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
Fontanelle	Forward Fontanelle Power, LLC	Fontanelle, IA	5 GWh	Jul 2012	Dec 2025	Wind
Foxtail Wind, LLC	Foxtail Wind, LLC	Forbes, ND	587 GWh	Dec 2019	May 2026	Wind
FPL Energy Ashtabula Wind LLC	FPL Energy Ashtabula Wind LLC	Luverne, ND	583 GWh	Nov 2008	Dec 2025	Wind
FPL Energy Burleigh County Wind	FPL Energy Burleigh County Wind LLC	Wilton, ND	180 GWh	Nov 2005	Dec 2025	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 Crystal Lake Wind LLC	FPL Energy Crystal Lake Wind LLC	Britt, IA	578 GWh	Nov 2008	May 2026	Wind
Hancock County Wind Energy Center	FPL Energy Hancock County Wind, LLC	Garner, IA	250 GWh	Nov 2002	May 2026	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
FPL Energy North Dakota Wind I/II	FPL Energy North Dakota Wind LLC	Edgeley, ND	121 GWh	Sep 2003	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 Oliver Wind II LLC	FPL Energy Oliver County Wind II LLC	Center, ND	189 GWh	Nov 2007	Dec 2025	Wind
FPL Energy Story Wind LLC	FPL Energy Story Wind LLC	Zearing, IA	571 GWh	Nov 2008	May 2026	Wind
Franklin CSG 1	Franklin CSG 1 LLC	Franklin, MN	913 MWh	Jun 2025	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%
French Road Solar II	French Road Solar II, LLC	Burlington, IL	4 GWh	Feb 2022	Dec 2025	Solar
Frontenac Holdco LLC, CSG	Frontenac Holdco LLC	Frontenac, MN	8 GWh	Feb 2019	Dec 2025	Solar
Galactic Wind	Galactic Wind	Waunakee, WI	21 GWh	Nov 2012	Dec 2025	Wind
Garden Wind LLC	Garden Wind LLC	Zearing, IA	343 GWh	Nov 2009	May 2026	Wind
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
Geddes 1 Solar, LLC	Geddes 1 Solar, LLC	Saginaw, MI	4 GWh	Nov 2020	Dec 2025	Solar
Geddes 2 Solar, LLC	Geddes 2 Solar, LLC	Saginaw, MI	4 GWh	Dec 2020	Dec 2025	Solar
Gemini Community Solar	Gemini Community Solar	Scandia, MN	5 GWh	Aug 2017	Dec 2025	Solar
WaveSun Community Solar	Generate Capital	Waverly, MN	8 GWh	Nov 2017	Dec 2025	Solar
MontSun Community Solar	Generate Capital	Montrose, MN	9 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
Fremont Community Digester, LLC	Generate Fremont Digester, LLC.	Newaygo, MI	375 MWh	Nov 2012	Dec 2024	Other Biomass Gas
Genesee Solar Project	Genesee Solar Energy, LLC	Flint, MI	29 GWh	Nov 2025	May 2026	Solar
Consumer Operations LLC	Georgia-Pacific Consumer Oper. Green Bay LLC	Green Bay, WI	239 GWh	Dec 1953	May 2026	Natural Gas
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%
Lantana Solar, LLC	Geronimo Power	Glenwood, MN	2 GWh	Dec 2020	Dec 2025	Solar
Auriga Community Solar	Geronimo Power	Slayton, MN	2 GWh	Nov 2018	Dec 2025	Solar
Acturus Community Solar	Geronimo Power	Kasota, MN	2 GWh	Nov 2018	Dec 2024	Solar
Aquila Community Solar	Geronimo Power	Glenwood, MN	2 GWh	Feb 2019	Dec 2025	Solar
Deneb Community Solar	Geronimo Power	Belgrade, MN	2 GWh	Apr 2019	Dec 2024	Solar
Primrose Solar, LLC	Geronimo Power	Mankato, MN	2 GWh	Mar 2021	Dec 2024	Solar
Camellia Solar, LLC	Geronimo Power	Glenwood, MN	2 GWh	Nov 2020	Dec 2025	Solar
Coral Bells Solar, LLC	Geronimo Power	North Branch, MN	2 GWh	Nov 2020	Dec 2025	Solar
Hyacinth Solar, LLC	Geronimo Power	Northfield, MN	2 GWh	Sep 2020	Dec 2025	Solar
Bellflower Solar, LLC	Geronimo Power	Brooten, MN	2 GWh	Nov 2020	Dec 2025	Solar
WasecaSun	Geronimo Power	Waseca, MN	9 GWh	Jan 2018	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
Marmas Solar CSG	Geronimo Power	St. Cloud, MN	5 GWh	Mar 2018	Dec 2025	Solar
Capricornus Community Solar Garden	Geronimo Power	Paynsville, MN	2 GWh	Dec 2018	Dec 2025	Solar
Aster Community Solar Garden, LLC	Geronimo Power	Raymond, MN	2 GWh	Sep 2020	Dec 2025	Solar
Honeysuckle Solar, LLC	Geronimo Power	Lester Prairie, MN	2 GWh	Dec 2020	Dec 2024	Solar
Kramer Solar CSG	Geronimo Power	Hector, MN	6 GWh	Nov 2017	Dec 2025	Solar
Westport Community Solar, LLC	Geronimo Power	Lake Lillian, MN	2 GWh	Dec 2020	Dec 2025	Solar
Marigold Community Solar Garden, LLC	Geronimo Power	Waterville, MN	2 GWh	Dec 2020	Dec 2025	Solar
Canopus Community Solar	Geronimo Power	Belgrade, MN	2 GWh	Feb 2019	Dec 2024	Solar
Lindstrom Solar CSG	Geronimo Power	Lindstrom, MN	5 GWh	Mar 2018	Dec 2025	Solar
St. Cloud Solar CSG	Geronimo Power	St. Cloud, MN	8 GWh	Mar 2018	Dec 2025	Solar
Aquarius Community Solar	Geronimo Power	Tracy, MN	2 GWh	Apr 2019	Dec 2025	Solar
Koppelman Sun CSG	Geronimo Power	Eagle Lake, MN	9 GWh	Oct 2017	Dec 2025	Solar
Johnson Solar CSG	Geronimo Power	Edgerton, MN	9 GWh	Dec 2017	Dec 2025	Solar
Libra Community Solar	Geronimo Power	Glenwood, MN	2 GWh	Oct 2018	Dec 2025	Solar
Hydra Community Solar Garden, LLC (CSG)	Geronimo Power	Dundas, MN	2 GWh	Apr 2020	Dec 2025	Solar
DodgeSun CSG	Geronimo Power	Kasson, MN	9 GWh	Nov 2017	Dec 2024	Solar
Cassiopeia Community Solar	Geronimo Power	Glenwood, MN	2 GWh	Feb 2019	Dec 2025	Solar
Sagitta Community Solar	Geronimo Power	Clara City, MN	2 GWh	Nov 2018	Dec 2024	Solar
Kerria Solar, LLC	Geronimo Power	Renville, MN	2 GWh	Sep 2020	Dec 2025	Solar
Prairie Wolf Solar LLC	Geronimo Power	North Ashmore, IL	376 GWh	Oct 2021	May 2026	Solar
Crux Community Solar	Geronimo Power	Kasson, MN	2 GWh	Dec 2018	Dec 2025	Solar
Altair Community Solar Garden	Geronimo Power	New Richmond, MN	2 GWh	Jan 2019	Dec 2025	Solar
Temperance Solar, LLC	Geronimo Power	Erie, MI	42 GWh	Nov 2020	Dec 2025	Solar
Leo Community Solar	Geronimo Power	Hadley, MN	2 GWh	Nov 2018	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
Rengstorf Solar CSG	Geronimo Power	Coutland, MN	9 GWh	Oct 2017	Dec 2025	Solar
Geranium Solar, LLC	Geronimo Power	Raymond, MN	2 GWh	Sep 2020	Dec 2024	Solar
Unbridled Solar	Geronimo Power	Robards, KY	316 GWh	Feb 2025	May 2026	Solar
Louise Solar	Geronimo Power	Taopi, MN	91 GWh	Nov 2024	May 2026	Solar
Fillmore County Solar Project	Geronimo Power	Spring Valley, MN	81 GWh	Nov 2024	May 2026	Solar
Apple River Solar, LLC	Geronimo Power	Amery, WI	82 GWh	Nov 2025	May 2026	Solar
Gibson City Energy Center LLC	Gibson City Energy Center LLC	Gibson City, IL	109 GWh	May 2000	Dec 2024	Natural Gas
Gibson Solar	Gibson Solar, LLC	Princeton, IN	294 GWh	Jul 2025	May 2026	Solar
GL Wind	GL Wind LLC	Lewiston, MN	10 GWh	Nov 2011	Dec 2025	Wind
Glacier Sands Wind Power, LLC	Glacier Sands Wind Power, LLC	Mason City, IL	629 GWh	Oct 2021	May 2026	Wind
Glencoe	Glencoe Light & Power Comm	Glencoe, MN	146 MWh	May 1957	Dec 2025	Distillate Fuel Oil : 99.7%
Gowrie	Gowrie Municipal Utilities - (IA)	Gowrie, IA	3 MWh	Dec 2012	Dec 2025	Distillate Fuel Oil
Grant County Wind LLC	Grant County Wind, LLC	Woodstock, MN	53 GWh	Jul 2010	Dec 2025	Wind
Plant 31 Paper Mill	Graphic Packaging International	West Monroe, LA	515 GWh	Dec 1963	Dec 2025	Natural Gas : 62.4% Black Liquor : 25.3% Wood/Wood Waste Solids : 12.3%
Beaver Island	Great Lakes Energy Coop	Beaver Island, MI	50 MWh	Aug 2000	Dec 2025	Distillate Fuel Oil
Great Pathfinder Wind	Great Pathfinder Wind	Stratford, IA	731 GWh	Jan 2023	May 2026	Wind
Dickinson Solar Array	Great River Energy	Buffalo, MN	2 GWh	Jul 2016	Dec 2025	Solar
Pleasant Valley (MN)	Great River Energy	Dexter, MN	157 GWh	Apr 2001	Dec 2025	Natural Gas : 99.2% Distillate Fuel Oil : 0.8%
St Bonifacius	Great River Energy	St. Bonifacius, MN	3 GWh	May 1978	Dec 2025	Distillate Fuel Oil
Lakefield Junction	Great River Energy	Trimont, MN	95 GWh	May 2001	Dec 2025	Natural Gas : 99.8%
Rock Lake CT	Great River Energy	Pine City, MN	449 MWh	Mar 1978	Dec 2025	Distillate Fuel Oil
Cambridge CT Hybrid	Great River Energy	Cambridge, MN	101 GWh	Apr 1978	Dec 2025	Natural Gas : 91.7% Distillate Fuel Oil : 8.3%
Elk River	Great River Energy	Elk River, MN	155 GWh	Dec 1950	May 2026	Natural Gas : 90.8% Distillate Fuel Oil : 9.2%
Maple Lake	Great River Energy	Maple Lake, MN	321 MWh	Apr 1978	Dec 2025	Distillate Fuel Oil
Spiritwood Station	Great River Energy	Spiritwood, ND	213 GWh	Oct 2014	May 2026	Natural Gas : 58.1% Refined Coal : 41.9%
Green Cow Power	Green Cow Power LLC	Goshen, IN	11 GWh	Mar 2015	Dec 2025	Other Biomass Gas
Green Energy Machine	Green Energy Machine, LLC	Anita, IA	6 GWh	May 2016	Dec 2025	Wind
Green River Solar	Green River Solar, LLC	Guston, KY	398 GWh	Apr 2025	May 2026	Solar
Cashton Solar	Green Street Power Partners	Cashton, WI	3 GWh	Aug 2019	Dec 2025	Solar

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