	May 1999	Dec 2025	Distillate Fuel Oil
St. Olaf Wind Turbine	St. Olaf College	Northfield, MN	2 GWh	Aug 2006	Dec 2025	Wind
STAG St. Paul Project CSG	STAG St. Paul Community Solar LLC	Saint Paul, MN	1 GWh	Dec 2019	Dec 2025	Solar
Stahl Wind Energy	Stahl Wind Energy, LLC (Longroad)	Pipestone, MN	2 GWh	Nov 2004	Dec 2025	Wind
USS Midtown Solar LLC CSG	Standard Solar	Melrose, MN	2 GWh	Nov 2019	Dec 2025	Solar
USS Milkweed Solar LLC CSG	Standard Solar	Paynesville, MN	2 GWh	May 2020	Dec 2025	Solar
USS Kass Solar LLC	Standard Solar	Garvin, MN	2 GWh	Dec 2020	Dec 2025	Solar
USS KVPV Solar LLC CSG	Standard Solar	Fulton, MN	2 GWh	Sep 2020	Dec 2025	Solar
USS Verde Solar LLC CSG	Standard Solar	Morgan, MN	2 GWh	Sep 2020	Dec 2025	Solar
USS Haven Solar LLC CSG	Standard Solar	St. Cloud, MN	2 GWh	Oct 2019	Dec 2025	Solar
USS Eggo Solar CSG	Standard Solar	Cologne, MN	2 GWh	May 2019	Dec 2025	Solar
USS Solar Way LLC CSG	Standard Solar	Hartland, MN	2 GWh	Oct 2020	Dec 2025	Solar
USS Greenhouse Solar LLC CSG	Standard Solar	Pine Island, MN	927 MWh	Nov 2019	Dec 2025	Solar
USS Flower Solar LLC CSG	Standard Solar	Nicollet, MN	2 GWh	Aug 2020	Dec 2025	Solar
USS JJ Clay Solar LLC CSG	Standard Solar	Felton, MN	2 GWh	Sep 2020	Dec 2025	Solar
USS White Cloud LLC CSG	Standard Solar	St. Cloud, MN	2 GWh	Oct 2019	Dec 2025	Solar
USS Cheyenne Solar LLC CSG	Standard Solar	Chisago City, MN	2 GWh	Nov 2019	Dec 2025	Solar
USS Mayhew Solar LLC CSG	Standard Solar	Sauk Rapids, MN	2 GWh	May 2020	Dec 2025	Solar
USS All In Solar LLC CSG	Standard Solar	Hartland, MN	2 GWh	Sep 2020	Dec 2025	Solar
USS Westeros Solar LLC CSG	Standard Solar	Belle Plaine, MN	2 GWh	May 2020	Dec 2025	Solar
USS Cougar Solar LLC CSG	Standard Solar	Morgan, MN	2 GWh	Aug 2020	Dec 2025	Solar
USS Sunrise Solar LLC CSG	Standard Solar	Taylors Falls, MN	1 GWh	May 2020	Dec 2025	Solar
USS Dot Com Solar LLC CSG	Standard Solar	Morgan, MN	2 GWh	Feb 2021	Dec 2025	Solar
USS King 2 CSG	Standard Solar	Waconia, MN	2 GWh	Jul 2019	Dec 2025	Solar
USS Kost Trail Solar CSG	Standard Solar	North Branch, MN	2 GWh	May 2019	Dec 2025	Solar
USS Lake Patterson Solar CSG	Standard Solar	Cologne, MN	2 GWh	Jul 2019	Dec 2025	Solar
USS Solar Brick	Standard Solar	Standard City, IL	5 GWh	May 2021	Dec 2025	Solar
USS Webster Solar CSG	Standard Solar	Webster, MN	2 GWh	Apr 2019	Dec 2025	Solar
USS Centerfield Solar CSG	Standard Solar	Webster, MN	2 GWh	Oct 2019	Dec 2025	Solar
USS Horne North Solar LLC CSG	Standard Solar	Felton, MN	2 GWh	Sep 2020	Dec 2025	Solar
USS Steamboat Solar LLC CSG	Standard Solar	Morgan, MN	2 GWh	Mar 2021	Dec 2025	Solar
USS B&B Solar LLC CSG	Standard Solar	Morgan, MN	2 GWh	Aug 2020	Dec 2025	Solar
USS DVL Solar CSG	Standard Solar	Waconia, MN	2 GWh	Jul 2019	Dec 2025	Solar
Wright Kirby 1-5 CSG	Standard Solar	Monticello, MN	12 GWh	May 2019	Dec 2025	Solar
USS Buckaroo Solar LLC CSG	Standard Solar	Glydon, MN	2 GWh	Sep 2020	Dec 2025	Solar
USS Christoffer Solar LLC CSG	Standard Solar	Montevideo, MN	2 GWh	Aug 2020	Dec 2025	Solar
USS Horne South Solar LLC CSG	Standard Solar	Felton, MN	2 GWh	Sep 2020	Dec 2025	Solar
Krause CSG	Standard Solar	Renville, MN	2 GWh	Apr 2018	Dec 2025	Solar
USS Solar Sources LLC CSG	Standard Solar	Scandia, MN	2 GWh	Sep 2020	Dec 2025	Solar
USS Turkey Solar LLC CSG	Standard Solar	Atwater, MN	2 GWh	Dec 2019	Dec 2025	Solar
USS Monarch Solar LLC CSG	Standard Solar	Brooten, MN	2 GWh	Nov 2019	Dec 2025	Solar
NL IL - Kiwi	Standard Solar	Pinckneyville, IL	2 GWh	May 2025	Dec 2025	Solar
NE IL - Esmen West	Standard Solar	Pontiac, IL	2 GWh	Aug 2025	Dec 2025	Solar
Lake Hallie	Standard Solar	Chippewa Falls, WI	1 MWh	Nov 2024	Dec 2024	Solar
NL IL - Piatt 1 - East CSG	Standard Solar	De Land, IL	2 GWh	May 2025	Dec 2025	Solar
NL IL - 1875 North Road CSG	Standard Solar	Pontiac, IL	3 GWh	Aug 2025	Dec 2025	Solar
Enterprise MN - Ferche CSG	Standard Solar	Paynesville, MN	35 MWh	Nov 2025	Dec 2025	Solar
Enterprise MN - Buscho CSG	Standard Solar	Owatonna, MN	26 MWh	Nov 2025	Dec 2025	Solar
Star Garden	Star Garden LLC	Starbuck, MN	2 GWh	Jan 2020	Dec 2025	Solar
State Farm	State Farm Insurance	Bloomington, IL	30 MWh	Sep 1996	May 2026	Distillate Fuel Oil
MNDOT Standby Generation	State of Minnesota Department of Administration	St. Paul, MN	51 MWh	Jun 1995	May 2026	Distillate Fuel Oil
Stearns Solar I	Stearns Solar I LLC	Albany, MN	2 GWh	Aug 2019	Dec 2025	Solar
Stoneheart Solar, LLC	Stoneheart Solar, LLC	Saginaw, MI	4 GWh	Nov 2020	Dec 2025	Solar
Straight Garden Solar	Straight Garden LLC	Faribault, MN	2 GWh	Feb 2020	Dec 2025	Solar
Strandness Garden	Strandness Garden LLC	Starbuck, MN	2 GWh	Jan 2020	Dec 2025	Solar
Studenski Community Solar LLC CSG	Studenski Community Solar LLC	Sauk Rapids, MN	2 GWh	Mar 2021	Dec 2025	Solar
Sturgeon Garden	Sturgeon Garden LLC	Goodhue, MN	2 GWh	Nov 2023	Dec 2025	Solar
Stuttgart Solar	Stuttgart Solar, LLC	Stuttgart, AR	149 GWh	Dec 2017	May 2026	Solar
Sugar Creek Wind One LLC	Sugar Creek Wind One LLC	TBD, IL	566 GWh	Oct 2020	May 2026	Wind
Sullivan B Community Solar LLC	Sullivan B Community Solar LLC	Macomb, IL	4 GWh	Nov 2020	Dec 2025	Solar
California Ridge Wind Energy LLC	SunEdison LLC	Fithian, IL	692 GWh	Nov 2012	May 2026	Wind
Sunflower County	Sunflower County Solar Project, LLC	Ruleville, MS	158 GWh	Aug 2022	May 2026	Solar
Sunlight Road Solar	Sunlight Road Solar, LLC	Franklinton, LA	116 GWh	Oct 2024	May 2026	Solar
Sunrise Community Solar	Sunrise Community Solar	North Branch, MN	8 GWh	Nov 2016	Dec 2025	Solar
Becker Solar 2 CSG	SunShare Management	St. Michael, MN	1 GWh	Feb 2019	Dec 2025	Solar
BentonSun LLC	SunShare Management	Norwood Young America, MN	8 GWh	Nov 2016	Dec 2025	Solar
WakeSun LLC	SunShare Management	Cold Spring, MN	5 GWh	Dec 2016	Dec 2025	Solar
Linden 03 CSG	SunShare Management	Belle Plaine, MN	2 GWh	Apr 2020	Dec 2024	Solar
Linden 02 CSG	SunShare Management	Belle Plaine, MN	2 GWh	Apr 2020	Dec 2024	Solar
Linden 01 CSG	SunShare Management	Belle Plaine, MN	2 GWh	Apr 2020	Dec 2024	Solar
Becker Solar 5 CSG	SunShare Management	St. Michael, MN	1 GWh	Feb 2019	Dec 2025	Solar
Becker Solar 4 CSG	SunShare Management	St. Michael, MN	1 GWh	Feb 2019	Dec 2025	Solar
Becker Solar 3 CSG	SunShare Management	St. Michael, MN	1 GWh	Feb 2019	Dec 2025	Solar
Becker Solar CSG	SunShare Management	St. Michael, MN	1 GWh	Feb 2019	Dec 2025	Solar
CF Novel Solar CSG Gardens Seven, LLC	SunStrong Management, LLC	Clear Lake, MN	4 GWh	Nov 2017	Dec 2025	Solar
CF Novel Solar CSG Gardens Eleven, LLC	SunStrong Management, LLC	Mankato, MN	5 GWh	Nov 2017	Dec 2025	Solar
CF Novel Solar CSG Gardens Two, LLC	SunStrong Management, LLC	Minnesota Lake, MN	3 GWh	Nov 2017	Dec 2025	Solar
PopeSun CSG, LLC	SunStrong Management, LLC	Starbuck, MN	6 GWh	Nov 2017	Dec 2025	Solar
CF Novel Solar CSG Gardens Five, LLC	SunStrong Management, LLC	Waseca, MN	6 GWh	Nov 2017	Dec 2025	Solar
LeSun CSG, LLC	SunStrong Management, LLC	Waterville, MN	8 GWh	Dec 2017	Dec 2025	Solar
CGSun, LLC Community Solar	SunStrong Management, LLC	Cottage Grove, MN	6 GWh	Nov 2017	Dec 2025	Solar
WrightSun CSG, LLC	SunStrong Management, LLC	St. Michael, MN	8 GWh	Dec 2017	Dec 2025	Solar
Breezewood	SunStrong Management, LLC	Bloomington, IL	4 GWh	Aug 2024	Dec 2025	Solar
SV CSG Wagner B LLC	SunVest Solar LLC	Baldwin, IL	5 GWh	Nov 2024	Dec 2025	Solar
SV CSG Bishop 1 LLC	SunVest Solar LLC	Herrin, IL	106 MWh	Nov 2025	Dec 2025	Solar
Schmidt CSG 1	SunVest Solar LLC	Belleville, IL	4 GWh	Nov 2024	Dec 2025	Solar
SV CSG Wagner A LLC	SunVest Solar LLC	Sparta, IL	5 GWh	Nov 2024	Dec 2025	Solar
Surbrook Solar, LLC	Surbrook Solar, LLC	Rives Junction, MI	20 GWh	Aug 2024	Dec 2025	Solar
SV CSG AFTON I	SV CSG Afton I, LLC	Afton, MN	2 GWh	Jun 2024	Dec 2025	Solar
SV CSG Barrass Farms II LL	SV CSG Barrass Farms II LLC	Marion, IL	5 GWh	Aug 2023	Dec 2025	Solar

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