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%

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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
Pearl Station	Prairie Power, Inc	Pearl, IL	64 MWh	May 1973	Dec 2025	Distillate Fuel Oil
Prairie Rose Wind Farm	Prairie Rose Wind Farm	Hardwick, MN	458 GWh	Nov 2012	May 2026	Wind
Prairie State Generating Station	Prairie State Generating Co LLC	Marissa, IL	12 TWh	May 2012	May 2026	Bituminous Coal : 99.8%
Prairie State Solar Project	Prairie State Solar, LLC	Swanwick Township, IL	224 GWh	Jun 2021	May 2026	Solar
Prawer Project CSG	Prawer Community Solar LLC	Clear Lake, MN	2 GWh	Dec 2019	Dec 2025	Solar
Prescott Wind Farm	Prescott Wind Energy LLC	Prescott, IA	162 GWh	Aug 2024	May 2026	Wind
Preston Garden (CSG)	Preston Garden LLC	Franklin, MN	2 GWh	Jul 2024	Dec 2025	Solar
Preston (MN)	Preston Public Utilities Comm	Preston, MN	78 MWh	Dec 1948	Dec 2025	Distillate Fuel Oil : 71.9% Natural Gas : 28.1%
Portside Energy	Primary Energy Recycling Holdings, LLC	Portage, IN	262 GWh	Aug 1997	Dec 2025	Natural Gas
Primient Decatur Plant Cogen	Primary Products Ingredients Americas, LLC	Decatur, IL	150 GWh	Dec 1988	Dec 2025	Natural Gas
Primient	Primary Products Ingredients Americas, LLC d/b/a Primient	Lafayette, IN	408 GWh	May 2021	Dec 2025	Natural Gas
Princeton (MN)	Princeton Public Utils Comm	Princeton, MN	108 MWh	Aug 1953	Dec 2025	Distillate Fuel Oil
Syncarpha Prinsburg CSG (Ledeboer)	Prinsburg CSG I, LLC	Prinsburg, MN	2 GWh	Nov 2018	Dec 2025	Solar
Prosperity Wind	Prosperity Wind, LLC	Deland, IL	932 GWh	Dec 2024	May 2026	Wind
Purdue University	Purdue University	West Lafayette, IN	115 GWh	Dec 1968	May 2026	Natural Gas : 93.6% Bituminous Coal : 6.4%
Quilt Block Wind Farm LLC	Quilt Block Wind Farm LLC	Darlington, WI	371 GWh	Aug 2017	May 2026	Wind
Rafterville Solar	Rafterville Solar, LLC	Atwater, MN	2 GWh	Jun 2023	Dec 2025	Solar
Ragsdale Solar LLC	Ragsdale Solar, LLC	Canton, MS	242 GWh	Oct 2024	May 2026	Solar
Rail Splitter Wind Farm	Rail Splitter Wind Farm LLC	Hopedale, IL	269 GWh	Jul 2009	Dec 2025	Wind
Lake Charles Plant	Rain CII Carbon LLC	Sulphur, LA	115 GWh	Nov 2012	Oct 2025	Waste Heat
Coal Creek	Rainbow Energy Center	Underwood, ND	8 TWh	May 1979	May 2026	Refined Coal : 99.9%
RATTS 1	Ratts 1 Solar LLC	Petersburg, IN	174 GWh	Sep 2025	May 2026	Solar
Connexus Solar Stanford 1STF	REA Investments, LLC	St. Francis, MN	13 GWh	Apr 2021	Dec 2025	Solar
Sherburne Solar Holdings, LLC	REA Investments, LLC	Princeton, MN	4 GWh	Feb 2021	Dec 2025	Solar
Novel Benedix Solar CSG	REA Investments, LLC	Mantorville, MN	2 GWh	Nov 2020	Dec 2025	Solar
Novel Haley Solar CSG	REA Investments, LLC	Waseca, MN	2 GWh	May 2020	Dec 2025	Solar
Novel Bartel Solar CSG	REA Investments, LLC	Byron, MN	2 GWh	Mar 2020	Dec 2025	Solar
Novel Stavem Solar LLC CSG	REA Investments, LLC	Glenwood, MN	2 GWh	Aug 2021	Dec 2025	Solar
Novel Handeland Solar LLC (CSG)	REA Investments, LLC	Clarkfield, MN	2 GWh	May 2022	Dec 2025	Solar
Novel MNDot Solar CSG	REA Investments, LLC	Afton, MN	2 GWh	Oct 2020	Dec 2025	Solar
Novel Winegar Partnership Solar CSG	REA Investments, LLC	Waseca, MN	2 GWh	Mar 2021	Dec 2025	Solar
Novel Novak Solar LLC CSG	REA Investments, LLC	Foley, MN	1 GWh	Jul 2021	Dec 2025	Solar
Novel Peter Solar CSG	REA Investments, LLC	Waterville, MN	2 GWh	Aug 2021	Dec 2025	Solar
Novel Martin Solar One LLC (McLeod) CSG	REA Investments, LLC	Lester Prairie, MN	2 GWh	Jul 2019	Dec 2025	Solar
Novel Caroline Solar, LLC CSG	REA Investments, LLC	North Branch, MN	2 GWh	Apr 2023	Dec 2025	Solar
Novel David Solar LLC CSG	REA Investments, LLC	Waseca, MN	2 GWh	Feb 2022	Dec 2025	Solar
Hayfield Solar I LLC CSG	REA Investments, LLC	Hayfield, MN	2 GWh	Jan 2021	Dec 2025	Solar
Hayfield Solar III LLC CSG	REA Investments, LLC	Hayfield, MN	2 GWh	Jan 2021	Dec 2025	Solar
Pipestone City Solar LLC CSG	REA Investments, LLC	Pipestone, MN	2 GWh	Jul 2021	Dec 2025	Solar
John A Logan College Solar	REA Investments, LLC	Carterville, IL	2 GWh	Nov 2019	Dec 2025	Solar
Novel Huneke Solar LLC CSG	REA Investments, LLC	Zumbrota, MN	2 GWh	Aug 2021	Dec 2025	Solar
Novel Denzer Solar LLC CSG	REA Investments, LLC	Minnesota City, MN	2 GWh	Jun 2022	Dec 2025	Solar
Novel Herber Solar CSG	REA Investments, LLC	Rollingstone, MN	2 GWh	Jan 2020	Dec 2025	Solar
Novel Kanewischer Solar CSG	REA Investments, LLC	Waseca, MN	2 GWh	Sep 2020	Dec 2025	Solar
Novel Wayne Solar LLC CSG	REA Investments, LLC	Mantorville, MN	2 GWh	Dec 2020	Dec 2025	Solar
Novel Byron Solar CSG	REA Investments, LLC	Byron, MN	2 GWh	Apr 2020	Dec 2025	Solar
Novel Jewison Solar CSG	REA Investments, LLC	Janesville, MN	1 GWh	Sep 2020	Dec 2025	Solar
Novel Debra Solar LLC CSG	REA Investments, LLC	Mantorville, MN	2 GWh	Nov 2020	Dec 2025	Solar
Novel Pederson Solar CSG	REA Investments, LLC	Sauk Rapids, MN	2 GWh	Jul 2020	Dec 2025	Solar
Novel Schmoll Farms Solar CSG	REA Investments, LLC	Dodge Center, MN	1 GWh	Oct 2020	Dec 2025	Solar
Novel DeCook Solar CSG	REA Investments, LLC	Byron, MN	2 GWh	Feb 2020	Dec 2025	Solar
Novel Herickhoff Solar CSG	REA Investments, LLC	Osakis, MN	2 GWh	Mar 2020	Dec 2025	Solar
Novel Stein Solar LLC CSG	REA Investments, LLC	Taylors Falls, MN	2 GWh	Aug 2022	Dec 2025	Solar
Novel Historical Society Solar CSG	REA Investments, LLC	Sacred Heart, MN	2 GWh	Oct 2019	Dec 2025	Solar
Novel Reber Solar CSG	REA Investments, LLC	Albany, MN	2 GWh	Oct 2019	Dec 2025	Solar
Novel Brooten Solar CSG	REA Investments, LLC	Brooten, MN	2 GWh	Sep 2019	Dec 2025	Solar
Novel Schroeder Solar LLC CSG	REA Investments, LLC	Renville, MN	2 GWh	Dec 2022	Dec 2025	Solar
Novel Sunnyfield Farms Solar LLC CSG	REA Investments, LLC	Mazeppa, MN	2 GWh	May 2022	Dec 2025	Solar
Novel Shelly Solar LLC (CSG)	REA Investments, LLC	Cottonwood, MN	2 GWh	Aug 2022	Dec 2025	Solar
Novel Martens Solar LLC(CSG)	REA Investments, LLC	Lafayette, MN	2 GWh	Feb 2022	Dec 2025	Solar
Flambeau Solar Partners	REC Solar	Phillips, WI	4 GWh	Apr 2017	Dec 2024	Solar
Redfield Solar	Redfield PV I, LLC	Sheridan, AR	36 GWh	-	May 2026	Solar
Redwood Falls	Redwood Falls Public Util Comm	Redwood Falls, MN	3 GWh	Dec 1969	Dec 2025	Water : 84.0% Natural Gas : 12.5% Distillate Fuel Oil : 3.4%
South Generation	Redwood Falls Public Util Comm	Redwood Falls, MN	281 MWh	Feb 2003	Dec 2025	Distillate Fuel Oil
REG Juhl Glenville Wind, LLC	REG Juhl Glenville Wind, LLC	Albert Lea, MN	8 GWh	Nov 2020	Dec 2025	Wind
Eolos Wind Energy Research Field Station	Regents of the University of Minnesota	Rosemount, MN	2 GWh	Sep 2011	Dec 2025	Wind
Noble Ridge LLC	RENEW Energy Inc	Wilmont, MN	61 MWh	Nov 2001	Dec 2024	Wind
Uilk Wind LLC	RENEW Energy Inc	Pipestone, MN	7 GWh	Dec 2009	Dec 2025	Wind
Richland Center Renewable Energy LLC	Richland Center Renewable Energy LLC	Richland Center, WI	7 GWh	Feb 2013	Dec 2025	Other Biomass Gas
Ridge Farm	Ridge Farm Solar 1 LLC	Ridge Farm, IL	4 GWh	Nov 2020	Dec 2025	Solar
Ridgewind	Ridgewind Power Partners LLC	Woodstock, MN	75 GWh	Dec 2010	Dec 2025	Wind
River Fork Solar, LLC	River Fork Solar, LLC	Albion, MI	291 GWh	Sep 2024	May 2026	Solar
Riverview Energy Systems	Riverview Energy Systems	Riverview, MI	1 GWh	Dec 1987	Dec 2024	Landfill Gas
RJC I CSG	RJC I CSG LLC	Owatonna, MN	2 GWh	Jun 2018	Dec 2025	Solar
RJC II Community Solar Garden	RJC II CSG LLC	Owatonna, MN	2 GWh	May 2018	Dec 2025	Solar
Roberds Garden CSG	Roberds Garden LLC	Faribault, MN	2 GWh	Aug 2019	Dec 2024	Solar
Westside Energy Station	Rochester Public Utilities	Rochester, MN	57 GWh	Feb 2018	Dec 2025	Natural Gas
Rochester Hydro	Rochester Public Utilities	Mazeppa, MN	22 GWh	Aug 1984	Dec 2025	Water
IBM West	Rochester Public Utilities	Rochester, MN	24 MWh	Sep 2005	Dec 2025	Distillate Fuel Oil
Cascade Creek	Rochester Public Utilities	Rochester, MN	33 GWh	May 1975	Dec 2025	Natural Gas : 98.4% Distillate Fuel Oil : 1.6%
Rock County Wind Fuel, LLC	Rock County Wind Fuel, LLC	Luverne, MN	17 GWh	Apr 2020	Dec 2025	Wind
Rockford CS 1	Rockford CS 1, LLC	Rockford, IL	4 GWh	Mar 2021	Dec 2025	Solar
Rockford CS 2	Rockford CS 2, LLC	Rockford, IL	4 GWh	Mar 2021	Dec 2025	Solar
Rockford Solar	Rockford Solar, LLC	Rockford, IL	4 GWh	Nov 2021	Dec 2025	Solar
Battle Creek Mill	RockTenn-Battle Creek Mill	Battle Creek, MI	4 GWh	Dec 1950	Dec 2024	Natural Gas
Rocky Mountain Elk Solar Community Solar	Rocky Mountain Elk Solar, LLC	Sheffield, IL	108 MWh	Nov 2025	Dec 2025	Solar
Rollingstone Holdco CSG	Rollingstone Holdco LLC	Rollingstone, MN	8 GWh	Jul 2019	Dec 2025	Solar
Roquette America	Roquette America	Keokuk, IA	208 GWh	Jun 2004	May 2026	Natural Gas
Roseman	Roseman Energy, LLC	Anita, IA	7 GWh	Jan 2017	Dec 2025	Wind
Rosemount Community Solar	Rosemount Community Solar	Rosemount, MN	8 GWh	Nov 2016	Dec 2025	Solar
Rosewater Wind Farm	Rosewater Wind Farm LLC	Chalmers, IN	317 GWh	Nov 2020	May 2026	Wind
CED Mason City Wind	RWE Clean Energy	Mason City, IA	29 GWh	Apr 2020	Dec 2025	Wind
CED Manchester Wind	RWE Clean Energy	Manchester, IA	28 GWh	Mar 2022	Dec 2025	Wind
CED Centerville Wind	RWE Clean Energy	Centerville, IA	26 GWh	Nov 2021	Dec 2025	Wind
Red Lake Falls Community Hybrid	RWE Clean Energy	Red Lake Falls, MN	15 GWh	Nov 2020	Dec 2025	Wind : 95.1% Solar : 4.9%
Valley View Transmission LLC	RWE Clean Energy	Chandler, MN	4 GWh	Jun 2011	Dec 2025	Wind
Roeder Family Wind Farm LLC	RWE Clean Energy	Manly, IA	5 GWh	Aug 2011	Dec 2025	Wind
Settlers Trail Wind Farm LLC	RWE Clean Energy	Sheldon, IL	320 GWh	Sep 2011	Dec 2025	Wind
Windwalkers LLC	RWE Clean Energy	Kensett, IA	2 GWh	Aug 2011	Dec 2025	Wind
CED Champaign Solar LLC	RWE Clean Energy	Champaign, IL	3 GWh	Jun 2020	Dec 2025	Solar

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