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Son Dong

Coal power plant in Quang Ninh, Vietnam. Approximate location 21.1793, 106.78.

CoalQuang NinhVietnamsubcritical

Son Dong is a 220 MW coal power station in Quang Ninh, Vietnam. It is operated by Vinacomin. Based on its capacity (estimated), it can supply roughly 275k homes (estimated). It ranks #104 of 298 Vietnam power plants by installed capacity. Commissioned in 2009, it is around 17 years old — relatively modern. In context, coal supplies about 48.1% of Vietnam's electricity; the national grid averages 461 gCO₂/kWh (45.4% low-carbon) (2025).

220Source-backed capacity
275,314homes powered (est.)
2009commissioned (~17 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1030772.

Data status

Known data

FacilitySon Dong WRI
CountryVietnam · Quang Ninh WRI
Coordinates21.1793, 106.78 WRI
FuelCoal WRI
MW installed capacity220 MW WRI source record; scope not independently normalised
OwnerVinacomin WRI
Commissioned2009 WRI
Technologysubcritical WRI

Calculated from dataset

CO₂ emissions963,600 t CO₂/yr calculated
Capacity rank in country#104 of 298 calculated
Fuel-specific rank in country#40 of 51 calculated
Capacity vs country/fuel peers0.34× · 650 MW median · 51 peers calculated
Homes-powered equivalent275,314 calculated
Climate22.4°C · HDD 168 derived from coordinates
Environmental severityC5 · 48/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

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

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM tracker 2026 (location L100000104302); fuel: WRI source-record fuel

In context: how this plant compares

At 220 MW, Son Dong is below the median coal plant in Vietnam (650 MW). Technically it is described as subcritical. Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Capacity vs largest coal plants in Vietnam

Song Hau Thermal Power Plant: 5,200 MW5kSong Hau T…Dung Quat Economic Zone power station: 4,400 MW4kDung Quat …Kien Luong power station: 4,400 MW4kKien Luong…Long Phu Power Centre: 4,320 MW4kLong Phu P…Son My power station: 3,600 MW4kSon My pow…Binh Dinh power station: 3,200 MW3kBinh Dinh …Van Phong power station: 2,752 MW3kVan Phong …Phu Yen power station: 2,400 MW2kPhu Yen po…

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

Owner

Operated by Vinacomin.

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a humid subtropical (dry winter) climate (Köppen Cwa) — Northern Hemisphere, latitude 21.2°N — which shapes how much energy it can produce and how its output varies through the year.

22.4°Cannual mean temp
168heating degree-days (base 18°C)
1,775cooling degree-days (base 18°C)
188 melevation

Monthly mean temperature

J: 15 °CJF: 16 °CFM: 19 °CMA: 22 °CAM: 26 °CMJ: 28 °CJJ: 28 °CJA: 27 °CAS: 26 °CSO: 24 °CON: 20 °CND: 17 °CD28 °C

Heating degree-days here run 93% 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: 16/100 — 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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
48/100environmental-severity index
12.5°Cseasonal temperature swing
34 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 #40 largest coal power plant of 51 in Vietnam by capacity.

Vietnam has 51 coal power plants in this dataset, together about 64,702 MW of capacity.

Nearby power plants

Location

Coordinates 21.1793, 106.78 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Son Dong?

Son Dong is a 220 MW source-record coal power plant in Quang Ninh, Vietnam, commissioned in 2009.

How many homes can Son Dong power?

Its output is enough to supply roughly 275,314 homes (estimated).

Who operates Son Dong?

Son Dong is operated by Vinacomin.

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