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
Sidney A Murray Jr Hydroelectric	First National Bank-Commerce	Vidalia, LA	989 GWh	Apr 1990	Dec 2025	Water
Sibley One	City of Sibley - (IA)	Sibley, IA	174 MWh	Aug 1971	Dec 2025	Distillate Fuel Oil : 65.0% Natural Gas : 35.0%
Sibley No Two	City of Sibley - (IA)	Sibley, IA	37 MWh	Nov 1987	Dec 2025	Natural Gas : 90.9% Distillate Fuel Oil : 9.1%
Shirley Wind	Deriva Energy	Denmark, WI	57 GWh	Oct 2010	Dec 2025	Wind
Shipsterns Solar, LLC	Shipsterns Solar, LLC	Albion, MI	41 GWh	Sep 2023	Dec 2025	Solar
Sheridan School Corporation Solar	Johnson Melloh Solutions	Sheridan, IN	2 GWh	May 2016	Dec 2025	Solar
Sherco Solar III	Northern States Power Co - Minnesota	Clear Lake, MN	74 GWh	-	Jul 2026	Solar
Sherco Solar II	Northern States Power Co - Minnesota	Becker, MN	378 GWh	Aug 2025	Jul 2026	Solar
Sherco Solar I	Northern States Power Co - Minnesota	Clear Lake, MN	440 GWh	Sep 2024	Jul 2026	Solar
Sherburne Solar Holdings, LLC	REA Investments, LLC	Princeton, MN	4 GWh	Feb 2021	Dec 2025	Solar
Sherburne North Project CSG	Madison Energy Investments LLC	St. Cloud, MN	8 GWh	Jun 2018	Sep 2025	Solar
Sherburne County	Northern States Power Co - Minnesota	Becker, MN	6 TWh	Mar 1976	Jul 2026	Subbituminous Coal : 99.8%
Sherburne Community Solar One LLC CSG	Madison Energy Holdings LLC	Saint Cloud, MN	2 GWh	Nov 2019	Dec 2025	Solar
Sherburne Community Solar	Onsite Partners, LLC	Clear Lake, MN	8 GWh	Feb 2018	Jul 2026	Solar
Shenandoah Hills Wind Farm	MidAmerican Energy Co	Blanchard, IA	405 GWh	Nov 2025	Jul 2026	Wind
Shenandoah	MidAmerican Energy Co	Shenandoah, IA	323 MWh	Mar 2000	Dec 2025	Distillate Fuel Oil
Shell Chemical	Shell Chemical LP - Geismar	Geismar, LA	585 GWh	Jul 2002	Dec 2025	Natural Gas
Shelby Energy County	Shelby County Energy Center, LLC	Neoga, IL	184 GWh	May 2000	Dec 2025	Natural Gas
Sheboygan Falls	Wisconsin Power & Light Co	Sheboygan, WI	452 GWh	May 2005	Dec 2025	Natural Gas
Shaokatan Hills LLC	Shaokatan Hills, LLC (Longroad)	Hendricks, MN	11 GWh	Jul 1999	Dec 2025	Wind
Shane's Wind Machine	Shane's Wind Machine LLC	Ruthton, MN	7 GWh	Jun 2006	Jan 2025	Wind
Shamrock Solar LLC	Altus Power America Management, LLC	Black River Falls, WI	6 GWh	Nov 2021	Dec 2025	Solar
Shakopee Met Council WTP	Oak Leaf Solar V LLC	Shakopee, MN	2 GWh	Feb 2016	Dec 2025	Solar
Shakopee Energy Park	Minnesota Municipal Power Agny	Shakopee, MN	57 GWh	Jan 2017	Dec 2025	Natural Gas
Severson Garden	Severson HoldCo LLC	Waseca, MN	2 GWh	Sep 2020	Dec 2025	Solar
Settlers Trail Wind Farm LLC	RWE Clean Energy	Sheldon, IL	320 GWh	Sep 2011	Dec 2025	Wind
Security	TX LFG Energy, LP	Cleveland, TX	6 GWh	Feb 2003	Dec 2024	Landfill Gas
Sebree Solar I	Sebree Solar, LLC	Robards, KY	449 GWh	Aug 2025	Jul 2026	Solar
Searcy Water II	Entegrity Solar SWU 2, LLC	Searcy, AR	6 GWh	May 2021	Dec 2025	Solar
Searcy Water I	Entegrity Solar SWU, LLC	Searcy, AR	2 GWh	May 2021	Dec 2025	Solar
Searcy Solar Hybrid	Searcy Solar, LLC	Searcy, AR	173 GWh	Dec 2021	Jul 2026	Solar
SCS West Fairchild 011958 Danville, LLC	Arevon Energy, Inc.	Danville, IL	3 GWh	Jun 2021	Dec 2025	Solar
SCS Galena 012589 Peoria, LLC	Arevon Energy, Inc.	Peoria, IL	4 GWh	Nov 2021	Dec 2025	Solar
SCS COUNTY 012631 Champaign, LLC	Arevon Energy, Inc.	Champaign, IL	4 GWh	Aug 2021	Dec 2025	Solar
SCS American Bottoms 009885 Sauget, LLC	Arevon Energy, Inc.	Sauget, IL	2 GWh	Jul 2020	Dec 2025	Solar
Scottsburg Solar Park	Indiana Municipal Power Agency	Scottsburg, IN	11 GWh	Sep 2020	Dec 2025	Solar
Scotland Solar RES	Hoosier Energy R E C, Inc	Newberry, IN	1 GWh	Oct 2015	Dec 2025	Solar
Schwinghamer Project CSG	Schwinghamer Community Solar LLC	Albany, MN	2 GWh	Nov 2019	Dec 2025	Solar
Schultz CSG	Madison Energy Investments LLC	Webster, MN	3 GWh	Oct 2018	Sep 2025	Solar
Schulte 2 Community Solar	Schulte 2 Community Solar	Lacon, IL	4 GWh	Nov 2020	Dec 2025	Solar
Schull CSG	Schull CSG LLC	Mapleton, MN	2 GWh	Oct 2021	Dec 2025	Solar
Schueler Community Solar	Schueler Community Solar LLC	Annandale, MN	2 GWh	Jul 2020	Dec 2025	Solar
School Sisters CSG	School Sisters CSG LLC	Mankato, MN	2 GWh	Apr 2018	Dec 2025	Solar
Schmidt CSG 1	SunVest Solar LLC	Belleville, IL	4 GWh	Nov 2024	Dec 2025	Solar
Scanlon	ALLETE, Inc.	Scanlon, MN	7 GWh	Dec 1922	Dec 2025	Water
Scandia CSG	Madison Energy Investments LLC	Scandia, MN	9 GWh	Dec 2017	Sep 2025	Solar
Scandia Community Solar Garden	Scandia CSG LLC	Scandia, MN	4 GWh	Jun 2018	Dec 2025	Solar
Saxon Falls	Northern States Power Co - Minnesota	Saxon, WI	9 GWh	Dec 1912	Dec 2025	Water
Sauk Solar Park	DTE Electric Company	Union City, MI	229 GWh	Dec 2024	Jul 2026	Solar
Sauk DPC Solar	SoCore Energy LLC	Wonewoc, WI	2 GWh	Dec 2016	Dec 2025	Solar
SAU Tech	Today's Power, Inc.	Bearden, AR	2 GWh	Jun 2019	Dec 2025	Solar
Sartell Holdco CSG	Sartell Holdco LLC	Sartell, MN	8 GWh	Apr 2019	Dec 2025	Solar
Sartell Dam	Eagle Creek Renewable Energy, LLC	Sartell, MN	30 GWh	Feb 1985	Dec 2025	Water
Saratoga Wind Farm	Madison Gas & Electric Co	Lime Springs, IA	255 GWh	Jan 2019	Jul 2026	Wind
Sappi Cloquet Mill	Sappi Cloquet LLC	Cloquet, MN	460 GWh	Dec 1928	Jul 2026	Black Liquor : 62.4% Wood/Wood Waste Solids : 17.5% Natural Gas : 16.2% Water : 3.0% Distillate Fuel Oil : 0.5%
Sapphire Sky Wind Energy LLC	Invenergy Services LLC	Farmer City, IL	967 GWh	Nov 2021	Jul 2026	Wind
Sandstone Rapids	Wisconsin Public Service Corp	Town of Stephenson, WI	10 GWh	Dec 1924	Dec 2025	Water
Sandoval	Sandoval Holdco, LLC	Centralia, IL	4 GWh	Feb 2021	Dec 2025	Solar
Sand Lake DPC Solar	SoCore Energy LLC	Centuria, WI	2 GWh	Oct 2017	Dec 2025	Solar
San Jacinto County Peaking Facility	East Texas Electric Coop, Inc	Shepherd, TX	287 GWh	Jun 2001	Dec 2025	Natural Gas
Sam Rayburn Dam	USACE-Fort Worth District	Jasper, TX	208 GWh	Aug 1965	Dec 2025	Water
Salt Creek Wind	Salt Creek Wind, LLC	Traer, IA	425 GWh	Nov 2025	Jul 2026	Wind
Salt Creek Township Solar, LLC	Birch Creek Power, LLC	Mason City, IL	117 GWh	Dec 2024	Jul 2026	Solar
Saint Marys Hospital Power Plant	St Mary's Hospital	Rochester, MN	56 GWh	Dec 1970	Jul 2026	Natural Gas : 99.0% Distillate Fuel Oil : 1.0%
Saint Marys Falls	USACE-Detroit District	Sault Ste. Marie, MI	156 GWh	Jun 1932	Dec 2025	Water
Sagitta Community Solar	Geronimo Power	Clara City, MN	2 GWh	Nov 2018	Dec 2025	Solar
Sagamore Plant Cogeneration	Tate & Lyle Ingredients Americas Inc	Lafayette, IN	23 GWh	Sep 1984	Jul 2026	Natural Gas
SAF Hydroelectric LLC	SAF Hydroelectric LLC	Minneapolis, MN	30 GWh	Nov 2011	Dec 2025	Water
SAE Taylorville IL S1	SolAmerica Energy, LLC	Taylorville, IL	2 GWh	Apr 2025	Dec 2025	Solar
SAE Paris IL S1	SolAmerica Energy, LLC	Paris, IL	2 GWh	May 2025	Dec 2025	Solar
SAE Ottawa IL	SolAmerica Energy, LLC	Ottawa, IL	225 MWh	Aug 2025	Dec 2025	Solar
Sacred Heart CSG1, LLC	Nautilus Solar Solutions	Sacred Heart, MN	2 GWh	Jul 2021	Dec 2025	Solar
Sac County Wind, LLC	Sac County Wind	Sac City, IA	323 GWh	Nov 2021	Jul 2026	Wind
Sabine River Operations	The Dow Chemical Company	Orange, TX	2 TWh	Dec 1947	Jul 2026	Natural Gas : 99.7%
Sabine	Entergy Texas Inc.	Orange, TX	3 TWh	Dec 1961	Jul 2026	Natural Gas
SABIC Innovative Plastics Mt. Vernon	SABIC IP Mt. Vernon, LLC	Mount Vernon, IN	584 GWh	May 1996	Jul 2026	Natural Gas
S&P Windfarm LLC	Brewster	Brewster, MN	5 GWh	Nov 2003	Dec 2025	Wind
Ruthton Ridge LLC	CHI Operations Inc	Lake Benton, MN	5 GWh	Dec 2000	Dec 2024	Wind
Rushford Village	Altus Power America Management, LLC	Rushford Village, MN	2 GWh	Oct 2021	Dec 2025	Solar
Rugby Wind Power Project	Avangrid Power LLC	Barton, ND	348 GWh	Nov 2009	Dec 2025	Wind
RS Cogen	Westlake 2 US LLC	Lake Charles, LA	3 TWh	Nov 2002	Jul 2026	Natural Gas
Round Grove 2	SoCore Energy LLC	Lyndon, IL	5 GWh	Oct 2021	Dec 2025	Solar
Round Grove 1	SoCore Energy LLC	Lyndon, IL	4 GWh	Oct 2021	Dec 2025	Solar
Rothschild Biomass Cogen Facility	Wisconsin Electric Power Co	Rothschild, WI	166 GWh	Oct 2013	Dec 2025	Wood/Wood Waste Solids : 94.7% Natural Gas : 5.3%
Rosewater Wind Farm	Rosewater Wind Farm LLC	Chalmers, IN	321 GWh	Nov 2020	Jul 2026	Wind
Rosemount Community Solar	Rosemount Community Solar	Rosemount, MN	8 GWh	Nov 2016	Dec 2025	Solar
Roseman	Roseman Energy, LLC	Anita, IA	7 GWh	Jan 2017	Dec 2025	Wind
Roquette America	Roquette America	Keokuk, IA	222 GWh	Jun 2004	Jul 2026	Natural Gas
Rollingstone Holdco CSG	Rollingstone Holdco LLC	Rollingstone, MN	8 GWh	Jul 2019	Dec 2025	Solar
Rolling Hills Wind Farm	MidAmerican Energy Co	Massena, IA	2 TWh	Nov 2011	Jul 2026	Wind
Rogers	Consumers Energy Co - (MI)	Big Rapids, MI	21 GWh	Dec 1921	Dec 2025	Water
Roeder Family Wind Farm LLC	RWE Clean Energy	Manly, IA	5 GWh	Aug 2011	Dec 2025	Wind
Rocky Mountain Elk Solar Community Solar	Rocky Mountain Elk Solar, LLC	Sheffield, IL	108 MWh	Nov 2025	Dec 2025	Solar
Rockville Solar II, LLC	CleanCapital Holdings	Indianapolis, IN	912 MWh	Jul 2014	Dec 2025	Solar
Rockville Solar I LLC	CleanCapital Holdings	Indianapolis, IN	2 GWh	Mar 2014	Dec 2025	Solar
Rockton	Eagle Creek Renewable Energy, LLC	Rockton, IL	6 GWh	Dec 1928	Dec 2025	Water
RockGen Energy Center	Dairyland Power Coop	Cambridge, WI	619 GWh	May 2001	Jul 2026	Natural Gas : 98.4% Distillate Fuel Oil : 1.6%
Rockford Solar	Rockford Solar, LLC	Rockford, IL	4 GWh	Nov 2021	Dec 2025	Solar
Rockford Plant	SoCore Energy LLC	Rockford, IL	3 GWh	Nov 2024	Dec 2025	Solar
Rockford CS 2	Rockford CS 2, LLC	Rockford, IL	4 GWh	Mar 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