Commerce ESS

Storage power plant in Texas, United States of America. Approximate location 29.4344, -98.6176.

StorageTexasUnited States of America

Commerce ESS is a 10 MW storage power plant in Texas, United States of America. It is operated by City of San Antonio - (TX). Based on reported annual generation of 0 GWh, it can supply roughly -28 homes. It ranks #4592 of 9,833 United States of America power plants by installed capacity. Commissioned in 2019, it is around 7 years old — recently built. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

10MW installed capacity
0GWh reported / yr
-28homes powered
2019commissioned (~7 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0062609.

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Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by City of San Antonio - (TX). All plants by this company →

Local climate & thermal context

This storage plant stores and releases electricity (pumped-hydro or batteries) to balance the grid. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 29.4°N — which shapes how much energy it can produce and how its output varies through the year.

20.5°Cannual mean temp
656heating degree-days (base 18°C)
1,588cooling degree-days (base 18°C)
223 melevation

Monthly mean temperature

J: 11 °CJF: 13 °CFM: 17 °CMA: 21 °CAM: 24 °CMJ: 27 °CJJ: 29 °CJA: 29 °CAS: 26 °CSO: 22 °CON: 16 °CND: 12 °CD29 °C

Heating degree-days here run 73% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 22/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

How it compares & nearby plants

The #28 largest storage power plant of 104 in United States of America by capacity.

United States of America has 104 storage power plants in this dataset, together about 816 MW of capacity.

Nearby power plants

Location

Coordinates 29.4344, -98.6176 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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