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Cape Lambert

Gas power plant in Western Australia, Australia. Approximate location -20.6488, 117.1407.

GasWestern AustraliaAustraliaCCGT · HRSGCO₂ modelled

Cape Lambert is a 130 MW gas power station in Western Australia, Australia. It is operated by Rio Tinto Australia Pty Ltd. Based on reported annual generation of 156 GWh, it can supply roughly 45k homes. It ranks #147 of 536 Australia power plants by installed capacity. Commissioned in 2015, it is around 11 years old — relatively modern. Its modelled annual emissions are 299,870 t CO₂/yr (Climate TRACE), equivalent to about 70k cars driven for a year. In context, gas supplies about 16.4% of Australia's electricity; the national grid averages 525 gCO₂/kWh (38.6% low-carbon) (2025).

130Source-backed capacity
1HRSG unit(s)
156GWh reported / yr
44,542homes powered
299,870t CO₂ / yr (Climate TRACE)
2015commissioned (~11 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id AUS0000462.

Data status

Known data

FacilityCape Lambert WRI
CountryAustralia · Western Australia WRI
Coordinates-20.6488, 117.1407 WRI
FuelGas WRI
MW installed capacity130 MW WRI source record; scope not independently normalised
OwnerRio Tinto Australia Pty Ltd WRI
Commissioned2015 WRI
TechnologyCCGT · HRSG WRI
GWh reported / yr156 GWh/yr WRI
Observed long-tail demand3 GSC impressions (cape lambert) Google Search Console

Modelled source data

CO₂ emissions299,870 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#147 of 536 calculated
Fuel-specific rank in country#71 of 163 calculated
Capacity vs country/fuel peers1.23× · 106 MW median · 163 peers calculated
Homes-powered equivalent44,542 calculated from reported generation
Climate27.3°C · HDD 0 derived from coordinates
Environmental severityC5 · 62/100 derived from coordinates

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Capacity provenance

The public capacity above is a source-verified 2026 capacity claim: 130 MW for Cape Lambert power station.

Source: GEM tracker raw 2026. Scope: operating/nameplate; source-backed GEM tracker 2026 plant record. Confidence: high_source_row_verified_strict.

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 tracker 2026 (location L100000407543); fuel: WRI source-record fuel

In context: how this plant compares

At 130 MW, Cape Lambert is well above the median gas plant in Australia (106 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). 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.

~299,870 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

70kpassenger cars driven for a year
39khomes' yearly energy use
5.0 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

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 Rio Tinto Australia Pty Ltd.

Local climate & thermal context

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 20.6°S — which shapes how much energy it can produce and how its output varies through the year.

27.3°Cannual mean temp
0heating degree-days (base 18°C)
3,387cooling degree-days (base 18°C)
10 melevation

Monthly mean temperature

J: 33 °CJF: 32 °CFM: 32 °CMA: 29 °CAM: 24 °CMJ: 21 °CJJ: 20 °CJA: 22 °CAS: 25 °CSO: 28 °CON: 30 °CND: 32 °CD33 °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.

A gas turbine here also runs ~9% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

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 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
12.4°Cseasonal temperature swing
42 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 #71 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 -20.6488, 117.1407 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Cape Lambert?

Cape Lambert is a 130 MW source-record gas power plant in Western Australia, Australia, commissioned in 2015.

How much electricity does Cape Lambert generate?

Cape Lambert generates about 156 GWh of electricity per year.

How many homes can Cape Lambert power?

Its output is enough to supply roughly 44,542 homes.

Who operates Cape Lambert?

Cape Lambert is operated by Rio Tinto Australia Pty Ltd.

How much CO₂ does Cape Lambert emit?

Cape Lambert has modelled emissions of about 299,870 tonnes of CO₂ per year (Climate TRACE).

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