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Worsley Cogeneration

Gas power plant in Western Australia, Australia. Approximate location -33.2365, 116.0637.

GasWestern AustraliaAustraliaCCGT · HRSG

Worsley Cogeneration is a 106 MW gas power station in Western Australia, Australia. It is operated by Worsley Alumina Pty Ltd. Based on its capacity (estimated), it can supply roughly 119k homes (estimated). It ranks #179 of 536 Australia power plants by installed capacity. Commissioned in 2009, it is around 17 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).

106Legacy source-record capacity
1HRSG unit(s)
119,386homes powered (est.)
2009commissioned (~17 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id AUS0000217.

Data status

Known data

FacilityWorsley Cogeneration WRI
CountryAustralia · Western Australia WRI
Coordinates-33.2365, 116.0637 WRI
FuelGas WRI
MW installed capacity106 MW WRI source record; scope not independently normalised
OwnerWorsley Alumina Pty Ltd WRI
Commissioned2009 WRI
TechnologyCCGT · HRSG WRI

Calculated from dataset

CO₂ emissions167,141 t CO₂/yr calculated
Capacity rank in country#179 of 536 calculated
Fuel-specific rank in country#82 of 163 calculated
Capacity vs country/fuel peers1.00× · 106 MW median · 163 peers calculated
Homes-powered equivalent119,386 calculated
Climate15.6°C · HDD 1,171 derived from coordinates
Environmental severityC5 · 43/100 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 120 MW for Worsley Refinery 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: B_SCOPE_PARENT_COMPLEX - recommended action: build_parent_complex_model - confidence: not_comparable_without_scope. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

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 106 MW, Worsley Cogeneration is around 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.

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

15.6°Cannual mean temp
1,171heating degree-days (base 18°C)
291cooling degree-days (base 18°C)
262 melevation

Monthly mean temperature

J: 21 °CJF: 22 °CFM: 20 °CMA: 17 °CAM: 14 °CMJ: 12 °CJJ: 11 °CJA: 11 °CAS: 12 °CSO: 14 °CON: 16 °CND: 19 °CD22 °C

Heating degree-days here run 52% 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: 28/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~0% 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)
43/100environmental-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 #82 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 -33.2365, 116.0637 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Worsley Cogeneration?

Worsley Cogeneration is a 106 MW source-record gas power plant in Western Australia, Australia, commissioned in 2009.

How many homes can Worsley Cogeneration power?

Its output is enough to supply roughly 119,386 homes (estimated).

Who operates Worsley Cogeneration?

Worsley Cogeneration is operated by Worsley Alumina Pty Ltd.

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