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
SCS American Bottoms 009885 Sauget, LLC	Arevon Energy, Inc.	Sauget, IL	2 GWh	Jul 2020	Dec 2024	Solar
Black Oak Wind Farm	Black Oak Wind, LLC	Sauk Centre, MN	298 GWh	Nov 2016	Sep 2025	Wind
USS Kasch Solar CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Sep 2018	Dec 2024	Solar
USS JJ Solar CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Dec 2018	Dec 2024	Solar
Novel Pederson Solar CSG	REA Investments, LLC	Sauk Rapids, MN	2 GWh	Jul 2020	Dec 2024	Solar
USS Solar Rapids CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Dec 2018	Dec 2024	Solar
Delphinus Community Solar	Delphinus Community Solar	Sauk Rapids, MN	3 GWh	Feb 2018	Dec 2024	Solar
USS Reindeer Solar LLC CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Nov 2020	Dec 2024	Solar
B.R. Sauk Rapids CSG	Minnesota Solar CSG 9, LLC	Sauk Rapids, MN	8 GWh	Oct 2017	Dec 2024	Solar
USS Mayhew Solar LLC CSG	Standard Solar	Sauk Rapids, MN	2 GWh	May 2020	Dec 2024	Solar
Studenski Community Solar LLC CSG	Studenski Community Solar LLC	Sauk Rapids, MN	2 GWh	Mar 2021	Dec 2024	Solar
Edison Sault	Cloverland Electric Co-op	Sault Ste. Marie, MI	199 GWh	Jun 1901	Dec 2024	Water
Saint Marys Falls	USACE-Detroit District	Sault Ste. Marie, MI	155 GWh	Jun 1932	Dec 2024	Water
Saxon Falls	Northern States Power Co - Minnesota	Saxon, WI	8 GWh	Dec 1912	Dec 2024	Water
Scandia Community Solar Garden	Scandia CSG LLC	Scandia, MN	4 GWh	Jun 2018	Dec 2024	Solar
Gemini Community Solar	Gemini Community Solar	Scandia, MN	5 GWh	Aug 2017	Dec 2024	Solar
Argo Navis Community Solar	Argo Navis Community Solar	Scandia, MN	5 GWh	Feb 2018	Dec 2024	Solar
MSC-Scandia01 CSG	MSC-Scandia01 LLC	Scandia, MN	2 GWh	Mar 2019	Dec 2024	Solar
USS Solar Sources LLC CSG	Standard Solar	Scandia, MN	2 GWh	Sep 2020	Dec 2024	Solar
Forest Lake Solar CSG	Forest Lake Holdco LLC	Scandia, MN	7 GWh	Jun 2017	Dec 2024	Solar
Scandia CSG	DG Minnesota CSG, LLC	Scandia, MN	9 GWh	Dec 2017	Dec 2024	Solar
Scanlon	ALLETE, Inc.	Scanlon, MN	7 GWh	Dec 1922	Dec 2024	Water
Intrepid	MidAmerican Energy Co	Schaller, IA	549 GWh	Nov 2004	Dec 2024	Wind
New Harvest Wind Project LLC	Avangrid Power LLC	Schleswig, IA	287 GWh	Nov 2011	Dec 2024	Wind
Cardinal Point Wind	Cardinal Point LLC	Sciota, IL	509 GWh	Feb 2020	Sep 2025	Wind
Scottsburg Solar Park	Indiana Municipal Power Agency	Scottsburg, IN	12 GWh	Sep 2020	Dec 2024	Solar
Searcy Solar Hybrid	Searcy Solar, LLC	Searcy, AR	207 GWh	Dec 2021	Sep 2025	Solar
Happy Solar 1	Lightsource Renewable Energy Asset Management, LLC	Searcy, AR	221 GWh	Sep 2023	Sep 2025	Solar
Searcy Water II	Entegrity Solar SWU 2, LLC	Searcy, AR	4 GWh	May 2021	Dec 2024	Solar
ACC	Entegrity Solar ACC, LLC	Searcy, AR	4 GWh	Apr 2023	Dec 2024	Solar
Searcy Water I	Entegrity Solar SWU, LLC	Searcy, AR	834 MWh	May 2021	Dec 2024	Solar
Pine Street	Village of Sebewaing - (MI)	Sebewaing, MI	14 GWh	May 1969	Dec 2024	Natural Gas
Main Street (MI)	Village of Sebewaing - (MI)	Sebewaing, MI	1 MWh	May 1947	Dec 2023	Distillate Fuel Oil
MSC Sebewaing	Michigan Sugar Company	Sebewaing, MI	569 MWh	Sep 1979	Mar 2025	Bituminous Coal : 71.0% Natural Gas : 29.0%
George Neal North	MidAmerican Energy Co	Sergeant Bluff, IA	2 TWh	Apr 1964	Sep 2025	Subbituminous Coal : 99.1% Natural Gas : 0.9%
Lawrence Creek Solar	Enel Green Power NA, Inc.	Shafer, MN	6 GWh	Nov 2016	Dec 2024	Solar
Shakopee Energy Park	Minnesota Municipal Power Agny	Shakopee, MN	24 GWh	Jan 2017	Dec 2024	Natural Gas
Shakopee Met Council WTP	Oak Leaf Solar V LLC	Shakopee, MN	2 GWh	Feb 2016	Dec 2024	Solar
Blue Lake Solar	Cypress Creek Renewables	Shakopee, MN	4 GWh	Nov 2016	Dec 2024	Solar
Koda Biomass Plant	Koda Energy LLC	Shakopee, MN	51 GWh	Apr 2009	Dec 2024	Agricultural By-Products : 69.2% Wood/Wood Waste Solids : 22.8% Natural Gas : 8.1%
Blue Lake	Northern States Power Co - Minnesota	Shakopee, MN	318 GWh	Feb 1974	Dec 2024	Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
Onion River	Wisconsin Power & Light Co	Sheboygan Cedar Grove, WI	253 GWh	Nov 2023	Sep 2025	Solar
Sheboygan Falls	Wisconsin Power & Light Co	Sheboygan, WI	642 GWh	May 2005	Dec 2024	Natural Gas
Edgewater	Wisconsin Power & Light Co	Sheboygan, WI	2 TWh	Jun 1951	Sep 2025	Subbituminous Coal : 99.9%
POET Biorefining - Shelbyville	POET Biorefing- Shelbyville	Shelbyville, IN	35 GWh	May 2020	Dec 2024	Natural Gas
Settlers Trail Wind Farm LLC	Big Sky Wind, LLC	Sheldon, IL	354 GWh	Sep 2011	Dec 2024	Wind
Shenandoah	MidAmerican Energy Co	Shenandoah, IA	44 MWh	Mar 2000	Dec 2024	Distillate Fuel Oil
Pine River Wind Park	DTE Electric Company	Shepherd, MI	363 GWh	Feb 2019	Sep 2025	Wind
San Jacinto County Peaking Facility	East Texas Electric Coop, Inc	Shepherd, TX	140 GWh	Jun 2001	Dec 2024	Natural Gas
Calhoun County Solar Project	AES Clean Energy	Sheridan Township, MI	179 GWh	-	Sep 2025	Solar
Sheridan School Corporation Solar	Johnson Melloh Solutions	Sheridan, IN	2 GWh	May 2016	Dec 2024	Solar
Sibley No Two	City of Sibley - (IA)	Sibley, IA	38 MWh	Nov 1987	Dec 2024	Distillate Fuel Oil : 67.1% Natural Gas : 32.9%
Sibley One	City of Sibley - (IA)	Sibley, IA	42 MWh	Aug 1971	Dec 2024	Distillate Fuel Oil : 58.9% Natural Gas : 41.1%
IL Sidney Project1	IL Sidney Project1, LLC	Sidney, IL	5 GWh	Mar 2021	Dec 2024	Solar
USS Water Fowl Solar LLC CSG	United States Solar Corporation	Silver Lake, MN	908 MWh	Aug 2022	Dec 2024	Solar
Angus Anson	Northern States Power Co - Minnesota	Sioux Falls, SD	237 GWh	Jul 1994	Dec 2024	Natural Gas : 99.2% Distillate Fuel Oil : 0.8%
Auriga Community Solar	National Grid Renewables	Slayton, MN	2 GWh	Nov 2018	Dec 2024	Solar
Slayton Solar	Ecos Energy LLC	Slayton, MN	2 GWh	Dec 2012	Dec 2024	Solar
USS Slayton Solar LLC (CSG)	United States Solar Corporation	Slayton, MN	627 MWh	Jul 2024	Dec 2024	Solar
Sleepy Eye	Sleepy Eye Public Utility Comm	Sleepy Eye, MN	131 MWh	Jun 1995	Dec 2024	Distillate Fuel Oil
Smithland Hydroelectric Plant	American Mun Power-Ohio, Inc	Smithland, KY	328 GWh	Jun 2017	Sep 2025	Water
Solway CT	Otter Tail Power Co	Solway, MN	125 GWh	Apr 2003	Dec 2024	Natural Gas
Apple River	Northern States Power Co - Minnesota	Somerset, WI	13 GWh	Dec 1900	Dec 2024	Water
Spencer Gas Turbine	City of Spencer - (IA)	Spencer, IA	651 MWh	Dec 1969	Dec 2024	Kerosene
Upland Prairie	Interstate Power and Light Co	Spencer, IA	1 TWh	Feb 2019	Sep 2025	Wind
Spiritwood Station	Great River Energy	Spiritwood, ND	154 GWh	Oct 2014	Sep 2025	Natural Gas : 59.9% Refined Coal : 40.1%
Spooner Solar Array	AEP Onsite Partners, LLC	Spooner, WI	4 GWh	May 2019	Dec 2024	Solar
Fillmore County Solar Project	National Grid Renewables	Spring Valley, MN	76 GWh	Nov 2024	Sep 2025	Solar
Spring Valley	Spring Valley Pub Utils Comm	Spring Valley, MN	157 MWh	Dec 1951	Dec 2024	Distillate Fuel Oil : 78.5% Natural Gas : 21.5%
Waste Management Eco Vista LFGTE	WM Renewable Energy LLC	Springdale, AR	22 GWh	Oct 2010	Dec 2024	Natural Gas
Interstate	City of Springfield - (IL)	Springfield, IL	51 GWh	Aug 1997	Dec 2024	Natural Gas : 99.9%
Reynolds	City of Springfield - (IL)	Springfield, IL	81 MWh	Oct 1970	Dec 2024	Distillate Fuel Oil
Factory	City of Springfield - (IL)	Springfield, IL	79 MWh	Jul 1973	Oct 2024	Distillate Fuel Oil
Dallman	City of Springfield - (IL)	Springfield, IL	809 GWh	May 1968	Sep 2025	Bituminous Coal : 99.6%
Springfield (MN)	Springfield Public Utils Comm - (MN)	Springfield, MN	1 MWh	May 1994	Dec 2024	Distillate Fuel Oil
St. Charles Solar	Butter Solar, LLC	St Charles Township, MN	3 GWh	Aug 2019	Dec 2024	Solar
St. Cloud Hydro	St. Cloud Hydroelectric Generation Facility	St Cloud, MN	51 GWh	May 1988	Dec 2024	Water
St Croix Falls	Northern States Power Co - Minnesota	St Croix Falls, WI	105 GWh	Dec 1909	Dec 2024	Water
Carville Energy LLC	Carville Energy LLC	St Gabriel, LA	3 TWh	May 2003	Sep 2025	Natural Gas
St James	City of St James - (MN)	St James, MN	36 MWh	Jun 2002	Dec 2024	Distillate Fuel Oil
Coughlin Power Station	Cleco Power LLC	St Landry, LA	4 TWh	Mar 1961	Sep 2025	Natural Gas
Trigen St. Louis	Centerstream STL, LLC	St Louis, MO	86 GWh	May 1999	Jul 2025	Natural Gas
Renewable Energy Center at BJH	Union Electric Co - (MO)	St Louis, MO	846 MWh	Sep 2019	Dec 2024	Solar
Turtle Creek Wind Farm LLC	Turtle Creek Wind Farm LLC	St. Ansgar, IA	725 GWh	Nov 2018	Sep 2025	Wind
St Bonifacius	Great River Energy	St. Bonifacius, MN	2 GWh	May 1978	Dec 2024	Distillate Fuel Oil
St. Charles Power Plant	City of St Charles - (MN)	St. Charles, MN	71 MWh	Nov 2004	Dec 2024	Distillate Fuel Oil
Marmas Solar CSG	National Grid Renewables	St. Cloud, MN	6 GWh	Mar 2018	Dec 2024	Solar
St. Cloud Solar CSG	National Grid Renewables	St. Cloud, MN	9 GWh	Mar 2018	Dec 2024	Solar
USS Haven Solar LLC CSG	Standard Solar	St. Cloud, MN	2 GWh	Oct 2019	Dec 2024	Solar
GSPP Imholte CSG	Green Street Power Partners	St. Cloud, MN	2 GWh	Apr 2019	Dec 2024	Solar
GSPP Held LLC CSG	Green Street Power Partners	St. Cloud, MN	5 GWh	May 2019	Dec 2024	Solar
Sherburne North Project CSG	MN Solar Community, LLC	St. Cloud, MN	9 GWh	Jun 2018	Dec 2024	Solar
FastSun 21 CSG	Altus Power America Management, LLC	St. Cloud, MN	2 GWh	May 2021	Dec 2024	Solar
USS White Cloud LLC CSG	Standard Solar	St. Cloud, MN	2 GWh	Oct 2019	Dec 2024	Solar
Conagra Foods at St. Elmo	Luminace Solar Illinois 2, LLC	St. Elmo, IL	3 GWh	Dec 2020	Dec 2024	Solar
River Bend	Entergy Louisiana LLC	St. Francisville, LA	7 TWh	May 1986	Sep 2025	Nuclear
St Francisville Mill	Hood Container of Louisiana, LLC	St. Francisville, LA	110 GWh	Feb 1966	Dec 2024	Black Liquor : 58.6% Natural Gas : 41.4%
Bingham Solar, LLC	National Grid Renewables	St. Johns, MI	41 GWh	Nov 2020	Dec 2024	Solar
Orion Community Solar	Orion Community Solar	St. Joseph, MN	5 GWh	Dec 2016	Dec 2024	Solar
St Louis	City of St Louis - (MI)	St. Louis, MI	29 MWh	Dec 1918	Dec 2024	Water : 75.9% Distillate Fuel Oil : 24.1%

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