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%

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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
Michelangelo Wind 1 LLC	Novis Renewables, LLC	Huxley, IA	10 GWh	Feb 2017	Dec 2025	Wind
Optimum Wind 3 LLC	Novis Renewables, LLC	Nevada, IA	7 GWh	Feb 2017	Dec 2025	Wind
Optimum Wind 5 LLC	Novis Renewables, LLC	Nevada, IA	9 GWh	Feb 2017	Dec 2025	Wind
Leonardo Wind 1 LLC	Novis Renewables, LLC	Alden, IA	9 GWh	Nov 2016	Dec 2025	Wind
Novel Swenson Solar LLC CSG	Novel Swenson Solar HQ LLC	North Branch, MN	922 MWh	Apr 2025	Dec 2025	Solar
Novel Stumpf 1 Solar CSG	Novel Stumpf 1 Solar LLC	Red Wing, MN	60 MWh	Nov 2025	Dec 2025	Solar
Novel Milbradt Solar LLC	Novel Milbradt Solar HQ LLC	Belview, MN	2 GWh	Nov 2024	Dec 2025	Solar
Novel Froehle Solar LLC	Novel Froehle Solar HQ LLC	Cold Spring, MN	2 GWh	Nov 2024	Dec 2025	Solar
Novel Brock Solar LLC CSG	Novel Brock Solar HQ LLC	Clarkfield, MN	54 MWh	Nov 2025	Dec 2025	Solar
Grantsburg Diesel	Northwestern Wisconsin Elec Co	Grantsburg, WI	26 MWh	Nov 1963	Dec 2025	Distillate Fuel Oil
Grayling Generating Station	NorthStar Clean Energy	Grayling, MI	182 GWh	Apr 1992	Dec 2025	Wood/Wood Waste Solids
Genesee Power Station LP	NorthStar Clean Energy	Flint, MI	116 GWh	Nov 1995	Dec 2025	Wood/Wood Waste Solids : 99.9%
Indiana Harbor E 5 AC Station	Northlake Energy	East Chicago, IN	649 GWh	Apr 1996	Dec 2025	Blast Furnace Gas : 91.2% Natural Gas : 8.8%
Northfield Holdco CSG	Northfield Holdco LLC	Northfield, MN	8 GWh	Nov 2017	Dec 2025	Solar
Northfield Community Solar	Northfield Community Solar	Northfield, MN	8 GWh	Nov 2016	Dec 2025	Solar
Crowned Ridge Wind II Energy Center	Northern States Power Co - Minnesota	Watertown, SD	863 GWh	Nov 2020	Jul 2026	Wind
Blazing Star Wind Farm 1	Northern States Power Co - Minnesota	Hendricks, MN	851 GWh	Mar 2020	Jul 2026	Wind
Border Winds Wind Farm	Northern States Power Co - Minnesota	Rolla, ND	513 GWh	Jul 2015	Sep 2025	Wind
Pleasant Valley Wind Farm	Northern States Power Co - Minnesota	Dexter, MN	464 GWh	Jul 2015	Dec 2025	Wind
Blazing Star 2 Wind Farm	Northern States Power Co - Minnesota	Hendricks, MN	840 GWh	Dec 2020	Jul 2026	Wind
Courtenay Wind Farm	Northern States Power Co - Minnesota	Courtenay, ND	122 GWh	Nov 2016	Jul 2026	Wind
Freeborn Wind Farm	Northern States Power Co - Minnesota	Glenville, MN	769 GWh	Apr 2021	Jul 2026	Wind
Sherco Solar I	Northern States Power Co - Minnesota	Clear Lake, MN	440 GWh	Sep 2024	Jul 2026	Solar
Dakota Range Wind	Northern States Power Co - Minnesota	Marvin, SD	998 GWh	Dec 2021	Jul 2026	Wind
Sherco Solar II	Northern States Power Co - Minnesota	Becker, MN	378 GWh	Aug 2025	Jul 2026	Solar
Sherco Solar III	Northern States Power Co - Minnesota	Clear Lake, MN	74 GWh	-	Jul 2026	Solar
Northern Wind	Northern States Power Co - Minnesota	Lake Wilson, MN	341 GWh	Dec 2022	Jul 2026	Wind
Rock Aetna Power Partners	Northern States Power Co - Minnesota	Woodstock, MN	84 GWh	Nov 2022	Dec 2025	Wind
Jeffers Wind 20 LLC	Northern States Power Co - Minnesota	Jeffers, MN	196 GWh	Sep 2008	Dec 2025	Wind
Ladysmith Dam	Northern States Power Co - Minnesota	Ladysmith, WI	10 GWh	Dec 1939	Dec 2025	Water
Thornapple	Northern States Power Co - Minnesota	Bruce, WI	7 GWh	Dec 1926	Dec 2025	Water
Community Wind North LLC	Northern States Power Co - Minnesota	Verdi Township, MN	110 GWh	Apr 2011	Dec 2025	Wind
White River (WI)	Northern States Power Co - Minnesota	Ashland, WI	3 GWh	Dec 1906	Dec 2025	Water
Big Falls	Northern States Power Co - Minnesota	Glen Fora, WI	27 GWh	Dec 1921	Dec 2025	Water
Mower County Wind Energy Center	Northern States Power Co - Minnesota	Grand Meadow, MN	334 GWh	Nov 2006	Dec 2025	Wind
Bay Front	Northern States Power Co - Minnesota	Ashland, WI	177 GWh	Dec 1948	Dec 2025	Wood/Wood Waste Solids : 95.1% Tire-derived Fuels : 4.2% Natural Gas : 0.7%
Blue Lake	Northern States Power Co - Minnesota	Shakopee, MN	465 GWh	Feb 1974	Nov 2025	Natural Gas : 99.9%
Cedar Falls (WI)	Northern States Power Co - Minnesota	Menomonie, WI	31 GWh	Dec 1909	Dec 2025	Water
Wissota	Northern States Power Co - Minnesota	Chippewa Falls, WI	118 GWh	Dec 1916	Dec 2025	Water
Chippewa Falls	Northern States Power Co - Minnesota	Chippewa Falls, WI	56 GWh	Dec 1927	Dec 2025	Water
Dells	Northern States Power Co - Minnesota	Eau Claire, WI	37 GWh	Dec 1922	Dec 2025	Water
French Island	Northern States Power Co - Minnesota	La Cross, WI	68 GWh	Dec 1939	Jul 2026	Wood/Wood Waste Solids : 41.6% Non-biogenic Municipal Solid Waste : 25.4% Biogenic Municipal Solid Waste : 20.7% Distillate Fuel Oil : 12.0%
Holcombe	Northern States Power Co - Minnesota	Holcombe, WI	81 GWh	Dec 1949	Dec 2025	Water
Jim Falls	Northern States Power Co - Minnesota	Jim Falls, WI	105 GWh	Jun 1988	Dec 2025	Water
Angus Anson	Northern States Power Co - Minnesota	Sioux Falls, SD	239 GWh	Jul 1994	Dec 2025	Natural Gas : 99.9%
Menomonie	Northern States Power Co - Minnesota	Menomonie, WI	23 GWh	Dec 1957	Dec 2025	Water
Saxon Falls	Northern States Power Co - Minnesota	Saxon, WI	9 GWh	Dec 1912	Dec 2025	Water
St Croix Falls	Northern States Power Co - Minnesota	St Croix Falls, WI	80 GWh	Dec 1909	Dec 2025	Water
Trego	Northern States Power Co - Minnesota	Hayward, WI	5 GWh	Dec 1926	Dec 2025	Water
Wheaton	Northern States Power Co - Minnesota	Eau Claire, WI	17 GWh	Dec 1972	May 2025	Natural Gas : 97.4% Distillate Fuel Oil : 2.6%
Monticello Nuclear Facility	Northern States Power Co - Minnesota	Monticello, MN	5 TWh	May 1971	Jul 2026	Nuclear
Inver Hills	Northern States Power Co - Minnesota	Inver Grove Heights, MN	130 GWh	Mar 1972	Dec 2025	Natural Gas : 98.8% Distillate Fuel Oil : 1.2%
High Bridge	Northern States Power Co - Minnesota	St. Paul, MN	3 TWh	Apr 2008	Jul 2026	Natural Gas
Hennepin Island	Northern States Power Co - Minnesota	Minneapolis, MN	54 GWh	Sep 1954	Dec 2025	Water
Black Dog	Northern States Power Co - Minnesota	Burnsville, MN	870 GWh	Sep 1954	Dec 2025	Natural Gas
Nobles Wind Project	Northern States Power Co - Minnesota	Reading, MN	780 GWh	Nov 2010	Jul 2026	Wind
Apple River	Northern States Power Co - Minnesota	Somerset, WI	13 GWh	Dec 1900	Dec 2025	Water
Lake Benton II	Northern States Power Co - Minnesota	Ruthton, MN	440 GWh	May 1999	Dec 2025	Wind
Allen S King	Northern States Power Co - Minnesota	Oak Park Heights, MN	861 GWh	Feb 1958	Jul 2026	Subbituminous Coal : 99.5%
Grand Meadow	Northern States Power Co - Minnesota	Dexter, MN	379 GWh	Nov 2008	Dec 2025	Wind
Prairie Island	Northern States Power Co - Minnesota	Welch, MN	9 TWh	Jan 1974	Jul 2026	Nuclear
Superior Falls	Northern States Power Co - Minnesota	Ironwood, MI	8 GWh	Dec 1916	Dec 2025	Water
Red Wing	Northern States Power Co - Minnesota	Red Wing, MN	127 GWh	Sep 1949	Jul 2026	Non-biogenic Municipal Solid Waste : 53.4% Biogenic Municipal Solid Waste : 43.7% Wood/Wood Waste Solids : 2.3% Natural Gas : 0.6%
Sherburne County	Northern States Power Co - Minnesota	Becker, MN	6 TWh	Mar 1976	Jul 2026	Subbituminous Coal : 99.8%
Wilmarth	Northern States Power Co - Minnesota	Mankato, MN	104 GWh	Aug 1948	Jul 2026	Non-biogenic Municipal Solid Waste : 53.9% Biogenic Municipal Solid Waste : 44.1% Natural Gas : 2.1%
Cornell	Northern States Power Co - Minnesota	Chippewa Falls, WI	70 GWh	Jun 1976	Dec 2025	Water
Northern Lights Wind LLC	Northern Lights Wind LLC (Longroad)	Pipestone, MN	2 GWh	Nov 2004	Dec 2025	Wind
Oakdale	Northern Indiana Pub Serv Co	Monticello, IN	15 GWh	Oct 1925	Feb 2025	Water
Michigan City	Northern Indiana Pub Serv Co	Michigan City, IN	2 TWh	Apr 1974	Jul 2026	Subbituminous Coal : 78.0% Bituminous Coal : 20.3% Natural Gas : 1.7%
Norway (IN)	Northern Indiana Pub Serv Co	Monticello, IN	12 GWh	May 1923	Dec 2025	Water
R M Schahfer	Northern Indiana Pub Serv Co	Wheatfield, IN	773 GWh	Nov 1976	Jul 2026	Bituminous Coal : 97.4% Natural Gas : 2.6%
Sugar Creek Power	Northern Indiana Pub Serv Co	West Terre Haute, IN	4 TWh	May 2002	Jul 2026	Natural Gas
North Star Solar Project	North Star Solar PV LLC	North Branch, MN	176 GWh	Nov 2016	Jul 2026	Solar
Lowe's - 1845 - Chicago Brickyard, IL	North Narragansett Avenue Solar Project 2022, LLC	Chicago, IL	1 GWh	Jan 2025	Dec 2025	Solar
North Branch (MN)	North Branch Water & Light Comm	North Branch, MN	249 MWh	Sep 2003	Dec 2025	Distillate Fuel Oil
Lennon Generating	North American Natural Res	Lennon, MI	26 GWh	Jan 2001	Dec 2025	Landfill Gas
Central Generating	North American Central - LLC	Pierson, MI	13 GWh	Aug 2018	Dec 2025	Landfill Gas
Nobles 2 Wind Project	Nobles 2 Power Partners, LLC	Wilmont, MN	952 GWh	Nov 2020	Jul 2026	Wind
Spartan PV 1, LLC	NJR Clean Energy Ventures Corporation	East Lansing, MI	12 GWh	Nov 2017	Dec 2025	Solar
Kokomo Solar 1, LLC	NJR Clean Energy Ventures Corporation	Kokomo, IN	7 GWh	Nov 2016	Dec 2025	Solar
Nimbus Wind Farm	Nimbus Wind Farm LLC	Green Forest, AR	13 GWh	-	Jul 2026	Wind
Sumpter Energy Associates	NextEra Renewable Fuels, LLC	Belleville, MI	52 GWh	Jun 1992	Dec 2025	Landfill Gas
Pine Tree Acres	NextEra Renewable Fuels, LLC	Lenox Twp, MI	56 GWh	May 1998	Jul 2026	Landfill Gas
Adrian Energy Associates LLC	NextEra Renewable Fuels, LLC	Adrian, MI	2 GWh	Nov 1994	Dec 2025	Landfill Gas
Point Beach Nuclear Plant	NextEra Energy Point Beach LLC	Two Rivers, WI	10 TWh	May 1969	Jul 2026	Nuclear
Newport Solar Project	Newport Solar, LLC	Newport, AR	352 GWh	Sep 2023	Jul 2026	Solar
NL IL - Kendall	Newark Road Kendall Solar 1, LLC	Newark, IL	4 GWh	Nov 2024	Dec 2025	Solar
New Ulm	New Ulm Public Utilities Comm	New Ulm, MN	2 GWh	Dec 1956	Dec 2025	Natural Gas : 59.1% Distillate Fuel Oil : 40.9%
New Prague	New Prague Utilities Comm	New Prague, MN	1 GWh	Jul 1944	Dec 2025	Natural Gas : 76.4% Distillate Fuel Oil : 23.6%
New Munich Solar	New Munich Solar LLC	Melrose, MN	2 GWh	Aug 2019	Dec 2025	Solar
New Madrid Solar, LLC	New Madrid Solar, LLC	Marston, MO	351 GWh	Oct 2025	Jul 2026	Solar
NLMU Wind	New London Municipal Utilities - (IA)	New London, IA	5 GWh	Oct 2011	Dec 2025	Wind
New Germany Community Solar Garden	New Germany Solar I LLC	New Germany, MN	2 GWh	Mar 2018	Dec 2025	Solar
Biron Mill	ND Paper, Inc.	Wisconsin Rapids, WI	114 GWh	Aug 1947	Dec 2025	Natural Gas
Nautilus Lindstrom Solar (CSG)	Nautilus Solar Solutions	Lindstrom, MN	4 GWh	Feb 2019	Jul 2026	Solar
Nautilus Saint Cloud Solar (CSG)	Nautilus Solar Solutions	Saint Cloud, MN	8 GWh	Mar 2019	Jul 2026	Solar
Nautilus Winsted Solar (CSG)	Nautilus Solar Solutions	Winsted, MN	5 GWh	Mar 2019	Jul 2026	Solar
Lowry CSG2, LLC	Nautilus Solar Solutions	Glenwood, MN	2 GWh	Nov 2020	Dec 2025	Solar
Sacred Heart CSG1, LLC	Nautilus Solar Solutions	Sacred Heart, MN	2 GWh	Jul 2021	Dec 2025	Solar
Stewart CSG1, LLC	Nautilus Solar Solutions	Stewart, MN	2 GWh	Jul 2021	Dec 2025	Solar

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