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	Jul 2026
Annual Generation	669.4 TWh
Power Plants	3,038
Utilities	1,345
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% Coal \| 26.5% Wind \| 14.9% Nuclear \| 13.9% Solar \| 5.7% Water \| 1.4% Other Fuel \| 0.6%

Map of Midcontinent Independent System Operator, Inc.

Register Now for Comprehensive Access

Subscribe now to access all power plant data, utility information, FERC EQR data, and more for Midcontinent Independent System Operator, Inc..

Create Your Account Today

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

Download Generation

Plant Name	Utility	Location	Annual Generation	Plant Date	Last Update	Fuel Types
Reynolds	City of Springfield - (IL)	Springfield, IL	179 MWh	Oct 1970	Dec 2025	Distillate Fuel Oil
Sibley One	City of Sibley - (IA)	Sibley, IA	174 MWh	Aug 1971	Dec 2025	Distillate Fuel Oil : 65.0% Natural Gas : 35.0%
Farmers Electric Cooperative - Kalona	Farmers Electric Coop - (IA)	Kalona, IA	174 MWh	Feb 2001	Dec 2025	Distillate Fuel Oil
Drummer Creek I Solar LLC	Dimension Energy LLC	Gibson City, IL	170 MWh	Nov 2025	Dec 2025	Solar
Marshall (IL)	City of Marshall - (IL)	Marshall, IL	167 MWh	Mar 2002	Dec 2025	Distillate Fuel Oil
L L Wilkins	Clarksdale Public Utilities	Clarksdale, MS	166 MWh	Sep 1961	Aug 2025	Natural Gas : 71.4% Distillate Fuel Oil : 28.6%
Grand Marais	City of Grand Marais - (MN)	Grand Marais, MN	164 MWh	Jan 2004	Dec 2025	Distillate Fuel Oil
La Porte	La Porte City Utilities	La Porte City, IA	162 MWh	Nov 2000	Dec 2025	Distillate Fuel Oil
State Center	City of State Center - (IA)	State Center, IA	153 MWh	Jul 1972	Dec 2025	Distillate Fuel Oil : 72.4% Natural Gas : 27.6%
Beloit Memorial Hospital Power Plant	Beloit Memorial Hospital	Beloit, WI	147 MWh	May 2000	Dec 2025	Natural Gas : 99.1% Distillate Fuel Oil : 0.9%
Colfax	DTE Electric Company	Fowlerville, MI	146 MWh	Oct 1969	Dec 2025	Distillate Fuel Oil
Glencoe	Glencoe Light & Power Comm	Glencoe, MN	146 MWh	May 1957	Dec 2025	Distillate Fuel Oil : 99.7%
Freeburg	Village of Freeburg - (IL)	Freeburg, IL	145 MWh	Jul 1948	Dec 2025	Distillate Fuel Oil
Hurricane Creek Lift Station	Johnson County Rural E M C	Greenwood, IN	143 MWh	Aug 2004	Dec 2024	Distillate Fuel Oil
Lanesboro	Lanesboro Public Utility Comm	Lanesboro, MN	140 MWh	Dec 1922	Dec 2025	Water : 88.6% Distillate Fuel Oil : 11.4%
Lake Preston	Otter Tail Power Co	Lake Preston, SD	135 MWh	May 1978	Dec 2025	Distillate Fuel Oil
Factory	City of Springfield - (IL)	Springfield, IL	132 MWh	Jul 1973	Dec 2025	Distillate Fuel Oil
Sleepy Eye	Sleepy Eye Public Utility Comm	Sleepy Eye, MN	131 MWh	Jun 1995	Dec 2024	Distillate Fuel Oil
Putnam (MI)	DTE Electric Company	Mayville, MI	129 MWh	May 1971	Dec 2025	Distillate Fuel Oil
Moose Lake	Moose Lake Water & Light Comm	Moose Lake, MN	128 MWh	Oct 1952	Dec 2025	Distillate Fuel Oil : 92.0% Natural Gas : 8.0%
St. Olaf StandBy Generators	St. Olaf College	Northfield, MN	116 MWh	May 1999	Dec 2025	Distillate Fuel Oil
Atlantic	Atlantic Municipal Utilities (IA)	Atlantic, IA	115 MWh	Aug 1966	Dec 2025	Natural Gas
Montezuma	City of Montezuma - (IA)	Montezuma, IA	115 MWh	Jul 1940	Dec 2025	Distillate Fuel Oil : 67.9% Natural Gas : 32.1%
Benson City of	City of Benson - (MN)	Benson, MN	114 MWh	Apr 2002	Dec 2025	Distillate Fuel Oil
Wyandotte	Wyandotte Municipal Serv Comm - (MI)	Wyandotte, MI	110 MWh	Dec 1947	May 2026	Distillate Fuel Oil
Grundy Center City Light Plant	Grundy Center Mun Light & Power	Grundy Center, IA	109 MWh	Oct 1963	Dec 2025	Distillate Fuel Oil
Princeton (MN)	Princeton Public Utils Comm	Princeton, MN	108 MWh	Aug 1953	Dec 2025	Distillate Fuel Oil
Rocky Mountain Elk Solar Community Solar	Rocky Mountain Elk Solar, LLC	Sheffield, IL	108 MWh	Nov 2025	Dec 2025	Solar
SV CSG Bishop 1 LLC	SunVest Solar LLC	Herrin, IL	106 MWh	Nov 2025	Dec 2025	Solar
Southwestern Bell Telephone	AT&T	St. Louis, MO	105 MWh	Jan 1992	Apr 2026	Distillate Fuel Oil
Chatham	City of Lowell - (MI)	Lowell, MI	103 MWh	Aug 2013	Dec 2025	Natural Gas
Lake Mills	City of Lake Mills - (IA)	Lake Mills, IA	99 MWh	Dec 1955	Dec 2025	Distillate Fuel Oil
Blue Earth	Blue Earth Light & Water	Blue Earth, MN	96 MWh	Oct 1960	Dec 2024	Distillate Fuel Oil
Medanos Solar LLC	Dimension Energy LLC	Homer, IL	96 MWh	Nov 2025	Dec 2025	Solar
Marshall (MN)	City of Marshall - (MN)	Marshall, MN	93 MWh	Jun 1969	Dec 2025	Distillate Fuel Oil
St James	City of St James - (MN)	St James, MN	93 MWh	Jun 2002	Dec 2025	Distillate Fuel Oil
Nine Springs	Madison Gas & Electric Co	Madison, WI	89 MWh	Nov 1964	Dec 2025	Natural Gas
Spencer Gas Turbine	City of Spencer - (IA)	Spencer, IA	86 MWh	Dec 1969	Dec 2025	Kerosene
Luck	OneEnergy, Inc.	Luck, WI	85 MWh	Nov 2025	Dec 2025	Solar
Casey City of	City of Casey - (IL)	Casey, IL	80 MWh	Apr 2002	Dec 2025	Distillate Fuel Oil
Bushnell	City of Bushnell - (IL)	Bushnell, IL	78 MWh	May 1940	Dec 2025	Distillate Fuel Oil
Preston (MN)	Preston Public Utilities Comm	Preston, MN	78 MWh	Dec 1948	Dec 2025	Distillate Fuel Oil : 71.9% Natural Gas : 28.1%
Anita	City of Anita - (IA)	Anita, IA	77 MWh	Sep 1939	Dec 2025	Distillate Fuel Oil
St. Charles Power Plant	City of St Charles - (MN)	St. Charles, MN	75 MWh	Nov 2004	Dec 2025	Distillate Fuel Oil
Fennimore	City of Fennimore - (WI)	Fennimore, WI	75 MWh	Jan 1952	Dec 2025	Distillate Fuel Oil
Altamont	City of Altamont - (IL)	Altamont, IL	75 MWh	Dec 2001	Dec 2025	Distillate Fuel Oil
Des Moines Wastewater Reclamation Fac	Des Moines Metro WRF	Des Moines, IA	74 MWh	Jun 1991	Dec 2025	Natural Gas
Ogden	City of Ogden - (IA)	Ogden, IA	73 MWh	Jun 1951	Dec 2025	Distillate Fuel Oil
Melrose	Melrose Public Utilities	Melrose, MN	71 MWh	Jun 1945	Dec 2025	Distillate Fuel Oil
South Plant (IA)	Waverly Municipal Elec Utility - (IA)	Waverly, IA	71 MWh	Apr 2000	Dec 2025	Distillate Fuel Oil
IMEA Flora	Illinois Municipal Elec Agency (IL)	Flora, IL	71 MWh	Nov 2000	Dec 2025	Distillate Fuel Oil
Alliant SBD 9301 Prairie Farms	Industrial Energy Applications Inc	Dubuque, IA	69 MWh	Jun 1993	Dec 2025	Distillate Fuel Oil
West Bend	City of West Bend - (IA)	West Bent, IA	68 MWh	Nov 1954	Dec 2025	Distillate Fuel Oil
Traer Main	City of Traer - (IA)	Traer, IA	65 MWh	Dec 1962	Dec 2025	Distillate Fuel Oil : 98.5% Natural Gas : 1.5%
Little Cedar	OneEnergy, Inc.	Little Cedar, IA	65 MWh	Nov 2025	Dec 2025	Solar
Viola	OneEnergy, Inc.	Webster, WI	65 MWh	Nov 2025	Dec 2025	Solar
Pearl Station	Prairie Power, Inc	Pearl, IL	64 MWh	May 1973	Dec 2025	Distillate Fuel Oil
4710 Hosting	Epic Hosting, LLC	Rochester, MN	63 MWh	May 2012	Dec 2025	Distillate Fuel Oil
Alliant SBD 9107 JBS USA	Industrial Energy Applications Inc	Marshalltown, IA	62 MWh	Jul 1992	May 2026	Distillate Fuel Oil
Tower	Wolverine Power Supply Coop	Tower, MI	61 MWh	Feb 1971	Dec 2025	Distillate Fuel Oil
Noble Ridge LLC	RENEW Energy Inc	Wilmont, MN	61 MWh	Nov 2001	Dec 2024	Wind
Novel Stumpf 1 Solar CSG	Novel Stumpf 1 Solar LLC	Red Wing, MN	60 MWh	Nov 2025	Dec 2025	Solar
Farmer City	City of Farmer City - (IL)	Farmer City, IL	59 MWh	Mar 1951	Dec 2025	Distillate Fuel Oil
Alliant SBD 9203 Profol	American Profol Incorporated	Cedar Rapids, IA	56 MWh	Aug 1996	Nov 2025	Distillate Fuel Oil
Lenox	City of Lenox - (IA)	Lenox, IA	55 MWh	Aug 1948	Dec 2025	Distillate Fuel Oil
Sumner	City of Sumner - (IA)	Sumner, IA	55 MWh	Jul 1956	Dec 2025	Distillate Fuel Oil
New Lisbon	City of New Lisbon (WI)	New Lisbon, WI	55 MWh	Dec 1965	Dec 2025	Distillate Fuel Oil
Hopkinton	City of Hopkinton - (IA)	Hopkinton, IA	54 MWh	Aug 1973	Dec 2025	Distillate Fuel Oil
Novel Brock Solar LLC CSG	Novel Brock Solar HQ LLC	Clarkfield, MN	54 MWh	Nov 2025	Dec 2025	Solar
City of Peru Rail Generating Station	City of Peru - (IL)	Peru, IL	53 MWh	Aug 2011	Dec 2025	Distillate Fuel Oil
Delano	Delano Municipal Utilities (MN)	Delano, MN	53 MWh	Sep 1946	Dec 2025	Distillate Fuel Oil
Alexandria	City of Alexandria - (MN)	Alexandria, MN	51 MWh	Dec 1947	Dec 2025	Distillate Fuel Oil
MNDOT Standby Generation	State of Minnesota Department of Administration	St. Paul, MN	51 MWh	Jun 1995	May 2026	Distillate Fuel Oil
Beaver Island	Great Lakes Energy Coop	Beaver Island, MI	50 MWh	Aug 2000	Dec 2025	Distillate Fuel Oil
Graettinger	City of Graettinger - (IA)	Graettinger, IA	49 MWh	Jul 1957	Dec 2025	Distillate Fuel Oil
Hobart Solar, LLC	AES Distributed Energy	Hobart, IN	49 MWh	Oct 2012	Dec 2025	Solar
Elroy	City of Elroy - (WI)	Elroy, WI	48 MWh	Apr 1973	Dec 2025	Distillate Fuel Oil
Flora Site A	City of Flora - (IL)	Flora, IL	47 MWh	Nov 2001	Dec 2025	Distillate Fuel Oil
Alliant SBD 9201 Norplex	Industrial Energy Applications Inc	Postville, IA	45 MWh	Nov 1988	May 2026	Distillate Fuel Oil
Lamoni Municipal Utilities	City of Lamoni - (IA)	Lamoni, IA	45 MWh	Feb 1940	Dec 2025	Distillate Fuel Oil
John Deere Dubuque Works	John Deere Dubuque Works	Dubuque, IA	45 MWh	May 1994	May 2026	Distillate Fuel Oil
Flora Site B	City of Flora - (IL)	Flora, IL	43 MWh	Nov 2001	Dec 2025	Distillate Fuel Oil
McLeansboro	City of McLeansboro - (IL)	McLeansboro, IL	42 MWh	Nov 1950	Dec 2025	Distillate Fuel Oil
Grand Junction	City of Grand Junction - (IA)	Grand Junction, IA	41 MWh	Nov 1994	Dec 2025	Distillate Fuel Oil
Detroit Lakes	City of Detroit Lakes - (MN)	Detroit Lakes, MN	41 MWh	Jun 1968	Dec 2025	Distillate Fuel Oil
Alliant SBD0201 Ingredion	Industrial Energy Applications Inc	Cedar Rapids, IA	38 MWh	May 2003	Dec 2025	Distillate Fuel Oil
Coggon	Coggon Municipal Light Plant - (IA)	Coggon, IA	38 MWh	Sep 1957	Dec 2025	Distillate Fuel Oil
Sibley No Two	City of Sibley - (IA)	Sibley, IA	37 MWh	Nov 1987	Dec 2025	Natural Gas : 90.9% Distillate Fuel Oil : 9.1%
Buckheart Creek Solar I Community Solar	Buckheart Creek Solar 1, LLC	Canton, IL	37 MWh	Nov 2025	Dec 2025	Solar
MSC Croswell	Michigan Sugar Company	Croswell, MI	36 MWh	Sep 1948	Jan 2025	Natural Gas
Janesville	City of Janesville - (MN)	Janesville, MN	35 MWh	Apr 1955	Dec 2025	Distillate Fuel Oil : 97.5% Natural Gas : 2.5%
Enterprise MN - Ferche CSG	Standard Solar	Paynesville, MN	35 MWh	Nov 2025	Dec 2025	Solar
Halstad	City of Halstad - (MN)	Halstad, MN	34 MWh	Aug 2007	Dec 2025	Distillate Fuel Oil
West Group Data Center	CADC MSP01, LLC	Eagan, MN	34 MWh	Apr 2005	May 2026	Distillate Fuel Oil
Thomson Reuters Campus Bldg A-D	Thomson Corp	Eagan, MN	34 MWh	Mar 1999	May 2026	Distillate Fuel Oil
Winterset	City of Winterset - (IA)	Winterset, IA	33 MWh	Jun 1956	Dec 2025	Distillate Fuel Oil : 57.8% Natural Gas : 42.2%
City of Peru Water Street Generating Sta	City of Peru - (IL)	Peru, IL	33 MWh	Sep 1968	Dec 2025	Jet Fuel
Windom	City of Windom (MN)	Windom, MN	32 MWh	May 1980	Dec 2025	Distillate Fuel Oil
Willmar Municipal East Substation	Willmar Municipal Utilities (MN)	Willmar, MN	32 MWh	May 2000	Dec 2025	Distillate Fuel Oil
Cascade	Cascade Municipal Utilities - (IA)	Cascade, IA	31 MWh	Mar 1951	Dec 2025	Distillate Fuel Oil

Surrounding Balancing Authorities

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#61	Alcoa Power Generating, Inc. - Yadkin Division	442.5 GWh	4
#26	Associated Electric Cooperative, Inc.	23.4 TWh	47
#13	Duke Energy Carolinas	112.6 TWh	577
#50	Duke Energy Progress West	4.5 TWh	15
#23	Louisville Gas and Electric Company and Kentucky Utilities Company	33.9 TWh	25
#1	PJM Interconnection, LLC	882.8 TWh	2,652
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#5	Southwest Power Pool	306.8 TWh	856
#53	Southwestern Power Administration	4.1 TWh	34
#9	Tennessee Valley Authority	163.4 TWh	207

Balancing Authorities with Similar Net Generation

Rank	Balancing Authority	Annual Net Generation	# Power Plants
#1	PJM Interconnection, LLC	882.8 TWh	2,652
#2	Midcontinent Independent System Operator, Inc.	669.4 TWh	3,038
#3	Electric Reliability Council of Texas, Inc.	494.1 TWh	1,471
#5	Southwest Power Pool	306.8 TWh	856
#6	Southern Company Services, Inc. - Trans	253.5 TWh	422
#7	California Independent System Operator	169.4 TWh	2,135
#9	Tennessee Valley Authority	163.4 TWh	207
#10	Florida Power & Light Co.	152.2 TWh	187
#12	New York Independent System Operator	134.3 TWh	1,299
#13	Duke Energy Carolinas	112.6 TWh	577