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
Greenwood (MI)	DTE Electric Company	Avoca, MI	2 TWh	Jun 1979	Jul 2026	Natural Gas
Greenstone Solar, LLC	Greenstone Solar, LLC	Coldwater, MI	35 GWh	Sep 2023	Dec 2025	Solar
Greenfield Wind	Greenfield Wind Power, LLC	Greenfield, IA	4 GWh	Jul 2012	Dec 2025	Wind
Greenfield	OneEnergy, Inc.	Coon Valley, WI	200 MWh	Oct 2025	Dec 2025	Solar
Greenback Energy	Greenback Energy, LLC (Longroad)	Pipestone, MN	2 GWh	Nov 2004	Dec 2025	Wind
Green River Solar	Green River Solar, LLC	Guston, KY	393 GWh	Apr 2025	Jul 2026	Solar
Green Lake Solar	Heritage Sustainable Energy. LLC	Interlochen, MI	1 GWh	Sep 2018	Dec 2025	Solar
Green Energy Machine	Green Energy Machine, LLC	Anita, IA	6 GWh	May 2016	Dec 2025	Wind
Green Cow Power	Green Cow Power LLC	Goshen, IN	11 GWh	Mar 2015	Dec 2025	Other Biomass Gas
Green Acres Breeze LLC	Midwest Power Partners LLC	Rushmore, MN	3 GWh	Apr 2006	Dec 2025	Wind
Greater Des Moines	MidAmerican Energy Co	Pleasant Hill, IA	2 TWh	Apr 2003	Dec 2025	Natural Gas
Great Pathfinder Wind	Great Pathfinder Wind	Stratford, IA	726 GWh	Jan 2023	Jul 2026	Wind
GRE Marshan Solar	SoCore Energy LLC	Hastings, MN	1 GWh	Oct 2017	Dec 2025	Solar
GRE Cambridge Solar	SoCore Energy LLC	Cambridge, MN	4 GWh	Nov 2019	Dec 2025	Solar
Grayling Generating Station	NorthStar Clean Energy	Grayling, MI	182 GWh	Apr 1992	Dec 2025	Wood/Wood Waste Solids
Gratiot Wind Park	DTE Electric Company	Breckenridge, MI	214 GWh	Oct 2011	Jul 2026	Wind
Gratiot Farms Wind Project	Consumers Energy Co - (MI)	Carson City, MI	332 GWh	Nov 2020	Jul 2026	Wind
Gratiot County Wind LLC	Invenergy Services LLC	Breckenridge, MI	262 GWh	Apr 2012	Dec 2025	Wind
Grantsburg Diesel	Northwestern Wisconsin Elec Co	Grantsburg, WI	26 MWh	Nov 1963	Dec 2025	Distillate Fuel Oil
Grant County Wind LLC	Grant County Wind, LLC	Woodstock, MN	53 GWh	Jul 2010	Dec 2025	Wind
Grant County	Wisconsin Power & Light Co	Town of Potosi, WI	380 GWh	Apr 2024	Jul 2026	Solar
Granite Falls	City of Granite Falls - (MN)	Granite Falls, MN	2 GWh	Jul 1932	Dec 2025	Water
Granite City Works	United States Steel Granite City Works	Granite City, IL	448 GWh	May 2010	Jul 2026	Purchased Steam : 49.2% Natural Gas : 43.8% Blast Furnace Gas : 7.0%
Grandfather Falls	Wisconsin Public Service Corp	Irma, WI	79 GWh	Nov 1938	Dec 2025	Water
Grand Valley Solar Gardens	Consumers Energy Co - (MI)	Allendale, MI	4 GWh	Mar 2016	Jul 2026	Solar
Grand River	Energy Developments, Inc d/b/a EDL	Grand Ledge, MI	8 GWh	Mar 1991	Dec 2025	Landfill Gas
Grand Rapids	Wisconsin Public Service Corp	Ingalls, MI	35 GWh	May 1918	Dec 2025	Water
Grand Meadow (PV)	OneEnergy, Inc.	Grand Meadow, MN	425 MWh	Oct 2025	Dec 2025	Solar
Grand Meadow	Northern States Power Co - Minnesota	Dexter, MN	379 GWh	Nov 2008	Dec 2025	Wind
Grand Marais	City of Grand Marais - (MN)	Grand Marais, MN	164 MWh	Jan 2004	Dec 2025	Distillate Fuel Oil
Grand Junction	City of Grand Junction - (IA)	Grand Junction, IA	41 MWh	Nov 1994	Dec 2025	Distillate Fuel Oil
Grand Gulf	System Energy Resources, Inc	Port Gibson, MS	10 TWh	Jun 1985	Jul 2026	Nuclear
Grand Casino Hinckley Solar	DG Central 1, LLC	Hinckley, MN	6 GWh	Apr 2022	Dec 2025	Solar
Grand Blanc Generating Station	Energy Developments, Inc d/b/a EDL	Grand Blanc, MI	50 GWh	Jun 1994	Dec 2025	Landfill Gas
Graettinger	City of Graettinger - (IA)	Graettinger, IA	49 MWh	Jul 1957	Dec 2025	Distillate Fuel Oil
Gowrie	Gowrie Municipal Utilities - (IA)	Gowrie, IA	3 MWh	Dec 2012	Dec 2025	Distillate Fuel Oil
Gopher CSG	SoCore Energy LLC	Taylor Falls, MN	8 GWh	Dec 2017	Dec 2025	Solar
Goose Lake MN DPC-GM	ENGIE Generation North America LLC	Albert Lea, MN	3 GWh	Jan 2019	Dec 2025	Solar
Goodhue Community Solar Two LLC	Madison Energy Holdings LLC	Zumbrota, MN	2 GWh	Mar 2020	Dec 2025	Solar
Goodhue Community Solar Three LLC CSG	Madison Energy Holdings LLC	Zumbrota, MN	2 GWh	Jan 2020	Dec 2025	Solar
Goodhue Community Solar One LLC CSG	Madison Energy Holdings LLC	Zumbrota, MN	2 GWh	Jan 2020	Dec 2025	Solar
Goldenrod (IL)	Generate Capital	Viola, IL	6 GWh	Jul 2025	Dec 2025	Solar
Golden Plains	Interstate Power and Light Co	Buffalo Center, IA	784 GWh	Feb 2020	Jul 2026	Wind
Gohman Community Solar (CSG)	CleanCapital Holdings	Clear Lake, MN	2 GWh	Jan 2020	Dec 2025	Solar
Glendive GT	Montana-Dakota Utilities Co	Glendive, MT	16 GWh	May 1979	Dec 2025	Natural Gas : 98.8% Distillate Fuel Oil : 1.2%
Glencoe	Glencoe Light & Power Comm	Glencoe, MN	146 MWh	May 1957	Dec 2025	Distillate Fuel Oil : 99.7%
Glen Ullin Station 6	Montana-Dakota Utilities Co	Glen Ullin, ND	32 GWh	Jun 2009	Dec 2025	Waste Heat
Glen Ullin Energy Center	ALLETE Clean Energy	Glen Ullin, ND	433 GWh	Nov 2019	Jul 2026	Wind
Glaciers Edge Wind Project	EDF Renewable Asset Holdings, Inc.	Cleghorn, IA	815 GWh	Nov 2019	Jul 2026	Wind
Glacier Sands Wind Power, LLC	Glacier Sands Wind Power, LLC	Mason City, IL	644 GWh	Oct 2021	Jul 2026	Wind
Glacier Hills	Wisconsin Electric Power Co	Cambria, WI	331 GWh	Nov 2011	Jul 2026	Wind
GL Wind	GL Wind LLC	Lewiston, MN	10 GWh	Nov 2011	Dec 2025	Wind
Gilliam South	City of Stuart - (IA)	Stuart, IA	4 MWh	Jan 2001	Dec 2025	Distillate Fuel Oil
Gibson Solar	Gibson Solar, LLC	Princeton, IN	380 GWh	Jul 2025	Jul 2026	Solar
Gibson City Energy Center LLC	Gibson City Energy Center LLC	Gibson City, IL	77 GWh	May 2000	Dec 2025	Natural Gas
Gibson	Duke Energy Indiana, LLC	Owensville, IN	11 TWh	Mar 1975	Jul 2026	Bituminous Coal : 99.6%
Gibbon Solar	Green Street Power Partners	Gibbon, MN	6 GWh	May 2019	Dec 2025	Solar
Germantown	Wisconsin Electric Power Co	Germantown, WI	33 GWh	Jun 1978	Dec 2025	Natural Gas : 83.1% Distillate Fuel Oil : 16.9%
Geranium Solar, LLC	Geronimo Power	Raymond, MN	2 GWh	Sep 2020	Dec 2025	Solar
Geranium Solar	Generate Capital	Spring Valley, IL	148 MWh	Nov 2025	Dec 2025	Solar
Gerald Andrus	Entergy Mississippi LLC	Greenville, MS	567 GWh	Dec 1974	Nov 2025	Natural Gas : 99.9%
Georgia-Pacific Monticello Paper	Georgia-Pacific Monticello LLC	Monticello, MS	517 GWh	May 1968	Dec 2025	Black Liquor : 49.5% Natural Gas : 33.6% Wood/Wood Waste Solids : 16.9%
Georgia-Pacific Corp - Nekoosa Mill	Domtar Industries Inc	Nekoosa, WI	153 GWh	Dec 1911	Jul 2026	Natural Gas : 42.7% Black Liquor : 41.6% Water : 15.7%
Georgetown (Polk Burnett)	Greenbacker Renewable Energy Corporation	Balsam Lake, WI	4 GWh	Oct 2023	Dec 2025	Solar
Georgetown	AES Indiana	Indianapolis, IN	307 GWh	May 2000	Dec 2025	Natural Gas
George Neal South	MidAmerican Energy Co	Salix, IA	2 TWh	Jun 1979	Jul 2026	Subbituminous Coal : 99.0% Distillate Fuel Oil : 1.0%
George Neal North	MidAmerican Energy Co	Sergeant Bluff, IA	2 TWh	Apr 1964	Jul 2026	Subbituminous Coal : 98.2% Natural Gas : 1.8%
George Johnson	Wolverine Power Supply Coop	Hersey, MI	43 GWh	Aug 1993	Dec 2025	Natural Gas
Geneseo	City of Geneseo - (IL)	Geneseo, IL	8 GWh	Jun 1957	Jul 2026	Wind : 71.7% Solar : 21.5% Distillate Fuel Oil : 6.8%
Genesee Solar Project	Genesee Solar Energy, LLC	Flint, MI	42 GWh	Nov 2025	Jul 2026	Solar
Genesee Power Station LP	NorthStar Clean Energy	Flint, MI	116 GWh	Nov 1995	Dec 2025	Wood/Wood Waste Solids : 99.9%
General Dynamics	Today's Power, Inc.	Hampton, AR	3 GWh	Oct 2020	Dec 2025	Solar
Gemini Community Solar	Gemini Community Solar	Scandia, MN	5 GWh	Aug 2017	Dec 2025	Solar
Geismar Cogen	Air Liquide Large Industries U S LP	Geismar, LA	528 GWh	Dec 1999	Dec 2025	Natural Gas
Geismar	BASF Corporation	Geismar, LA	626 GWh	Jun 1985	Dec 2025	Natural Gas : 85.5% Other Gas : 14.5%
Geddes 2 Solar, LLC	Geddes 2 Solar, LLC	Saginaw, MI	4 GWh	Dec 2020	Dec 2025	Solar
Geddes 1 Solar, LLC	Geddes 1 Solar, LLC	Saginaw, MI	4 GWh	Nov 2020	Dec 2025	Solar
Gaylord - Wolverine	Wolverine Power Supply Coop	Gaylord, MI	37 GWh	May 2001	Dec 2025	Natural Gas
Gaylord Container Bogalusa	Temple-Inland Corp	Bogalusa, LA	432 GWh	May 1979	Jul 2026	Black Liquor : 56.9% Wood/Wood Waste Solids : 36.6% Natural Gas : 6.5%
Gas Turbine (IA)	Cedar Falls Utilities	Cedar Falls, IA	1 GWh	Dec 1967	Dec 2025	Natural Gas
Gas City Solar Park	Indiana Municipal Power Agency	Gas City, IN	4 GWh	May 2020	Dec 2025	Solar
Gary Works	United States Steel-Gary	Gary, IN	995 GWh	Mar 1997	May 2026	Blast Furnace Gas : 57.0% Natural Gas : 43.0%
Garden Wind LLC	Garden Wind LLC	Zearing, IA	322 GWh	Nov 2009	Jul 2026	Wind
Garden 2 Solar Park	DTE Sustainable Generation	Garden Township, MI	3 GWh	May 2022	Dec 2025	Solar
Garden 1 Solar Park	DTE Sustainable Generation	Garden Township, MI	1 GWh	Aug 2016	Dec 2025	Solar
Galesburg Solar Array	Onsite Partners, LLC	Oquawka, IL	3 GWh	Feb 2020	Dec 2025	Solar
Galactic Wind	Galactic Wind	Waunakee, WI	21 GWh	Nov 2012	Dec 2025	Wind
G McNeilus Wind Farm Dodge Center	Justin McNeilus	Dodge Center, MN	91 GWh	Aug 2002	Dec 2025	Wind
G Flow Wind LLC	Midwest Power Partners LLC	Rushmore, MN	3 GWh	Apr 2006	Dec 2025	Wind
Frontenac Holdco LLC, CSG	Frontenac Holdco LLC	Frontenac, MN	8 GWh	Feb 2019	Dec 2025	Solar
French Road Solar II	French Road Solar II, LLC	Burlington, IL	4 GWh	Feb 2022	Dec 2025	Solar
French Landing Dam	Eagle Creek Renewable Energy, LLC	Belleville, MI	5 GWh	Nov 1988	Dec 2025	Water
French Island	Northern States Power Co - Minnesota	La Cross, WI	68 GWh	Dec 1939	Jul 2026	Wood/Wood Waste Solids : 41.6% Non-biogenic Municipal Solid Waste : 25.4% Biogenic Municipal Solid Waste : 20.7% Distillate Fuel Oil : 12.0%
Fremont Community Digester, LLC	Generate Fremont Digester, LLC.	Newaygo, MI	375 MWh	Nov 2012	Dec 2024	Other Biomass Gas
Freeburg	Village of Freeburg - (IL)	Freeburg, IL	145 MWh	Jul 1948	Dec 2025	Distillate Fuel Oil
Freeborn Wind Farm	Northern States Power Co - Minnesota	Glenville, MN	769 GWh	Apr 2021	Jul 2026	Wind
Franklin Heating Station	Franklin Heating Station	Rochester, MN	63 GWh	Dec 1950	Jul 2026	Natural Gas : 81.5% Purchased Steam : 17.2% Distillate Fuel Oil : 1.3%
Franklin CSG 1	Franklin CSG 1 LLC	Franklin, MN	913 MWh	Jun 2025	Dec 2025	Solar
Franklin County Wind Farm	Interstate Power and Light Co	Iowa Falls, IA	271 GWh	Nov 2012	Dec 2025	Wind
Franklin County Solar	MidAmerican Energy Co	Hampton, IA	13 GWh	Dec 2021	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