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
Oak Ridge Solar	AES Clean Energy	Oak Ridge, LA	420 GWh	Nov 2023	Jul 2026	Solar
Oconto Falls Lower	Eagle Creek Renewable Energy, LLC	Oconto Falls, WI	6 GWh	Dec 1970	Dec 2025	Water
Oconto Falls Upper	Eagle Creek Renewable Energy, LLC	Oconto Falls, WI	6 GWh	Dec 1917	Dec 2025	Water
Stiles	Oconto Electric Cooperative	Oconto Falls, WI	5 GWh	Feb 1949	Dec 2025	Water
Richland (IA)	Interstate Power and Light Co	Odebolt, IA	492 GWh	Aug 2020	Jul 2026	Wind
Beaver Creek Wind	MidAmerican Energy Co	Ogden, IA	1 TWh	Nov 2017	Jul 2026	Wind
Ogden	City of Ogden - (IA)	Ogden, IA	73 MWh	Jun 1951	Dec 2025	Distillate Fuel Oil
Ogema	Greenbacker Renewable Energy Corporation	Ogema, WI	2 GWh	Feb 2024	Dec 2025	Solar
Olney Solar II CSG	Olney Solar II, LLC	Olney, IL	4 GWh	May 2021	Dec 2025	Solar
Onalaska Campus Landfill Biogas	Gundersen Lutheran Biogas I LLC	Onalaska, WI	4 GWh	Feb 2012	Dec 2025	Landfill Gas
Kleber	Tower Kleber Ltd Partnership	Onaway, MI	5 GWh	Dec 1924	Dec 2024	Water
Prairie Ronde Solar Farm	Lightsource Renewable Energy Asset Management, LLC	Opelousas, LA	244 GWh	Oct 2024	Jul 2026	Solar
Galesburg Solar Array	Onsite Partners, LLC	Oquawka, IL	3 GWh	Feb 2020	Dec 2025	Solar
Sabine River Operations	The Dow Chemical Company	Orange, TX	2 TWh	Dec 1947	Jul 2026	Natural Gas : 99.7%
Sabine	Entergy Texas Inc.	Orange, TX	3 TWh	Dec 1961	Jul 2026	Natural Gas
OE IL Solar 3	OE IL Solar 3, LLC	Oregon, IL	4 GWh	Feb 2022	Dec 2025	Solar
USS Ducks Solar CSG	USS Ducks Solar LLC	Oregon, IL	9 MWh	Oct 2025	Dec 2025	Solar
Cumberland Rose	Cumberland Rose Wind Energy, LLC	Orient, IA	4 GWh	Jul 2012	Dec 2025	Wind
Orient Wind Farm	MidAmerican Energy Co	Orient, IA	2 TWh	Nov 2018	Jul 2026	Wind
Bulldog	Bulldog Wind Energy, LLC	Orient, IA	4 GWh	Sep 2010	Dec 2025	Wind
Eagle Valley (MI)	WM Renewable Energy LLC	Orion, MI	23 GWh	Jun 2011	Dec 2025	Landfill Gas
Osage (IA)	City of Osage - (IA)	Osage, IA	5 GWh	Aug 1963	Dec 2025	Wind : 81.8% Solar : 18.2%
Douglas Todd Community Solar One LLC CSG	Madison Energy Holdings LLC	Osakis, MN	2 GWh	Nov 2019	Dec 2025	Solar
Novel OYA of Osakis CSG	NRG MN Community LLC	Osakis, MN	9 GWh	Jun 2018	Dec 2025	Solar
FastSun 13 CSG	Altus Power America Management, LLC	Osakis, MN	2 GWh	Nov 2019	Dec 2025	Solar
Novel Herickhoff Solar CSG	REA Investments, LLC	Osakis, MN	2 GWh	Mar 2020	Dec 2025	Solar
Driver Solar	Entergy Arkansas LLC	Osceola, AR	374 GWh	Oct 2024	Jul 2026	Solar
Plum Point Energy Station	NRG Energy Services - Plum Point	Osceola, AR	3 TWh	Aug 2010	Jul 2026	Subbituminous Coal : 99.7%
Foote	Consumers Energy Co - (MI)	Oscoda, MI	28 GWh	Dec 1917	Dec 2025	Water
Five Channels	Consumers Energy Co - (MI)	Oscoda, MI	23 GWh	Dec 1911	Dec 2025	Water
Loud	Consumers Energy Co - (MI)	Oscoda, MI	16 GWh	Dec 1912	Dec 2025	Water
Cooke	Consumers Energy Co - (MI)	Oscoda, MI	24 GWh	Dec 1910	Dec 2025	Water
Winnebago County Landfill Gas	Winnebago County - (WI)	Oshkosh, WI	3 GWh	Jan 2000	Dec 2025	Landfill Gas
Langdon Wind II LLC	FPL Energy Langdon Wind LLC	Osnabrock, ND	175 GWh	Aug 2008	Dec 2025	Wind
Lundgren Wind Project	MidAmerican Energy Co	Otho, IA	605 GWh	Jul 2014	Dec 2025	Wind
Otsego Mill Power Plant	Otsego Paper Inc	Otsego, MI	163 GWh	Oct 1995	Dec 2025	Natural Gas
Dayton Hydro	Eagle Creek Renewable Energy, LLC	Ottawa, IL	10 GWh	Dec 1924	Dec 2025	Water
LaSalle Solar 6	Pivot Energy	Ottawa, IL	582 MWh	Oct 2025	Dec 2025	Solar
SAE Ottawa IL	SolAmerica Energy, LLC	Ottawa, IL	225 MWh	Aug 2025	Dec 2025	Solar
Ottumwa City of	City of Ottumwa - (IA)	Ottumwa, IA	3 GWh	Jul 1931	Dec 2025	Water
Ottumwa	Interstate Power and Light Co	Ottumwa, IA	4 TWh	Apr 1981	Jul 2026	Subbituminous Coal : 99.6%
Owatonna	City of Owatonna - (MN)	Owatonna, MN	1 GWh	Mar 1982	Dec 2025	Natural Gas
USS Bush Solar LLC CSG	United States Solar Corporation	Owatonna, MN	2 GWh	Sep 2020	Dec 2025	Solar
Lemond Solar	Adapture Renewables, Inc.	Owatonna, MN	9 GWh	May 2017	Dec 2025	Solar
RJC I CSG	RJC I CSG LLC	Owatonna, MN	2 GWh	Jun 2018	Dec 2025	Solar
RJC II Community Solar Garden	RJC II CSG LLC	Owatonna, MN	2 GWh	May 2018	Dec 2025	Solar
Owatonna Energy Station	Southern Minnesota Mun P Agny	Owatonna, MN	2 GWh	Feb 2018	Dec 2025	Natural Gas
Enterprise MN - Buscho CSG	Standard Solar	Owatonna, MN	26 MWh	Nov 2025	Dec 2025	Solar
RJC CSG, LLC	Madison Energy Holdings LLC	Owatonna,, MN	2 GWh	May 2021	Dec 2025	Solar
Gibson	Duke Energy Indiana, LLC	Owensville, IN	11 TWh	Mar 1975	Jul 2026	Bituminous Coal : 99.6%
Midcontinent Solar, LLC	Midcontinent Solar, LLC	Owosso, MI	38 GWh	Sep 2023	Dec 2025	Solar
Lyons Road	Lyons Road Solar, LLC	Owosso, MI	41 GWh	Dec 2021	Dec 2025	Solar
Viking Solar CSG	Viking Solar, LLC	Palmyra, IL	4 GWh	May 2021	Dec 2025	Solar
Pleasant Creek Unit 2	Interstate Power and Light Co	Palo, IA	273 GWh	Nov 2024	Jul 2026	Solar
Pleasant Creek Unit 1	Interstate Power and Light Co	Palo, IA	98 GWh	Feb 2024	Jul 2026	Solar
Panora	City of Panora - (IA)	Panora, IA	8 MWh	Dec 1987	Dec 2025	Distillate Fuel Oil
Columbia (WI)	Wisconsin Power & Light Co	Pardeville, WI	5 TWh	Apr 1975	Jul 2026	Subbituminous Coal : 99.9%
Edgar Solar 1	Pivot Energy	Paris, IL	5 GWh	Feb 2025	Dec 2025	Solar
SAE Paris IL S1	SolAmerica Energy, LLC	Paris, IL	2 GWh	May 2025	Dec 2025	Solar
Flambeau Lower Project	Zero6 Energy Hydro	Park Falls, WI	3 GWh	Dec 1922	Dec 2025	Water
Flambeau Crowley Rapids Project	Zero6 Energy Hydro	Park Falls, WI	4 GWh	Dec 1929	Dec 2025	Water
Kinmundy	Union Electric Co - (MO)	Patoka, IL	3 GWh	Mar 2001	Nov 2025	Natural Gas
Pioneer Trail Wind Farm, LLC	RWE Clean Energy	Paxton, IL	470 GWh	Nov 2011	Dec 2025	Wind
Paynesville Community Solar	Paynesville Community Solar	Paynesville, MN	8 GWh	Nov 2016	Dec 2025	Solar
Paynesville Solar	Enel Green Power NA, Inc.	Paynesville, MN	18 GWh	Nov 2016	Dec 2025	Solar
USS Milkweed Solar LLC CSG	Standard Solar	Paynesville, MN	2 GWh	May 2020	Dec 2025	Solar
Allium Community Solar Garden, LLC	Geronimo Power	Paynesville, MN	2 GWh	Dec 2020	Dec 2025	Solar
Paynesville CSG1, LLC	Nautilus Solar Solutions	Paynesville, MN	2 GWh	Dec 2020	Dec 2025	Solar
Enterprise MN - Ferche CSG	Standard Solar	Paynesville, MN	35 MWh	Nov 2025	Dec 2025	Solar
Hertzberg Community (CSG)	CleanCapital Holdings	Paynesville, MN	2 GWh	Mar 2020	Dec 2025	Solar
MN East Regal LLC (CSG)	United States Solar Corporation	Paynesville, MN	2 GWh	Jul 2024	Dec 2025	Solar
Capricornus Community Solar Garden	Geronimo Power	Paynsville, MN	2 GWh	Dec 2018	Dec 2025	Solar
Pearl Station	Prairie Power, Inc	Pearl, IL	64 MWh	May 1973	Dec 2025	Distillate Fuel Oil
Lakeswind Power Partners	Lakeswind Power Partners	Pelican Rapids, MN	162 GWh	Feb 2014	Dec 2025	Wind
A.J. Mihm Generating Station	Upper Michigan Energy Resources Company	Pelkie, MI	185 GWh	Feb 2019	Dec 2025	Natural Gas
Prickett	Upper Peninsula Power Company	Pelkie, MI	6 GWh	Oct 1931	Dec 2025	Water
Pella Peaking	City of Pella - (IA)	Pella, IA	752 MWh	May 2003	Dec 2025	Distillate Fuel Oil
Red Rock Hydro Plant	Western Minnesota Mun Pwr Agny	Pella, IA	202 GWh	Apr 2021	Jul 2026	Water
IMPA Pendleton Solar Park	Indiana Municipal Power Agency	Pendleton, IN	3 GWh	Sep 2015	Dec 2025	Solar
SCS Galena 012589 Peoria, LLC	Arevon Energy, Inc.	Peoria, IL	4 GWh	Nov 2021	Dec 2025	Solar
Peoria County IL S2	SolAmerica Energy, LLC	Peoria, IL	2 GWh	May 2025	Dec 2025	Solar
Archer Daniels Midland Peoria	BioUrja Renewables LLC	Peoria, IL	73 GWh	Dec 1987	Dec 2025	Natural Gas
Perry Customer Hosted 1MW Solar Project	Interstate Power and Light Co	Perry, IA	2 GWh	Jun 2024	Dec 2025	Solar
City of Peru Water Street Generating Sta	City of Peru - (IL)	Peru, IL	33 MWh	Sep 1968	Dec 2025	Jet Fuel
City of Peru Rail Generating Station	City of Peru - (IL)	Peru, IL	53 MWh	Aug 2011	Dec 2025	Distillate Fuel Oil
City of Peru Plank Road Generating Station	City of Peru - (IL)	Peru, IL	19 GWh	Sep 1968	Jul 2026	Water : 96.9% Distillate Fuel Oil : 2.3% Jet Fuel : 0.7%
Peru (IN)	City of Peru - (IN)	Peru, IN	6 MWh	May 1949	Dec 2024	Distillate Fuel Oil
IMPA Peru Solar Park	Indiana Municipal Power Agency	Peru, IN	4 GWh	Jul 2015	Dec 2025	Solar
Peru 3	Indiana Municipal Power Agency	Peru, IN	5 GWh	Sep 2022	Dec 2025	Solar
Peru 2	Indiana Municipal Power Agency	Peru, IN	17 GWh	Mar 2021	Dec 2025	Solar
West Marinette 34	Madison Gas & Electric Co	Peshtigo, WI	85 GWh	May 2000	Dec 2025	Natural Gas
West Marinette	Wisconsin Public Service Corp	Peshtigo, WI	90 GWh	May 1971	Dec 2025	Natural Gas
AES Petersburg	AES Indiana	Petersburg, IN	4 TWh	May 1967	Jul 2026	Bituminous Coal : 93.2% Natural Gas : 6.6%
Petersburg Energy Center	Petersburg Energy Center, LLC	Petersburg, IN	220 GWh	-	Jul 2026	Solar
Heirloom Solar	Heirloom Solar (Ratts 1 Phase 2 Solar, LLC)	Petersburg, IN	92 GWh	Sep 2025	Jul 2026	Solar
RATTS 1	Ratts 1 Solar LLC	Petersburg, IN	244 GWh	Sep 2025	Jul 2026	Solar
Lannon Stone	Wisconsin Electric Power Co	Pewaukee, WI	4 GWh	Nov 2021	Dec 2025	Solar
Flambeau Solar Partners	REC Solar	Phillips, WI	4 GWh	Apr 2017	Dec 2025	Solar
Pickford Solar	Heritage Sustainable Energy. LLC	Pickford, MI	9 GWh	Jan 2021	Dec 2025	Solar
Pierre Solar	Western Minnesota Mun Pwr Agny	Pierre, SD	2 GWh	Aug 2016	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