Rio Nogales Power Project

711 Rio Nogales Drive, Seguin, TX 78155

Plant Summary Information

Rio Nogales Power Project is ranked #25 out of 852 power plants in Texas in terms of total annual net electricity generation.

Rio Nogales Power Project is comprised of 4 generators and generated 1.2 TWh during the 3-month period between February 2026 to May 2026.

Plant NameRio Nogales Power Project
Utility NameCity of San Antonio - (TX)
LocationGuadalupe County, TX
Initial Operation DateMay 2002
Last Update May 2026
Annual Generation 4.6 TWh
Annual Consumption 36.5 M MMBtu
Ranked #243 out of 13,081 Power Plants Nationwide
Ranked #117 out of 2,206 Natural Gas Power Plants Nationwide
Ranked #25 out of 852 Texas Power Plants
Ranked #17 out of 313 Texas Natural Gas Power Plants
Fuel Types Natural Gas

Map of Rio Nogales Power Project

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Monthly Net Generation for Rio Nogales Power Project

Monthly Plant Fuel Consumption for Rio Nogales Power Project

Rio Nogales Power Project Details

Summary Information
Plant NameRio Nogales Power Project (55137)
Plant Address711 Rio Nogales Drive, Seguin, TX 78155
UtilityCity of San Antonio - (TX) (16604)
Latitude, Longitude29.59306, -97.97322
Generation Dates on FileFeb 2002 to May 2026
Initial Operation DateMay 2002
Annual Generation 4.6 TWh
Fuel Types Natural Gas
 
Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration StatusNo
FERC Small Power Producer StatusNo
FERC Exempt Wholesale Generator StatusNo
Regulatory Information
Regulatory StatusRegulated
NERC RegionTRE
Balancing AuthorityElectric Reliability Council of Texas, Inc. (ERCO)
NAICS CodeUtilities (22)
Sector Electric Utility (1)
Water SourceMunicipality
Ash Impoundment No
Transmission / Distribution OwnerLower Colorado River Authority (11269)
Grid Voltage 345.00 kV
Energy StorageNo
 
Natural Gas Information
Pipeline Name ENTERPRISE TEXAS PIPELINE
KINDER MORGAN TEXAS PIPELINE LLC
PHILLIPS UTIL GAS CORP
Natural Gas StorageNo

Generator CTG1 Details Operating May 2002

TechnologyNatural Gas Fired Combined Cycle
Prime MoverCombined Cycle Combustion Turbine Part
Unit CodeCC1
OwnershipSingle Owner
Can Bypass Heat Recovery Steam GeneratorNo
RTO ISO LMP Node DesignationRIONOG_CT1
RTO ISO Location Designation For Reporting Wholesale Sales DataRIONOG_CT1
Nameplate Capacity223.5 MW
Nameplate Power Factor0.85
Summer Capacity165.5 MW
Winter Capacity199 MW
Minimum Load100 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateMay 2002
Combined Heat & Power No
Sector NameElectric Utility (1)
Energy SourceNatural Gas
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full Load12H
Multiple FuelsNo
Cofire FuelsNo
Switch Between Oil And Natural GasNo

Generator CTG2 Details Operating May 2002

TechnologyNatural Gas Fired Combined Cycle
Prime MoverCombined Cycle Combustion Turbine Part
Unit CodeCC1
OwnershipSingle Owner
Can Bypass Heat Recovery Steam GeneratorNo
RTO ISO LMP Node DesignationRIONOG_CT2
RTO ISO Location Designation For Reporting Wholesale Sales DataRIONOG _CT2
Nameplate Capacity222 MW
Nameplate Power Factor0.85
Summer Capacity165.5 MW
Winter Capacity199 MW
Minimum Load100 MW
Uprate/Derate Completed No
Uprate Or Derate CompletedJune 2025
StatusOperating
First Operation DateMay 2002
Combined Heat & Power No
Sector NameElectric Utility (1)
Energy SourceNatural Gas
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full Load12H
Multiple FuelsNo
Cofire FuelsNo
Switch Between Oil And Natural GasNo

Generator CTG3 Details Operating May 2002

TechnologyNatural Gas Fired Combined Cycle
Prime MoverCombined Cycle Combustion Turbine Part
Unit CodeCC1
OwnershipSingle Owner
Can Bypass Heat Recovery Steam GeneratorNo
RTO ISO LMP Node DesignationRIONOG_CT3
RTO ISO Location Designation For Reporting Wholesale Sales DataRIONOG_CT3
Nameplate Capacity223.5 MW
Nameplate Power Factor0.85
Summer Capacity165.5 MW
Winter Capacity199 MW
Minimum Load100 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateMay 2002
Combined Heat & Power No
Sector NameElectric Utility (1)
Energy SourceNatural Gas
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full Load12H
Multiple FuelsNo
Cofire FuelsNo
Switch Between Oil And Natural GasNo

Generator STG1 Details Operating May 2002

TechnologyNatural Gas Fired Combined Cycle
Prime MoverCombined Cycle Steam Part
Unit CodeCC1
OwnershipSingle Owner
Duct BurnersYes
RTO ISO LMP Node DesignationRIONOG_ST1
RTO ISO Location Designation For Reporting Wholesale Sales DataRIONOG_ST1
Nameplate Capacity439 MW
Nameplate Power Factor0.85
Summer Capacity303 MW
Winter Capacity319 MW
Minimum Load50 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateMay 2002
Combined Heat & Power No
Sector NameElectric Utility (1)
Energy SourceNatural Gas
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full Load12H
Multiple FuelsNo
Cofire FuelsNo
Switch Between Oil And Natural GasNo

Rio Nogales Power Project Plant Owners

Owner NameAddressGeneratorOwnership
We couldn't locate any owners for this plant

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