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Kemerton

Gas power plant in Western Australia, Australia. Approximate location -33.1633, 115.7805.

GasWestern AustraliaAustraliaOCGTCO₂ modelled

Kemerton is a 310 MW gas power station in Western Australia, Australia. It is operated by Transfield Services Infrastructure Fund. Based on reported annual generation of 70 GWh, it can supply roughly 20k homes. It ranks #76 of 536 Australia power plants by installed capacity. Commissioned in 2005, it is around 21 years old — relatively modern. Its modelled annual emissions are 447,250 t CO₂/yr (Climate TRACE), equivalent to about 104k 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).

310Source-backed capacity
70GWh reported / yr
19,857homes powered
447,250t CO₂ / yr (Climate TRACE)
2005commissioned (~21 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id AUS0000211.

Data status

Known data

FacilityKemerton WRI
CountryAustralia · Western Australia WRI
Coordinates-33.1633, 115.7805 WRI
FuelGas WRI
MW installed capacity310 MW WRI source record; scope not independently normalised
OwnerTransfield Services Infrastructure Fund WRI
Commissioned2005 WRI
TechnologyOCGT WRI
GWh reported / yr70 GWh/yr WRI

Modelled source data

CO₂ emissions447,250 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#76 of 536 calculated
Fuel-specific rank in country#35 of 163 calculated
Capacity vs country/fuel peers2.92× · 106 MW median · 163 peers calculated
Homes-powered equivalent19,857 calculated from reported generation
Climate16.5°C · HDD 970 derived from coordinates
Environmental severityC5 · 45/100 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.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 310 MW for Kemerton power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: A2_MEDIUM_REVIEW - recommended action: manual_source_check - confidence: medium. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

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 L100000405115); fuel: WRI source-record fuel

In context: how this plant compares

At 310 MW, Kemerton 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.

~447,250 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

104kpassenger cars driven for a year
58khomes' yearly energy use
7.5 milliontree seedlings grown 10 years to absorb it

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

Reported generation trend

2014: 79 GWh20142015: 84 GWh20152016: 120 GWh20162017: 108 GWh20172018: 70 GWh2018120 GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Transfield Services Infrastructure Fund.

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-summer Mediterranean climate (Köppen Csa) — Southern Hemisphere, latitude 33.2°S — which shapes how much energy it can produce and how its output varies through the year.

16.5°Cannual mean temp
970heating degree-days (base 18°C)
403cooling degree-days (base 18°C)
181 melevation

Monthly mean temperature

J: 22 °CJF: 22 °CFM: 21 °CMA: 18 °CAM: 15 °CMJ: 12 °CJJ: 12 °CJA: 12 °CAS: 13 °CSO: 14 °CON: 17 °CND: 20 °CD22 °C

Heating degree-days here run 61% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 26/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~1% 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)
45/100environmental-severity index
10.8°Cseasonal temperature swing
10 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 #35 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 -33.1633, 115.7805 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Kemerton?

Kemerton is a 310 MW source-record gas power plant in Western Australia, Australia, commissioned in 2005.

How much electricity does Kemerton generate?

Kemerton generates about 70 GWh of electricity per year.

How many homes can Kemerton power?

Its output is enough to supply roughly 19,857 homes.

Who operates Kemerton?

Kemerton is operated by Transfield Services Infrastructure Fund.

How much CO₂ does Kemerton emit?

Kemerton has modelled emissions of about 447,250 tonnes of CO₂ per year (Climate TRACE).

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