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83 solar installations registered with the Clean Energy Regulator · ranked bottom 50% in Western Australia · data current as at 2026-04-03
Based on last week's Western Australia grid mix (avg 630 gCO₂/kWh), Postcode 6309's 83 solar systems typically avoid around 0.40 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Postcode 6309 ranks 243rd in Western Australia out of 388 postcodes in the Clean Energy Regulator dataset, with 83 registered systems to date. Growth has been strong, with 3 new systems installed in the past 12 months — a 50% increase on the previous year, making Postcode 6309 one of Western Australia's faster-growing solar postcodes.
Postcode 6309's solar systems avoid an estimated 639 tonnes of CO₂ per year, equivalent to 304 fewer cars on the road annually. This is estimated using Western Australia's average grid emissions intensity of 630 gCO₂/kWh, sourced from OpenElectricity, applied to an average system size of 9kW.