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
Hazel Solar, LLC	Hazel Solar, LLC	Howard City, MI	4 GWh	Jan 2021	Dec 2025	Solar
Carpenter	Entergy Arkansas LLC	Hot Springs, AR	147 GWh	Dec 1931	Dec 2025	Water
Hopkinton	City of Hopkinton - (IA)	Hopkinton, IA	54 MWh	Aug 1973	Dec 2025	Distillate Fuel Oil
Rail Splitter Wind Farm	Rail Splitter Wind Farm LLC	Hopedale, IL	269 GWh	Jul 2009	Dec 2025	Wind
Medanos Solar LLC	Dimension Energy LLC	Homer, IL	96 MWh	Nov 2025	Dec 2025	Solar
491 E 48th Street	City of Holland - (MI)	Holland, MI	142 GWh	Apr 1992	Dec 2025	Natural Gas
Holland Energy Park	City of Holland - (MI)	Holland, MI	974 GWh	May 2017	Dec 2025	Natural Gas
Holcombe	Northern States Power Co - Minnesota	Holcombe, WI	81 GWh	Dec 1949	Dec 2025	Water
Westrock Hodge (LA)	Westrock (LA)	Hodge, LA	489 GWh	Nov 1952	Dec 2025	Black Liquor : 51.3% Natural Gas : 35.6% Wood/Wood Waste Solids : 13.1%
Hobart Solar, LLC	AES Distributed Energy	Hobart, IN	49 MWh	Oct 2012	Dec 2025	Solar
Grand Casino Hinckley Solar	DG Central 1, LLC	Hinckley, MN	6 GWh	Apr 2022	Dec 2025	Solar
Crescent Wind Park	Consumers Energy Co - (MI)	Hillsdale, MI	364 GWh	Jan 2021	Jul 2026	Wind
Hillsdale	Hillsdale Board of Public Wks	Hillsdale, MI	711 MWh	Feb 1947	Dec 2025	Natural Gas : 81.9% Distillate Fuel Oil : 18.1%
Hillsboro	City of Hillsboro - (ND)	Hillsboro, ND	17 MWh	Jun 2002	Dec 2025	Distillate Fuel Oil
American Crystal Sugar Hillsboro	American Crystal Sugar Co	Hillsboro, ND	85 GWh	Aug 1990	Dec 2025	Subbituminous Coal
Anacott	Generate Capital	Hillsboro, IL	2 GWh	Sep 2025	Dec 2025	Solar
Highland	City of Highland - (IL)	Highland, IL	222 MWh	Feb 1967	Dec 2025	Distillate Fuel Oil
Hibbing	Hibbing Public Utilities Comm	Hibbing, MN	40 GWh	Mar 1965	Dec 2025	Natural Gas : 52.2% Wood/Wood Waste Solids : 46.4% Bituminous Coal : 1.4%
Thunder Spirit Wind, LLC	Montana-Dakota Utilities Co	Hettinger, ND	568 GWh	Nov 2015	Dec 2025	Wind
George Johnson	Wolverine Power Supply Coop	Hersey, MI	43 GWh	Aug 1993	Dec 2025	Natural Gas
Lukuc B Community Solar LLC CSG	Lukuc B Community Solar LLC	Herrin, IL	4 GWh	Jun 2021	Dec 2025	Solar
Clendenin A Community Solar, LLC CSG	Clendenin A Community Solar, LLC	Herrin, IL	4 GWh	Jun 2021	Dec 2025	Solar
SV CSG Bishop 1 LLC	SunVest Solar LLC	Herrin, IL	106 MWh	Nov 2025	Dec 2025	Solar
Dressor Plains Solar, LLC	Dressor Plains Solar, LLC	Herrick, IL	225 GWh	Aug 2021	Jul 2026	Solar
Blazing Star Wind Farm 1	Northern States Power Co - Minnesota	Hendricks, MN	851 GWh	Mar 2020	Jul 2026	Wind
Blazing Star 2 Wind Farm	Northern States Power Co - Minnesota	Hendricks, MN	840 GWh	Dec 2020	Jul 2026	Wind
Tsar Nicholas LLC	CHI Operations Inc	Hendricks, MN	4 GWh	Jan 2001	Dec 2024	Wind
Sun River LLC	CHI Operations Inc	Hendricks, MN	4 GWh	Jan 2001	Dec 2024	Wind
Julia Hills LLC	CHI Operations Inc	Hendricks, MN	4 GWh	Jan 2001	Dec 2024	Wind
Jessica Mills LLC	CHI Operations Inc	Hendricks, MN	4 GWh	Jan 2001	Dec 2024	Wind
Jack River LLC	CHI Operations Inc	Hendricks, MN	4 GWh	Jan 2001	Dec 2024	Wind
Autumn Hills LLC	CHI Operations Inc	Hendricks, MN	4 GWh	Jan 2001	Dec 2024	Wind
Lakota Ridge LLC	Lakota Ridge, LLC (Longroad)	Hendricks, MN	14 GWh	Mar 1999	Dec 2025	Wind
Shaokatan Hills LLC	Shaokatan Hills, LLC (Longroad)	Hendricks, MN	11 GWh	Jul 1999	Dec 2025	Wind
Kramer Solar CSG	Geronimo Power	Hector, MN	6 GWh	Nov 2017	Dec 2025	Solar
Jasper County Solar Project	Biscayne Falls SPV, LLC	Heber, IN	52 GWh	Nov 2025	Jul 2026	Solar
Trego	Northern States Power Co - Minnesota	Hayward, WI	5 GWh	Dec 1926	Dec 2025	Water
Dodge Renewables 2	Dodge Renewables 2, LLC	Hayfield, MN	2 GWh	Aug 2022	Dec 2025	Solar
Hayfield Solar I LLC CSG	REA Investments, LLC	Hayfield, MN	2 GWh	Jan 2021	Dec 2025	Solar
Hayfield Solar III LLC CSG	REA Investments, LLC	Hayfield, MN	2 GWh	Jan 2021	Dec 2025	Solar
Cannelton Hydroelectric Plant	American Mun Power-Ohio, Inc	Hawesville, KY	417 GWh	Dec 2015	Dec 2025	Water
Kentucky Mills	Domtar Paper Company LLC	Hawesville, KY	338 GWh	May 2001	Dec 2025	Black Liquor : 75.4% Wood/Wood Waste Solids : 23.7% Natural Gas : 0.8%
Hastings City Hydroelectric	Hastings Lock & Dam	Hastings, MN	14 GWh	Dec 1991	Dec 2025	Water
GRE Marshan Solar	SoCore Energy LLC	Hastings, MN	1 GWh	Oct 2017	Dec 2025	Solar
Hastings Solar	Enel Green Power NA, Inc.	Hastings, MN	8 GWh	Nov 2016	Dec 2025	Solar
Alden Road Harvard Solar 1	Alden Road Harvard Solar 1, LLC	Harvard, IL	4 GWh	Nov 2020	Dec 2025	Solar
Lobelia 1	Greenbacker Renewable Energy Corporation	Harvard, IL	5 GWh	Nov 2024	Dec 2025	Solar
USS Solar Way LLC CSG	Standard Solar	Hartland, MN	2 GWh	Oct 2020	Dec 2025	Solar
USS All In Solar LLC CSG	Standard Solar	Hartland, MN	2 GWh	Sep 2020	Dec 2025	Solar
Bent Tree Wind Farm Phase 1	Wisconsin Power & Light Co	Hartland, MN	334 GWh	Jan 2011	Dec 2025	Wind
Waste Management Northern Oaks LFGTE	WM Renewable Energy LLC	Harrison, MI	9 GWh	Oct 2010	Dec 2025	Landfill Gas
Osceola Windpower II	Osceola Windpower II	Harris, IA	191 GWh	Aug 2008	Jul 2026	Wind
Harlan	Harlan Municipal Utilities - (IA)	Harlan, IA	1 MWh	Jun 2001	Dec 2025	Distillate Fuel Oil
Prairie Rose Wind Farm	Prairie Rose Wind Farm	Hardwick, MN	457 GWh	Nov 2012	Jul 2026	Wind
Big Turtle Wind Farm, LLC	DTE Sustainable Generation	Harbor Beach, MI	76 GWh	Nov 2014	Dec 2025	Wind
Sigel Wind Park	DTE Electric Company	Harbor Beach, MI	246 GWh	Nov 2012	Jul 2026	Wind
Big Turtle Wind Farm 2	DTE Electric Company	Harbor Beach, MI	104 GWh	Sep 2016	Dec 2025	Wind
POET Biorefining-Hanlontown, LLC	POET Biorefining-Hanlontown, LLC	Hanlontown, IA	13 GWh	Dec 2018	Dec 2025	Natural Gas
Franklin County Solar	MidAmerican Energy Co	Hampton, IA	13 GWh	Dec 2021	Dec 2025	Solar
General Dynamics	Today's Power, Inc.	Hampton, AR	3 GWh	Oct 2020	Dec 2025	Solar
Hampton MN GRE	SoCore Energy LLC	Hampton Township, MN	3 GWh	Sep 2018	Sep 2025	Solar
Bright Future	OneEnergy, Inc.	Hammond, WI	361 MWh	Sep 2025	Dec 2025	Solar
Adelite Solar, LLC	Birch Creek Development	Hamilton, MO	20 GWh	-	Jul 2026	Solar
USS Martha Solar (CSG)	United States Solar Corporation	Hamburg, MN	2 GWh	Dec 2023	Dec 2025	Solar
Ashley-Chicot Solar	Today's Power, Inc.	Hamburg, AR	2 GWh	Jul 2018	Dec 2025	Solar
Halstad	City of Halstad - (MN)	Halstad, MN	34 MWh	Aug 2007	Dec 2025	Distillate Fuel Oil
Taft Cogeneration Facility	Occidental Chemical Corporation	Hahnville, LA	6 TWh	Jun 2002	Jul 2026	Natural Gas : 97.3% Other Gas : 2.7%
Trimbelle (Pierce Pepin)	Greenbacker Renewable Energy Corporation	Hager City, WI	3 GWh	Jan 2024	Dec 2025	Solar
Platt Solar	Cannon River LLC	Hadley, MN	2 GWh	Dec 2022	Dec 2025	Solar
Leo Community Solar	Geronimo Power	Hadley, MN	2 GWh	Nov 2018	Dec 2025	Solar
Cataract (MI)	Cataract Hydro, LLC	Gwinn, MI	5 GWh	Jan 1988	Dec 2025	Water
Green River Solar	Green River Solar, LLC	Guston, KY	393 GWh	Apr 2025	Jul 2026	Solar
Grundy Center City Light Plant	Grundy Center Mun Light & Power	Grundy Center, IA	109 MWh	Oct 1963	Dec 2025	Distillate Fuel Oil
Grinnell College	Azimuth 180 Solar Electric, LLC	Grinnell, IA	4 GWh	Mar 2024	Dec 2025	Solar
Venus Wind 3 LLC	Novis Renewables, LLC	Grinnell, IA	9 GWh	Feb 2017	Dec 2025	Wind
Griffith	Altus Power America Management, LLC	Griffith, IN	3 GWh	Feb 2013	Dec 2025	Solar
Delta's Edge Solar	Cubico USA, LLC	Greenwood, MS	163 GWh	Oct 2023	Jul 2026	Solar
Hurricane Creek Lift Station	Johnson County Rural E M C	Greenwood, IN	143 MWh	Aug 2004	Dec 2024	Distillate Fuel Oil
Armstrong 1	Greenbacker Renewable Energy Corporation	Greenwood, IL	4 GWh	Nov 2024	Dec 2025	Solar
Pivot Energy Minnesota Solar 10	Pivot Energy	Greenwald, MN	1 GWh	May 2023	Dec 2025	Solar
Gerald Andrus	Entergy Mississippi LLC	Greenville, MS	567 GWh	Dec 1974	Nov 2025	Natural Gas : 99.9%
Fish Creek Solar Park	DTE Electric Company	Greenville, MI	100 GWh	-	Jul 2026	Solar
Decatur Co. Solar RES (IN)	Hoosier Energy R E C, Inc	Greensburg, IN	2 GWh	Aug 2017	Dec 2025	Solar
Wolverine	Wolverine Wind Energy, LLC	Greenfield, IA	5 GWh	Sep 2010	Dec 2025	Wind
Arbor Hill Wind Farm	MidAmerican Energy Co	Greenfield, IA	1 TWh	Nov 2018	Jul 2026	Wind
Sky Volt	Sky Volt, LLC	Greenfield, IA	5 GWh	Jul 2012	Dec 2025	Wind
Meadow Ridge	Meadow Ridge Wind Energy, LLC	Greenfield, IA	2 GWh	Jun 2012	Dec 2025	Wind
Greenfield Wind	Greenfield Wind Power, LLC	Greenfield, IA	4 GWh	Jul 2012	Dec 2025	Wind
North Generation Plant	City of Greenfield - (IA)	Greenfield, IA	11 MWh	Dec 2001	Dec 2025	Distillate Fuel Oil
Downtown Generation Plant	City of Greenfield - (IA)	Greenfield, IA	15 MWh	Jun 2020	Dec 2025	Distillate Fuel Oil
Arbor Hill Solar	MidAmerican Energy Co	Greenfield, IA	46 GWh	Dec 2021	Jul 2026	Solar
Nimbus Wind Farm	Nimbus Wind Farm LLC	Green Forest, AR	13 GWh	-	Jul 2026	Wind
Consumer Operations LLC	Georgia-Pacific Consumer Oper. Green Bay LLC	Green Bay, WI	242 GWh	Dec 1953	Jul 2026	Natural Gas
Pulliam	Wisconsin Public Service Corp	Green Bay, WI	62 GWh	Aug 1949	Jul 2026	Natural Gas
Elk Wind Farm	Greenbacker Renewable Energy Corporation	Greeley, IA	173 GWh	Nov 2011	Dec 2025	Wind
Grayling Generating Station	NorthStar Clean Energy	Grayling, MI	182 GWh	Apr 1992	Dec 2025	Wood/Wood Waste Solids
Letts Creek Solar, LLC	AES Distributed Energy	Grass Lake, MI	25 GWh	Nov 2022	Dec 2025	Solar
Putnam Solar 1B	Pivot Energy	Granville, IL	4 GWh	May 2024	Dec 2025	Solar
Putnam Solar 1	Pivot Energy	Granville, IL	4 GWh	Apr 2024	Dec 2025	Solar
Grantsburg Diesel	Northwestern Wisconsin Elec Co	Grantsburg, WI	26 MWh	Nov 1963	Dec 2025	Distillate Fuel Oil

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