Ulagunan

Oil power plant in East New Britain, Papua New Guinea. Approximate location -4.3557, 152.2454.

OilEast New BritainPapua New Guinea

Ulagunan is a 8 MW oil power plant in East New Britain, Papua New Guinea. It is operated by PNG Power Limited. Based on its capacity (estimated), it can supply roughly 6.3k homes (estimated). It ranks #12 of 15 Papua New Guinea power plants by installed capacity. In context, oil supplies about 57.1% of Papua New Guinea's electricity; the national grid averages 514 gCO₂/kWh (23.7% low-carbon) (2024).

8Legacy source-record capacity
6,307homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1022422.

Data status

Known data

FacilityUlagunan WRI
CountryPapua New Guinea · East New Britain WRI
Coordinates-4.3557, 152.2454 WRI
FuelOil WRI
MW installed capacity8 MW WRI source record; scope not independently normalised
OwnerPNG Power Limited WRI

Calculated from dataset

CO₂ emissions16,556 t CO₂/yr calculated
Capacity rank in country#12 of 15 calculated
Fuel-specific rank in country#6 of 7 calculated
Capacity vs country/fuel peers0.53× · 16 MW median · 7 peers calculated
Homes-powered equivalent6,307 calculated
Climate26.3°C · HDD 0 derived from coordinates
Environmental severityC4 · 41/100 derived from coordinates

Not available

CommissionedNot available not in dataset
TechnologyNot 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: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 8 MW, Ulagunan is below the median oil plant in Papua New Guinea (16 MW). Oil-fired plants burn heavy fuel oil or diesel, usually as peaking or backup capacity on islands and grids without gas pipelines; high fuel cost keeps their utilisation low.

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

Capacity vs largest oil plants in Papua New Guinea

Kanudi: 58 MW58KanudiOk Tedi: 45 MW45Ok TediLae: 30 MW30LaeTabubil: 16 MW16TabubilPorgera: 13 MW13PorgeraUlagunan: 8 MW8UlagunanTolkuma: 4 MW4Tolkuma

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

Owner

Operated by PNG Power Limited.

Local climate & thermal context

This oil plant burns oil or diesel to drive turbines or reciprocating engines. It sits in a tropical rainforest climate (Köppen Af) — Southern Hemisphere, latitude 4.4°S — which shapes how much energy it can produce and how its output varies through the year.

26.3°Cannual mean temp
0heating degree-days (base 18°C)
3,045cooling degree-days (base 18°C)
139 melevation

Monthly mean temperature

J: 26 °CJF: 26 °CFM: 26 °CMA: 26 °CAM: 26 °CMJ: 26 °CJJ: 26 °CJA: 26 °CAS: 26 °CSO: 26 °CON: 27 °CND: 26 °CD27 °C

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

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)
41/100environmental-severity index
1.0°Cseasonal temperature swing
56 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 #6 largest oil power plant of 7 in Papua New Guinea by capacity.

Papua New Guinea has 7 oil power plants in this dataset, together about 174 MW of capacity.

Nearby power plants

Location

Coordinates -4.3557, 152.2454 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Ulagunan?

Ulagunan is a 8 MW source-record oil power plant in East New Britain, Papua New Guinea.

How many homes can Ulagunan power?

Its output is enough to supply roughly 6,307 homes (estimated).

Who operates Ulagunan?

Ulagunan is operated by PNG Power Limited.

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