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	Nov 2025
Annual Generation	655.1 TWh
Power Plants	2,831
Utilities	1,296
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 \| 35.7% Coal \| 29% Wind \| 14.9% Nuclear \| 13.9% Solar \| 4.5% Water \| 1.5% Other Fuel \| 0.6%

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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
Michigan Power LP	Michigan Power Limited Partnership	Ludington, MI	1 TWh	Sep 1995	Dec 2024	Natural Gas
Ergon Refining Vicksburg	Ergon Refining Inc	Vicksburg, MS	32 GWh	Feb 1995	Dec 2024	Natural Gas
Alliant SBD 9403 Aegon DC	Industrial Energy Applications Inc	Cedar Rapids, IA	10 MWh	Dec 1994	Dec 2024	Distillate Fuel Oil
Deercroft I & II LFGTE	Wabash Valley Power Assn, Inc	Michigan City, IN	19 GWh	Jul 1999	Dec 2024	Landfill Gas
Indiana Harbor E 5 AC Station	Northlake Energy	East Chicago, IN	655 GWh	Apr 1996	Dec 2024	Blast Furnace Gas : 92.6% Natural Gas : 7.4%
LSP-Cottage Grove LP	Cottage Grove Operating Services LLC	Cottage Grove, MN	1 TWh	Sep 1997	Dec 2024	Natural Gas
De Pere Energy Center	Wisconsin Public Service Corp	De Pere, WI	138 GWh	May 1999	Dec 2024	Natural Gas : 68.9% Distillate Fuel Oil : 31.1%
Davenport Water Pollution Control Plant	Davenport City of	Davenport, IA	6 GWh	Apr 1995	Dec 2024	Other Biomass Gas : 90.0% Natural Gas : 10.0%
Portside Energy	Primary Energy Recycling Holdings, LLC	Portage, IN	256 GWh	Aug 1997	Dec 2024	Natural Gas
Kalamazoo River Generating Station	CMS Generation MI Power LLC	Comstock, MI	245 GWh	May 1999	Dec 2024	Natural Gas
Livingston Generating Station	CMS Generation MI Power LLC	Gaylord, MI	20 GWh	May 1999	Dec 2024	Natural Gas
Vermillion Energy Facility	Duke Energy Ohio Inc	Cayuga, IN	728 GWh	May 2000	Dec 2024	Natural Gas
NAFTA Region Olefins Complex Cogen Fac	BASF Corp	Port Arthur, TX	562 GWh	Jun 2001	Dec 2024	Natural Gas
Alliant Energy Neenah	Wisconsin Power & Light Co	Neenah, WI	740 GWh	Apr 2000	Dec 2024	Natural Gas
Worthington Generation LLC	Hoosier Energy R E C, Inc	Worthington, IN	195 GWh	May 2000	Dec 2024	Natural Gas
Gibson City Energy Center LLC	Gibson City Energy Center LLC	Gibson City, IL	109 GWh	May 2000	Dec 2024	Natural Gas
Pinckneyville	Union Electric Co - (MO)	Pinckneyville, IL	80 GWh	May 2000	Dec 2024	Natural Gas
Lake Benton I	ALLETE Clean Energy	Lake Benton, MN	244 GWh	Jan 1998	Dec 2024	Wind
Harry L. Oswald	Arkansas Electric Coop Corp	Little Rock, AR	1 TWh	Jun 2002	Dec 2024	Natural Gas
Wheatland Generating Facility	Duke Energy Indiana, LLC	Wheatland, IN	131 GWh	May 2000	Dec 2024	Natural Gas
Audrain Generating Station	Union Electric Co - (MO)	Vandalia, MO	146 GWh	Jan 2001	Dec 2024	Natural Gas
Shelby Energy County	Shelby County Energy Center, LLC	Neoga, IL	201 GWh	May 2000	Dec 2024	Natural Gas
Lake Benton II	Northern States Power Co - Minnesota	Ruthton, MN	438 GWh	May 1999	Dec 2024	Wind
Storm Lake II	ALLETE Clean Energy	Alta, IA	114 GWh	Mar 1999	Dec 2024	Wind
Air Products Port Arthur	Air Products LLC	Port Arthur, TX	998 GWh	Oct 2000	Dec 2024	Natural Gas : 92.8% Other Gas : 7.2%
Woodstock Windfarm	Consolidated Edison Development Inc.	Woodstock, MN	28 GWh	Apr 1999	Dec 2024	Wind
Lakota Ridge LLC	Lakota Ridge, LLC (Longroad)	Hendricks, MN	17 GWh	Mar 1999	Dec 2024	Wind
Shaokatan Hills LLC	Shaokatan Hills, LLC (Longroad)	Hendricks, MN	12 GWh	Jul 1999	Dec 2024	Wind
Kentucky Mills	Domtar Paper Company LLC	Hawesville, KY	286 GWh	May 2001	Dec 2024	Black Liquor : 77.7% Wood/Wood Waste Solids : 22.3%
Columbia Energy Center	City of Columbia - (MO)	Columbia, MO	13 GWh	May 2001	Dec 2024	Natural Gas
MMSD South Shore Wastewater	Milwaukee Metro Sewerage Dist	Oak Creek, WI	26 GWh	Jul 2000	Dec 2024	Other Biomass Gas : 88.7% Natural Gas : 11.3%
Security	TX LFG Energy, LP	Cleveland, TX	6 GWh	Feb 2003	Dec 2024	Landfill Gas
Combined Locks Energy Center	McKinley Paper	Combined Locks, WI	310 GWh	Apr 2002	Dec 2024	Natural Gas
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
Winters Spawn LLC	CHI Operations Inc	Lake Benton, MN	5 GWh	Dec 2000	Dec 2024	Wind
Twin Lake Hills LLC	CHI Operations Inc	Lake Benton, MN	5 GWh	Nov 2000	Dec 2024	Wind
Spartan Hills LLC	CHI Operations Inc	Lake Benton, MN	5 GWh	Dec 2000	Dec 2024	Wind
Soliloquoy Ridge LLC	CHI Operations Inc	Lake Benton, MN	5 GWh	Dec 2000	Dec 2024	Wind
Ruthton Ridge LLC	CHI Operations Inc	Lake Benton, MN	5 GWh	Dec 2000	Dec 2024	Wind
Hope Creek LLC	CHI Operations Inc	Lake Benton, MN	5 GWh	Dec 2000	Dec 2024	Wind
Hadley Ridge LLC	CHI Operations Inc	Lake Benton, MN	5 GWh	Nov 2000	Dec 2024	Wind
Florence Hills LLC	CHI Operations Inc	Lake Benton, MN	5 GWh	Dec 2000	Dec 2024	Wind
Agassiz Beach LLC	CHI Operations Inc	Averill, MN	4 GWh	Jan 2001	Dec 2024	Wind
GRS C&C	Gas Recovery Systems Inc	Marshall, MI	21 GWh	Jan 1995	Dec 2024	Landfill Gas
Flambeau Crowley Rapids Project	Renewable World Energies LLC	Park Falls, WI	3 GWh	Dec 1929	Dec 2024	Water
Flambeau Lower Project	Renewable World Energies LLC	Park Falls, WI	3 GWh	Dec 1922	Dec 2024	Water
Dean	DTE Electric Company	East China, MI	770 GWh	May 2002	Dec 2024	Natural Gas
Noble Ridge LLC	RENEW Energy Inc	Wilmont, MN	61 MWh	Nov 2001	Dec 2024	Wind
Otsego Mill Power Plant	Otsego Paper Inc	Otsego, MI	165 GWh	Oct 1995	Dec 2024	Natural Gas
Old Gold Energy Center, LLC	Old Gold Energy Center, LLC	Joice, IA	78 GWh	Sep 2001	Dec 2024	Wind
Kas Brothers Windfarm	Kas Brothers Windfarm LLC	Woodstock, MN	2 GWh	Nov 2001	Dec 2024	Wind
Hawkeye Power Partners LLC	Hawkeye Power Partners LLC	Garner, IA	176 GWh	Mar 1999	Dec 2024	Wind
Island Street Peaking Plant	WPPI Energy	Kaukauna, WI	11 GWh	May 2004	Dec 2024	Natural Gas
Oak Point Cogen	Chevron Oronite Co LLC	Belle Chasse, LA	99 GWh	Sep 1999	Dec 2024	Natural Gas
Stevens Point Mill	Pixelle Specialty Solution, LLC	Stevens Point, WI	13 GWh	Jan 2002	Dec 2024	Natural Gas
Ridgeview	WM Renewable Energy LLC	Whitelaw, WI	36 GWh	Aug 2002	Dec 2024	Landfill Gas
Alliant SBD0201 Ingredion	Industrial Energy Applications Inc	Cedar Rapids, IA	19 MWh	May 2003	Dec 2024	Distillate Fuel Oil
Minwind	Community Renewables, LLC	Luverne, MN	276 MWh	Sep 2002	Dec 2024	Wind
Casey City of	City of Casey - (IL)	Casey, IL	61 MWh	Apr 2002	Dec 2024	Distillate Fuel Oil
G McNeilus Wind Farm Dodge Center	Justin McNeilus	Dodge Center, MN	94 GWh	Aug 2002	Dec 2024	Wind
Berlin Landfill Gas	WM Renewable Energy LLC	Berlin, WI	14 GWh	Jul 2001	Dec 2024	Landfill Gas
Alliant SBG 9802 Toyota	Industrial Energy Applications Inc	Cedar Rapids, IA	10 MWh	Nov 1998	Dec 2024	Natural Gas
Hillsboro	City of Hillsboro - (ND)	Hillsboro, ND	12 MWh	Jun 2002	Dec 2024	Distillate Fuel Oil
FPL Energy North Dakota Wind I/II	FPL Energy North Dakota Wind LLC	Edgeley, ND	137 GWh	Sep 2003	Dec 2024	Wind
St. Charles Power Plant	City of St Charles - (MN)	St. Charles, MN	71 MWh	Nov 2004	Dec 2024	Distillate Fuel Oil
Mankato Energy Center	MEC Holdings, LLC	Mankato, MN	3 TWh	Jun 2006	Dec 2024	Natural Gas
T J Labbe Electric Generating	Lafayette Utilities System	Lafayette, LA	28 GWh	Jul 2005	Dec 2024	Natural Gas
IMEA Flora	Illinois Municipal Elec Agency	Flora, IL	48 MWh	Nov 2000	Dec 2024	Distillate Fuel Oil
Flora Site A	City of Flora - (IL)	Flora, IL	37 MWh	Nov 2001	Dec 2024	Distillate Fuel Oil
Flora Site B	City of Flora - (IL)	Flora, IL	32 MWh	Nov 2001	Dec 2024	Distillate Fuel Oil
Anderson Erickson	Anderson Erickson Dairy	Des Moines, IA	19 MWh	Mar 2000	Dec 2024	Distillate Fuel Oil
Neptune Gas Processing Plant	Enterprise Products Optg LP	Centerville, LA	12 GWh	Jan 2004	Dec 2024	Other Fuel
Faribault Energy Park	Minnesota Municipal Power Agny	Faribault, MN	1 TWh	Apr 2005	Dec 2024	Natural Gas
Sheboygan Falls	Wisconsin Power & Light Co	Sheboygan, WI	642 GWh	May 2005	Dec 2024	Natural Gas
Flying Cloud Power Partners LLC	Avangrid Power LLC	Lake Park, IA	81 GWh	Nov 2003	Dec 2024	Wind
Moraine Wind LLC	Avangrid Power LLC	Woodstock, MN	61 GWh	Nov 2003	Dec 2024	Wind
Dike City Power Plant	City of Dike	Dike, IA	50 MWh	May 2005	Dec 2024	Distillate Fuel Oil
TG Windfarm LLC	TG Windfarm LLC	Pipestone, MN	288 MWh	Oct 2003	Dec 2024	Wind
CG Windfarm LLC	CG Windfarm LLC	Woodstock, MN	144 MWh	Nov 2003	Dec 2024	Wind
Bisson Windfarm LLC	Bisson Windfarm LLC	Pipestone, MN	288 MWh	Sep 2003	Dec 2024	Wind
Tofteland Windfarm LLC	Tofteland Windfarm LLC	Pipestone, MN	288 MWh	Sep 2003	Dec 2024	Wind
Westridge Windfarm LLC	Westridge Windfarm LLC	Woodstock, MN	288 MWh	Oct 2003	Dec 2024	Wind
Fey Windfarm LLC	Fey Windfarm LLC	Woodstock, MN	5 GWh	Aug 2003	Dec 2024	Wind
Windcurrent Farms LLC	Windcurrent Farms LLC	Woodstock, MN	5 GWh	Aug 2003	Dec 2024	Wind
K-Brink Windfarm LLC	K-brink Windfarm, LLC	Woodstock, MN	3 GWh	Jan 2003	Dec 2024	Wind
DL Windy Acres LLC	Brewster	Brewster, MN	4 GWh	Nov 2003	Dec 2024	Wind
S&P Windfarm LLC	Brewster	Brewster, MN	4 GWh	Nov 2003	Dec 2024	Wind
Boeve Windfarm LLC	Boeve Windfarm LLC	Woodstock, MN	5 GWh	Jul 2003	Dec 2024	Wind
B&K Energy Systems LLC	Brewster	Brewster, MN	4 GWh	Nov 2003	Dec 2024	Wind
Shell Chemical	Shell Chemical LP - Geismar	Geismar, LA	572 GWh	Jul 2002	Dec 2024	Natural Gas
Intrepid	MidAmerican Energy Co	Schaller, IA	549 GWh	Nov 2004	Dec 2024	Wind
Century	MidAmerican Energy Co	Blairsburg, IA	572 GWh	Aug 2005	Dec 2024	Wind
IBM West	Rochester Public Utilities	Rochester, MN	25 MWh	Sep 2005	Dec 2024	Distillate Fuel Oil
Hargis-Hebert Electric Generating	Lafayette Utilities System	Lafayette, LA	53 GWh	May 2006	Dec 2024	Natural Gas
Trimont Area Wind Farm	Avangrid Power LLC	Trimont, MN	379 GWh	Oct 2005	Dec 2024	Wind

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	696.7 GWh	4
#27	Associated Electric Cooperative, Inc.	23.6 TWh	47
#13	Duke Energy Carolinas	112.5 TWh	565
#52	Duke Energy Progress West	4.3 TWh	10
#24	Louisville Gas and Electric Company and Kentucky Utilities Company	34.4 TWh	25
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#5	Southwest Power Pool	299.9 TWh	835
#49	Southwestern Power Administration	5.2 TWh	34
#9	Tennessee Valley Authority	161.6 TWh	204

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	870.7 TWh	2,465
#2	Midcontinent Independent System Operator, Inc.	655.1 TWh	2,831
#4	Electric Reliability Council of Texas, Inc.	485.0 TWh	1,313
#5	Southwest Power Pool	299.9 TWh	835
#6	Southern Company Services, Inc. - Trans	250.9 TWh	417
#7	California Independent System Operator	188.0 TWh	2,075
#9	Tennessee Valley Authority	161.6 TWh	204
#10	Florida Power & Light Co.	148.9 TWh	187
#12	New York Independent System Operator	131.6 TWh	1,211
#13	Duke Energy Carolinas	112.5 TWh	565