87 solar installations registered with the Clean Energy Regulator · ranked bottom 50% in Western Australia · data current as at 2026-08-15
Based on last week's Western Australia grid mix (avg 630 gCO₂/kWh), Postcode 6309's 87 solar systems typically avoid around 0.42 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Postcode 6309 ranks 242nd in Western Australia out of 388 postcodes in the Clean Energy Regulator dataset, with 87 registered systems to date. Growth has been strong, with 6 new systems installed in the past 12 months — a 100% 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 670 tonnes of CO₂ per year, equivalent to 319 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.