Sihanoukville CIIDG power station is a 405 MW coal power station in Preah Sihanouk, Cambodia. It is operated by CIIDG Erdos Hongjun Electric Power Co.. Based on its capacity (estimated), it can supply roughly 507k homes (estimated). It ranks #6 of 27 Cambodia power plants by installed capacity. Commissioned in 2015, it is around 11 years old — relatively modern. In context, coal supplies about 56.6% of Cambodia's electricity; the national grid averages 499 gCO₂/kWh (40.9% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1075837.
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
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000100158; fuel: WRI GPPD
In context: how this plant compares
At 405 MW, Sihanoukville CIIDG power station is around the median coal plant in Cambodia (405 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.
Key facts
- Share of Cambodia coal capacity
- 7.6% of 5,360 MW across 8 plants in this dataset
- Age among peers
- 1 of 4 dated coal plants in Cambodia is older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest coal plants in Cambodia
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by CIIDG Erdos Hongjun Electric Power Co..
Local climate & thermal context
This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a tropical monsoon climate (Köppen Am) — Northern Hemisphere, latitude 10.7°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
This site has effectively no heating season (tropical/equatorial climate), so winter heat loss is not the driver here. The thermal concern shifts to year-round process heat and humidity/heat-driven corrosion of hot equipment.
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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion 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 #4 largest coal power plant of 8 in Cambodia by capacity.
Cambodia has 8 coal power plants in this dataset, together about 5,360 MW of capacity.
Nearby power plants
- Sihanoukville CEL power station · Coal · 250 MW · Preah Sihanouk
- Sihanoukville SEZ power station · Coal · 100 MW · Sihanoukville
- Sihanoukville Diesel · Oil · 5 MW · Preah Sihanouk
- Sihanoukville CSG power station · Coal · 1,200 MW · Cambodia
- EDC Combined Cycle power station · Gas · 4,800 MW · Cambodia
- Kampot power station · Coal · 540 MW · Sihanoukville
Location
Coordinates 10.7326, 103.5835 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Sihanoukville CIIDG power station?
Sihanoukville CIIDG power station is a 405 MW coal power plant in Preah Sihanouk, Cambodia, commissioned in 2015.
Who operates Sihanoukville CIIDG power station?
Sihanoukville CIIDG power station is operated by CIIDG Erdos Hongjun Electric Power Co..