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%

Map of Midcontinent Independent System Operator, Inc.

Register Now for Comprehensive Access

Subscribe now to access all power plant data, utility information, FERC EQR data, and more for Midcontinent Independent System Operator, Inc..

Create Your Account Today

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
Prickett	Upper Peninsula Power Company	Pelkie, MI	7 GWh	Oct 1931	Dec 2024	Water
A.J. Mihm Generating Station	Upper Michigan Energy Resources Company	Pelkie, MI	170 GWh	Feb 2019	Dec 2024	Natural Gas
F.D. Kuester Generating Station	Upper Michigan Energy Resources Company	Negaunee, MI	375 GWh	Feb 2019	Dec 2024	Natural Gas
University of Northern Iowa	University of Northern Iowa	Cedar Falls, IA	20 GWh	Oct 1982	Sep 2025	Natural Gas : 76.2% Petroleum Coke : 16.6% Bituminous Coal : 7.1%
WCROC Wind Farm	University of Minnesota WCROC	Morris, MN	4 GWh	Feb 2005	Dec 2024	Wind
UMM Wind Turbine	University of Minnesota Morris Campus	Morris, MN	4 GWh	May 2011	Dec 2024	Wind
Univ Minnesota CHP Plant	University of Minnesota Central Utilities	Minneapolis, MN	166 GWh	Oct 2017	Dec 2024	Natural Gas : 99.9%
Warner Lambert	University of Michigan NCampus Research	Ann Arbor, MI	24 GWh	Jul 1989	Sep 2025	Natural Gas
University of Michigan	University of Michigan	Ann Arbor, MI	209 GWh	Dec 1974	Sep 2025	Natural Gas
University of Iowa Main Power Plant	University of Iowa	Iowa City, IA	4 GWh	Dec 1946	Sep 2024	Natural Gas : 51.7% Other Biomass Solids : 19.1% Wood/Wood Waste Solids : 18.4% Bituminous Coal : 10.8%
University of Illinois Abbott Power Plt	University of Illinois	Champaign, IL	211 GWh	Oct 1940	Dec 2024	Natural Gas : 97.4% Bituminous Coal : 2.6%
Gary Works	United States Steel-Gary	Gary, IN	784 GWh	Mar 1997	Sep 2025	Blast Furnace Gas : 51.3% Natural Gas : 48.6%
Granite City Works	United States Steel Granite City Works	Granite City, IL	438 GWh	May 2010	Sep 2025	Natural Gas : 50.8% Purchased Steam : 49.2%
Courtland CSG LLC	United States Solar Corporation	Courtland, MN	2 GWh	Jun 2023	Dec 2024	Solar
USS Fair Park Solar LLC (CSG)	United States Solar Corporation	Faribault, MN	2 GWh	Nov 2023	Dec 2024	Solar
MN Buffalo Lake 212-2 LLC (CSG)	United States Solar Corporation	Buffalo Lake, MN	2 GWh	Nov 2023	Dec 2024	Solar
USS Cosmo Solar LLC (CSG)	United States Solar Corporation	Danube, MN	2 GWh	Nov 2023	Dec 2024	Solar
USS Martha Solar (CSG)	United States Solar Corporation	Hamburg, MN	2 GWh	Dec 2023	Dec 2024	Solar
USS Golly Gee Solar LLC	United States Solar Corporation	Clear Lake, MN	2 GWh	Jun 2023	Dec 2024	Solar
USS Dressen Family Solar LLC	United States Solar Corporation	Mayer, MN	2 GWh	Jun 2023	Dec 2024	Solar
USS Wolf Solar LLC	United States Solar Corporation	Wood Lake, MN	2 GWh	Jun 2023	Dec 2024	Solar
USS Wonder Solar LLC	United States Solar Corporation	Bird Island, MN	2 GWh	Jun 2023	Dec 2024	Solar
USS Peach Solar LLC	United States Solar Corporation	Mankato, MN	2 GWh	Jun 2022	Dec 2024	Solar
MP CSG 1 LLC	United States Solar Corporation	Wrenshall, MN	2 GWh	Dec 2017	Dec 2024	Solar
MN Buffalo Lake 212-1 LLC (CSG)	United States Solar Corporation	Buffalo Lake, MN	2 GWh	Nov 2023	Dec 2024	Solar
USS Rosewood Solar LLC (CSG)	United States Solar Corporation	Montevideo, MN	544 MWh	Jul 2024	Dec 2024	Solar
USS Slayton Solar LLC (CSG)	United States Solar Corporation	Slayton, MN	627 MWh	Jul 2024	Dec 2024	Solar
MN East Regal LLC (CSG)	United States Solar Corporation	Paynesville, MN	179 MWh	Jul 2024	Dec 2024	Solar
Spring Prairie Solar LLC CSG	United States Solar Corporation	Glyndon, MN	1 GWh	Apr 2024	Dec 2024	Solar
USS Riley Solar LLC (CSG)	United States Solar Corporation	Montevideo, MN	2 GWh	Nov 2023	Dec 2024	Solar
USS Maverick Solar LLC (CSG)	United States Solar Corporation	Good Thunder, MN	1 GWh	Nov 2023	Dec 2024	Solar
USS Verbena Solar LLC	United States Solar Corporation	Stewart, MN	2 GWh	Sep 2022	Dec 2024	Solar
USS Wells Creek Solar LLC	United States Solar Corporation	Goodhue, MN	2 GWh	Dec 2022	Dec 2024	Solar
USS Mesa Solar LLC	United States Solar Corporation	Danube, MN	2 GWh	Dec 2022	Dec 2024	Solar
USS Itasca Clean Energy Solar LLC	United States Solar Corporation	Grand Rapids, MN	4 GWh	Jul 2022	Dec 2024	Solar
USS Catfish Solar LLC	United States Solar Corporation	Franklin, MN	2 GWh	Dec 2022	Dec 2024	Solar
USS Franklin Solar LLC	United States Solar Corporation	Franklin, MN	2 GWh	Dec 2022	Dec 2024	Solar
USS Jayhawk Solar LLC (CSG)	United States Solar Corporation	Mankato, MN	2 GWh	Nov 2023	Dec 2024	Solar
USS Hancock Solar LLC CSG	United States Solar Corporation	Cologne, MN	2 GWh	Dec 2020	Dec 2024	Solar
USS Bluff Country Solar CSG	United States Solar Corporation	Altura, MN	2 GWh	Nov 2020	Dec 2024	Solar
USS Pheasant Solar LLC CSG	United States Solar Corporation	Clara City, MN	2 GWh	Oct 2020	Dec 2024	Solar
USS Nillie Corn Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Dec 2024	Solar
USS Chariot Solar LLC	United States Solar Corporation	Danube, MN	2 GWh	Dec 2020	Dec 2024	Solar
USS JJ Solar CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Dec 2018	Dec 2024	Solar
USS Hubers Solar LLC CSG	United States Solar Corporation	Northfield, MN	2 GWh	Dec 2020	Dec 2024	Solar
USS Water Town Solar LLC CSG	United States Solar Corporation	Waterville, MN	2 GWh	Oct 2021	Dec 2024	Solar
USS Water Fowl Solar LLC CSG	United States Solar Corporation	Silver Lake, MN	908 MWh	Aug 2022	Dec 2024	Solar
USS Water City Solar LLC CSG	United States Solar Corporation	Waterville, MN	2 GWh	Sep 2021	Dec 2024	Solar
USS Dubhe Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Dec 2024	Solar
USS Brockway Solar CSG	United States Solar Corporation	Sartell, MN	2 GWh	Dec 2018	Dec 2024	Solar
USS Norelius Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Dec 2018	Dec 2024	Solar
USS Solar Dawn CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Dec 2024	Solar
USS Rockpoint Solar CSG	United States Solar Corporation	Stacy, MN	2 GWh	Nov 2018	Dec 2024	Solar
USS Wildcat Solar LLC	United States Solar Corporation	Goodhue, MN	2 GWh	Oct 2021	Dec 2024	Solar
Helen CSG 1 LLC	United States Solar Corporation	Plato, MN	2 GWh	Oct 2021	Dec 2024	Solar
USS Kasch Solar CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Sep 2018	Dec 2024	Solar
USS Solar Rapids CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Dec 2018	Dec 2024	Solar
USS Reindeer Solar LLC CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Nov 2020	Dec 2024	Solar
USS Good Solar CSG	United States Solar Corporation	Stacy, MN	2 GWh	Nov 2018	Dec 2024	Solar
USS Quail Solar LLC	United States Solar Corporation	Monticello, MN	2 GWh	Dec 2021	Aug 2024	Solar
USS Danube Solar LLC	United States Solar Corporation	Danube, MN	2 GWh	Nov 2021	Dec 2024	Solar
USS Bush Solar LLC CSG	United States Solar Corporation	Owatonna, MN	2 GWh	Sep 2020	Dec 2024	Solar
USS Viceroy Solar LLC CSG	United States Solar Corporation	Brooten, MN	3 GWh	Dec 2020	Dec 2024	Solar
USS Foley Solar LLC	United States Solar Corporation	Foley, MN	2 GWh	Jun 2022	Dec 2024	Solar
USS Big Lake 1 Solar CSG	United States Solar Corporation	Big Lake, MN	2 GWh	Nov 2018	Dec 2024	Solar
USS Prokosch Solar LLC	United States Solar Corporation	Bird Island, MN	2 GWh	May 2022	Dec 2024	Solar
USS Rosebud Solar LLC	United States Solar Corporation	Morgan, MN	2 GWh	Jul 2022	Dec 2024	Solar
Renewable Energy Center at BJH	Union Electric Co - (MO)	St Louis, MO	846 MWh	Sep 2019	Dec 2024	Solar
High Prairie Wind Farm	Union Electric Co - (MO)	Queen City, MO	274 GWh	Nov 2020	Sep 2025	Wind
O'Fallon Renewable Energy Center	Union Electric Co - (MO)	O'Fallon, MO	2 GWh	Nov 2014	Dec 2024	Solar
Rush Island	Union Electric Co - (MO)	Festus, MO	603 GWh	Feb 1976	Sep 2024	Subbituminous Coal : 98.2% Distillate Fuel Oil : 1.8%
Pinckneyville	Union Electric Co - (MO)	Pinckneyville, IL	80 GWh	May 2000	Dec 2024	Natural Gas
Moreau	Union Electric Co - (MO)	Moreau, MO	1 GWh	Jul 1978	Dec 2024	Distillate Fuel Oil
Moberly	Union Electric Co - (MO)	Moberly, MO	34 MWh	Jul 1978	Dec 2024	Distillate Fuel Oil
Audrain Generating Station	Union Electric Co - (MO)	Vandalia, MO	146 GWh	Jan 2001	Dec 2024	Natural Gas
Mexico	Union Electric Co - (MO)	Mexico, MO	767 MWh	Aug 1978	Dec 2024	Distillate Fuel Oil
Keokuk	Union Electric Co - (MO)	Keokuk, IA	888 GWh	Jul 1913	Dec 2024	Water
Goose Creek Energy Center	Union Electric Co - (MO)	Monticello, IL	817 MWh	Apr 2003	Nov 2024	Natural Gas
Callaway	Union Electric Co - (MO)	Fulton, MO	8 TWh	Nov 1984	Sep 2025	Nuclear
Fairgrounds	Union Electric Co - (MO)	Jefferson City, MO	136 MWh	Jul 1974	Dec 2024	Distillate Fuel Oil
Venice	Union Electric Co - (MO)	Venice, IL	27 GWh	May 2002	Dec 2024	Natural Gas
Sioux	Union Electric Co - (MO)	West Alton, MO	4 TWh	Apr 1967	Sep 2025	Subbituminous Coal : 73.2% Bituminous Coal : 26.7%
Osage Dam	Union Electric Co - (MO)	Eldon, MO	497 GWh	Sep 1931	Dec 2024	Water
Labadie	Union Electric Co - (MO)	Labadie, MO	16 TWh	May 1970	Sep 2025	Subbituminous Coal : 99.9%
Peno Creek	Union Electric Co - (MO)	Bowling Green, MO	118 GWh	Apr 2002	Dec 2024	Natural Gas : 97.4% Distillate Fuel Oil : 2.6%
Huck Finn Renewable Energy Center	Union Electric Co - (MO)	Vandalia, MO	358 GWh	Nov 2024	Sep 2025	Solar
Cass County Renewable Energy Center	Union Electric Co - (MO)	Beardstown, IL	281 GWh	Nov 2024	Sep 2025	Solar
Montgomery County Community Solar Center	Union Electric Co - (MO)	New Florence, MO	9 GWh	Feb 2022	Dec 2024	Solar
Cape Girardeau Renewable Energy Center	Union Electric Co - (MO)	Cape Girardeau, MO	2 GWh	Oct 2021	Dec 2024	Solar
Boomtown Renewable Energy Center	Union Electric Co - (MO)	Carmi, IL	250 GWh	Nov 2024	Sep 2025	Solar
Umbriel Solar	Umbriel Solar, LLC	Livington, TX	321 GWh	Sep 2023	Sep 2025	Solar
M. G. Emmett J. Bean Federal Center	U.S. General Services Administration	Indianapolis, IN	519 MWh	Mar 2011	Dec 2024	Solar
Security	TX LFG Energy, LP	Cleveland, TX	6 GWh	Feb 2003	Dec 2024	Landfill Gas
Twin Lakes Solar LLC	Twin Lakes Solar LLC	Monticello, IN	308 GWh	Nov 2024	Sep 2025	Solar
Twin Cities Hydro LLC	Twin Cities Hydro LLC	St. Paul, MN	90 GWh	Sep 1924	Dec 2024	Water
Tweite Community Solar LLC	Tweite Community Solar LLC	Byron, MN	2 GWh	Oct 2020	Dec 2024	Solar
Tuscola Wind II LLC	Tuscola Wind II LLC	Reese, MI	301 GWh	Oct 2013	Sep 2025	Wind
Tuscola Bay Wind	Tuscola Bay Wind LLC	Reese, MI	367 GWh	Nov 2012	Sep 2025	Wind
Turtle Creek Wind Farm LLC	Turtle Creek Wind Farm LLC	St. Ansgar, IA	725 GWh	Nov 2018	Sep 2025	Wind
Truman Solar	Truman Solar, LLC	Colombia, MO	23 GWh	May 2021	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