Midcontinent Independent System Operator, Inc.

Balancing Authority Summary Information

Midcontinent Independent System Operator, Inc. is ranked #2 out of 65 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 2025
Annual Generation	647.6 TWh
Power Plants	2,788
Utilities	1,282
Ranked #2 out of 65 in terms of net annual generation
Ranked #2 out of 53 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 36.5% Coal \| 28.3% Wind \| 15.4% Nuclear \| 14.1% Solar \| 3.6% Water \| 1.6% Other Fuel \| 0.5%

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Daily Net Generation for Midcontinent Independent System Operator, Inc. for the past 3 Years

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Pine Bluff Mill	Suzano Packaging LLC	Pine Bluff, AR	289 GWh	Apr 1958	Dec 2023	Black Liquor : 80.1% Natural Gas : 19.9%
Pine Bluff Energy Center	Pine Bluff Energy LLC	Pine Bluff, AR	1 TWh	Jul 2001	Apr 2025	Natural Gas
Pine	Wisconsin Electric Power Co	Florence, WI	10 GWh	May 1922	Dec 2024	Water
Pinconning White Feather	Energy Developments, Inc d/b/a EDL	Pinconning, MI	17 GWh	Feb 2009	Dec 2024	Landfill Gas
Pinckneyville	Union Electric Co - (MO)	Pinckneyville, IL	80 GWh	May 2000	Dec 2024	Natural Gas
Pillager	ALLETE, Inc.	Pillager, MN	7 GWh	Dec 1916	Dec 2024	Water
Pike County Wind Power	Illinois Rural Electric Coop	Pittsfield, IL	355 MWh	Apr 2005	Nov 2024	Wind
Pierre Solar	Pierre Solar	Pierre, SD	2 GWh	Aug 2016	Dec 2024	Solar
Pickford Solar	Heritage Sustainable Energy. LLC	Pickford, MI	10 GWh	Jan 2021	Dec 2024	Solar
Phoenix Solar South Farms LLC Solar Farm	Phoenix Solar South Farms LLC	Champaign, IL	7 GWh	Nov 2015	Apr 2025	Solar
Pheasant Run Wind LLC	Pheasant Run Wind LLC	Pigeon, MI	257 GWh	Nov 2013	Apr 2025	Wind
Pheasant Run Landfill Gas Recovery	WM Renewable Energy LLC	Bristol, WI	48 GWh	Jan 1992	Dec 2024	Landfill Gas
Petit Jean	Today's Power, Inc.	Clinton, AR	2 GWh	Nov 2023	Dec 2024	Solar
Petenwell	Wisconsin River Power Company	Necedah, WI	108 GWh	Jul 1949	Dec 2024	Water
Peru (IN)	City of Peru - (IN)	Peru, IN	6 MWh	May 1949	Dec 2024	Distillate Fuel Oil
Peru 3	Indiana Municipal Power Agency	Peru, IN	5 GWh	Sep 2022	Dec 2024	Solar
Peru 2	Indiana Municipal Power Agency	Peru, IN	18 GWh	Mar 2021	Dec 2024	Solar
Perryville Power Station	Entergy Louisiana LLC	Sterlington, LA	4 TWh	May 2001	Apr 2025	Natural Gas
Perry Customer Hosted 1MW Solar Project	Interstate Power and Light Co	Perry, IA	739 MWh	Jun 2024	Dec 2024	Solar
Pepin Garden	Pepin Garden LLC	Kellogg, MN	2 GWh	Oct 2023	Dec 2024	Solar
Peoples Generating Station	North American Natural Res	Ann Arbor, MI	17 GWh	Aug 1995	Dec 2023	Landfill Gas
Peno Creek	Union Electric Co - (MO)	Bowling Green, MO	118 GWh	Apr 2002	Dec 2024	Natural Gas : 97.4% Distillate Fuel Oil : 2.6%
Pella Peaking	City of Pella - (IA)	Pella, IA	227 MWh	May 2003	Dec 2024	Distillate Fuel Oil
Pegasus Wind	Pegasus Wind, LLC	Reese, MI	398 GWh	Nov 2019	Apr 2025	Wind
Pegasus Community Solar	Pegasus Community Solar	Brooten, MN	3 GWh	Jul 2017	Dec 2024	Solar
Peavy Falls	Wisconsin Electric Power Co	Crystal Falls, MI	37 GWh	Dec 1942	Dec 2024	Water
Pearl Station	Prairie Power, Inc	Pearl, IL	161 MWh	May 1973	Dec 2024	Distillate Fuel Oil
Pearl River Solar Park LLC	Pearl River Solar Park, LLC	Morton, MS	300 GWh	Jun 2024	Apr 2025	Solar
PCA, Filer City Mill	PCA, Filer City Mill	Filer City, MI	99 GWh	Dec 1949	Apr 2025	Natural Gas
Paynesville Solar	Enel Green Power NA, Inc.	Paynesville, MN	20 GWh	Nov 2016	Nov 2024	Solar
Paynesville CSG1, LLC	Nautilus Solar Solutions	Paynesville, MN	2 GWh	Dec 2020	Dec 2024	Solar
Paynesville Community Solar	Paynesville Community Solar	Paynesville, MN	8 GWh	Nov 2016	Dec 2024	Solar
Paulson Community (CSG)	Paulson Community Solar LLC	St. Peter, MN	2 GWh	Mar 2020	Dec 2024	Solar
Pastime Farm, LLC	Cypress Creek Renewables	Brazil, IN	9 GWh	Nov 2015	Dec 2024	Solar
Park Mill	Eagle Creek Renewable Energy, LLC	Marinette, WI	9 GWh	Dec 1919	Dec 2024	Water
Paris (WI)	Wisconsin Electric Power Co	Union Grove, WI	227 GWh	Feb 1995	Dec 2024	Natural Gas
Paris Solar	Wisconsin Electric Power Co	Union Grove, WI	86 GWh	Nov 2024	Apr 2025	Solar
Panther Creek Wind Project	Greenbacker Renewable Energy Corporation	Pittsfield, IL	56 GWh	-	Apr 2025	Wind
Panora	City of Panora - (IA)	Panora, IA	5 MWh	Dec 1987	Dec 2024	Distillate Fuel Oil
Palo Alto Wind Farm	MidAmerican Energy Co	Emmetsburg, IA	2 TWh	Dec 2019	Apr 2025	Wind
Palmer Community Solar LLC CSG	Palmer Community Solar LLC	North Branch, MN	2 GWh	Jul 2021	Dec 2024	Solar
Paddock Solar	Wisconsin Power & Light Co	Beloit, WI	131 GWh	Oct 2023	Apr 2025	Solar
Packaging of America Tomahawk Mill	PCA-Tomahawk Mill	Tomahawk, WI	111 GWh	Dec 1919	Dec 2024	Wood/Wood Waste Solids : 35.7% Natural Gas : 34.2% Black Liquor : 18.1% Water : 11.7%
Oxbow Solar 1	Lightsource Renewable Energy Asset Management, LLC	New Roads, LA	475 GWh	Jun 2024	Apr 2025	Solar
Owatonna Energy Station	Southern Minnesota Mun P Agny	Owatonna, MN	13 GWh	Feb 2018	Dec 2024	Natural Gas
Owatonna	City of Owatonna - (MN)	Owatonna, MN	1 GWh	Mar 1982	Dec 2023	Natural Gas
Overall Road Station	City of Farmington - (MO)	Farmington, MO	26 MWh	Feb 2003	Dec 2024	Distillate Fuel Oil
Ouachita	Entergy Louisiana LLC	Sterlington, LA	4 TWh	Jul 2002	Apr 2025	Natural Gas
Ottumwa City of	Ottumwa City of	Ottumwa, IA	5 GWh	Jul 1931	Apr 2024	Water
Ottumwa	Interstate Power and Light Co	Ottumwa, IA	2 TWh	Apr 1981	Apr 2025	Subbituminous Coal : 99.6%
Otter Creek Ethanol Poet - Ashton	Otter Creek Ethanol LLC - Poet Ashton	Ashton, IA	43 GWh	Feb 2004	Apr 2025	Natural Gas
Otsego Mill Power Plant	Otsego Paper Inc	Otsego, MI	161 GWh	Oct 1995	Dec 2023	Natural Gas
Osceola Windpower II	Osceola Windpower II	Harris, IA	208 GWh	Aug 2008	Apr 2025	Wind
Osage (IA)	City of Osage - (IA)	Osage, IA	6 GWh	Aug 1963	Dec 2024	Wind : 81.2% Solar : 18.8%
Osage Dam	Union Electric Co - (MO)	Eldon, MO	497 GWh	Sep 1931	Dec 2024	Water
Orion Community Solar	Orion Community Solar	St. Joseph, MN	5 GWh	Dec 2016	Dec 2024	Solar
Orient Wind Farm	MidAmerican Energy Co	Orient, IA	2 TWh	Nov 2018	Apr 2025	Wind
OREG 3 Inc	Ormat Nevada Inc	Trimont, MN	41 GWh	Jul 2010	Apr 2025	Waste Heat
Optimum Wind 7 LLC	Optimum Wind 7 LLC	Nevada, IA	11 GWh	Feb 2017	Dec 2024	Wind
Optimum Wind 6 LLC	Optimum Wind 6 LLC	Nevada, IA	9 GWh	Feb 2017	Dec 2024	Wind
Optimum Wind 5 LLC	Optimum Wind 5 LLC	Nevada, IA	9 GWh	Feb 2017	Dec 2024	Wind
Optimum Wind 4 LLC	Optimum Wind 4 LLC	Nevada, IA	10 GWh	Feb 2017	Dec 2024	Wind
Optimum Wind 3 LLC	Optimum Wind 3 LLC	Nevada, IA	10 GWh	Feb 2017	Dec 2024	Wind
Onion River	Wisconsin Power & Light Co	Sheboygan Cedar Grove, WI	214 GWh	Nov 2023	Apr 2025	Solar
Onalaska Campus Landfill Biogas	Gundersen Lutheran Biogas I LLC	Onalaska, WI	4 GWh	Feb 2012	Dec 2024	Landfill Gas
Omega Hills Gas Recovery	WM Renewable Energy LLC	Germantown, WI	82 GWh	Nov 1985	Apr 2025	Landfill Gas
Olney Solar II CSG	Olney Solar II, LLC	Olney, IL	4 GWh	May 2021	Dec 2024	Solar
Olmsted Waste Energy	Olmsted County Public Works	Rochester, MN	47 GWh	Mar 1987	Dec 2024	Non-biogenic Municipal Solid Waste : 54.7% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.5%
Oliver Wind III, LLC	Oliver Wind III, LLC	Mandan, ND	426 GWh	Dec 2016	Apr 2025	Wind
Olinda Trail Solar	Olinda Trail Solar LLC	Lindstrom, MN	2 GWh	Aug 2019	Dec 2024	Solar
Old Gold Energy Center, LLC	Old Gold Energy Center, LLC	Joice, IA	78 GWh	Sep 2001	Dec 2024	Wind
Ogema	Greenbacker Renewable Energy Corporation	Ogema, WI	2 GWh	Feb 2024	Dec 2024	Solar
Ogden	City of Ogden - (IA)	Ogden, IA	10 MWh	Jun 1951	Dec 2024	Distillate Fuel Oil
OE IL Solar 3	OE IL Solar 3, LLC	Oregon, IL	5 GWh	Feb 2022	Dec 2024	Solar
Odin Wind Farm LLC	Aspenall Energies (Delaware), LLC	Mountainlake, MN	34 GWh	Apr 2008	Dec 2023	Wind
Odell Wind Farm	Algonquin Power Co	Mountain Lake, MN	773 GWh	Jun 2016	Dec 2024	Wind
Oconto Falls Upper	Eagle Creek Renewable Energy, LLC	Oconto Falls, WI	6 GWh	Dec 1917	Dec 2024	Water
Oconto Falls Lower	Eagle Creek Renewable Energy, LLC	Oconto Falls, WI	7 GWh	Dec 1970	Dec 2024	Water
Oakdale	Northern Indiana Pub Serv Co	Monticello, IN	17 GWh	Oct 1925	Dec 2024	Water
Oak Ridge Solar	AES Clean Energy	Oak Ridge, LA	451 GWh	Nov 2023	Apr 2025	Solar
Oak Ridge LFGTE	Wabash Valley Power Assn, Inc	Logansport, IN	26 GWh	Nov 2003	Dec 2024	Landfill Gas
Oak Point Cogen	Chevron Oronite Co LLC	Belle Chasse, LA	99 GWh	Sep 1999	Dec 2024	Natural Gas
Oak Hill Solar Array	Southern Indiana Gas & Elec Co	Evansville, IN	3 GWh	Oct 2018	Dec 2024	Solar
Oak Glen Wind Farm	Minnesota Municipal Power Agny	Blooming Prairie, MN	121 GWh	Oct 2011	Dec 2024	Wind
O'Shea Solar Farm	DTE Electric Company	Detroit, MI	3 GWh	Jun 2017	Dec 2024	Solar
O'Fallon Renewable Energy Center	Union Electric Co - (MO)	O'Fallon, MO	2 GWh	Nov 2014	Dec 2024	Solar
O'Brien Wind	MidAmerican Energy Co	Primghar, IA	876 GWh	Aug 2016	Dec 2024	Wind
O'Brien Solar Fields	Madison Gas & Electric Co	Fitchburg, WI	38 GWh	Apr 2021	Dec 2024	Solar
Novel Winegar Partnership Solar CSG	REA Investments, LLC	Waseca, MN	2 GWh	Mar 2021	Dec 2024	Solar
Novel Wayne Solar LLC CSG	REA Investments, LLC	Mantorville, MN	2 GWh	Dec 2020	Dec 2024	Solar
Novel Sunnyfield Farms Solar LLC CSG	REA Investments, LLC	Mazeppa, MN	2 GWh	May 2022	Dec 2024	Solar
Novel Stein Solar LLC CSG	REA Investments, LLC	Taylors Falls, MN	2 GWh	Aug 2022	Dec 2024	Solar
Novel Stavem Solar LLC CSG	REA Investments, LLC	Glenwood, MN	2 GWh	Aug 2021	Dec 2024	Solar
Novel Shelly Solar LLC (CSG)	REA Investments, LLC	Cottonwood, MN	2 GWh	Aug 2022	Dec 2024	Solar
Novel Schroeder Solar LLC CSG	REA Investments, LLC	Renville, MN	2 GWh	Dec 2022	Dec 2024	Solar
Novel Schmoll Farms Solar CSG	REA Investments, LLC	Dodge Center, MN	2 GWh	Oct 2020	Dec 2024	Solar
Novel Reber Solar CSG	REA Investments, LLC	Albany, MN	2 GWh	Oct 2019	Dec 2024	Solar
Novel Peter Solar CSG	REA Investments, LLC	Waterville, MN	2 GWh	Aug 2021	Dec 2024	Solar
Novel Pederson Solar CSG	REA Investments, LLC	Sauk Rapids, MN	2 GWh	Jul 2020	Dec 2024	Solar
Novel OYA of Osakis CSG	NRG MN Community LLC	Osakis, MN	9 GWh	Jun 2018	Dec 2024	Solar

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	784.9 GWh	4
#27	Associated Electric Cooperative, Inc.	23.0 TWh	47
#13	Duke Energy Carolinas	111.8 TWh	565
#52	Duke Energy Progress West	4.1 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	33.8 TWh	25
#1	PJM Interconnection, LLC	860.4 TWh	2,429
#20	Public Service Company of Colorado	48.5 TWh	208
#5	Southwest Power Pool	296.4 TWh	830
#50	Southwestern Power Administration	4.4 TWh	33
#8	Tennessee Valley Authority	158.8 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	860.4 TWh	2,429
#2	Midcontinent Independent System Operator, Inc.	647.6 TWh	2,788
#3	Electric Reliability Council of Texas, Inc.	476.9 TWh	1,305
#5	Southwest Power Pool	296.4 TWh	830
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	189.7 TWh	2,051
#8	Tennessee Valley Authority	158.8 TWh	204
#10	Florida Power & Light Co.	149.0 TWh	187
#12	New York Independent System Operator	130.8 TWh	1,191
#13	Duke Energy Carolinas	111.8 TWh	565