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	Nov 2025
Annual Generation	655.1 TWh
Power Plants	2,831
Utilities	1,296
Ranked #2 out of 65 in terms of net annual generation
Ranked #2 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 35.7% Coal \| 29% Wind \| 14.9% Nuclear \| 13.9% Solar \| 4.5% Water \| 1.5% Other Fuel \| 0.6%

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Daily Net Generation for Midcontinent Independent System Operator, Inc. for the past 3 Years

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
13 Mile Solar, LLC	13 Mile Solar, LLC	Battle Creek, MI	4 GWh	Nov 2020	Dec 2024	Solar
2662 Freeport Solar 1 CSG	2662 Freeport Solar 1, LLC	Freeport, IL	4 GWh	Nov 2020	Dec 2024	Solar
Briscoe 1A	7th Road Solar 1, LLC (Briscoe 1A)	Tonica, IL	4 GWh	Jan 2023	Dec 2024	Solar
Briscoe 2A	7th Road Solar 2, LLC (Briscoe 2A)	Lostant, IL	5 GWh	Jan 2023	Dec 2024	Solar
Anchor Wind, LLC	Acciona Energy USA Global, LLC	Mechanicsville, IA	6 GWh	Sep 2012	May 2024	Wind
Tatanka Wind Power LLC	Acciona Wind Energy USA LLC	Ashley, ND	465 GWh	Dec 2007	Sep 2025	Wind
Velva Windfarm LLC	Acciona Wind Energy USA LLC	Velva, ND	25 GWh	Nov 2005	Dec 2024	Wind
Apple Canyon Lake Solar	ACM Solar, LLC.	Apple River, IL	3 GWh	Nov 2020	Dec 2024	Solar
ADA Carbon Solutions Red River	ADA Carbon Solutions (Red River), LLC	Coushatta, LA	99 GWh	Jan 2011	Sep 2025	Waste Heat
Ada Cogeneration LP	Ada Cogeneration LLC	Ada, MI	158 GWh	Sep 1990	Dec 2024	Natural Gas
Brown County Wind Turbine	Adams Electric Cooperative	Mount Sterling, IL	1 GWh	Aug 2011	Apr 2024	Wind
Adams PV Plant	Adams PV Plant (WI)	Adams, WI	17 GWh	Jun 2023	Dec 2024	Solar
Lemond Solar	Adapture Renewables, Inc.	Owatonna, MN	9 GWh	May 2017	Dec 2024	Solar
Porter Way Community Solar Garden	AEP Onsite Partners, LLC	Waconia, MN	5 GWh	Jan 2018	Sep 2025	Solar
Galesburg Solar Array	AEP Onsite Partners, LLC	Oquawka, IL	3 GWh	Feb 2020	Dec 2024	Solar
Lady Slipper Solar Array CSG	AEP Onsite Partners, LLC	Red Wing, MN	6 GWh	Sep 2019	Dec 2024	Solar
Spooner Solar Array	AEP Onsite Partners, LLC	Spooner, WI	4 GWh	May 2019	Dec 2024	Solar
Barron Solar Array	AEP Onsite Partners, LLC	Barron, WI	6 GWh	Jul 2021	Dec 2024	Solar
Rice Lake Solar Array	AEP Onsite Partners, LLC	Rice Lake, WI	7 GWh	May 2019	Dec 2024	Solar
Bloomfield Municipal Utilities Solar	AEP Onsite Partners, LLC	Bloomfield, IA	2 GWh	Mar 2019	Dec 2024	Solar
Sherburne Community Solar	AEP Onsite Partners, LLC	Clear Lake, MN	8 GWh	Feb 2018	Sep 2025	Solar
Brainerd Airport	AEP Onsite Partners, LLC	Brainerd, MN	10 GWh	Nov 2022	Dec 2024	Solar
Delta Wind Farm (MS)	AES Clean Energy	Dundee, MS	499 GWh	Mar 2024	Sep 2025	Wind
Morris Solar	AES Clean Energy	Kirksville, MO	171 GWh	-	Sep 2025	Solar
Oak Ridge Solar	AES Clean Energy	Oak Ridge, LA	422 GWh	Nov 2023	Sep 2025	Solar
Calhoun County Solar Project	AES Clean Energy	Sheridan Township, MI	179 GWh	-	Sep 2025	Solar
Valparaiso Solar, LLC	AES Distributed Energy	Valparaiso, IN	1 GWh	Nov 2012	Sep 2024	Solar
Pullman Solar, LLC	AES Distributed Energy	Lee Township, MI	38 GWh	Nov 2022	Dec 2024	Solar
Letts Creek Solar, LLC	AES Distributed Energy	Grass Lake, MI	28 GWh	Nov 2022	Dec 2024	Solar
Cement City Solar, LLC	AES Distributed Energy	Cement City, MI	37 GWh	Dec 2022	Dec 2024	Solar
Hobart Solar, LLC	AES Distributed Energy	Hobart, IN	215 MWh	Oct 2012	Nov 2024	Solar
Waterloo Solar, LLC	AES Distributed Energy	Waterloo, IN	592 MWh	Dec 2011	Dec 2024	Solar
AES Belleville Solar LLC	AES Distributed Energy	Belleville, IL	13 GWh	Aug 2021	Nov 2024	Solar
Georgetown	AES Indiana	Indianapolis, IN	466 GWh	May 2000	Dec 2024	Natural Gas
Harding Street	AES Indiana	Indianapolis, IN	3 TWh	May 1958	Sep 2025	Natural Gas
Hoosier Wind Project LLC	AES Indiana	Goodland, IN	208 GWh	Oct 2009	Dec 2023	Wind
AES Petersburg	AES Indiana	Petersburg, IN	5 TWh	May 1967	Sep 2025	Bituminous Coal : 99.8%
Eagle Valley (IN)	AES Indiana	Martinsville, IN	6 TWh	Nov 1951	Sep 2025	Natural Gas
Warrick	AGC Division of APGI Inc	Newburgh, IN	3 TWh	Mar 1960	Sep 2025	Bituminous Coal : 98.5% Natural Gas : 1.5%
Agrilectric Power Partners Ltd	Agrilectric Power Partners Ltd	Lake Charles, LA	79 GWh	Jun 1984	Dec 2024	Agricultural By-Products : 98.9% Natural Gas : 1.1%
Agriwind	Agriwind Holdings, LLC	Tiskilwa, IL	13 GWh	Jun 2007	Dec 2024	Wind
Rhinelander Mill	Ahlstrom-Munksjo	Rhinelander, WI	6 GWh	Nov 1917	Sep 2025	Water
Mosinee Mill	Ahlstrom-Munksjo NA Specialty Solutions, LLC	Mosinee, WI	118 GWh	Jun 1916	Sep 2025	Black Liquor : 50.7% Bituminous Coal : 21.8% Water : 13.6% Wood/Wood Waste Solids : 6.1% Natural Gas : 3.7% Residual Fuel Oil : 2.3% Sludge Waste : 1.8%
Geismar Cogen	Air Liquide Large Industries U S LP	Geismar, LA	586 GWh	Dec 1999	Dec 2024	Natural Gas
Air Products Port Arthur	Air Products LLC	Port Arthur, TX	998 GWh	Oct 2000	Dec 2024	Natural Gas : 92.8% Other Gas : 7.2%
Alden Road Harvard Solar 1	Alden Road Harvard Solar 1, LLC	Harvard, IL	4 GWh	Nov 2020	Dec 2024	Solar
Odell Wind Farm	Algonquin Power Co	Mountain Lake, MN	773 GWh	Jun 2016	Dec 2024	Wind
Lincoln Heights I	ALLETE Clean Energy	Lake Benton, MN	10 GWh	Apr 2006	Dec 2024	Wind
Lincoln Heights II	ALLETE Clean Energy	Lake Benton, MN	7 GWh	Apr 2006	Dec 2024	Wind
Glen Ullin Energy Center	ALLETE Clean Energy	Glen Ullin, ND	427 GWh	Nov 2019	Sep 2025	Wind
Cisco	ALLETE Clean Energy	Brewster, MN	9 GWh	Jan 2008	Dec 2024	Wind
Lake Benton I	ALLETE Clean Energy	Lake Benton, MN	244 GWh	Jan 1998	Dec 2024	Wind
Storm Lake II	ALLETE Clean Energy	Alta, IA	114 GWh	Mar 1999	Dec 2024	Wind
Storm Lake 1	ALLETE Clean Energy	Alta, IA	85 GWh	Apr 1999	Dec 2024	Wind
Fond Du Lac	ALLETE, Inc.	Duluth, MN	54 GWh	Dec 1923	Dec 2024	Water
Knife Falls	ALLETE, Inc.	Cloquet, MN	10 GWh	Dec 1921	Dec 2024	Water
Prairie River	ALLETE, Inc.	Grand Rapids, MN	2 GWh	Mar 1920	Dec 2024	Water
Bison I Wind Energy Center	ALLETE, Inc.	New Salem, ND	166 GWh	Nov 2010	Dec 2024	Wind
Little Falls (MN)	ALLETE, Inc.	Little Falls, MN	32 GWh	Dec 1905	Dec 2024	Water
Rapids Energy Center	ALLETE, Inc.	Grand Rapids, MN	40 GWh	Dec 1942	Dec 2024	Natural Gas : 77.3% Water : 22.7%
Clay Boswell	ALLETE, Inc.	Cohasset, MN	6 TWh	Jun 1958	Sep 2025	Subbituminous Coal : 99.7%
Winton	ALLETE, Inc.	Winton, MN	10 GWh	Jul 1923	Dec 2024	Water
Taconite Ridge 1 Wind Energy Center	ALLETE, Inc.	Mountain Iron, MN	47 GWh	Apr 2008	Dec 2024	Wind
Thomson	ALLETE, Inc.	Carlton, MN	290 GWh	Dec 1906	Dec 2024	Water
Sylvan	ALLETE, Inc.	Pillager, MN	11 GWh	Dec 1912	Dec 2024	Water
Scanlon	ALLETE, Inc.	Scanlon, MN	7 GWh	Dec 1922	Dec 2024	Water
Blanchard	ALLETE, Inc.	Royalton, MN	82 GWh	Jan 1925	Dec 2024	Water
Syl Laskin	ALLETE, Inc.	Hoyt Lakes, MN	172 GWh	May 1953	Dec 2024	Natural Gas
Pillager	ALLETE, Inc.	Pillager, MN	7 GWh	Dec 1916	Dec 2024	Water
M L Hibbard	ALLETE, Inc.	Duluth, MN	95 GWh	May 1949	Sep 2025	Wood/Wood Waste Solids : 93.3% Subbituminous Coal : 5.9% Natural Gas : 0.8%
Sylvan Solar	ALLETE, Inc.	Pillager, MN	25 GWh	Jun 2023	Dec 2024	Solar
Laskin Solar	ALLETE, Inc.	Hoyt Lakes, MN	8 GWh	Nov 2022	Dec 2024	Solar
Jean Duluth Solar	ALLETE, Inc.	Duluth, MN	2 GWh	Nov 2022	Dec 2024	Solar
Bison 4 Wind Energy Center	ALLETE, Inc.	New Salem, ND	624 GWh	Dec 2014	Dec 2024	Wind
Bison 3 Wind Energy Center	ALLETE, Inc.	New Salem, ND	223 GWh	Nov 2012	Dec 2024	Wind
Bison 2 Wind Energy Center	ALLETE, Inc.	New Salem, ND	219 GWh	Nov 2012	Dec 2024	Wind
Allie L.L.C. (CSG)	Allie L.L.C.	Renville, MN	2 GWh	Jul 2022	Dec 2024	Solar
Rantoul Solar	Altorfer Inc.	Rantoul, IL	3 GWh	Nov 2016	Dec 2024	Solar
FastSun 21 CSG	Altus Power America Management, LLC	St. Cloud, MN	2 GWh	May 2021	Dec 2024	Solar
FastSun 10 CSG	Altus Power America Management, LLC	Zumbrota, MN	2 GWh	Feb 2020	Dec 2024	Solar
FastSun 11 CSG	Altus Power America Management, LLC	Zumbrota, MN	2 GWh	Feb 2020	Dec 2024	Solar
FastSun 14 CSG	Altus Power America Management, LLC	Eagle Lake, MN	2 GWh	Nov 2019	Dec 2024	Solar
FastSun 13 CSG	Altus Power America Management, LLC	Osakis, MN	2 GWh	Nov 2019	Dec 2024	Solar
FastSun 18 CSG	Altus Power America Management, LLC	La Crescent, MN	2 GWh	Dec 2019	Dec 2024	Solar
FastSun 19 CSG	Altus Power America Management, LLC	Farmington, MN	2 GWh	May 2020	Dec 2024	Solar
Helen Solar CSG	Altus Power America Management, LLC	Plato, MN	9 GWh	Jun 2020	Dec 2024	Solar
FastSun 8 CSG	Altus Power America Management, LLC	Courtland, MN	2 GWh	Nov 2019	Dec 2024	Solar
FastSun 2 CSG	Altus Power America Management, LLC	Randolph Township, MN	2 GWh	May 2020	Dec 2024	Solar
FastSun 9 CSG	Altus Power America Management, LLC	Zumbrota, MN	2 GWh	Feb 2020	Dec 2024	Solar
Griffith	Altus Power America Management, LLC	Griffith, IN	3 GWh	Feb 2013	Dec 2024	Solar
FastSun 3 CSG	Altus Power America Management, LLC	Albany, MN	2 GWh	Nov 2019	Dec 2024	Solar
FastSun12 CSG	Altus Power America Management, LLC	Morristown, MN	2 GWh	Jun 2021	Dec 2024	Solar
FastSun 7 CSG	Altus Power America Management, LLC	Stewart, MN	2 GWh	Nov 2019	Dec 2024	Solar
East Chicago	Altus Power America Management, LLC	East Chicago, IN	3 GWh	Feb 2013	Dec 2024	Solar
FastSun 5 CSG	Altus Power America Management, LLC	La Crescent, MN	2 GWh	Dec 2019	Dec 2024	Solar
Walcott Solar CSG	Altus Power America Management, LLC	Faribault, MN	9 GWh	Jun 2020	Dec 2024	Solar
Cedar Falls Solar Farm	Altus Power America Management, LLC	Cedar Falls, IA	2 GWh	Mar 2016	Dec 2024	Solar
FastSun 4 CSG	Altus Power America Management, LLC	Hugo, MN	2 GWh	May 2021	Dec 2024	Solar
FastSun 1 CSG	Altus Power America Management, LLC	Dassel, MN	2 GWh	Nov 2019	Dec 2024	Solar
Northfield Solar CSG	Altus Power America Management, LLC	Northfield, MN	9 GWh	Jun 2020	Dec 2024	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	696.7 GWh	4
#27	Associated Electric Cooperative, Inc.	23.6 TWh	47
#13	Duke Energy Carolinas	112.5 TWh	565
#52	Duke Energy Progress West	4.3 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	34.4 TWh	25
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#5	Southwest Power Pool	299.9 TWh	835
#49	Southwestern Power Administration	5.2 TWh	34
#9	Tennessee Valley Authority	161.6 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	655.1 TWh	2,831
#4	Electric Reliability Council of Texas, Inc.	485.0 TWh	1,313
#5	Southwest Power Pool	299.9 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	188.0 TWh	2,075
#9	Tennessee Valley Authority	161.6 TWh	204
#10	Florida Power & Light Co.	148.9 TWh	187
#12	New York Independent System Operator	131.6 TWh	1,211
#13	Duke Energy Carolinas	112.5 TWh	565