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1082.2 MW Natural Gas Fired Combined Cycle (730 MW) + Natural Gas Steam Turbine (352 MW) operating in Nueces, TX
1,082.2 MW
Nameplate Capacity
4
Generators
units
Hybrid (2)
Technology
Natural Gas Fired Combined Cycle + Natural Gas Steam Turbine
1974
Operating Since
Coordinates
27.6064, -97.3117
County
Nueces, TX
Nearby Plants
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Request a demo →| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | City of San Antonio - (TX) | — | — |
| Owner(s) | City of San Antonio - (TX) | — | — |
| Status | Operating | — | — |
The Barney M Davis power plant, located in Nueces County, Texas, has a total capacity of 1082.2 MW. The plant began operating in 1974 and is owned and operated by the City of San Antonio. It utilizes natural gas as its primary fuel source and employs both natural gas-fired combined cycle and natural gas steam turbine technologies. The plant consists of 4 generators and is considered a hybrid facility.
In the latest year of reported generation data, the Barney M Davis plant produced 1,579,099 MWh of electricity, operating at a capacity factor of 16.5%. The plant is located within the Electric Reliability Council of Texas (ERCOT) balancing authority and the TRE NERC region. Barney M Davis ranks as the 21st largest power plant in Texas out of 144, and 149th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
Electric Reliability Council of Texas, Inc. (ERCO)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility
119.1K MWh
Latest Month
1.6M MWh
Annual Generation
16.5%
Capacity Factor
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Request a demo →CO₂ Intensity
1025 lb/MWh
NOx
0.304 lb/MWh
SO₂
0.005 lb/MWh
CH₄
0.019 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
16.3%
Annual Net Gen
1541 GWh
CO₂eq
1026 lb/MWh
Subregion
ERCOT All
2013
$965/kW
Est. Construction Cost
Total estimated cost: $1.0B
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Request a demo →Point of Interconnection
Nearest Substation
Barney Davis Substation · 138 kV
Substation Distance
0 km
Operator
American Electric Power
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
B_DAVIS_3
Pricing Hub
HB_SOUTH
Alt. Hub / Zone
LZ_SOUTH
Location Type
Resource Node
Node Source
Curated node match
Last updated 2026-03-26
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