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Isabela power station

Coal power plant in Isabela, Philippines. Approximate location 16.94, 121.77.

CoalIsabelaPhilippinessubcritical

Isabela power station is a 100 MW coal power station in Isabela, Philippines. It is operated by PNOC Exploration Corp [100%]. Based on its capacity (estimated), it can supply roughly 125k homes (estimated). It ranks #101 of 186 Philippines power plants by installed capacity. In context, coal supplies about 58.7% of Philippines's electricity; the national grid averages 588 gCO₂/kWh (23.3% low-carbon) (2025).

100MW installed capacity
125,142homes powered (est.)

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

Data status

Known data

FacilityIsabela power station GEM-coal
CountryPhilippines · Isabela GEM-coal
Coordinates16.94, 121.77 GEM-coal
FuelCoal GEM-coal
MW installed capacity100 MW GEM GCPT; source record
OwnerPNOC Exploration Corp [100%] GEM-coal
Technologysubcritical GEM-coal

Calculated from dataset

CO₂ emissions438,000 t CO₂·a⁻¹ calculated
Capacity rank in country#101 / 186 calculated
Fuel-specific rank in country#39 / 50 calculated
Capacity vs country/fuel peers0.33× · 300 MW · n=50 calculated
Homes-powered equivalent125,142 calculated
Environmental severityC4 · 42/100 derived from coordinates

Not available

CommissionedNot available not in dataset
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 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: GEM GCPT; fuel: GEM GCPT

In context: how this plant compares

At 100 MW, Isabela power station is below 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.

Capacity vs largest coal plants in Philippines

Sual power station: 1,294 MW1kSual power…SMC Mariveles power station: 1,200 MW1kSMC Marive…Zest-O power station: 1,200 MW1kZest-O pow…Pagbilao power station: 1,155 MW1kPagbilao p…Quezon power station: 1,066 MW1kQuezon pow…Masinloc power station: 1,026 MW1kMasinloc p…Calaca power station: 900 MW900Calaca pow…Mariveles Power Plant: 652 MW652Mariveles …

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

Owner

Operated by PNOC Exploration Corp [100%].

Climate zone & how it works

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a tropical rainforest climate (Köppen Af) — Northern Hemisphere, latitude 16.9°N — which shapes how much energy it can produce and how its output varies through the year.

~26°Ctypical annual mean
~27°Ctypical warm-season mean
Tropical rainforest: warm all year, with distinct wet and dry seasons

Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

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 corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
42/100environmental-severity index
5.3°Cseasonal temperature swing
55 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 #39 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.

Nearby power plants

Location

Coordinates 16.94, 121.77 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Isabela power station?

Isabela power station is a 100 MW coal power plant in Isabela, Philippines.

How many homes can Isabela power station power?

Its output is enough to supply roughly 125,142 homes (estimated).

Who operates Isabela power station?

Isabela power station is operated by PNOC Exploration Corp [100%].

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