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
Altair Community Solar Garden	National Grid Renewables	New Richmond, MN	2 GWh	Jan 2019	Dec 2024	Solar
Hydra Community Solar Garden, LLC (CSG)	National Grid Renewables	Dundas, MN	2 GWh	Apr 2020	Dec 2024	Solar
Temperance Solar, LLC	National Grid Renewables	Erie, MI	40 GWh	Nov 2020	Dec 2024	Solar
Bingham Solar, LLC	National Grid Renewables	St. Johns, MI	41 GWh	Nov 2020	Dec 2024	Solar
Iris Solar, LLC (MN)	National Grid Renewables	Nicollet, MN	2 GWh	Sep 2020	Dec 2024	Solar
Bellflower Solar, LLC	National Grid Renewables	Brooten, MN	2 GWh	Nov 2020	Dec 2024	Solar
Geranium Solar, LLC	National Grid Renewables	Raymond, MN	2 GWh	Sep 2020	Dec 2024	Solar
Kerria Solar, LLC	National Grid Renewables	Renville, MN	2 GWh	Sep 2020	Dec 2024	Solar
Primrose Solar, LLC	National Grid Renewables	Mankato, MN	2 GWh	Mar 2021	Dec 2024	Solar
Coral Bells Solar, LLC	National Grid Renewables	North Branch, MN	2 GWh	Nov 2020	Dec 2024	Solar
Hyacinth Solar, LLC	National Grid Renewables	Northfield, MN	2 GWh	Sep 2020	Dec 2024	Solar
Lantana Solar, LLC	National Grid Renewables	Glenwood, MN	2 GWh	Dec 2020	Dec 2024	Solar
Honeysuckle Solar, LLC	National Grid Renewables	Lester Prairie, MN	2 GWh	Dec 2020	Dec 2024	Solar
Marigold Community Solar Garden, LLC	National Grid Renewables	Waterville, MN	2 GWh	Dec 2020	Dec 2024	Solar
Westport Community Solar, LLC	National Grid Renewables	Lake Lillian, MN	2 GWh	Dec 2020	Dec 2024	Solar
Kaus Community Solar	National Grid Renewables	Claremont, MN	2 GWh	Dec 2018	Dec 2024	Solar
Leo Community Solar	National Grid Renewables	Hadley, MN	2 GWh	Nov 2018	Dec 2024	Solar
Kramer Solar CSG	National Grid Renewables	Hector, MN	6 GWh	Nov 2017	Dec 2024	Solar
Capricornus Community Solar Garden	National Grid Renewables	Paynsville, MN	2 GWh	Dec 2018	Dec 2024	Solar
Allium Community Solar Garden, LLC	National Grid Renewables	Paynesville, MN	2 GWh	Dec 2020	Dec 2024	Solar
Aquila Community Solar	National Grid Renewables	Glenwood, MN	2 GWh	Feb 2019	Dec 2024	Solar
Acturus Community Solar	National Grid Renewables	Kasota, MN	2 GWh	Nov 2018	Dec 2024	Solar
Auriga Community Solar	National Grid Renewables	Slayton, MN	2 GWh	Nov 2018	Dec 2024	Solar
Canopus Community Solar	National Grid Renewables	Belgrade, MN	2 GWh	Feb 2019	Dec 2024	Solar
Sagitta Community Solar	National Grid Renewables	Clara City, MN	2 GWh	Nov 2018	Dec 2024	Solar
Aster Community Solar Garden, LLC	National Grid Renewables	Raymond, MN	2 GWh	Sep 2020	Dec 2024	Solar
Libra Community Solar	National Grid Renewables	Glenwood, MN	2 GWh	Oct 2018	Dec 2024	Solar
Aquarius Community Solar	National Grid Renewables	Tracy, MN	2 GWh	Apr 2019	Dec 2024	Solar
Cassiopeia Community Solar	National Grid Renewables	Glenwood, MN	2 GWh	Feb 2019	Dec 2024	Solar
Crux Community Solar	National Grid Renewables	Kasson, MN	2 GWh	Dec 2018	Dec 2024	Solar
Deneb Community Solar	National Grid Renewables	Belgrade, MN	2 GWh	Apr 2019	Dec 2024	Solar
Fillmore County Solar Project	National Grid Renewables	Spring Valley, MN	76 GWh	Nov 2024	Sep 2025	Solar
Unbridled Solar	National Grid Renewables	Robards, KY	232 GWh	-	Sep 2025	Solar
Louise Solar	National Grid Renewables	Taopi, MN	83 GWh	Nov 2024	Sep 2025	Solar
National Energy of Lincoln	National Salvage & Service Corporation	Lincoln, MI	130 GWh	Dec 1988	Jun 2024	Wood/Wood Waste Solids : 81.0% Tire-derived Fuels : 18.9%
National Energy of McBain	National Salvage & Service Corporation	McBain, MI	122 GWh	Nov 1988	Dec 2024	Wood/Wood Waste Solids : 88.5% Tire-derived Fuels : 11.2%
Stewart CSG1, LLC	Nautilus Solar Solutions	Stewart, MN	2 GWh	Jul 2021	Dec 2024	Solar
Sacred Heart CSG1, LLC	Nautilus Solar Solutions	Sacred Heart, MN	2 GWh	Jul 2021	Dec 2024	Solar
Brooten CSG1, LLC	Nautilus Solar Solutions	Brooten, MN	2 GWh	Jul 2021	Dec 2024	Solar
Buffalo Lake CSG1, LLC	Nautilus Solar Solutions	Buffalo Lake, MN	2 GWh	Jul 2021	Dec 2024	Solar
Lowry CSG2, LLC	Nautilus Solar Solutions	Glenwood, MN	2 GWh	Nov 2020	Dec 2024	Solar
Paynesville CSG1, LLC	Nautilus Solar Solutions	Paynesville, MN	2 GWh	Dec 2020	Dec 2024	Solar
Plato CSG1, LLC	Nautilus Solar Solutions	Glencoe, MN	2 GWh	Dec 2020	Dec 2024	Solar
Nautilus Lindstrom Solar (CSG)	Nautilus Solar Solutions	Lindstrom, MN	3 GWh	Feb 2019	Sep 2025	Solar
Nautilus Winsted Solar (CSG)	Nautilus Solar Solutions	Winsted, MN	5 GWh	Mar 2019	Sep 2025	Solar
Nautilus Saint Cloud Solar (CSG)	Nautilus Solar Solutions	Saint Cloud, MN	8 GWh	Mar 2019	Sep 2025	Solar
SolarClub 20 LLC	Nautilus Solar Solutions	Wabasha, MN	2 GWh	Nov 2020	Dec 2024	Solar
SolarClub 23 LLC	Nautilus Solar Solutions	La Crescent, MN	2 GWh	Nov 2020	Dec 2024	Solar
SolarClub 35 LLC	Nautilus Solar Solutions	Mankato, MN	2 GWh	Nov 2020	Dec 2024	Solar
SolarClub 28 LLC	Nautilus Solar Solutions	Gaylord, MN	2 GWh	Nov 2020	Dec 2024	Solar
SolarClub 10 LLC	Nautilus Solar Solutions	Monticello, MN	2 GWh	Nov 2020	Dec 2024	Solar
SolarClub 15 LLC	Nautilus Solar Solutions	Clear Lake, MN	2 GWh	Nov 2020	Dec 2024	Solar
SolarClub 03	Nautilus Solar Solutions	Starbuck, MN	2 GWh	Aug 2023	Dec 2024	Solar
SolarClub 30 (CSG)	Nautilus Solar Solutions	Eden Valley, MN	2 GWh	Dec 2023	Dec 2024	Solar
Biron Mill	ND Paper, Inc.	Wisconsin Rapids, WI	96 GWh	Aug 1947	Dec 2024	Natural Gas : 79.6% Subbituminous Coal : 20.4%
New Germany Community Solar Garden	New Germany Solar I LLC	New Germany, MN	2 GWh	Mar 2018	Dec 2024	Solar
NLMU Wind	New London Municipal Utilities	New London, IA	4 GWh	Oct 2011	Dec 2024	Wind
New Munich Solar	New Munich Solar LLC	Melrose, MN	2 GWh	Aug 2019	Dec 2024	Solar
New Ulm	New Ulm Public Utilities Comm	New Ulm, MN	2 GWh	Dec 1956	Dec 2024	Natural Gas : 95.4% Distillate Fuel Oil : 4.6%
Newport Solar Project	Newport Solar, LLC	Newport, AR	353 GWh	Sep 2023	Sep 2025	Solar
Point Beach Nuclear Plant	NextEra Energy Point Beach LLC	Two Rivers, WI	10 TWh	May 1969	Sep 2025	Nuclear
Pine Tree Acres	NextEra Renewable Fuels, LLC	Lenox Twp, MI	63 GWh	May 1998	Sep 2025	Landfill Gas
Sumpter Energy Associates	NextEra Renewable Fuels, LLC	Belleville, MI	63 GWh	Jun 1992	Dec 2024	Landfill Gas
Adrian Energy Associates LLC	NextEra Renewable Fuels, LLC	Adrian, MI	8 GWh	Nov 1994	Dec 2024	Landfill Gas
Kokomo Solar 1, LLC	NJR Clean Energy Ventures Corporation	Kokomo, IN	6 GWh	Nov 2016	Dec 2024	Solar
Spartan PV 1, LLC	NJR Clean Energy Ventures Corporation	East Lansing, MI	12 GWh	Nov 2017	Dec 2024	Solar
Nobles 2 Wind Project	Nobles 2 Power Partners, LLC	Wilmont, MN	946 GWh	Nov 2020	Sep 2025	Wind
Central Generating	North American Central - LLC	Pierson, MI	15 GWh	Aug 2018	Dec 2024	Landfill Gas
Autumn Hills Generating Facility	North American Natural Res	Zeeland, MI	9 GWh	Jun 2009	May 2024	Landfill Gas
Lennon Generating	North American Natural Res	Lennon, MI	30 GWh	Jan 2001	Dec 2024	Landfill Gas
Peoples Generating Station	North American Natural Res	Ann Arbor, MI	17 GWh	Aug 1995	Dec 2023	Landfill Gas
North Branch (MN)	North Branch Water & Light Comm	North Branch, MN	300 MWh	Sep 2003	Dec 2024	Distillate Fuel Oil
North Star Solar Project	North Star Solar PV LLC	North Branch, MN	181 GWh	Nov 2016	Sep 2025	Solar
Sugar Creek Power	Northern Indiana Pub Serv Co	West Terre Haute, IN	4 TWh	May 2002	Sep 2025	Natural Gas
R M Schahfer	Northern Indiana Pub Serv Co	Wheatfield, IN	2 TWh	Nov 1976	Sep 2025	Bituminous Coal : 93.7% Natural Gas : 6.3%
Norway (IN)	Northern Indiana Pub Serv Co	Monticello, IN	16 GWh	May 1923	Dec 2024	Water
Oakdale	Northern Indiana Pub Serv Co	Monticello, IN	17 GWh	Oct 1925	Dec 2024	Water
Michigan City	Northern Indiana Pub Serv Co	Michigan City, IN	1 TWh	Apr 1974	Sep 2025	Subbituminous Coal : 78.0% Bituminous Coal : 20.3% Natural Gas : 1.7%
Northern Lights Wind LLC	Northern Lights Wind LLC (Longroad)	Pipestone, MN	2 GWh	Nov 2004	Dec 2024	Wind
Dells	Northern States Power Co - Minnesota	Eau Claire, WI	42 GWh	Dec 1922	Dec 2024	Water
Trego	Northern States Power Co - Minnesota	Hayward, WI	7 GWh	Dec 1926	Dec 2024	Water
Nobles Wind Project	Northern States Power Co - Minnesota	Reading, MN	804 GWh	Nov 2010	Sep 2025	Wind
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%
Menomonie	Northern States Power Co - Minnesota	Menomonie, WI	24 GWh	Dec 1957	Dec 2024	Water
Cornell	Northern States Power Co - Minnesota	Chippewa Falls, WI	82 GWh	Jun 1976	Dec 2024	Water
Jeffers Wind 20 LLC	Northern States Power Co - Minnesota	Jeffers, MN	195 GWh	Sep 2008	Dec 2024	Wind
Bay Front	Northern States Power Co - Minnesota	Ashland, WI	160 GWh	Dec 1948	Dec 2024	Wood/Wood Waste Solids : 95.3% Tire-derived Fuels : 4.1% Natural Gas : 0.6%
Big Falls	Northern States Power Co - Minnesota	Glen Fora, WI	36 GWh	Dec 1921	Dec 2024	Water
Ladysmith Dam	Northern States Power Co - Minnesota	Ladysmith, WI	11 GWh	Dec 1939	Dec 2024	Water
Wissota	Northern States Power Co - Minnesota	Chippewa Falls, WI	136 GWh	Dec 1916	Dec 2024	Water
Prairie Island	Northern States Power Co - Minnesota	Welch, MN	8 TWh	Jan 1974	Sep 2025	Nuclear
Monticello Nuclear Facility	Northern States Power Co - Minnesota	Monticello, MN	5 TWh	May 1971	Sep 2025	Nuclear
Jim Falls	Northern States Power Co - Minnesota	Jim Falls, WI	122 GWh	Jun 1988	Dec 2024	Water
High Bridge	Northern States Power Co - Minnesota	St. Paul, MN	3 TWh	Apr 2008	Sep 2025	Natural Gas
Superior Falls	Northern States Power Co - Minnesota	Ironwood, MI	7 GWh	Dec 1916	Dec 2024	Water
Inver Hills	Northern States Power Co - Minnesota	Inver Grove Heights, MN	64 GWh	Mar 1972	Dec 2024	Natural Gas : 99.7%
Holcombe	Northern States Power Co - Minnesota	Holcombe, WI	93 GWh	Dec 1949	Dec 2024	Water
Chippewa Falls	Northern States Power Co - Minnesota	Chippewa Falls, WI	63 GWh	Dec 1927	Dec 2024	Water
Allen S King	Northern States Power Co - Minnesota	Oak Park Heights, MN	721 GWh	Feb 1958	Sep 2025	Subbituminous Coal : 99.7%
Saxon Falls	Northern States Power Co - Minnesota	Saxon, WI	8 GWh	Dec 1912	Dec 2024	Water

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