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605 MW Natural Gas operating in Galveston, TX — Electric Reliability Council of Texas, Inc.
605 MW
Nameplate Capacity
10
Generators
units
Natural Gas Fired Combustion Turbine
Technology
2021
Operating Since
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | City of San Antonio - (TX) | Topaz Generating | — |
| Owner(s) | Topaz Generating, LLC, Topaz II, LLC | ACON Investments | — |
| Status | Operating | — | — |
Topaz Generating is a 605 MW natural gas-fired power plant located in Galveston County, Texas. The plant began operating in 2021 and consists of 10 natural gas-fired combustion turbine generators. It is owned by ACON Investments and operated by ProEnergy Services. The plant's output is delivered to the Electric Reliability Council of Texas (ERCOT) balancing authority.
In its most recent year of operation, Topaz Generating produced 598,589 MWh of electricity, achieving a capacity factor of 11.3%. The plant ranks 60th out of 144 power plants in Texas and 396th out of 945 plants nationally. Topaz Generating operates within the TRE NERC region.
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
NR — Non-Regulated
Entity Type
Municipal
Sector
IPP Non-CHP
33.4K MWh
Latest Month
598.6K MWh
Annual Generation
11.3%
Capacity Factor
CO₂ Intensity
1214 lb/MWh
NOx
0.140 lb/MWh
SO₂
0.006 lb/MWh
CH₄
0.022 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
13.6%
Annual Net Gen
722 GWh
CO₂eq
1216 lb/MWh
Subregion
ERCOT All
2021
$920/kW
Est. Construction Cost
Total estimated cost: $556.6M
Point of Interconnection
Nearest Substation
ISP Substation · 138 kV
Substation Distance
< 10 km
Operator
Texas-New Mexico Power
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
138_ATT_TPZ
Pricing Hub
HB_HOUSTON
Node Source
EIA-860 direct report
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