4,629 solar installations registered with the Clean Energy Regulator · ranked top 15% in Western Australia · data current as at 2026-08-15
Based on last week's Western Australia grid mix (avg 630 gCO₂/kWh), Mirrabooka's 4,629 solar systems typically avoid around 22.31 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Mirrabooka is one of Western Australia's strongest solar communities, ranking 39th in the state — ahead of 90% of all Western Australia postcodes tracked by the Clean Energy Regulator. 272 new systems were added in the past 12 months, with growth of 5% on the previous year — typical of a maturing market where most interested households have already installed.
The combined impact is substantial: Mirrabooka's solar community avoids an estimated 35,637 tonnes of CO₂ every year — equivalent to taking 16,970 cars off the road or powering around 7,127 average Australian homes with clean electricity. 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.