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	Oct 2026
Annual Generation	677.7 TWh
Power Plants	3,095
Utilities	1,372
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 \| 37.1% Coal \| 26.2% Wind \| 15% Nuclear \| 13.8% Solar \| 6.1% Water \| 1.4% Other Fuel \| 0.5%

Map of Midcontinent Independent System Operator, Inc.

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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
City of Peru Rail Generating Station	City of Peru - (IL)	Peru, IL	53 MWh	Aug 2011	Dec 2025	Distillate Fuel Oil
Peru (IN)	City of Peru - (IN)	Peru, IN	6 MWh	May 1949	Dec 2024	Distillate Fuel Oil
West Diesel Generation Unit	City of Pocahontas - (IA)	Pocahontas, IA	4 MWh	May 2006	Dec 2025	Distillate Fuel Oil
Frank Jenkins	City of Portland - (MI)	Portland, MI	195 MWh	Apr 1950	Dec 2025	Distillate Fuel Oil : 81.7% Natural Gas : 18.3%
Preston (IA)	City of Preston - (IA)	Preston, IA	9 MWh	Nov 1968	Dec 2025	Natural Gas : 85.1% Distillate Fuel Oil : 14.9%
Princeton (IL)	City of Princeton - (IL)	Princeton, IL	813 MWh	Jun 1953	Dec 2025	Natural Gas : 99.8%
Red Bud	City of Red Bud - (IL)	Red Bud, IL	262 MWh	Feb 1959	Dec 2025	Distillate Fuel Oil
Water Reclamation Plant	City of Rochester - (MN)	Rochester, MN	4 GWh	Feb 2003	Dec 2025	Other Biomass Gas : 99.8%
Avenue A Generator Sets	City of Rock Falls - (IL)	Rock Falls, IL	224 MWh	Aug 2000	Dec 2025	Distillate Fuel Oil
Industrial Park	City of Rock Falls - (IL)	Rock Falls, IL	838 MWh	Jun 2001	Dec 2025	Distillate Fuel Oil
Upper Sterling	City of Rock Falls - (IL)	Rock Falls, IL	5 GWh	May 1988	May 2025	Water
Rockford	City of Rockford- (IA)	Rockford, IA	6 MWh	Jul 1951	Dec 2025	Distillate Fuel Oil
Sibley One	City of Sibley - (IA)	Sibley, IA	174 MWh	Aug 1971	Dec 2025	Distillate Fuel Oil : 65.0% Natural Gas : 35.0%
Sibley No Two	City of Sibley - (IA)	Sibley, IA	37 MWh	Nov 1987	Dec 2025	Natural Gas : 90.9% Distillate Fuel Oil : 9.1%
Spencer Gas Turbine	City of Spencer - (IA)	Spencer, IA	86 MWh	Dec 1969	Dec 2025	Kerosene
Dallman	City of Springfield - (IL)	Springfield, IL	815 GWh	May 1968	Jul 2026	Bituminous Coal : 99.4% Natural Gas : 0.6%
Reynolds	City of Springfield - (IL)	Springfield, IL	179 MWh	Oct 1970	Dec 2025	Distillate Fuel Oil
Interstate	City of Springfield - (IL)	Springfield, IL	58 GWh	Aug 1997	Dec 2025	Natural Gas : 99.2% Distillate Fuel Oil : 0.8%
Factory	City of Springfield - (IL)	Springfield, IL	198 MWh	Jul 1973	Jun 2025	Distillate Fuel Oil
St. Charles Power Plant	City of St Charles - (MN)	St. Charles, MN	75 MWh	Nov 2004	Dec 2025	Distillate Fuel Oil
St James	City of St James - (MN)	St James, MN	93 MWh	Jun 2002	Dec 2025	Distillate Fuel Oil
St Louis	City of St Louis - (MI)	St. Louis, MI	8 MWh	Dec 1918	Dec 2025	Distillate Fuel Oil
State Center	City of State Center - (IA)	State Center, IA	153 MWh	Jul 1972	Dec 2025	Distillate Fuel Oil : 72.4% Natural Gas : 27.6%
Story City	City of Story City - (IA)	Story City, IA	315 MWh	Dec 1963	Dec 2025	Distillate Fuel Oil : 87.0% Natural Gas : 13.0%
South Strawberry	City of Strawberry Point -(IA)	Strawberry Point, IA	16 MWh	Dec 2001	Dec 2025	Distillate Fuel Oil
Gilliam South	City of Stuart - (IA)	Stuart, IA	4 MWh	Jan 2001	Dec 2025	Distillate Fuel Oil
Sullivan (IL)	City of Sullivan - (IL)	Sullivan, IL	574 MWh	May 1946	Jul 2026	Distillate Fuel Oil
Sumner	City of Sumner - (IA)	Sumner, IA	55 MWh	Jul 1956	Dec 2025	Distillate Fuel Oil
Thief River Falls	City of Thief River Falls - (MN)	Thief River Falls, MN	3 GWh	Jul 1927	Dec 2025	Water : 99.7%
Tipton	City of Tipton - (IA)	Tipton, IA	266 MWh	Oct 1955	Dec 2025	Distillate Fuel Oil
Traer East	City of Traer - (IA)	Tracer, IA	6 MWh	Feb 2004	Dec 2025	Distillate Fuel Oil
Traer South	City of Traer - (IA)	Traer, IA	12 MWh	Mar 2001	Dec 2025	Distillate Fuel Oil
Traer Main	City of Traer - (IA)	Traer, IA	65 MWh	Dec 1962	Dec 2025	Distillate Fuel Oil : 98.5% Natural Gas : 1.5%
Traer Wind Project	City of Traer - (IA)	Traer, IA	6 GWh	Sep 2010	Dec 2025	Wind
Truman	City of Truman - (MN)	Truman, MN	16 MWh	Aug 1938	Dec 2025	Distillate Fuel Oil
Villisca Municipal Power Plant	City of Villisca - (IA)	Villisca, IA	22 MWh	May 2003	Dec 2025	Distillate Fuel Oil
Waterloo	City of Waterloo - (IL)	Waterloo, IL	751 MWh	May 1946	Dec 2025	Natural Gas : 73.6% Distillate Fuel Oil : 26.4%
Webster City	City of Webster City - (IA)	Webster City, IA	383 MWh	Mar 1972	Dec 2025	Distillate Fuel Oil
Wells IC	City of Wells - (MN)	Wells, MN	437 MWh	Oct 1950	Dec 2025	Natural Gas : 67.1% Distillate Fuel Oil : 32.9%
West Bend	City of West Bend - (IA)	West Bent, IA	68 MWh	Nov 1954	Dec 2025	Distillate Fuel Oil
West Liberty	City of West Liberty - (IA)	West Liberty, IA	234 MWh	Sep 1974	Dec 2025	Distillate Fuel Oil
Westbrook	City of Westbrook - (MN)	Westbrook, MN	10 MWh	Sep 2003	Dec 2025	Distillate Fuel Oil
Wilton	City of Wilton - (IA)	Wilton, IA	8 MWh	Dec 1991	Dec 2025	Distillate Fuel Oil
Windom	City of Windom (MN)	Windom, MN	32 MWh	May 1980	Dec 2025	Distillate Fuel Oil
Winterset	City of Winterset - (IA)	Winterset, IA	33 MWh	Jun 1956	Dec 2025	Distillate Fuel Oil : 57.8% Natural Gas : 42.2%
Worthington	City of Worthington - (MN)	Worthington, MN	6 GWh	Jan 2002	Dec 2025	Wind : 99.3% Distillate Fuel Oil : 0.7%
Riley Generating Station	City of Zeeland - (MI)	Zeeland, MI	844 MWh	Jun 2006	Dec 2025	Natural Gas
Municipal Power Plant	City of Zeeland - (MI)	Zeeland, MI	205 MWh	May 2002	Dec 2025	Natural Gas
Zeeland	City of Zeeland - (MI)	Zeeland, MI	600 MWh	Dec 1956	Dec 2025	Natural Gas : 89.2% Distillate Fuel Oil : 10.8%
Jonesboro City Water & Light Plant	City Water and Light Plant - (AR)	Jonesboro, AR	57 GWh	Jun 1999	Dec 2025	Natural Gas : 99.9%
Jonesboro CWL Solar Park	City Water and Light Plant - (AR)	Jonesboro, AR	21 GWh	May 2022	Dec 2025	Solar
Syncarpha Clara City CSG I (Stamer)	Clara City CSG I, LLC	Clara City, MN	2 GWh	Nov 2018	Dec 2025	Solar
Clara City Solar	Clara City Solar LLC	Clara City, MN	2 GWh	Aug 2019	Dec 2025	Solar
L L Wilkins	Clarksdale Public Utilities	Clarksdale, MS	166 MWh	Sep 1961	Aug 2025	Natural Gas : 71.4% Distillate Fuel Oil : 28.6%
Crossroads Energy Center	Clarksdale Public Utilities	Clarksdale, MS	65 GWh	Jun 2002	Dec 2025	Natural Gas
Clay FC	Clay FC, LLC	Louisville, IL	4 GWh	Jun 2021	Dec 2025	Solar
Cornillie 2 Community (CSG)	CleanCapital Holdings	North Branch, MN	2 GWh	Nov 2020	Dec 2025	Solar
Paulson Community (CSG)	CleanCapital Holdings	St. Peter, MN	2 GWh	Mar 2020	Dec 2025	Solar
Rockville Solar I LLC	CleanCapital Holdings	Indianapolis, IN	2 GWh	Mar 2014	Dec 2025	Solar
Rockville Solar II, LLC	CleanCapital Holdings	Indianapolis, IN	912 MWh	Jul 2014	Dec 2025	Solar
Laurel Village (CSG)	CleanCapital Holdings	Cokato, MN	2 GWh	Mar 2020	Dec 2025	Solar
Carlson Community (CSG)	CleanCapital Holdings	Lindstrom, MN	2 GWh	Sep 2020	Dec 2025	Solar
Hertzberg Community (CSG)	CleanCapital Holdings	Paynesville, MN	2 GWh	Mar 2020	Dec 2025	Solar
Brenda Luhman - CSG	CleanCapital Holdings	Zumbrota, MN	2 GWh	Jul 2020	Dec 2025	Solar
Hammer Community (CSG)	CleanCapital Holdings	Clear Lake, MN	2 GWh	Jul 2020	Dec 2025	Solar
Gohman Community Solar (CSG)	CleanCapital Holdings	Clear Lake, MN	2 GWh	Jan 2020	Dec 2025	Solar
Clear Garden CSG	Clear Garden LLC	Waseca, MN	2 GWh	Aug 2019	Dec 2025	Solar
Clearwater Paper APP CB	Clearwater Paper Corporation	Arkansas City, AR	123 GWh	Oct 1977	Dec 2025	Black Liquor : 58.1% Natural Gas : 41.5%
Brame Energy Center	Cleco Power LLC	Lena, LA	4 TWh	May 1975	Jul 2026	Subbituminous Coal : 49.2% Natural Gas : 35.7% Petroleum Coke : 10.7% Bituminous Coal : 4.4%
Coughlin Power Station	Cleco Power LLC	St Landry, LA	4 TWh	Mar 1961	Jul 2026	Natural Gas
Teche	Cleco Power LLC	Baldwin, LA	6 GWh	Jun 1953	Sep 2025	Natural Gas
Acadia Energy Center	Cleco Power LLC	Eunice, LA	6 TWh	Jun 2002	Jul 2026	Natural Gas
St. Mary Clean Energy Center	Cleco Power LLC	Centerville, LA	181 GWh	Jul 2019	Dec 2025	Waste Heat
Clendenin A Community Solar, LLC CSG	Clendenin A Community Solar, LLC	Herrin, IL	4 GWh	Jun 2021	Dec 2025	Solar
Expander Turbine	Cleveland Cliffs	East Chicago, IN	86 GWh	Apr 1981	Jul 2026	Blast Furnace Gas
Indiana Harbor West	Cleveland Cliffs	East Chicago, IN	208 GWh	Sep 1939	Dec 2025	Natural Gas
ArcelorMittal Burns Harbor	Cleveland-Cliffs Burns Harbor LLC	Burns Harbor, IN	719 GWh	Dec 1968	Dec 2025	Blast Furnace Gas : 37.1% Natural Gas : 32.1% Other Gas : 30.8%
Clinton Solar 4 LLC CSG	Clinton Solar 4 LLC	Carlyle, IL	3 GWh	Sep 2020	Dec 2025	Solar
Detour	Cloverland Electric Co-op	Detour, MI	2 GWh	Sep 1973	Dec 2025	Distillate Fuel Oil
Edison Sault	Cloverland Electric Co-op	Sault Ste. Marie, MI	181 GWh	Jun 1901	Dec 2025	Water
Dafter	Cloverland Electric Co-op	Dafter, MI	3 GWh	Oct 1955	Dec 2025	Distillate Fuel Oil
Manistique	Cloverland Electric Co-op	Manistique, MI	1 GWh	Jun 1960	Dec 2025	Distillate Fuel Oil
Kalamazoo River Generating Station	CMS Generation MI Power LLC	Comstock, MI	136 GWh	May 1999	Dec 2025	Natural Gas
Livingston Generating Station	CMS Generation MI Power LLC	Gaylord, MI	22 GWh	May 1999	Dec 2025	Natural Gas
Coggon	Coggon Municipal Light Plant - (IA)	Coggon, IA	38 MWh	Sep 1957	Dec 2025	Distillate Fuel Oil
Cokato CSG	Cokato Holdco LLC	Cokato, MN	8 GWh	Jul 2021	Dec 2025	Solar
Heat Recovery Coke Facility	Cokenergy Inc	East Chicago, IN	413 GWh	Mar 1998	Jul 2026	Waste Heat
Coldwater Peaking Plant	Coldwater Board of Public Util	Coldwater, MI	2 GWh	Jun 2015	Dec 2025	Natural Gas
Coldwater River Solar	Coldwater River Solar, LLC	Coldwater, MI	241 GWh	Jun 2025	Jul 2026	Solar
Coldwater Solar, LLC	Coldwater Solar, LLC	Flint, MI	4 GWh	Nov 2020	Dec 2025	Solar
Minwind	Community Renewables, LLC	Luverne, MN	276 MWh	Sep 2002	Dec 2024	Wind
Duke Building 87	Concord New Energy	Indianapolis, IN	3 GWh	Nov 2014	Dec 2025	Solar
Duke Building 98	Concord New Energy	Indianapolis, IN	4 GWh	Nov 2014	Dec 2025	Solar
Duke Building 129	Concord New Energy	Indianapolis, IN	4 GWh	Nov 2014	Dec 2025	Solar
Jefferson Solar Park	Concord New Energy	Jefferson, WI	577 MWh	Nov 2013	Dec 2025	Solar
Biron	Consolidated Water Power Co	Biron, WI	30 GWh	Dec 1895	Dec 2025	Water
Du Bay	Consolidated Water Power Co	Eau Pleine, WI	36 GWh	Dec 1941	Dec 2025	Water
Stevens Point	Consolidated Water Power Co	Stevens Point, WI	26 GWh	Dec 1917	Dec 2025	Water
Wisconsin Rapids	Consolidated Water Power Co	Wisconsin Rapids, WI	46 GWh	Dec 1902	Dec 2025	Water
Whiting	Consolidated Water Power Co	Whiting, WI	16 GWh	Dec 1890	Dec 2025	Water

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	433.0 GWh	4
#26	Associated Electric Cooperative, Inc.	22.9 TWh	47
#13	Duke Energy Carolinas	113.4 TWh	578
#50	Duke Energy Progress West	4.6 TWh	15
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.2 TWh	25
#1	PJM Interconnection, LLC	890.9 TWh	2,806
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#5	Southwest Power Pool	314.5 TWh	876
#53	Southwestern Power Administration	3.5 TWh	37
#9	Tennessee Valley Authority	166.2 TWh	209

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	890.9 TWh	2,806
#2	Midcontinent Independent System Operator, Inc.	677.7 TWh	3,095
#3	Electric Reliability Council of Texas, Inc.	506.3 TWh	1,487
#5	Southwest Power Pool	314.5 TWh	876
#6	Southern Company Services, Inc. - Trans	259.3 TWh	423
#7	California Independent System Operator	168.7 TWh	2,170
#9	Tennessee Valley Authority	166.2 TWh	209
#10	Florida Power & Light Co.	153.0 TWh	188
#12	New York Independent System Operator	134.1 TWh	1,334
#13	Duke Energy Carolinas	113.4 TWh	578