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Topaz Generating — Power plant · Gas, combustion turbine · City of San Antonio - (TX)
  • Combustion
  • Operating
  • 10 · 100 · 1,000 MW

Topaz Generating

Power plant · Gas, combustion turbine

Key facts

Power plant · Gas, combustion turbineran 11% of 2025 Operating
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
2021
Net generation, 2025
598,589 MWh
Grid
138 kV to Texas-New Mexico Power Co (ERCO)
Location
Galveston County, Texas
Net generation, 2025
598,589MWh
Fuel burned, 2025
6,197,037MMBtu
Capacity factor, 2025
11.3%
Heat rate, 2025
10,353Btu/kWh
Capacity factor % of full output, by year
Heat rate Btu per kWh, by year
YearNet generation (MWh)Fuel burned (MMBtu)Capacity factorHeat rate (Btu/kWh)
2026 (8 of 12 months)301,5193,110,082—10,315
2025598,5896,197,03711.3%10,353
2024688,7077,092,10113.0%10,298
2023722,3497,313,80013.6%10,125
2022663,8916,796,01312.5%10,237
2021 (6 of 12 months)168,6381,736,008—10,294
How these are worked out

Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.

Sources

3 sources

Sources EIA-860M · GEM · EIA

Sources

  • EIA-860MOpen license · retrieved Nov 4, 2026
  • GEMOpen license, with credit · retrieved Oct 26, 2026Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
  • EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)

Every source and license · Attribution

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