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
Cassiopeia Community Solar	Geronimo Power	Glenwood, MN	2 GWh	Feb 2019	Dec 2025	Solar
Crux Community Solar	Geronimo Power	Kasson, MN	2 GWh	Dec 2018	Dec 2025	Solar
Leo Community Solar	Geronimo Power	Hadley, MN	2 GWh	Nov 2018	Dec 2025	Solar
Deneb Community Solar	Geronimo Power	Belgrade, MN	2 GWh	Apr 2019	Dec 2024	Solar
Westport Community Solar, LLC	Geronimo Power	Lake Lillian, MN	2 GWh	Dec 2020	Dec 2025	Solar
Kaus Community Solar	Geronimo Power	Claremont, MN	2 GWh	Dec 2018	Dec 2024	Solar
Allium Community Solar Garden, LLC	Geronimo Power	Paynesville, MN	2 GWh	Dec 2020	Dec 2025	Solar
Marigold Community Solar Garden, LLC	Geronimo Power	Waterville, MN	2 GWh	Dec 2020	Dec 2025	Solar
Bingham Solar, LLC	Geronimo Power	St. Johns, MI	42 GWh	Nov 2020	Dec 2025	Solar
Iris Solar, LLC (MN)	Geronimo Power	Nicollet, MN	2 GWh	Sep 2020	Dec 2025	Solar
Bellflower Solar, LLC	Geronimo Power	Brooten, MN	2 GWh	Nov 2020	Dec 2025	Solar
Geranium Solar, LLC	Geronimo Power	Raymond, MN	2 GWh	Sep 2020	Dec 2024	Solar
Kerria Solar, LLC	Geronimo Power	Renville, MN	2 GWh	Sep 2020	Dec 2025	Solar
Primrose Solar, LLC	Geronimo Power	Mankato, MN	2 GWh	Mar 2021	Dec 2024	Solar
Coral Bells Solar, LLC	Geronimo Power	North Branch, MN	2 GWh	Nov 2020	Dec 2025	Solar
Honeysuckle Solar, LLC	Geronimo Power	Lester Prairie, MN	2 GWh	Dec 2020	Dec 2024	Solar
Hyacinth Solar, LLC	Geronimo Power	Northfield, MN	2 GWh	Sep 2020	Dec 2025	Solar
Lantana Solar, LLC	Geronimo Power	Glenwood, MN	2 GWh	Dec 2020	Dec 2025	Solar
Canopus Community Solar	Geronimo Power	Belgrade, MN	2 GWh	Feb 2019	Dec 2024	Solar
Camellia Solar, LLC	Geronimo Power	Glenwood, MN	2 GWh	Nov 2020	Dec 2025	Solar
Prairie Wolf Solar LLC	Geronimo Power	North Ashmore, IL	376 GWh	Oct 2021	May 2026	Solar
Kramer Solar CSG	Geronimo Power	Hector, MN	6 GWh	Nov 2017	Dec 2025	Solar
Marmas Solar CSG	Geronimo Power	St. Cloud, MN	5 GWh	Mar 2018	Dec 2025	Solar
WasecaSun	Geronimo Power	Waseca, MN	9 GWh	Jan 2018	Dec 2025	Solar
DodgeSun CSG	Geronimo Power	Kasson, MN	9 GWh	Nov 2017	Dec 2024	Solar
Johnson Solar CSG	Geronimo Power	Edgerton, MN	9 GWh	Dec 2017	Dec 2025	Solar
Koppelman Sun CSG	Geronimo Power	Eagle Lake, MN	9 GWh	Oct 2017	Dec 2025	Solar
Lindstrom Solar CSG	Geronimo Power	Lindstrom, MN	5 GWh	Mar 2018	Dec 2025	Solar
Rengstorf Solar CSG	Geronimo Power	Coutland, MN	9 GWh	Oct 2017	Dec 2025	Solar
St. Cloud Solar CSG	Geronimo Power	St. Cloud, MN	8 GWh	Mar 2018	Dec 2025	Solar
Hydra Community Solar Garden, LLC (CSG)	Geronimo Power	Dundas, MN	2 GWh	Apr 2020	Dec 2025	Solar
Altair Community Solar Garden	Geronimo Power	New Richmond, MN	2 GWh	Jan 2019	Dec 2025	Solar
Capricornus Community Solar Garden	Geronimo Power	Paynsville, MN	2 GWh	Dec 2018	Dec 2025	Solar
Aquila Community Solar	Geronimo Power	Glenwood, MN	2 GWh	Feb 2019	Dec 2025	Solar
Acturus Community Solar	Geronimo Power	Kasota, MN	2 GWh	Nov 2018	Dec 2024	Solar
Auriga Community Solar	Geronimo Power	Slayton, MN	2 GWh	Nov 2018	Dec 2025	Solar
Sagitta Community Solar	Geronimo Power	Clara City, MN	2 GWh	Nov 2018	Dec 2024	Solar
Georgia-Pacific Monticello Paper	Georgia-Pacific Monticello LLC	Monticello, MS	550 GWh	May 1968	Dec 2024	Black Liquor : 47.2% Natural Gas : 40.2% Wood/Wood Waste Solids : 12.6%
Consumer Operations LLC	Georgia-Pacific Consumer Oper. Green Bay LLC	Green Bay, WI	239 GWh	Dec 1953	May 2026	Natural Gas
Genesee Solar Project	Genesee Solar Energy, LLC	Flint, MI	29 GWh	Nov 2025	May 2026	Solar
Fremont Community Digester, LLC	Generate Fremont Digester, LLC.	Newaygo, MI	375 MWh	Nov 2012	Dec 2024	Other Biomass Gas
MontSun Community Solar	Generate Capital	Montrose, MN	9 GWh	Nov 2017	Dec 2025	Solar
WaveSun Community Solar	Generate Capital	Waverly, MN	8 GWh	Nov 2017	Dec 2025	Solar
Cedarville (IL)	Generate Capital	Freeport, IL	4 GWh	Apr 2024	Dec 2025	Solar
Goldenrod (IL)	Generate Capital	Viola, IL	6 GWh	Jul 2025	Dec 2025	Solar
Gemini Community Solar	Gemini Community Solar	Scandia, MN	5 GWh	Aug 2017	Dec 2025	Solar
Geddes 2 Solar, LLC	Geddes 2 Solar, LLC	Saginaw, MI	4 GWh	Dec 2020	Dec 2025	Solar
Geddes 1 Solar, LLC	Geddes 1 Solar, LLC	Saginaw, MI	4 GWh	Nov 2020	Dec 2025	Solar
GRS C&C	Gas Recovery Systems Inc	Marshall, MI	21 GWh	Jan 1995	Dec 2025	Landfill Gas
GRS Arbor Hills	Gas Recovery Systems Inc	Northville, MI	1 GWh	May 1996	Mar 2026	Landfill Gas
Garden Wind LLC	Garden Wind LLC	Zearing, IA	343 GWh	Nov 2009	May 2026	Wind
Galactic Wind	Galactic Wind	Waunakee, WI	21 GWh	Nov 2012	Dec 2025	Wind
Frontenac Holdco LLC, CSG	Frontenac Holdco LLC	Frontenac, MN	8 GWh	Feb 2019	Dec 2025	Solar
French Road Solar II	French Road Solar II, LLC	Burlington, IL	4 GWh	Feb 2022	Dec 2025	Solar
Franklin Heating Station	Franklin Heating Station	Rochester, MN	63 GWh	Dec 1950	May 2026	Natural Gas : 82.3% Purchased Steam : 16.4% Distillate Fuel Oil : 1.2%
Franklin CSG 1	Franklin CSG 1 LLC	Franklin, MN	913 MWh	Jun 2025	Dec 2025	Solar
FPL Energy Story Wind LLC	FPL Energy Story Wind LLC	Zearing, IA	571 GWh	Nov 2008	May 2026	Wind
FPL Energy Oliver Wind II LLC	FPL Energy Oliver County Wind II LLC	Center, ND	189 GWh	Nov 2007	Dec 2025	Wind
FPL Energy Oliver Wind I LLC	FPL Energy Oliver County Wind	Center, ND	182 GWh	Nov 2006	Dec 2025	Wind
FPL Energy North Dakota Wind I/II	FPL Energy North Dakota Wind LLC	Edgeley, ND	121 GWh	Sep 2003	Dec 2025	Wind
Langdon Wind II LLC	FPL Energy Langdon Wind LLC	Osnabrock, ND	175 GWh	Aug 2008	Dec 2025	Wind
Langdon Renewables, LLC	FPL Energy Langdon Wind LLC	Langdon, ND	489 GWh	Nov 2007	Dec 2025	Wind
Hancock County Wind Energy Center	FPL Energy Hancock County Wind, LLC	Garner, IA	250 GWh	Nov 2002	May 2026	Wind
FPL Energy Crystal Lake Wind LLC	FPL Energy Crystal Lake Wind LLC	Britt, IA	578 GWh	Nov 2008	May 2026	Wind
FPL Energy Crystal Lake Wind II LLC	FPL Energy Crystal Lake Wind II LLC	Britt, IA	706 GWh	Dec 2008	May 2026	Wind
FPL Energy Burleigh County Wind	FPL Energy Burleigh County Wind LLC	Wilton, ND	180 GWh	Nov 2005	Dec 2025	Wind
FPL Energy Ashtabula Wind LLC	FPL Energy Ashtabula Wind LLC	Luverne, ND	583 GWh	Nov 2008	Dec 2025	Wind
Foxtail Wind, LLC	Foxtail Wind, LLC	Forbes, ND	587 GWh	Dec 2019	May 2026	Wind
Fontanelle	Forward Fontanelle Power, LLC	Fontanelle, IA	5 GWh	Jul 2012	Dec 2025	Wind
Formosa Plastics	Formosa Plastics Corp	Baton Rouge, LA	416 GWh	Apr 1985	Dec 2025	Natural Gas
Forgeview Solar	Forgeview Solar, LLC	Blytheville, AR	187 GWh	Nov 2025	May 2026	Solar
Forest Lake Solar CSG	Forest Lake Holdco LLC	Scandia, MN	7 GWh	Jun 2017	Dec 2025	Solar
Foreman's Hill Community Solar	Foreman's Hill CSG LLC	Red Wing, MN	7 GWh	Jun 2018	Dec 2024	Solar
IA - City of Ames - Airport Road	Forefront Power, LLC	Ames, IA	3 GWh	Nov 2020	Dec 2024	Solar
Ford County Wind Farm LLC	Ford Ridge	Ford County, IL	469 GWh	Feb 2022	May 2026	Wind
Flodquist Community Solar LLC CSG	Flodquist Community Solar LLC	Lindstrom, MN	2 GWh	Jul 2021	Dec 2025	Solar
Flint Hills Resources Pine Bend, LLC	Flint Hills Resources Pine Bend, LLC	Rosemount, MN	362 GWh	Apr 2019	Dec 2025	Natural Gas : 78.8% Solar : 21.2%
Flat Fork Solar	Flat Fork Solar, LLC	Wheatley, AR	339 GWh	Jul 2025	May 2026	Solar
Sidney A Murray Jr Hydroelectric	First National Bank-Commerce	Vidalia, LA	989 GWh	Apr 1990	Dec 2025	Water
Fiber Recovery, Inc.	Fiber Recovery, Inc	Ringle, WI	7 GWh	Dec 2007	Dec 2024	Landfill Gas
Fey Windfarm LLC	Fey Windfarm LLC	Woodstock, MN	4 GWh	Aug 2003	Dec 2025	Wind
Welcome Wind Turbine	Federated Rural Electric Assn	Welcome, MN	3 GWh	Apr 2008	Dec 2025	Wind
Farmington Holdco Solar	Farmington Holdco LLC	Farmington, MN	8 GWh	Jan 2017	Dec 2025	Solar
Farmers Electric Cooperative - Kalona	Farmers Electric Coop - (IA)	Kalona, IA	174 MWh	Feb 2001	Dec 2025	Distillate Fuel Oil
Falls Creek Garden	Falls Creek Garden LLC	Faribault, MN	2 GWh	Jan 2020	Oct 2025	Solar
Fairbanks Solar Project	Fairbanks Solar Energy Center LLC	Fairbanks, IN	510 GWh	Apr 2025	May 2026	Solar
ExxonMobil Beaumont Refinery	ExxonMobil Oil Corp	Beaumont, TX	4 TWh	Dec 1965	May 2026	Natural Gas : 96.6% Other Gas : 3.4%
ExxonMobil Baton Rouge Turbine Generator	Exxon Mobil Corp	Baton Rouge, LA	552 GWh	Apr 1990	Dec 2025	Natural Gas
Nicollet Garden	Excelsior Energy Capital	Courtland, MN	2 GWh	Nov 2020	Dec 2025	Solar
Lyman Garden	Excelsior Energy Capital	Northfield, MN	2 GWh	Oct 2020	Dec 2025	Solar
Silver Lake Garden	Excelsior Energy Capital	Waseca, MN	2 GWh	Dec 2020	Dec 2025	Solar
Marion Garden	Excelsior Energy Capital	Faribault, MN	2 GWh	Oct 2020	Dec 2025	Solar
Union Garden	Excelsior Energy Capital	Northfield, MN	2 GWh	Feb 2021	Dec 2025	Solar
Ewington Energy Systems, LLC	Ewington Energy Systems, LLC	Worthington, MN	81 GWh	Dec 2007	Dec 2025	Wind
Evonik Industries AG	Evonik Degussa Corporation	Lafayette, IN	7 MWh	Apr 1992	Dec 2024	Distillate Fuel Oil
Everson Garden	Everson Garden LLC	Waseca, MN	2 GWh	Apr 2022	Dec 2025	Solar
Armstrong Solar	ETCAP NES CS MN 06 LLC	Glenwood, MN	5 GWh	Feb 2018	Dec 2025	Solar
Erin Garden Solar	Erin Garden LLC	City of Green Isle, MN	2 GWh	Mar 2020	Dec 2025	Solar
Ergon Refining Vicksburg	Ergon Refining Inc	Vicksburg, MS	35 GWh	Feb 1995	Dec 2025	Natural Gas
Lake Charles Polymers	Equistar Chemicals LP	Westlake, LA	195 GWh	Aug 2011	May 2026	Natural Gas

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