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Nam Luc

Hydro power plant in Son La, Vietnam. Approximate location 21.3412, 104.3498.

HydroSon LaVietnam

Nam Luc is a 24 MW hydro power plant in Son La, Vietnam. It is operated by South East Asia Corporation. Based on reported annual generation of 100 GWh, it can supply roughly 29k homes. It ranks #196 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).

24Legacy source-record capacity
100GWh reported / yr
28,571homes powered

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1030887.

Data status

Known data

FacilityNam Luc WRI
CountryVietnam · Son La WRI
Coordinates21.3412, 104.3498 WRI
FuelHydro WRI
MW installed capacity24 MW WRI source record; scope not independently normalised
OwnerSouth East Asia Corporation WRI
GWh reported / yr100 GWh/yr WRI

Calculated from dataset

Capacity rank in country#196 of 298 calculated
Fuel-specific rank in country#80 of 174 calculated
Capacity vs country/fuel peers1.20× · 20 MW median · 174 peers calculated
Homes-powered equivalent28,571 calculated from reported generation
Climate20.1°C · HDD 320 derived from coordinates
Environmental severityC3 · 33/100 derived from coordinates

Not available

CommissionedNot available not in dataset
TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 24 MW, Nam Luc is well above 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.

Capacity vs largest hydro plants in Vietnam

Hoa Binh: 2,400 MW2kHoa BinhSon La: 2,400 MW2kSon LaLai Chau: 1,200 MW1kLai ChauIaly: 720 MW720IalyHuoi Quang: 520 MW520Huoi QuangHam Thuan - Da Mi: 475 MW475Ham Thuan …Tri An: 400 MW400Tri AnSe San 4: 360 MW360Se San 4

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

Owner

Operated by South East Asia Corporation.

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 21.3°N — which shapes how much energy it can produce and how its output varies through the year.

20.1°Cannual mean temp
320heating degree-days (base 18°C)
1,098cooling degree-days (base 18°C)
905 melevation

Monthly mean temperature

J: 14 °CJF: 15 °CFM: 18 °CMA: 21 °CAM: 24 °CMJ: 25 °CJJ: 24 °CJA: 24 °CAS: 23 °CSO: 21 °CON: 18 °CND: 15 °CD25 °C

Heating degree-days here run 87% 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: 18/100 — 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

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
33/100environmental-severity index
10.7°Cseasonal temperature swing
245 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #80 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

Location

Coordinates 21.3412, 104.3498 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Nam Luc?

Nam Luc is a 24 MW source-record hydro power plant in Son La, Vietnam.

How much electricity does Nam Luc generate?

Nam Luc generates about 100 GWh of electricity per year.

How many homes can Nam Luc power?

Its output is enough to supply roughly 28,571 homes.

Who operates Nam Luc?

Nam Luc is operated by South East Asia Corporation.

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