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Stung Atai

Hydro power plant in Trat, Cambodia. Approximate location 12.0752, 103.1899.

HydroTratCambodia

Stung Atai is a 120 MW hydro power station in Trat, Cambodia. Based on its capacity (estimated), it can supply roughly 120,137 homes (estimated). It ranks #5 of 16 Cambodia power plants by installed capacity. Commissioned in 2013, it is around 13 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 29.9% of Cambodia's electricity; the national grid averages 499 gCO₂/kWh (40.9% low-carbon) (2025).

120MW installed capacity
120,137homes powered (est.)
2013commissioned (~13 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1026837.

Capacity vs largest hydro plants in Cambodia

Lower Russei Chrum: 338 MW338Lower Russ…Stung Tatai: 246 MW246Stung TataiKamchay: 193 MW193KamchayStung Atai: 120 MW120Stung AtaiKirirom I: 12 MW12Kirirom I

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

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a tropical monsoon climate (Köppen Am) — Northern Hemisphere, latitude 12.1°N — which shapes how much energy it can produce and how its output varies through the year.

24.5°Cannual mean temp
0heating degree-days (base 18°C)
2,371cooling degree-days (base 18°C)
543 melevation

Monthly mean temperature

J: 23 °CJF: 24 °CFM: 25 °CMA: 26 °CAM: 26 °CMJ: 25 °CJJ: 25 °CJA: 25 °CAS: 24 °CSO: 24 °CON: 24 °CND: 23 °CD26 °C

Heating degree-days here run 100% 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: 13/100 — 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 #4 largest hydro power plant of 5 in Cambodia by capacity.

Cambodia has 5 hydro power plants in this dataset, together about 909 MW of capacity.

Nearby power plants

Location

Coordinates 12.0752, 103.1899 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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