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
Held Solar Project	Madison Energy Investments LLC	Waite Park, MN	8 GWh	Feb 2019	Sep 2025	Solar
POET Biorefining - Jewell	POET Biorefining - Jewell	Jewell, IA	11 GWh	Feb 2019	Dec 2025	Natural Gas
Saratoga Wind Farm	Madison Gas & Electric Co	Lime Springs, IA	260 GWh	Jan 2019	May 2026	Wind
Altair Community Solar Garden	Geronimo Power	New Richmond, MN	2 GWh	Jan 2019	Dec 2025	Solar
Goose Lake MN DPC-GM	ENGIE Generation North America LLC	Albert Lea, MN	3 GWh	Jan 2019	Dec 2025	Solar
Stoneray Power Partners, LLC	EDF Renewable Asset Holdings, Inc.	Woodstock, MN	363 GWh	Jan 2019	May 2026	Wind
DPC Madison	SoCore Energy LLC	Ridgeway, IA	3 GWh	Jan 2019	Dec 2025	Solar
Capricornus Community Solar Garden	Geronimo Power	Paynsville, MN	2 GWh	Dec 2018	Dec 2025	Solar
Crux Community Solar	Geronimo Power	Kasson, MN	2 GWh	Dec 2018	Dec 2025	Solar
Kaus Community Solar	Geronimo Power	Claremont, MN	2 GWh	Dec 2018	Dec 2024	Solar
Montevideo Solar LLC, CSG	Montevideo Solar LLC	Montevideo, MN	10 GWh	Dec 2018	Dec 2025	Solar
Corcoran CSG	Altus Power America Management, LLC	Corcoran, MN	8 GWh	Dec 2018	Dec 2025	Solar
USS Solar Rapids CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Dec 2018	Dec 2025	Solar
USS Norelius Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Dec 2018	Dec 2025	Solar
USS JJ Solar CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Dec 2018	Dec 2025	Solar
USS Brockway Solar CSG	United States Solar Corporation	Sartell, MN	2 GWh	Dec 2018	Dec 2025	Solar
Enter Solar	Arcadia Solar, LLC	Janesville, MN	2 GWh	Dec 2018	Dec 2025	Solar
POET Biorefining-Hanlontown, LLC	POET Biorefining-Hanlontown, LLC	Hanlontown, IA	13 GWh	Dec 2018	Dec 2025	Natural Gas
New Frontier Wind	Meadowlark Wind I LLC	Ruso, ND	369 GWh	Nov 2018	May 2026	Wind
Orient Wind Farm	MidAmerican Energy Co	Orient, IA	2 TWh	Nov 2018	May 2026	Wind
Heartland Divide Wind Project, LLC	Heartland Divide Wind Project, LLC	Melville, IA	427 GWh	Nov 2018	May 2026	Wind
Turtle Creek Wind Farm LLC	Turtle Creek Wind Farm LLC	St. Ansgar, IA	702 GWh	Nov 2018	May 2026	Wind
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
Leo Community Solar	Geronimo Power	Hadley, MN	2 GWh	Nov 2018	Dec 2025	Solar
Rensselaer Solar Site 2	Indiana Municipal Power Agency	Rensselaer, IN	7 GWh	Nov 2018	Dec 2025	Solar
Staunton	Cypress Creek Renewables	Brazil, IN	6 GWh	Nov 2018	Dec 2025	Solar
Ivester Wind Farm	MidAmerican Energy Co	Wellsburg, IA	323 GWh	Nov 2018	May 2026	Wind
Syncarpha Prinsburg CSG (Ledeboer)	Prinsburg CSG I, LLC	Prinsburg, MN	2 GWh	Nov 2018	Dec 2025	Solar
Syncarpha Clara City CSG I (Stamer)	Clara City CSG I, LLC	Clara City, MN	2 GWh	Nov 2018	Dec 2025	Solar
USS Big Lake 1 Solar CSG	United States Solar Corporation	Big Lake, MN	2 GWh	Nov 2018	Dec 2025	Solar
USS Good Solar CSG	United States Solar Corporation	Stacy, MN	2 GWh	Nov 2018	Dec 2025	Solar
USS Rockpoint Solar CSG	United States Solar Corporation	Stacy, MN	2 GWh	Nov 2018	Dec 2025	Solar
USS Solar Dawn CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Nov 2025	Solar
USS Nillie Corn Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Dec 2025	Solar
USS Dubhe Solar CSG	United States Solar Corporation	North Branch, MN	2 GWh	Nov 2018	Dec 2025	Solar
Athens MN CONX	SoCore Energy LLC	Athens, MN	10 GWh	Nov 2018	Dec 2025	Solar
Tiller CSG	Madison Energy Investments LLC	Clear Lake, MN	7 GWh	Nov 2018	Sep 2025	Solar
Hammer CSG	Madison Energy Investments LLC	Clear Lake, MN	6 GWh	Nov 2018	Sep 2025	Solar
Arbor Hill Wind Farm	MidAmerican Energy Co	Greenfield, IA	1 TWh	Nov 2018	May 2026	Wind
North English	MidAmerican Energy Co	Montezuma, IA	1 TWh	Nov 2018	May 2026	Wind
Lake Region Community Hybrid, LLC	Lake Region Community Hybrid, LLC	Rothsay, MN	8 GWh	Nov 2018	Dec 2025	Wind : 95.0% Solar : 5.0%
Oak Hill Solar Array	Southern Indiana Gas & Elec Co	Evansville, IN	3 GWh	Oct 2018	Dec 2025	Solar
Volkman Road Solar Array Hybrid	Southern Indiana Gas & Elec Co	Evansville, IN	3 GWh	Oct 2018	Dec 2025	Solar
Libra Community Solar	Geronimo Power	Glenwood, MN	2 GWh	Oct 2018	Dec 2025	Solar
Meadow Lake Wind Farm VI LLC	Meadow Lake Wind Farm VI LLC	Remington, IN	654 GWh	Oct 2018	May 2026	Wind
Schultz CSG	Madison Energy Investments LLC	Webster, MN	3 GWh	Oct 2018	Sep 2025	Solar
Monticello Project CSG	Madison Energy Investments LLC	Monticello, MN	7 GWh	Oct 2018	Sep 2025	Solar
Bolduan CSG	Terraform Arcadia	New Richland, MN	2 GWh	Oct 2018	Dec 2025	Solar
POET Biorefining - Gowrie	POET Biorefining - Gowrie	Gowrie, IA	2 GWh	Oct 2018	Dec 2025	Natural Gas
Corvus Community Solar	Corvus Community Solar	Mankato, MN	8 GWh	Sep 2018	Dec 2025	Solar
Wright Cuddyer CSG	Minnesota Solar CSG 1, LLC	St. Michael, MN	5 GWh	Sep 2018	Dec 2024	Solar
Cottage Grove Project CSG	Madison Energy Investments LLC	Cottage Grove, MN	6 GWh	Sep 2018	Sep 2025	Solar
USS Kasch Solar CSG	United States Solar Corporation	Sauk Rapids, MN	2 GWh	Sep 2018	Dec 2025	Solar
Hampton MN GRE	SoCore Energy LLC	Hampton Township, MN	3 GWh	Sep 2018	Sep 2025	Solar
Anoka County MN CONX	SoCore Energy LLC	Ramsey, MN	6 GWh	Sep 2018	Dec 2025	Solar
Barone CSG	Terraform Arcadia	Winstead, MN	2 GWh	Sep 2018	Dec 2025	Solar
Winegar CSG	Terraform Arcadia	Waseca, MN	2 GWh	Sep 2018	Dec 2025	Solar
Green Lake Solar	Heritage Sustainable Energy. LLC	Interlochen, MI	1 GWh	Sep 2018	Dec 2025	Solar
POET Biorefining LLC - Corning	POET Biorefining LLC - Corning	Corning, IA	14 GWh	Sep 2018	Dec 2025	Natural Gas
SunE Feely 1 CSG, LLC	Ecoplexus, Inc	Farmington, MN	8 GWh	Aug 2018	Dec 2025	Solar
Johnson II Community Solar	Johnson II CSG LLC	North Branch, MN	1 GWh	Aug 2018	Dec 2025	Solar
Eichtens II CSG	Terraform Arcadia	Winstead, MN	2 GWh	Aug 2018	Dec 2025	Solar
Huneke II CSG	Terraform Arcadia	Zumbrota, MN	2 GWh	Aug 2018	Dec 2025	Solar
Guse CSG	Terraform Arcadia	Janesville, MN	2 GWh	Aug 2018	Dec 2025	Solar
Central Generating	North American Central - LLC	Pierson, MI	13 GWh	Aug 2018	Dec 2025	Landfill Gas
Betcher Community Solar Garden	Betcher CSG LLC	Goodhue, MN	2 GWh	Jul 2018	Dec 2025	Solar
Johnson 1 Community Solar	Johnson I CSG LLC	Lindstrom, MN	2 GWh	Jul 2018	Dec 2025	Solar
Cornillie	Terraform Arcadia	North Branch, MN	2 GWh	Jul 2018	Dec 2025	Solar
POET Biorefining - Chancellor	POET Biorefining- Chancellor	Chancellor, SD	28 GWh	Jul 2018	Dec 2025	Wood/Wood Waste Solids : 70.4% Natural Gas : 25.9% Landfill Gas : 3.8%
Ashley-Chicot Solar	Today's Power, Inc.	Hamburg, AR	2 GWh	Jul 2018	Dec 2025	Solar
Craighead Electric Solar One	Today's Power, Inc.	Brookland, AR	2 GWh	Jul 2018	Dec 2025	Solar
Novel OYA of Osakis CSG	NRG MN Community LLC	Osakis, MN	9 GWh	Jun 2018	Dec 2025	Solar
Novel - OYA of Mapleton CSG	NRG MN Community LLC	Mapleton, MN	6 GWh	Jun 2018	Dec 2025	Solar
RJC I CSG	RJC I CSG LLC	Owatonna, MN	2 GWh	Jun 2018	Dec 2025	Solar
Scandia Community Solar Garden	Scandia CSG LLC	Scandia, MN	4 GWh	Jun 2018	Dec 2024	Solar
Foreman's Hill Community Solar	Foreman's Hill CSG LLC	Red Wing, MN	7 GWh	Jun 2018	Dec 2024	Solar
Sherburne North Project CSG	Madison Energy Investments LLC	St. Cloud, MN	8 GWh	Jun 2018	Sep 2025	Solar
Delta Solar Power II	Delta Solar Power II, LLC	Grand Ledge, MI	25 GWh	Jun 2018	Dec 2025	Solar
Red Maple Solar	Terraform Arcadia	Cleveland, MN	5 GWh	May 2018	Dec 2025	Solar
Antares Community Solar	Antares Community Solar	Tracy, MN	5 GWh	May 2018	Dec 2025	Solar
RJC II Community Solar Garden	RJC II CSG LLC	Owatonna, MN	2 GWh	May 2018	Dec 2025	Solar
Bishop Hill III	Invenergy Services LLC	Cambridge, IL	426 GWh	May 2018	May 2026	Wind
Heyer CSG	Heyer CSG LLC	Morristown, MN	2 GWh	May 2018	Dec 2024	Solar
IKEA Oak Creek Rooftop PV System	IKEA Property Inc	Oak Creek, WI	1 GWh	May 2018	Dec 2025	Solar
Big Lake Project CSG	Madison Energy Investments LLC	Big Lake, MN	9 GWh	May 2018	Sep 2025	Solar
Delta Solar Power I	Delta Solar Power I, LLC	Grand Ledge, MI	13 GWh	May 2018	Dec 2025	Solar
POET Biorefining Caro, LLC	POET Biorefining Caro, LLC	Caro, MI	13 GWh	May 2018	Dec 2025	Natural Gas
Huneke I CSG	Huneke I CSG LLC	Zumbrota, MN	2 GWh	Apr 2018	Dec 2025	Solar
Krause CSG	Standard Solar	Renville, MN	2 GWh	Apr 2018	Dec 2025	Solar
School Sisters CSG	School Sisters CSG LLC	Mankato, MN	2 GWh	Apr 2018	Dec 2025	Solar
Grimm Community Solar	Grimm CSG LLC	Buffalo Lake, MN	2 GWh	Apr 2018	Nov 2025	Solar
Marmas Solar CSG	Geronimo Power	St. Cloud, MN	5 GWh	Mar 2018	Dec 2025	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
Carver Gladden CSG	Minnesota Solar CSG 8, LLC	Norwood Young America, MN	5 GWh	Mar 2018	Dec 2024	Solar
New Germany Community Solar Garden	New Germany Solar I LLC	New Germany, MN	2 GWh	Mar 2018	Dec 2025	Solar
Zumbro Community Solar Garden	Zumbro Solar LLC	Zumbrota, MN	2 GWh	Mar 2018	Dec 2025	Solar
Owatonna Energy Station	Southern Minnesota Mun P Agny	Owatonna, MN	2 GWh	Feb 2018	Dec 2025	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