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Barrow Island LNG power station

Gas power plant in Western Australia, Australia. Approximate location -20.77708, 115.461583.

GasWestern AustraliaAustraliaOCGT

Barrow Island LNG power station is a 590 MW gas power station in Western Australia, Australia. It is operated by Osaka Gas Co Ltd [1%]; Chevron Corp [47%]; Exxon Mobil Corp [25%]. Based on its capacity (estimated), it can supply roughly 665k homes (estimated). It ranks #35 of 536 Australia power plants by installed capacity. Commissioned in 2015, it is around 11 years old — relatively modern. In context, gas supplies about 16.4% of Australia's electricity; the national grid averages 525 gCO₂/kWh (38.6% low-carbon) (2025).

590MW installed capacity
664,508homes powered (est.)
2015commissioned (~11 yrs)

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

Data status

Known data

FacilityBarrow Island LNG power station GEM-GOGPT
CountryAustralia · Western Australia GEM-GOGPT
Coordinates-20.77708, 115.461583 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity590 MW GEM · 2026 · L100000407540; operating plant capacity
OwnerOsaka Gas Co Ltd [1%]; Chevron Corp [47%]; Exxon Mobil Corp [25%] GEM-GOGPT
Commissioned2015 GEM-GOGPT
TechnologyOCGT GEM-GOGPT

Calculated from dataset

CO₂ emissions930,312 t CO₂·a⁻¹ calculated
Capacity rank in country#35 / 536 calculated
Fuel-specific rank in country#12 / 163 calculated
Capacity vs country/fuel peers5.57× · 106 MW · n=163 calculated
Homes-powered equivalent664,508 calculated
Environmental severityC5 · 62/100 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 · 2026 · L100000407540; fuel: GEM GOGPT

In context: how this plant compares

At 590 MW, Barrow Island LNG power station is well above the median gas plant in Australia (106 MW). Technically it is described as OCGT. Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

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

Capacity vs largest gas plants in Australia

Tomago Aluminium Smelter: 810 MW810Tomago Alu…Torrens Island B: 800 MW800Torrens Is…Marulan power station: 800 MW800Marulan po…Tallawarra: 796 MW796TallawarraKerrawary Power Station: 770 MW770Kerrawary …Callide Gas Peaker Power Plant: 750 MW750Callide Ga…Colongra: 724 MW724ColongraUranquinty: 664 MW664Uranquinty

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

Owner

Operated by Osaka Gas Co Ltd [1%]; Chevron Corp [47%]; Exxon Mobil Corp [25%].

Climate zone & how it works

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a hot desert climate (Köppen BWh) — Southern Hemisphere, latitude 20.8°S — which shapes how much energy it can produce and how its output varies through the year.

~24°Ctypical annual mean
~34°Ctypical warm-season mean
Hot desert: 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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
62/100environmental-severity index
11.9°Cseasonal temperature swing
22 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 #12 largest gas power plant of 163 in Australia by capacity.

Australia has 163 gas power plants in this dataset, together about 29,942 MW of capacity.

Nearby power plants

Location

Coordinates -20.77708, 115.461583 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Barrow Island LNG power station?

Barrow Island LNG power station is a 590 MW gas power plant in Western Australia, Australia, commissioned in 2015.

How many homes can Barrow Island LNG power station power?

Its output is enough to supply roughly 664,508 homes (estimated).

Who operates Barrow Island LNG power station?

Barrow Island LNG power station is operated by Osaka Gas Co Ltd [1%]; Chevron Corp [47%]; Exxon Mobil Corp [25%].

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