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Kwinana Cogeneration

Gas power plant in Western Australia, Australia. Approximate location -32.2225, 115.7661.

GasWestern AustraliaAustraliaCO₂ reported

Kwinana Cogeneration is a 123 MW gas power station in Western Australia, Australia. It is operated by International Power Plc & Mitsui & Co Ltd & Transfield. Based on reported annual generation of 859 GWh, it can supply roughly 245,514 homes. It ranks #132 of 512 Australia power plants by installed capacity. Its measured emissions of 288,540 t CO₂/yr (Climate TRACE) are equivalent to about 67,259 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).

123MW installed capacity
859GWh reported / yr
245,514homes powered
288,540t CO₂ / yr (Climate TRACE)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id AUS0000193.

288,540 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

67,259passenger cars driven for a year
37,629homes' yearly energy use
4,809,000tree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions reported to Climate TRACE.

Reported generation trend

2013: 812 GWh20132014: 884 GWh20142015: 892 GWh20152016: 878 GWh20162017: 855 GWh20172018: 859 GWh2018892 GWh

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

Owner

Operated by International Power Plc & Mitsui & Co Ltd & Transfield.

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 32.2°S — which shapes how much energy it can produce and how its output varies through the year.

18.3°Cannual mean temp
650heating degree-days (base 18°C)
756cooling degree-days (base 18°C)
23 melevation

Monthly mean temperature

J: 24 °CJF: 25 °CFM: 23 °CMA: 20 °CAM: 16 °CMJ: 14 °CJJ: 13 °CJA: 13 °CAS: 14 °CSO: 16 °CON: 19 °CND: 22 °CD25 °C

Heating degree-days here run 74% 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: 22/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

A gas turbine here also runs ~2% 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.

How it compares & nearby plants

The #56 largest gas power plant of 142 in Australia by capacity.

Australia has 142 gas power plants in this dataset, together about 21,303 MW of capacity.

Nearby power plants

Location

Coordinates -32.2225, 115.7661 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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