Rio Nogales Power Project

711 Rio Nogales Drive, Seguin, TX 78155

Plant Summary Information

Rio Nogales Power Project is ranked #26 out of 861 power plants in Texas in terms of total annual net electricity generation.

Rio Nogales Power Project is comprised of 4 generators and generated 1.6 TWh during the 3-month period between May 2026 to August 2026.

Plant Name	Rio Nogales Power Project
Utility Name	City of San Antonio - (TX)
Location	Guadalupe County, TX
Initial Operation Date	May 2002
Last Update	Aug 2026
Annual Generation	4.6 TWh
Annual Consumption	36.6 M MMBtu
Ranked #241 out of 13,301 Power Plants Nationwide
Ranked #120 out of 2,218 Natural Gas Power Plants Nationwide
Ranked #26 out of 861 Texas Power Plants
Ranked #18 out of 314 Texas Natural Gas Power Plants
Fuel Types	Natural Gas

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Summary Information
Plant Name	Rio Nogales Power Project (55137)
Plant Address	711 Rio Nogales Drive, Seguin, TX 78155
Utility	City of San Antonio - (TX) (16604)
Latitude, Longitude	29.59306, -97.97322
Generation Dates on File	Feb 2002 to Aug 2026
Initial Operation Date	May 2002
Annual Generation	4.6 TWh
Fuel Types	Natural Gas

Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration Status	No
FERC Small Power Producer Status	No
FERC Exempt Wholesale Generator Status	No

Regulatory Information
Regulatory Status	Regulated
NERC Region	TRE
Balancing Authority	Electric Reliability Council of Texas, Inc. (ERCO)
NAICS Code	Utilities (22)
Sector	Electric Utility (1)
Water Source	Municipality
Ash Impoundment	No
Transmission / Distribution Owner	Lower Colorado River Authority (11269)
Grid Voltage	345.00 kV
Energy Storage	No

Natural Gas Information
Pipeline Name	ENTERPRISE TEXAS PIPELINE KINDER MORGAN TEXAS PIPELINE LLC PHILLIPS UTIL GAS CORP
Natural Gas Storage	No

* Data obtained from the 2025 EIA 860 Report

Technology	Natural Gas Fired Combined Cycle
Prime Mover	Combined Cycle Combustion Turbine Part
Unit Code	CC1
Ownership	Single Owner
Can Bypass Heat Recovery Steam Generator	No
RTO ISO LMP Node Designation	RIONOG_CT1
RTO ISO Location Designation For Reporting Wholesale Sales Data	RIONOG_CT1
Nameplate Capacity	223.5 MW
Nameplate Power Factor	0.85
Summer Capacity	165.5 MW
Winter Capacity	199 MW
Minimum Load	100 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2002
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Technology	Natural Gas Fired Combined Cycle
Prime Mover	Combined Cycle Combustion Turbine Part
Unit Code	CC1
Ownership	Single Owner
Can Bypass Heat Recovery Steam Generator	No
RTO ISO LMP Node Designation	RIONOG_CT2
RTO ISO Location Designation For Reporting Wholesale Sales Data	RIONOG _CT2
Nameplate Capacity	222 MW
Nameplate Power Factor	0.85
Summer Capacity	165.5 MW
Winter Capacity	199 MW
Minimum Load	100 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2002
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Technology	Natural Gas Fired Combined Cycle
Prime Mover	Combined Cycle Combustion Turbine Part
Unit Code	CC1
Ownership	Single Owner
Can Bypass Heat Recovery Steam Generator	No
RTO ISO LMP Node Designation	RIONOG_CT3
RTO ISO Location Designation For Reporting Wholesale Sales Data	RIONOG_CT3
Nameplate Capacity	223.5 MW
Nameplate Power Factor	0.85
Summer Capacity	165.5 MW
Winter Capacity	199 MW
Minimum Load	100 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2002
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Technology	Natural Gas Fired Combined Cycle
Prime Mover	Combined Cycle Steam Part
Unit Code	CC1
Ownership	Single Owner
Duct Burners	Yes
RTO ISO LMP Node Designation	RIONOG_ST1
RTO ISO Location Designation For Reporting Wholesale Sales Data	RIONOG_ST1
Nameplate Capacity	439 MW
Nameplate Power Factor	0.85
Summer Capacity	303 MW
Winter Capacity	319 MW
Minimum Load	50 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	May 2002
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Owner Name	Address	Generator	Ownership
*We couldn't locate any owners for this plant*

Power plants with a similar annual net generation from Natural Gas.

Rank	Plant Name	Plant Location	Annual Generation
#110	E B Harris Electric Generating Plant	Autaugaville, AL	5.0 TWh
#111	Pasadena Cogeneration	Pasadena, TX	5.0 TWh
#112	Brandy Branch	Baldwin, FL	4.8 TWh
#113	Jasper	Hardeeville, SC	4.8 TWh
#114	Formosa Utility Venture Ltd	Point Comfort, TX	4.9 TWh
#115	Tenaska Frontier Generation Station	Shiro, TX	4.8 TWh
#116	Caledonia	Steens, MS	4.8 TWh
#117	St. Charles Power Station (LA)	La Place, LA	4.7 TWh
#118	Potomac Energy Center, LLC	Leesburg, VA	4.7 TWh
#119	CPV Valley Energy Center	Wawayanda, NY	4.6 TWh
#121	CPV Fairview Energy Center	Johnstown, PA	4.6 TWh
#122	Lowman Energy Center	Leroy, AL	4.6 TWh
#123	Lower Mount Bethel Energy	Bangor, PA	4.5 TWh
#124	Buck	Salisbury, NC	4.5 TWh
#125	Intermountain Power Project	Delta, UT	5.5 TWh
#126	Key	Brandywine, MD	4.5 TWh
#127	Ouachita	Sterlington, LA	4.4 TWh
#128	Fremont Energy Center	Fremont, OH	4.4 TWh
#129	Channel Energy Center LLC	Pasadena, TX	4.3 TWh
#130	Tenaska Gateway Generating Station	Mt. Enterprise, TX	4.3 TWh

Below are closest 20 power plants surrounding Rio Nogales Power Project.

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Blue Wing Solar Energy Generation	San Antonio, TX	19.5 GWh	32.5 mi
Canyon	Canyon Lake, TX	1.0 MWh	23.3 mi
CPS 1 Community Solar	Adkins, TX	1.7 GWh	23.2 mi
Dunlap TP 1	New Brannfels, TX	3.7 GWh	5.4 mi
FELPS 1 - Calaveras	Floresville, TX	1.9 GWh	30.7 mi
FELPS 2 - Calaveras	Floresville, TX	1.9 GWh	30.7 mi
FELPS 3 - Floresville South	Floresville, TX	2.8 GWh	33 mi
FELPS 4 - Floresville South	Floresville, TX	2.8 GWh	33.1 mi
FELPS 5- Floresville South	Floresville, TX	1.8 GWh	33.1 mi
Guadalupe Generating Station	Marion, TX	5.5 TWh	10.4 mi
Hays Energy Project	San Marcos, TX	5.6 TWh	13 mi
HEB_CPSSADC	San Antonio, TX	862.0 MWh	26.3 mi
IKEA Live Oak Rooftop PV System	Live Oak, TX	2.0 GWh	18.4 mi
J K Spruce	San Antonio, TX	6.4 TWh	28.6 mi
Mesquite Creek LFGTE Project	New Braunfels, TX	24.0 GWh	10.4 mi
Niagara Bottling - Seguin	Seguin, TX	7.9 GWh	0.4 mi
O W Sommers	San Antonio, TX	2.3 TWh	28.9 mi
OCI Alamo 2, LLC	Converse, TX	8.2 GWh	23.2 mi
OCI Alamo 3 LLC	San Antonio, TX	9.6 GWh	21 mi
Timmerman Power Plant	Maxwell, TX	207.9 GWh	21.9 mi