Song Bung 4A is a 49 MW hydro power plant in Quang Nam, Vietnam. It is operated by Phu Thanh My JSC.. Based on reported annual generation of 199 GWh, it can supply roughly 56,857 homes. It ranks #167 of 298 Vietnam power plants by installed capacity. Commissioned in 2012, it is around 14 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 33.0% of Vietnam's electricity; the national grid averages 461 gCO₂/kWh (45.4% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1030858.
At 49 MW, Song Bung 4A is well above the median hydro plant in Vietnam (20 MW). Technically it is described as conventional storage. Hydropower converts the energy of falling or flowing water into electricity; output depends on rainfall and reservoir level, and large dams also provide grid balancing and storage.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by Phu Thanh My JSC..
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 15.8°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
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.
The #58 largest hydro power plant of 174 in Vietnam by capacity.
Vietnam has 174 hydro power plants in this dataset, together about 16,750 MW of capacity.
Coordinates 15.7646, 107.6802 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Plants like this lose energy through hot valves, flanges, steam lines and heat exchangers. Inzonex makes removable, reusable valve, flange & pipe insulation that cuts that loss by up to 90% and holds surface temperatures under 45°C, unclipping in seconds for maintenance. See the industrial-AI efficiency hub for tools and benchmarks.
Song Bung 4A is a 49 MW hydro power plant in Quang Nam, Vietnam, commissioned in 2012.
Song Bung 4A generates about 199 GWh of electricity per year.
Its output is enough to supply roughly 56,857 homes.
Song Bung 4A is operated by Phu Thanh My JSC..
