Coal power plant in Ilocos, Philippines. Approximate location 16.1243, 120.1012.
CoalIlocosPhilippinessubcritical
Sual power station is a 1,294 MW coal power station in Ilocos, Philippines. It is operated by SMC Global Power Holdings Corp.. Based on its capacity (estimated), it can supply roughly 1.6 million homes (estimated). It ranks #3 of 186 Philippines power plants by installed capacity. Commissioned in 1999, it is around 27 years old — long-established. In context, coal supplies about 58.7% of Philippines's electricity; the national grid averages 588 gCO₂/kWh (23.3% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1001872.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
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 L100000103190); fuel: WRI source-record fuel
At 1,294 MW, Sual power station is well above the median coal plant in Philippines (300 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.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by SMC Global Power Holdings Corp..
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 16.1°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.
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.
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.
The #1 largest coal power plant of 50 in Philippines by capacity.
Philippines has 50 coal power plants in this dataset, together about 18,322 MW of capacity.
Coordinates 16.1243, 120.1012 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Sual power station is a 1,294 MW source-record coal power plant in Ilocos, Philippines, commissioned in 1999.
Its output is enough to supply roughly 1,619,348 homes (estimated).
Sual power station is operated by SMC Global Power Holdings Corp..
