940.2 MW Natural Gas operating in Guadalupe, TX — Electric Reliability Council of Texas, Inc.
940.2 MW
Nameplate Capacity
4
Generators
units
Natural Gas Fired Combined Cycle
Technology
2002
Operating Since
Coordinates
29.5931, -97.9732
County
Guadalupe, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | City of San Antonio - (TX) | — | — |
| Owner(s) | City of San Antonio - (TX) | — | — |
| Status | Operating | — | — |
The Rio Nogales Power Project is a 940.2 MW natural gas-fired combined cycle power plant located in Guadalupe County, Texas. The plant began operating in 2002 and consists of four generators. It is owned and operated by the City of San Antonio. The plant is connected to the Electric Reliability Council of Texas (ERCOT) grid and falls within the TRE NERC region.
In the most recent year of reported data, the Rio Nogales Power Project generated 4,144,951 MWh of electricity, achieving a capacity factor of 50.4%. The plant ranks as the 26th largest in Texas out of 144 plants, and 186th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
NERC Region
TRE
Balancing Authority
Electric Reliability Council of Texas, Inc.
Grid Voltage
345 kV
Regulatory Status
RE
Entity Type
Municipal
Sector
Electric Utility
249.4K MWh
Latest Month
4.1M MWh
Annual Generation
50.4%
Capacity Factor
No financial data available for this plant.
Point of Interconnection
Nearest Substation
Rio Nogales Switchyard · 345 kV
Substation Distance
< 10 km
Operator
CPS Energy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
RIONOG_ST1
Pricing Hub
HB_SOUTH
Secondary Zone
LZ_SOUTH
Location Type
Resource Node
Node Source
EIA-860 direct report
Last updated 2026-03-14
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