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
Lake Lilian Solar	Lake Lilian Solar, LLC	Lilian Lake, MN	2 GWh	Nov 2024	Dec 2025	Solar
Saratoga Wind Farm	Madison Gas & Electric Co	Lime Springs, IA	260 GWh	Jan 2019	May 2026	Wind
Lindstrom Solar CSG	Geronimo Power	Lindstrom, MN	5 GWh	Mar 2018	Dec 2025	Solar
Nautilus Lindstrom Solar (CSG)	Nautilus Solar Solutions	Lindstrom, MN	3 GWh	Feb 2019	May 2026	Solar
Johnson 1 Community Solar	Johnson I CSG LLC	Lindstrom, MN	2 GWh	Jul 2018	Dec 2025	Solar
Olinda Trail Solar	Olinda Trail Solar LLC	Lindstrom, MN	2 GWh	Aug 2019	Dec 2025	Solar
Carlson Community (CSG)	CleanCapital Holdings	Lindstrom, MN	2 GWh	Sep 2020	Dec 2025	Solar
Johnson CSG 1	Madison Energy Holdings LLC	Lindstrom, MN	2 GWh	Nov 2021	Dec 2025	Solar
Johnson CSG 2	Madison Energy Holdings LLC	Lindstrom, MN	2 GWh	Feb 2023	Dec 2025	Solar
Flodquist Community Solar LLC CSG	Flodquist Community Solar LLC	Lindstrom, MN	2 GWh	Jul 2021	Dec 2025	Solar
Linton	Indiana Municipal Power Agency	Linton, IN	10 GWh	Jun 2022	Dec 2025	Solar
Emmons-Logan Wind, LLC	Emmons-Logan Wind, LLC	Linton, ND	849 GWh	Nov 2019	May 2026	Wind
Litchfield	Litchfield Public Utilities	Litchfield, MN	861 MWh	Aug 1963	Dec 2025	Distillate Fuel Oil : 54.6% Natural Gas : 45.4%
Buffalo Center Wind LLC	Buffalo Center Wind LLC	Little Cedar, IA	4 GWh	Oct 2011	Dec 2025	Wind
Little Cedar	OneEnergy, Inc.	Little Cedar, IA	65 MWh	Nov 2025	Dec 2025	Solar
Camp Ripley Solar	Camp Riley Solar Facility	Little Falls, MN	14 GWh	Oct 2016	Dec 2025	Solar
Little Falls (MN)	ALLETE, Inc.	Little Falls, MN	27 GWh	Dec 1905	Dec 2025	Water
Harry L. Oswald	Arkansas Electric Coop Corp	Little Rock, AR	929 GWh	Jun 2002	Dec 2025	Natural Gas
Southside SD	Entegrity Solar Southside SD, LLC	Little Rock, AR	2 GWh	May 2023	Dec 2024	Solar
Zeuber	Today's Power, Inc.	Little Rock, AR	7 GWh	Nov 2023	Dec 2025	Solar
LRWRA	Entegrity Solar LRWRA, LLC	Little Rock, AR	2 GWh	Jul 2023	Dec 2024	Solar
RC Thomas Hydroelectric Project	East Texas Electric Coop, Inc	Livingston, TX	114 GWh	Jun 2020	May 2026	Water
Umbriel Solar	Umbriel Solar, LLC	Livington, TX	317 GWh	Sep 2023	May 2026	Solar
Mondu Solar LLC	Mondu Solar LLC	Livonia, LA	22 GWh	-	May 2026	Solar
Appleseed Solar	Appleseed Solar, LLC	Logansport, IN	306 GWh	Jul 2025	May 2026	Solar
Logansport Solar	Cardinal Renewables	Logansport, IN	20 GWh	Aug 2021	Dec 2025	Solar
Oak Ridge LFGTE	Wabash Valley Power Assn, Inc	Logansport, IN	23 GWh	Nov 2003	Dec 2025	Landfill Gas
Springfield Solar (WI)	Wisconsin Power & Light Co	Lomira, WI	206 GWh	Nov 2023	May 2026	Solar
Bear Creek (WI)	Wisconsin Power & Light Co	Lone Rock, WI	100 GWh	Aug 2022	May 2026	Solar
Briscoe 2A	7th Road Solar 2, LLC (Briscoe 2A)	Lostant, IL	5 GWh	Jan 2023	Dec 2025	Solar
Clay FC	Clay FC, LLC	Louisville, IL	4 GWh	Jun 2021	Dec 2025	Solar
Maple Flats	Invenergy Services LLC	Louisville, IL	503 GWh	Oct 2024	May 2026	Solar
Byrne Solar, LLC	Byrne Solar, LLC	Lowell, MI	10 GWh	Sep 2023	Dec 2025	Solar
Chatham	City of Lowell - (MI)	Lowell, MI	103 MWh	Aug 2013	Dec 2025	Natural Gas
Kossuth	Wisconsin Power & Light Co	Lu Verne, IA	539 GWh	Sep 2020	May 2026	Wind
Kossuth County Wind	Kossuth County Wind, LLC	Lu Verne, IA	278 GWh	Nov 2022	May 2026	Wind
Luck	OneEnergy, Inc.	Luck, WI	85 MWh	Nov 2025	Dec 2025	Solar
Michigan Power LP	Michigan Power Limited Partnership	Ludington, MI	1 TWh	Sep 1995	Dec 2024	Natural Gas
Lake Winds Energy Park	Consumers Energy Co - (MI)	Ludington, MI	251 GWh	Oct 2012	Dec 2025	Wind
Rock County Wind Fuel, LLC	Rock County Wind Fuel, LLC	Luverne, MN	17 GWh	Apr 2020	Dec 2025	Wind
Minwind	Community Renewables, LLC	Luverne, MN	516 MWh	Sep 2002	Dec 2025	Wind
Ashtabula Wind II LLC	Ashtabula Wind II LLC	Luverne, ND	364 GWh	Sep 2009	Dec 2025	Wind
FPL Energy Ashtabula Wind LLC	FPL Energy Ashtabula Wind LLC	Luverne, ND	583 GWh	Nov 2008	Dec 2025	Wind
Luverne Wind Energy Center	Otter Tail Power Co	Luverne, ND	151 GWh	Aug 2009	Dec 2025	Wind
Ashtabula Wind Energy Center	Otter Tail Power Co	Luverne, ND	89 GWh	Sep 2008	Dec 2025	Wind
Ashtabula Wind III LLC	Otter Tail Power Co	Luverne, ND	120 GWh	Nov 2010	Dec 2025	Wind
Lightfoot Solar, LLC	Lightfoot Solar, LLC	Luzerne, MI	18 GWh	Sep 2023	Dec 2025	Solar
Yorktown 2 Solar	SoCore Energy LLC	Lyndon, IL	4 GWh	Dec 2023	Dec 2025	Solar
Round Grove 1	SoCore Energy LLC	Lyndon, IL	4 GWh	Oct 2021	Dec 2025	Solar
Bunker Hill Solar	SoCore Energy LLC	Lyndon, IL	4 GWh	Oct 2021	Dec 2025	Solar
Round Grove 2	SoCore Energy LLC	Lyndon, IL	5 GWh	Oct 2021	Dec 2025	Solar
Yorktown 1 Solar	SoCore Energy LLC	Lyndon, IL	4 GWh	Dec 2023	Dec 2025	Solar
Webber	Consumers Energy Co - (MI)	Lyons, MI	10 GWh	Dec 1906	Dec 2025	Water
Macksburg Wind Project	MidAmerican Energy Co	Macksburg, IA	249 GWh	Nov 2014	Dec 2025	Wind
Macomb 2A	SoCore Energy LLC	Macomb, IL	4 GWh	Nov 2024	Dec 2025	Solar
Sullivan B Community Solar LLC	Sullivan B Community Solar LLC	Macomb, IL	4 GWh	Nov 2020	Dec 2025	Solar
Hermsdorf Solar	Madison Gas & Electric Co	Madison, WI	16 GWh	Feb 2022	Dec 2025	Solar
Dane County Airport Solar	Madison Gas & Electric Co	Madison, WI	17 GWh	Nov 2020	Dec 2025	Solar
Diesel Generators	Madison Gas & Electric Co	Madison, WI	1 GWh	May 2001	May 2026	Distillate Fuel Oil
Blount Street	Madison Gas & Electric Co	Madison, WI	59 GWh	May 1957	Dec 2025	Natural Gas
Sycamore (WI)	Madison Gas & Electric Co	Madison, WI	28 MWh	Nov 1967	Dec 2025	Natural Gas
Nine Springs	Madison Gas & Electric Co	Madison, WI	89 MWh	Nov 1964	Dec 2025	Natural Gas
West Campus Cogeneration Facility	Madison Gas & Electric Co	Madison, WI	305 GWh	Mar 2005	Dec 2025	Natural Gas
Remmel	Entergy Arkansas LLC	Malvern, AR	46 GWh	Dec 1924	Dec 2025	Water
Hot Spring Generating Facility	Entergy Arkansas LLC	Malvern, AR	3 TWh	May 2002	May 2026	Natural Gas
Magnet Cove	Arkansas Electric Coop Corp	Malvern, AR	4 TWh	Jun 2005	May 2026	Natural Gas
CED Manchester Wind	RWE Clean Energy	Manchester, IA	28 GWh	Mar 2022	Dec 2025	Wind
Independence Wind Farm	Independence Wind Energy LLC	Manchester, IA	205 GWh	Nov 2021	May 2026	Wind
Oliver Wind III, LLC	Oliver Wind III, LLC	Mandan, ND	366 GWh	Dec 2016	May 2026	Wind
R M Heskett	Montana-Dakota Utilities Co	Mandan, ND	62 GWh	Oct 1954	May 2026	Natural Gas
Manistique	Cloverland Electric Co-op	Manistique, MI	1 GWh	Jun 1960	Dec 2025	Distillate Fuel Oil
Custer Energy Center	Manitowoc Public Utilities	Manitowoc, WI	4 GWh	May 1999	Dec 2025	Natural Gas
Manitowoc	Manitowoc Public Utilities	Manitowoc, WI	178 GWh	May 1955	May 2026	Wood/Wood Waste Solids : 88.2% Petroleum Coke : 6.6% Bituminous Coal : 4.9%
Archer Daniels Midland Mankato	Archer Daniels Midland Co	Mankato, MN	22 GWh	Sep 1987	Dec 2024	Natural Gas
Mankato Energy Center	MEC Holdings, LLC	Mankato, MN	3 TWh	Jun 2006	Dec 2025	Natural Gas
Wilmarth	Northern States Power Co - Minnesota	Mankato, MN	97 GWh	Aug 1948	May 2026	Non-biogenic Municipal Solid Waste : 53.8% Biogenic Municipal Solid Waste : 44.0% Natural Gas : 2.1%
USS Peach Solar LLC	United States Solar Corporation	Mankato, MN	2 GWh	Jun 2022	Dec 2025	Solar
USS Jayhawk Solar LLC (CSG)	United States Solar Corporation	Mankato, MN	2 GWh	Nov 2023	Dec 2025	Solar
MN CSG 2019-16 LLC	MN CSG 2019-16 LLC	Mankato, MN	2 GWh	May 2022	Dec 2025	Solar
SolarClub 35 LLC	Nautilus Solar Solutions	Mankato, MN	2 GWh	Nov 2020	Dec 2025	Solar
Primrose Solar, LLC	Geronimo Power	Mankato, MN	2 GWh	Mar 2021	Dec 2024	Solar
CF Novel Solar CSG Gardens Eleven, LLC	SunStrong Management, LLC	Mankato, MN	5 GWh	Nov 2017	Dec 2025	Solar
School Sisters CSG	School Sisters CSG LLC	Mankato, MN	2 GWh	Apr 2018	Dec 2025	Solar
Corvus Community Solar	Corvus Community Solar	Mankato, MN	8 GWh	Sep 2018	Dec 2025	Solar
Eastwood Solar	Enel Green Power NA, Inc.	Mankato, MN	11 GWh	Nov 2016	Dec 2025	Solar
Roeder Family Wind Farm LLC	RWE Clean Energy	Manly, IA	5 GWh	Aug 2011	Dec 2025	Wind
Mansfield Mill	IPC-Mansfield Mill	Mansfield, LA	855 GWh	Sep 1981	May 2026	Natural Gas : 52.4% Black Liquor : 33.9% Wood/Wood Waste Solids : 12.4% Tire-derived Fuels : 1.4%
Kankakee Solar 3	Pivot Energy	Manteno, IL	3 GWh	Oct 2024	Dec 2025	Solar
Novel Benedix Solar CSG	REA Investments, LLC	Mantorville, MN	2 GWh	Nov 2020	Dec 2025	Solar
Novel Wayne Solar LLC CSG	REA Investments, LLC	Mantorville, MN	2 GWh	Dec 2020	Dec 2025	Solar
Novel Debra Solar LLC CSG	REA Investments, LLC	Mantorville, MN	2 GWh	Nov 2020	Dec 2025	Solar
Maple Lake	Great River Energy	Maple Lake, MN	321 MWh	Apr 1978	Dec 2025	Distillate Fuel Oil
CED Peoria Solar	Bay4 Energy Services, LLC	Mapleton, IL	4 GWh	Apr 2021	Dec 2025	Solar
Schull CSG	Schull CSG LLC	Mapleton, MN	2 GWh	Oct 2021	Dec 2025	Solar
Mapleton Community Solar	Mapleton Community Solar	Mapleton, MN	5 GWh	May 2017	Dec 2025	Solar
Novel - OYA of Mapleton CSG	NRG MN Community LLC	Mapleton, MN	6 GWh	Jun 2018	Dec 2025	Solar
Iowa Hydro LLC	Zero6 Energy Hydro	Maquoketa, IA	6 GWh	Dec 1923	May 2026	Water
Marceline	City of Marceline - (MO)	Marceline, MO	20 MWh	Jul 1989	Dec 2025	Distillate Fuel Oil
Park Mill	Eagle Creek Renewable Energy, LLC	Marinette, WI	4 GWh	Dec 1919	Dec 2025	Water
Marion	Southern Illinois Power Coop	Marion, IL	798 GWh	May 1963	May 2026	Bituminous Coal : 86.6% Natural Gas : 12.8% Distillate Fuel Oil : 0.6%

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