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
George Neal North	MidAmerican Energy Co	Sergeant Bluff, IA	2 TWh	Apr 1964	Feb 2026	Subbituminous Coal : 98.9% Natural Gas : 1.1%
Merl Parr	MidAmerican Energy Co	Charles City, IA	432 MWh	Apr 1969	Dec 2024	Natural Gas
Adair Wind Farm	MidAmerican Energy Co	Adair, IA	555 GWh	Nov 2008	Dec 2024	Wind
Century	MidAmerican Energy Co	Blairsburg, IA	572 GWh	Aug 2005	Dec 2024	Wind
Victory Wind Farm	MidAmerican Energy Co	Westside, IA	378 GWh	Nov 2006	Dec 2024	Wind
Intrepid	MidAmerican Energy Co	Schaller, IA	549 GWh	Nov 2004	Dec 2024	Wind
Pleasant Hill	MidAmerican Energy Co	Pleasant Hill, IA	22 GWh	May 1990	Dec 2024	Natural Gas : 99.9%
Neal Energy Center Solar	MidAmerican Energy Co	Salix, IA	7 GWh	Jan 2022	Dec 2024	Solar
Waterloo Solar (IA)	MidAmerican Energy Co	Waterloo, IA	6 GWh	Feb 2022	Dec 2024	Solar
Arbor Hill Solar	MidAmerican Energy Co	Greenfield, IA	46 GWh	Dec 2021	Feb 2026	Solar
Johnson County Hills Solar	MidAmerican Energy Co	Iowa City, IA	6 GWh	Dec 2021	Dec 2024	Solar
Franklin County Solar	MidAmerican Energy Co	Hampton, IA	12 GWh	Dec 2021	Dec 2024	Solar
Holliday Creek Solar	MidAmerican Energy Co	Fort Dodge, IA	208 GWh	Jun 2022	Feb 2026	Solar
Chickasaw Wind Farm	MidAmerican Energy Co	New Hampton, IA	624 GWh	Nov 2023	Feb 2026	Wind
Shenandoah Hills Wind Farm	MidAmerican Energy Co	Blanchard, IA	117 GWh	-	Feb 2026	Wind
Plymouth Wind	MidAmerican Energy Co	Remsen, IA	778 GWh	Dec 2021	Feb 2026	Wind
Rolling Hills Wind Farm	MidAmerican Energy Co	Massena, IA	2 TWh	Nov 2011	Feb 2026	Wind
Macksburg Wind Project	MidAmerican Energy Co	Macksburg, IA	330 GWh	Nov 2014	Dec 2024	Wind
Morning Light Wind Farm	MidAmerican Energy Co	Adair, IA	413 GWh	Sep 2012	Dec 2024	Wind
Vienna Wind Farm	MidAmerican Energy Co	Marshalltown, IA	398 GWh	Oct 2012	Dec 2024	Wind
Eclipse Wind Farm	MidAmerican Energy Co	Adair, IA	808 GWh	Aug 2012	Feb 2026	Wind
Pocahontas Prairie Wind Farm	MidAmerican Energy Co	Pomeroy, IA	382 GWh	Jan 2012	Dec 2024	Wind
Adams Wind	MidAmerican Energy Co	Lenox, IA	474 GWh	Sep 2015	Dec 2024	Wind
Arbor Hill Wind Farm	MidAmerican Energy Co	Greenfield, IA	1 TWh	Nov 2018	Feb 2026	Wind
North English	MidAmerican Energy Co	Montezuma, IA	1 TWh	Nov 2018	Feb 2026	Wind
Lundgren Wind Project	MidAmerican Energy Co	Otho, IA	804 GWh	Jul 2014	Dec 2024	Wind
Highland Wind Project (IA)	MidAmerican Energy Co	Primghar, IA	1 TWh	May 2015	Feb 2026	Wind
Ida Grove II	MidAmerican Energy Co	Ida Grove, IA	699 GWh	Nov 2019	Feb 2026	Wind
Prairie Wind Farm	MidAmerican Energy Co	Montezuma, IA	590 GWh	Dec 2017	Feb 2026	Wind
Laurel Wind Farm	MidAmerican Energy Co	Laurel, IA	463 GWh	Nov 2011	Dec 2024	Wind
Wellsburg Wind Project	MidAmerican Energy Co	Wellsburg, IA	469 GWh	Nov 2014	Dec 2024	Wind
Palo Alto Wind Farm	MidAmerican Energy Co	Emmetsburg, IA	1 TWh	Dec 2019	Feb 2026	Wind
Orient Wind Farm	MidAmerican Energy Co	Orient, IA	2 TWh	Nov 2018	Feb 2026	Wind
Beaver Creek Wind	MidAmerican Energy Co	Ogden, IA	1 TWh	Nov 2017	Feb 2026	Wind
O'Brien Wind	MidAmerican Energy Co	Primghar, IA	876 GWh	Aug 2016	Dec 2024	Wind
Diamond Trail Wind Farm	MidAmerican Energy Co	Ladora, IA	851 GWh	Nov 2020	Feb 2026	Wind
Ivester Wind Farm	MidAmerican Energy Co	Wellsburg, IA	320 GWh	Nov 2018	Feb 2026	Wind
Ida Grove Wind	MidAmerican Energy Co	Ida Grove, IA	1 TWh	Aug 2016	Dec 2024	Wind
Southern Hills Wind Farm	MidAmerican Energy Co	Creston, IA	793 GWh	Feb 2021	Feb 2026	Wind
Contrail Wind Farm	MidAmerican Energy Co	Bedford, IA	327 GWh	Nov 2020	Feb 2026	Wind
Midcontinent Solar, LLC	Midcontinent Solar, LLC	Owosso, MI	37 GWh	Sep 2023	Dec 2024	Solar
Middleton Biogas Solar, LLC	Middleton Biogas Solar, LLC	Middleton, WI	2 GWh	Apr 2022	Dec 2024	Solar
Midland Cogeneration Venture	Midland Cogeneration Venture	Midland, MI	10 TWh	May 1989	Feb 2026	Natural Gas
Green Acres Breeze LLC	Midwest Power Partners LLC	Rushmore, MN	2 GWh	Apr 2006	Dec 2024	Wind
G Flow Wind LLC	Midwest Power Partners LLC	Rushmore, MN	2 GWh	Apr 2006	Dec 2024	Wind
Windom Wind Project	Midwest Power Partners LLC	Bingham Lake, MN	33 GWh	Feb 2006	Dec 2024	Wind
Minnesota Breeze LLC	Midwest Power Partners LLC	Rushmore, MN	2 GWh	Apr 2006	Dec 2024	Wind
Wolf Wind Enterprises LLC	Midwest Power Partners LLC	Rushmore, MN	2 GWh	Apr 2006	Dec 2024	Wind
Sunset Breeze LLC	Midwest Power Partners LLC	Rushmore, MN	2 GWh	Apr 2006	Dec 2024	Wind
Blue Breezes II LLC	Midwest Power Partners LLC	Blue Earth, MN	2 GWh	Apr 2006	Dec 2024	Wind
Blue Breezes LLC	Midwest Power Partners LLC	Blue Earth, MN	2 GWh	Apr 2006	Dec 2024	Wind
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%
MMSD Jones Island Wastewater	Milwaukee Metro Sewerage Dist	Milwaukee, WI	82 GWh	Dec 1970	Feb 2026	Natural Gas : 80.4% Landfill Gas : 18.6% Distillate Fuel Oil : 1.1%
Faribault Energy Park	Minnesota Municipal Power Agny	Faribault, MN	1 TWh	Apr 2005	Dec 2024	Natural Gas
Minnesota River	Minnesota Municipal Power Agny	Chaska, MN	6 GWh	Apr 2001	Dec 2024	Natural Gas
Shakopee Energy Park	Minnesota Municipal Power Agny	Shakopee, MN	24 GWh	Jan 2017	Dec 2024	Natural Gas
Oak Glen Wind Farm	Minnesota Municipal Power Agny	Blooming Prairie, MN	121 GWh	Oct 2011	Dec 2024	Wind
Wright Cuddyer CSG	Minnesota Solar CSG 1, LLC	St. Michael, MN	5 GWh	Sep 2018	Dec 2024	Solar
B.R. Corcoran CSG	Minnesota Solar CSG 19, LLC	Corcoran, MN	8 GWh	Oct 2017	Dec 2024	Solar
B.R. Sartell CSG	Minnesota Solar CSG 21, LLC	Sartell, MN	4 GWh	Oct 2017	Dec 2024	Solar
Montgomery Winsted CSG	Minnesota Solar CSG 4, LLC	Winsted, MN	5 GWh	Oct 2017	Dec 2024	Solar
Carver Gladden CSG	Minnesota Solar CSG 8, LLC	Norwood Young America, MN	5 GWh	Mar 2018	Dec 2024	Solar
B.R. Sauk Rapids CSG	Minnesota Solar CSG 9, LLC	Sauk Rapids, MN	8 GWh	Oct 2017	Dec 2024	Solar
Milton R Young	Minnkota Power Coop, Inc	Center, ND	4 TWh	Sep 1970	Feb 2026	Lignite Coal : 99.8%
Bennington Wind	Minonk Stewardship Wind LLC	Minonk, IL	300 GWh	Sep 2021	Feb 2026	Wind
Woodbury Solar	MN CSG 2, LLC	Woodbury, MN	4 GWh	Jun 2020	Dec 2024	Solar
MN CSG 2019-16 LLC	MN CSG 2019-16 LLC	Mankato, MN	2 GWh	May 2022	Dec 2024	Solar
MN CSG 2019-38 DE LLC	MN CSG 2019-38 DE LLC	Cleveland, MN	2 GWh	Oct 2022	Dec 2024	Solar
Sherburne North Project CSG	MN Solar Community, LLC	St. Cloud, MN	9 GWh	Jun 2018	Dec 2024	Solar
Equuleus Community Solar Gardens	MN8 Energy LLC	Rosemount, MN	9 GWh	Jul 2017	Dec 2024	Solar
Prairie Solar LLC	MN8 Energy LLC	Sidney, IL	25 GWh	-	Feb 2026	Solar
Thunder Spirit Wind, LLC	Montana-Dakota Utilities Co	Hettinger, ND	523 GWh	Nov 2015	Dec 2024	Wind
Miles City GT	Montana-Dakota Utilities Co	Miles City, MT	331 MWh	Apr 1972	Dec 2024	Natural Gas : 97.0% Distillate Fuel Oil : 3.0%
Glendive GT	Montana-Dakota Utilities Co	Glendive, MT	3 GWh	May 1979	Dec 2024	Natural Gas : 89.5% Distillate Fuel Oil : 10.5%
Cedar Hills Wind Farm	Montana-Dakota Utilities Co	Rhame, ND	56 GWh	May 2010	Dec 2024	Wind
Diamond Willow Wind Facility	Montana-Dakota Utilities Co	Baker, MT	86 GWh	Nov 2007	Dec 2024	Wind
R M Heskett	Montana-Dakota Utilities Co	Mandan, ND	55 GWh	Oct 1954	Feb 2026	Natural Gas
Lewis & Clark	Montana-Dakota Utilities Co	Richland, MT	12 GWh	Sep 1958	Feb 2026	Natural Gas
Glen Ullin Station 6	Montana-Dakota Utilities Co	Glen Ullin, ND	38 GWh	Jun 2009	Dec 2024	Waste Heat
Montevideo Solar LLC, CSG	Montevideo Solar LLC	Montevideo, MN	10 GWh	Dec 2018	Dec 2024	Solar
Moose Lake	Moose Lake Water & Light Comm	Moose Lake, MN	63 MWh	Oct 1952	Dec 2024	Distillate Fuel Oil : 83.7% Natural Gas : 16.3%
Moraine Sands Wind Power	Moraine Sands Wind Power, LLC	Mason City, IL	553 GWh	Nov 2023	Feb 2026	Wind
Moraine CSG	Moraine Solar, LLC	Downs, IL	5 GWh	Aug 2021	Dec 2024	Solar
Morgan Community Solar	Morgan Community Solar	Morgan, MN	5 GWh	Mar 2017	Dec 2024	Solar
Morgan Solar 1 CSG	Morgan Solar 1 LLC	Meredosia, IL	4 GWh	Jul 2021	Dec 2024	Solar
Morgan Solar 1b CSG	Morgan Solar 1b LLC	Meredosia, IL	3 GWh	Jul 2021	Dec 2024	Solar
Morgan Solar 2, LLC CSG	Morgan Solar 2, LLC	Murrayville, IL	4 GWh	Oct 2020	Dec 2024	Solar
Morgan Solar 4, LLC CSG	Morgan Solar 4, LLC	Murrayville, IL	4 GWh	Nov 2020	Dec 2024	Solar
Mosaic Phosphates Uncle Sam	Mosaic Phosphates Co.	Uncle Sam, LA	89 GWh	Dec 1967	Feb 2026	Waste Heat
Motiva Enterprises Port Arthur Refinery	Motiva Enterprises LLC	Port Arthur, TX	2 TWh	May 1957	Feb 2026	Natural Gas : 90.9% Other Gas : 9.1%
MSC-Chisago01 LLC CSG	MSC-Chisago01 LLC	Taylors Falls, MN	2 GWh	Jun 2019	Dec 2024	Solar
MSC-Chisago02 LLC	MSC-Chisago02 LLC	Taylors Falls, MN	1 GWh	Jul 2019	Dec 2024	Solar
MSC-Empire01, LLC	MSC-Empire01, LLC	Farmington, MN	2 GWh	Jul 2019	Dec 2024	Solar
MSC-GreyCloud01 Community Solar	MSC-GreyCloud01 LLC	St. Paul Park, MN	2 GWh	Feb 2019	Dec 2024	Solar
MSC-Rice01 LLC CSG	MSC-Rice01 LLC	Morristown, MN	2 GWh	Jun 2019	Dec 2024	Solar
MSC-Scandia01 CSG	MSC-Scandia01 LLC	Scandia, MN	2 GWh	Mar 2019	Dec 2024	Solar
MSC-Scott01 LLC	MSC-Scott01 LLC	Jordan, MN	2 GWh	Jul 2019	Dec 2024	Solar
Mud Garden Solar	Mud Garden LLC	Gaylord, MN	2 GWh	Feb 2020	Dec 2024	Solar
Mulligan Solar, LLC	Mulligan Solar	Broadwell, IL	155 GWh	Jun 2022	Feb 2026	Solar
Fayetteville Public Schools (SWEPCO)	Nabholz Solar FPS, LLC	Booneville, AR	9 GWh	Jul 2023	Dec 2024	Solar

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