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
Volkman Road Solar Array Hybrid	Southern Indiana Gas & Elec Co	Evansville, IN	3 GWh	Oct 2018	Dec 2025	Solar
Bos Dairy, LLC	Bos Dairy, LLC	Fair Oaks, IN	7 GWh	Dec 2004	Dec 2025	Natural Gas
Herrema Dairy	Herrema Dairy, LLC	Fair Oaks, IN	7 GWh	Mar 2022	Jan 2025	Natural Gas
Fairbanks Solar Project	Fairbanks Solar Energy Center LLC	Fairbanks, IN	510 GWh	Apr 2025	May 2026	Solar
Fairfax	City of Fairfax - (MN)	Fairfax, MN	6 MWh	Jul 2001	Dec 2025	Distillate Fuel Oil
Fairmont Wind	Southern Minnesota Mun P Agny	Fairmont, MN	13 GWh	Feb 2003	Dec 2025	Wind
Fairmont (MN)	Southern Minnesota Mun P Agny	Fairmont, MN	8 GWh	Dec 1974	Dec 2025	Natural Gas : 98.8% Distillate Fuel Oil : 1.2%
Nortera Customer Hosted Solar	Wisconsin Power & Light Co	Fairwater, WI	307 MWh	Jul 2025	Dec 2025	Solar
Marion Garden	Excelsior Energy Capital	Faribault, MN	2 GWh	Oct 2020	Dec 2025	Solar
USS Fair Park Solar LLC (CSG)	United States Solar Corporation	Faribault, MN	2 GWh	Nov 2023	Dec 2025	Solar
Roberds Garden CSG	Roberds Garden LLC	Faribault, MN	2 GWh	Aug 2019	Dec 2024	Solar
Straight Garden Solar	Straight Garden LLC	Faribault, MN	2 GWh	Feb 2020	Dec 2025	Solar
Faribault Energy Park	Minnesota Municipal Power Agny	Faribault, MN	800 GWh	Apr 2005	Dec 2025	Natural Gas
Cannon Garden Solar	Cannon Garden LLC	Faribault, MN	2 GWh	Dec 2019	Dec 2025	Solar
Falls Creek Garden	Falls Creek Garden LLC	Faribault, MN	2 GWh	Jan 2020	Oct 2025	Solar
West Faribault Solar	Enel Green Power NA, Inc.	Faribault, MN	10 GWh	Nov 2016	Dec 2025	Solar
Walcott Solar CSG	Altus Power America Management, LLC	Faribault, MN	8 GWh	Jun 2020	Dec 2025	Solar
Sapphire Sky Wind Energy LLC	Invenergy Services LLC	Farmer City, IL	957 GWh	Nov 2021	May 2026	Wind
Farmer City	City of Farmer City - (IL)	Farmer City, IL	59 MWh	Mar 1951	Dec 2025	Distillate Fuel Oil
Illinois PV Fulton 1 CSG	Illinois PV Fulton 1, LLC	Farmington, IL	4 GWh	May 2020	Nov 2025	Solar
Vermillion River_MN_GRE DEA-GM	SoCore Energy LLC	Farmington, MN	5 GWh	Nov 2019	Dec 2025	Solar
Ursa Community Solar	Ursa Community Solar	Farmington, MN	8 GWh	Dec 2016	Dec 2025	Solar
SunE Feely 1 CSG, LLC	Ecoplexus, Inc	Farmington, MN	8 GWh	Aug 2018	Dec 2025	Solar
Empire Solar	Cypress Creek Renewables	Farmington, MN	6 GWh	Nov 2016	Dec 2025	Solar
FastSun 19 CSG	Altus Power America Management, LLC	Farmington, MN	2 GWh	May 2020	Dec 2025	Solar
Farmington Holdco Solar	Farmington Holdco LLC	Farmington, MN	8 GWh	Jan 2017	Dec 2025	Solar
Dakota Community Solar One LLC CSG	Madison Energy Holdings LLC	Farmington, MN	1 GWh	Nov 2019	Dec 2025	Solar
MSC-Empire01, LLC	MSC-Empire01, LLC	Farmington, MN	2 GWh	Jul 2019	Dec 2024	Solar
Overall Road Station	City of Farmington - (MO)	Farmington, MO	29 MWh	Feb 2003	Dec 2025	Distillate Fuel Oil
Walton Street Substation	City of Farmington - (MO)	Farmington, MO	7 MWh	Dec 2002	Dec 2025	Distillate Fuel Oil
Elm Street Substation Generators	City of Farmington - (MO)	Farmington, MO	16 MWh	Sep 2002	Dec 2025	Distillate Fuel Oil
Bullhead Solar, LLC	Bullhead Solar, LLC	Fayette, MI	4 GWh	Dec 2020	Dec 2025	Solar
USS JJ Clay Solar LLC CSG	Standard Solar	Felton, MN	2 GWh	Sep 2020	Dec 2025	Solar
USS Horne South Solar LLC CSG	Standard Solar	Felton, MN	2 GWh	Sep 2020	Dec 2025	Solar
USS Horne North Solar LLC CSG	Standard Solar	Felton, MN	2 GWh	Sep 2020	Dec 2025	Solar
Fennimore Solar	Green Street Power Partners	Fennimore, WI	5 GWh	Aug 2019	Dec 2025	Solar
Fennimore	City of Fennimore - (WI)	Fennimore, WI	75 MWh	Jan 1952	Dec 2025	Distillate Fuel Oil
Hoot Lake	Otter Tail Power Co	Fergus Falls, MN	4 GWh	Aug 1914	Dec 2025	Water
Hoot Lake Solar	Otter Tail Power Co	Fergus Falls, MN	71 GWh	Jul 2023	May 2026	Solar
PCA, Filer City Mill	PCA, Filer City Mill	Filer City, MI	92 GWh	Dec 1949	May 2026	Natural Gas
TES Filer City Station	TES Filer City Station LP	Filer City, MI	349 GWh	Apr 1990	May 2026	Bituminous Coal : 66.5% Natural Gas : 20.7% Wood/Wood Waste Solids : 12.7%
Tyto Solar	Madison Gas & Electric Co	Fitchburg, WI	11 GWh	Jan 2024	Dec 2025	Solar
Strix Solar	Madison Gas & Electric Co	Fitchburg, WI	9 GWh	Dec 2024	Dec 2025	Solar
O'Brien Solar Fields	Madison Gas & Electric Co	Fitchburg, WI	37 GWh	Apr 2021	Dec 2025	Solar
California Ridge Wind Energy LLC	SunEdison LLC	Fithian, IL	692 GWh	Nov 2012	May 2026	Wind
Genesee Power Station LP	NorthStar Clean Energy	Flint, MI	116 GWh	Nov 1995	Dec 2025	Wood/Wood Waste Solids : 99.9%
Coldwater Solar, LLC	Coldwater Solar, LLC	Flint, MI	4 GWh	Nov 2020	Dec 2025	Solar
Genesee Solar Project	Genesee Solar Energy, LLC	Flint, MI	29 GWh	Nov 2025	May 2026	Solar
Blue Elk VII Solar, LLC	Blue Elk VII Solar, LLC	Flint, MI	21 GWh	Oct 2023	Dec 2025	Solar
IMEA Flora	Illinois Municipal Elec Agency (IL)	Flora, IL	71 MWh	Nov 2000	Dec 2025	Distillate Fuel Oil
Flora Site A	City of Flora - (IL)	Flora, IL	47 MWh	Nov 2001	Dec 2025	Distillate Fuel Oil
Flora Site B	City of Flora - (IL)	Flora, IL	43 MWh	Nov 2001	Dec 2025	Distillate Fuel Oil
Markland	Duke Energy Indiana, LLC	Florence, IN	253 GWh	Dec 1966	Dec 2025	Water
Brule	Wisconsin Electric Power Co	Florence, WI	12 GWh	Dec 1918	Dec 2025	Water
Pine	Wisconsin Electric Power Co	Florence, WI	11 GWh	May 1922	Dec 2025	Water
Twin Falls (WI)	Wisconsin Electric Power Co	Florence, WI	37 GWh	Jun 2016	Dec 2025	Water
Caelum Community Solar	Caelum Community Solar	Foley, MN	3 GWh	Sep 2017	Dec 2025	Solar
Stevens Community Solar LLC	Madison Energy Holdings LLC	Foley, MN	2 GWh	Sep 2020	Dec 2025	Solar
Svihel Community Solar LLC CSG	Svihel Community Solar LLC	Foley, MN	2 GWh	Mar 2021	Dec 2025	Solar
USS Foley Solar LLC	United States Solar Corporation	Foley, MN	2 GWh	Jun 2022	Dec 2025	Solar
Novel Novak Solar LLC CSG	REA Investments, LLC	Foley, MN	1 GWh	Jul 2021	Dec 2025	Solar
Ledgeview	Greenbacker Renewable Energy Corporation	Fond du Lac, WI	10 GWh	Jul 2024	Dec 2025	Solar
ENGIE 2020 ProjectCo-WI1 LLC	ENGIE 2020 ProjectCo-WI1 LLC	Fond Du Lac, WI	2 GWh	Nov 2021	Dec 2025	Solar
Fond du Lac Community Solar	SoCore Energy LLC	Fond Du Lac, WI	2 GWh	Nov 2021	Dec 2025	Solar
South Fond Du Lac	Wisconsin Power & Light Co	Fond du Lac, WI	20 GWh	Apr 1993	Dec 2025	Natural Gas : 99.8%
Blue Sky Green Field Wind Project	Wisconsin Electric Power Co	Fond du Lac, WI	320 GWh	Apr 2008	May 2026	Wind
Pomeroy Wind Farm	MidAmerican Energy Co	Fonda, IA	971 GWh	Nov 2007	May 2026	Wind
Fontanelle	Forward Fontanelle Power, LLC	Fontanelle, IA	5 GWh	Jul 2012	Dec 2025	Wind
Foxtail Wind, LLC	Foxtail Wind, LLC	Forbes, ND	587 GWh	Dec 2019	May 2026	Wind
Ford County Wind Farm LLC	Ford Ridge	Ford County, IL	469 GWh	Feb 2022	May 2026	Wind
Forest City Solar	Green Street Power Partners	Forest City, IA	5 GWh	Aug 2019	Dec 2025	Solar
Winnebago Wind Power Project	Avangrid Power LLC	Forest City, IA	61 GWh	Aug 2008	Dec 2025	Wind
Forest City Light Plant	City of Forest City- (IA)	Forest City, IA	392 MWh	Dec 1945	Dec 2025	Distillate Fuel Oil
Forrest City- Eldridge Road	Greenbacker Renewable Energy Corporation	Forrest City, AR	2 GWh	Mar 2021	Dec 2024	Solar
Woodruff Electric Cooperative	Today's Power, Inc.	Forrest City, AR	2 GWh	Apr 2019	Dec 2025	Solar
Forrest City- Prison Site	Greenbacker Renewable Energy Corporation	Forrest City, AR	2 GWh	Mar 2021	Dec 2024	Solar
Jones Dairy	Wisconsin Electric Power Co	Fort Atkinson, WI	4 GWh	Jun 2021	Dec 2025	Solar
Hackbarth Solar WI, LLC	Wisconsin Electric Power Co	Fort Atkinson, WI	9 GWh	Nov 2024	Dec 2025	Solar
Holliday Creek Solar	MidAmerican Energy Co	Fort Dodge, IA	205 GWh	Jun 2022	May 2026	Solar
Fort Polk (fka Johnson) - Chaffee West	Onyx Asset Services Group	Fort Polk North, LA	750 MWh	Oct 2025	Dec 2025	Solar
Fort Polk (fka Johnson) - Chaffee East	Onyx Asset Services Group	Fort Polk North, LA	644 MWh	Oct 2025	Dec 2025	Solar
Fountain	Altus Power America Management, LLC	Fountain, MN	6 GWh	Oct 2021	Dec 2025	Solar
Colfax	DTE Electric Company	Fowlerville, MI	146 MWh	Oct 1969	Dec 2025	Distillate Fuel Oil
Hardy Hills Solar Energy LLC	Hardy Hills Solar LLC	Frankfort, IN	360 GWh	Feb 2024	May 2026	Solar
Ivanhoe Generation Facility	Orion Engineered Carbons	Franklin, LA	72 GWh	Mar 2023	Dec 2025	Waste Heat
USS Catfish Solar LLC	United States Solar Corporation	Franklin, MN	2 GWh	Dec 2022	Dec 2025	Solar
USS Franklin Solar LLC	United States Solar Corporation	Franklin, MN	2 GWh	Dec 2022	Dec 2025	Solar
Preston Garden (CSG)	Preston Garden LLC	Franklin, MN	2 GWh	Jul 2024	Dec 2025	Solar
Franklin CSG 1	Franklin CSG 1 LLC	Franklin, MN	913 MWh	Jun 2025	Dec 2025	Solar
Metro Gas Recovery	WM Renewable Energy LLC	Franklin, WI	41 GWh	Nov 1985	Dec 2025	Landfill Gas
Sunlight Road Solar	Sunlight Road Solar, LLC	Franklinton, LA	116 GWh	Oct 2024	May 2026	Solar
Iris Solar LLC	Iris Solar LLC	Franklinton, LA	117 GWh	Sep 2022	May 2026	Solar
Adams Road Solar	Wisconsin Electric Power Co	Franksville, WI	6 MWh	Nov 2025	Dec 2025	Solar
Raymond Solar WI, LLC	Wisconsin Electric Power Co	Franksville, WI	8 GWh	Jan 2025	Dec 2025	Solar
Freeburg	Village of Freeburg - (IL)	Freeburg, IL	145 MWh	Jul 1948	Dec 2025	Distillate Fuel Oil
Cedarville (IL)	Generate Capital	Freeport, IL	4 GWh	Apr 2024	Dec 2025	Solar
2662 Freeport Solar 1 CSG	2662 Freeport Solar 1, LLC	Freeport, IL	3 GWh	Nov 2020	Dec 2025	Solar
Michael Solar	SoCore Energy LLC	Freeport, MN	7 GWh	Nov 2017	Dec 2025	Solar
Fermi	DTE Electric Company	Frenchtown Twp, MI	8 TWh	Mar 1966	May 2026	Nuclear
Frontenac Holdco LLC, CSG	Frontenac Holdco LLC	Frontenac, MN	8 GWh	Feb 2019	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