Chieng Cong 1 is a 4 MW hydro power plant in Son La, Vietnam. It is operated by Lam Son Construction & Trading Co. Ltd. Based on its capacity (estimated), it can supply roughly 4.0k homes (estimated). It ranks #278 of 298 Vietnam power plants by installed capacity. 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 WRI1030896.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.
capacity: WRI GPPD; fuel: WRI GPPD
In context: how this plant compares
At 4 MW, Chieng Cong 1 is below the median hydro plant in Vietnam (20 MW). 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.
Key facts
- Share of Vietnam hydro capacity
- less than 0.1% of 17,313 MW across 174 plants in this dataset
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest hydro plants in Vietnam
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Lam Son Construction & Trading Co. Ltd.
Local climate & thermal context
This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a humid subtropical (dry winter) climate (Köppen Cwa) — Northern Hemisphere, latitude 21.5°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 71% 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: 23/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.
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.
Site climate & environmental severity
This site sits in a mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby plants
The #154 largest hydro power plant of 174 in Vietnam by capacity.
Vietnam has 174 hydro power plants in this dataset, together about 17,313 MW of capacity.
Nearby power plants
- Chieng Cong 2 · Hydro · 8 MW · Yen Bai
- Nam Pia · Hydro · 15 MW · Son La
- Nam Chien 2 · Hydro · 32 MW · Son La
- Suoi Lum 1 · Hydro · 20 MW · Yen Bai
- Nam Chien 1 · Hydro · 200 MW · Son La
- Pa Chien · Hydro · 22 MW · Son La
Location
Coordinates 21.4707, 104.1852 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Chieng Cong 1?
Chieng Cong 1 is a 4 MW hydro power plant in Son La, Vietnam.
Who operates Chieng Cong 1?
Chieng Cong 1 is operated by Lam Son Construction & Trading Co. Ltd.