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	Apr 2026
Annual Generation	664.4 TWh
Power Plants	2,831
Utilities	1,296
Ranked #2 out of 65 in terms of net annual generation
Ranked #2 out of 54 in terms of annual generation from natural gas
Power Plant Types	Natural Gas \| 36.9% Coal \| 27.6% Wind \| 14.8% Nuclear \| 13.6% Solar \| 5% Water \| 1.4% Other Fuel \| 0.5%

Map of Midcontinent Independent System Operator, Inc.

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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
Wiota	Wiota Wind Energy, LLC #1	Wiota, IA	4 GWh	Apr 2012	Dec 2024	Wind
Gratiot County Wind LLC	Invenergy Services LLC	Breckenridge, MI	228 GWh	Apr 2012	Dec 2024	Wind
Prairie State Generating Station	Prairie State Generating Co LLC	Marissa, IL	12 TWh	May 2012	Feb 2026	Bituminous Coal : 99.8%
Heartland Community College	Heartland Community College	Normal, IL	4 GWh	May 2012	Dec 2024	Wind
4710 Hosting	Epic Hosting, LLC	Rochester, MN	29 MWh	May 2012	Dec 2024	Distillate Fuel Oil
Meadow Ridge	Meadow Ridge Wind Energy, LLC	Greenfield, IA	5 GWh	Jun 2012	Dec 2024	Wind
Rippey Wind Farm	Greenbacker Renewable Energy Corporation	Grand Junction, IA	154 GWh	Jul 2012	Dec 2024	Wind
Cumberland Rose	Cumberland Rose Wind Energy, LLC	Orient, IA	5 GWh	Jul 2012	Dec 2024	Wind
Fontanelle	Forward Fontanelle Power, LLC	Fontanelle, IA	6 GWh	Jul 2012	Dec 2024	Wind
Greenfield Wind	Greenfield Wind Power, LLC	Greenfield, IA	5 GWh	Jul 2012	Dec 2024	Wind
Sky Volt	Sky Volt, LLC	Greenfield, IA	5 GWh	Jul 2012	Dec 2024	Wind
Brooklyn	City of Brooklyn - (IA)	Brooklyn, IA	18 MWh	Aug 2012	Dec 2024	Distillate Fuel Oil
Eclipse Wind Farm	MidAmerican Energy Co	Adair, IA	808 GWh	Aug 2012	Feb 2026	Wind
Heritage Garden Wind Farm I LLC	DTE Sustainable Generation	Garden, MI	75 GWh	Aug 2012	Dec 2024	Wind
Hawkeye Wind Farm	Greenbacker Renewable Energy Corporation	Sumner, IA	173 GWh	Sep 2012	Dec 2024	Wind
Morning Light Wind Farm	MidAmerican Energy Co	Adair, IA	413 GWh	Sep 2012	Dec 2024	Wind
Anchor Wind, LLC	Acciona Energy USA Global, LLC	Mechanicsville, IA	6 GWh	Sep 2012	May 2024	Wind
Bishop Hill II Wind Farm	Bishop Hill Energy II, LLC	Cambridge, IL	340 GWh	Sep 2012	Dec 2024	Wind
Vienna Wind Farm	MidAmerican Energy Co	Marshalltown, IA	398 GWh	Oct 2012	Dec 2024	Wind
Harvest 2	Harvest II Windfarm, LLC	Elkton, MI	202 GWh	Oct 2012	Dec 2024	Wind
Lake Winds Energy Park	Consumers Energy Co - (MI)	Ludington, MI	262 GWh	Oct 2012	Dec 2024	Wind
Hobart Solar, LLC	AES Distributed Energy	Hobart, IN	215 MWh	Oct 2012	Nov 2024	Solar
Munster Landfill Gas-to-Energy	Town of Munster	Munster, IN	4 GWh	Oct 2012	Dec 2024	Landfill Gas
Portage Solar	Ecos Energy LLC	Valparaiso, IN	1 GWh	Oct 2012	Dec 2024	Solar
Middlebury Solar	Ecos Energy LLC	Middlebury, IN	457 MWh	Oct 2012	Oct 2024	Solar
Fremont Community Digester, LLC	Generate Fremont Digester, LLC.	Newaygo, MI	375 MWh	Nov 2012	Dec 2024	Other Biomass Gas
Galactic Wind	Galactic Wind	Waunakee, WI	22 GWh	Nov 2012	Dec 2024	Wind
Big Blue	Big Blue Wind Farm LLC (MN)	Blue Earth, MN	70 GWh	Nov 2012	Dec 2024	Wind
Prairie Rose Wind Farm	Enel Green Power NA, Inc.	Hardwick, MN	453 GWh	Nov 2012	Feb 2026	Wind
Bison 2 Wind Energy Center	ALLETE, Inc.	New Salem, ND	219 GWh	Nov 2012	Dec 2024	Wind
Bison 3 Wind Energy Center	ALLETE, Inc.	New Salem, ND	223 GWh	Nov 2012	Dec 2024	Wind
Franklin County Wind Farm	Interstate Power and Light Co	Iowa Falls, IA	191 GWh	Nov 2012	Dec 2024	Wind
Sigel Wind Park	DTE Electric Company	Harbor Beach, MI	250 GWh	Nov 2012	Feb 2026	Wind
Minden Wind Park	DTE Electric Company	Minden City, MI	112 GWh	Nov 2012	Feb 2026	Wind
McKinley Wind Park	DTE Electric Company	Pigeon, MI	51 GWh	Nov 2012	Feb 2026	Wind
California Ridge Wind Energy LLC	SunEdison LLC	Fithian, IL	644 GWh	Nov 2012	Feb 2026	Wind
Beebe 1A	Beebe Renewable Energy, LLC	Ithaca, MI	187 GWh	Nov 2012	Dec 2024	Wind
Community Wind South	Greenbacker Renewable Energy Corporation	Rushmore, MN	132 GWh	Nov 2012	Dec 2024	Wind
Lake Charles Plant	Rain CII Carbon LLC	Sulphur, LA	115 GWh	Nov 2012	Oct 2025	Waste Heat
Tuscola Bay Wind	Tuscola Bay Wind LLC	Reese, MI	362 GWh	Nov 2012	Feb 2026	Wind
Lincoln Solar	Ecos Energy LLC	Merrillville, IN	608 MWh	Nov 2012	Dec 2024	Solar
Valparaiso Solar, LLC	AES Distributed Energy	Valparaiso, IN	1 GWh	Nov 2012	Sep 2024	Solar
Gowrie	Gowrie Municipal Utilities	Gowrie, IA	5 MWh	Dec 2012	Dec 2024	Distillate Fuel Oil
Slayton Solar	Ecos Energy LLC	Slayton, MN	2 GWh	Dec 2012	Dec 2024	Solar
Watervliet	Energy Developments, Inc d/b/a EDL	Watervliet, MI	28 GWh	Jan 2013	Dec 2024	Landfill Gas
Richland Center Renewable Energy LLC	Richland Center Renewable Energy LLC	Richland Center, WI	6 GWh	Feb 2013	Dec 2024	Other Biomass Gas
East Chicago	Altus Power America Management, LLC	East Chicago, IN	3 GWh	Feb 2013	Dec 2024	Solar
Griffith	Altus Power America Management, LLC	Griffith, IN	3 GWh	Feb 2013	Dec 2024	Solar
Edwardsport	Duke Energy Indiana, LLC	Edwardsport, IN	4 TWh	May 2013	Feb 2026	Natural Gas : 51.7% Coal-Derived Synthesis Gas : 40.3% Bituminous Coal : 8.0%
Lansing BWL REO Town Plant	Lansing Board of Water and Light	Lansing, MI	437 GWh	Jun 2013	Dec 2024	Natural Gas
Chatham	City of Lowell - (MI)	Lowell, MI	42 MWh	Aug 2013	Dec 2024	Natural Gas
Viresco Turtle Lake	Viresco Turtle Lake	Turtle Lake, WI	8 GWh	Aug 2013	Dec 2024	Other Biomass Gas
Rothschild Biomass Cogen Facility	Wisconsin Electric Power Co	Rothschild, WI	153 GWh	Oct 2013	Dec 2024	Wood/Wood Waste Solids : 97.4% Natural Gas : 2.6%
IND Community Solar Farm 1st Phase	Terraform Arcadia	Indianapolis, IN	14 GWh	Oct 2013	Dec 2024	Solar
Tuscola Wind II LLC	Tuscola Wind II LLC	Reese, MI	297 GWh	Oct 2013	Feb 2026	Wind
Indy Solar I, LLC	Onward Energy	Indianapolis, IN	15 GWh	Nov 2013	Feb 2026	Solar
Indy Solar III, LLC	Onward Energy	Indianapolis, IN	13 GWh	Nov 2013	Feb 2026	Solar
Indy Solar II, LLC	Onward Energy	Indianapolis, IN	15 GWh	Nov 2013	Feb 2026	Solar
Hometown Bio Energy LLC	Hometown Bio Energy LLC	Le Sueur, MN	3 GWh	Nov 2013	Dec 2024	Other Biomass Gas
Pheasant Run Wind LLC	Pheasant Run Wind LLC	Pigeon, MI	251 GWh	Nov 2013	Feb 2026	Wind
Jefferson Solar Park	Concord New Energy	Jefferson, WI	918 MWh	Nov 2013	Oct 2024	Solar
New Badger	City of Kaukauna	Kaukauna, WI	45 GWh	Dec 2013	Feb 2026	Water
Echo Wind Park	DTE Electric Company	Elkton, MI	569 GWh	Dec 2013	Feb 2026	Wind
Brookfield	DTE Electric Company	Pigeon, MI	251 GWh	Jan 2014	Feb 2026	Wind
Maywood Photovoltaic Project	ENI New Energy US Inc	Indianapolis, IN	11 GWh	Feb 2014	Dec 2024	Solar
Lakeswind Power Partners	Lakeswind Power Partners	Pelican Rapids, MN	151 GWh	Feb 2014	Dec 2024	Wind
Melrose 2	Melrose Public Utilities	Melrose, MN	3 MWh	Feb 2014	Dec 2024	Distillate Fuel Oil
Rockville Solar I LLC	Greenbacker Renewable Energy Corporation	Indianapolis, IN	3 GWh	Mar 2014	Dec 2024	Solar
IMPA Rensselaer Solar Park	Indiana Municipal Power Agency	Rensselaer, IN	985 MWh	Apr 2014	Dec 2024	Solar
Indianapolis Motor Speedway Solar PV	Boralex US Operations LLC	Indianapolis, IN	13 GWh	May 2014	Dec 2024	Solar
Lundgren Wind Project	MidAmerican Energy Co	Otho, IA	804 GWh	Jul 2014	Dec 2024	Wind
Rockville Solar II, LLC	Greenbacker Renewable Energy Corporation	Indianapolis, IN	812 MWh	Jul 2014	Dec 2024	Solar
Spiritwood Station	Great River Energy	Spiritwood, ND	198 GWh	Oct 2014	Feb 2026	Natural Gas : 52.8% Refined Coal : 47.2%
Zimmerman Energy	Landfill Energy Systems	Argos, IN	41 GWh	Oct 2014	Feb 2026	Landfill Gas
Cross Winds Energy Park	Consumers Energy Co - (MI)	Unionville, MI	721 GWh	Nov 2014	Dec 2024	Wind
Macksburg Wind Project	MidAmerican Energy Co	Macksburg, IA	330 GWh	Nov 2014	Dec 2024	Wind
Wellsburg Wind Project	MidAmerican Energy Co	Wellsburg, IA	469 GWh	Nov 2014	Dec 2024	Wind
Big Turtle Wind Farm, LLC	DTE Sustainable Generation	Harbor Beach, MI	70 GWh	Nov 2014	Dec 2024	Wind
Beebe 1B	Beebe 1B Renewable Energy, LLC	Ithaca, MI	127 GWh	Nov 2014	Dec 2024	Wind
IND Solar Farm (Phase IIA)	Terraform Arcadia	Indianapolis, IN	10 GWh	Nov 2014	Dec 2024	Solar
Duke Building 87	Concord New Energy	Indianapolis, IN	3 GWh	Nov 2014	Dec 2024	Solar
Duke Building 98	Concord New Energy	Indianapolis, IN	4 GWh	Nov 2014	Dec 2024	Solar
Duke Building 129	Concord New Energy	Indianapolis, IN	4 GWh	Nov 2014	Dec 2024	Solar
O'Fallon Renewable Energy Center	Union Electric Co - (MO)	O'Fallon, MO	2 GWh	Nov 2014	Dec 2024	Solar
Bison 4 Wind Energy Center	ALLETE, Inc.	New Salem, ND	624 GWh	Dec 2014	Dec 2024	Wind
Carroll Area Wind Farm	SRIV Partnership LLC	Templeton, IA	54 GWh	Dec 2014	Dec 2024	Wind
Hoopeston Wind LLC	Hoopeston Wind LLC	Rossville, IL	371 GWh	Feb 2015	Dec 2024	Wind
Green Cow Power	Green Cow Power LLC	Goshen, IN	13 GWh	Mar 2015	Dec 2024	Other Biomass Gas
Indy Grocers	Terraform Arcadia	Indianapolis, IN	1 GWh	May 2015	Dec 2024	Solar
Highland Wind Project (IA)	MidAmerican Energy Co	Primghar, IA	1 TWh	May 2015	Feb 2026	Wind
Coldwater Peaking Plant	Coldwater Board of Public Util	Coldwater, MI	288 MWh	Jun 2015	Dec 2024	Natural Gas
IMPA Tell City Solar Park	Indiana Municipal Power Agency	Tell City, IN	2 GWh	Jun 2015	Dec 2024	Solar
IMPA Peru Solar Park	Indiana Municipal Power Agency	Peru, IN	4 GWh	Jul 2015	Dec 2024	Solar
INDY III	Terraform Arcadia	Indianapolis, IN	3 GWh	Jul 2015	Dec 2024	Solar
Border Winds Wind Farm	Northern States Power Co - Minnesota	Rolla, ND	614 GWh	Jul 2015	Dec 2024	Wind
Pleasant Valley Wind Farm	Northern States Power Co - Minnesota	Dexter, MN	770 GWh	Jul 2015	Dec 2024	Wind
IMPA Crawfordsville Solar Park	Indiana Municipal Power Agency	Crawfordsville, IN	4 GWh	Aug 2015	Dec 2024	Solar
IKEA St. Louis 410	IKEA Property Inc	St. Louis, MO	328 MWh	Aug 2015	Apr 2025	Solar
Domino Farms Solar	DTE Electric Company	Ann Arbor, MI	1 GWh	Aug 2015	Feb 2026	Solar
Wind GEM	Wind GEM, LLC	Stuart, IA	5 GWh	Aug 2015	Dec 2024	Wind

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#60	Alcoa Power Generating, Inc. - Yadkin Division	582.3 GWh	4
#27	Associated Electric Cooperative, Inc.	23.9 TWh	47
#13	Duke Energy Carolinas	112.5 TWh	565
#52	Duke Energy Progress West	4.4 TWh	10
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	34.0 TWh	25
#1	PJM Interconnection, LLC	881.5 TWh	2,465
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#5	Southwest Power Pool	302.9 TWh	835
#51	Southwestern Power Administration	4.6 TWh	34
#9	Tennessee Valley Authority	163.1 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	881.5 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	664.4 TWh	2,831
#3	Electric Reliability Council of Texas, Inc.	488.2 TWh	1,313
#5	Southwest Power Pool	302.9 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	176.8 TWh	2,075
#9	Tennessee Valley Authority	163.1 TWh	204
#10	Florida Power & Light Co.	150.9 TWh	187
#12	New York Independent System Operator	134.4 TWh	1,211
#13	Duke Energy Carolinas	112.5 TWh	565