6,748 solar installations registered with the Clean Energy Regulator · ranked top 5% in Victoria · data current as at 2026-06-15
Based on last week's Victoria grid mix (avg 980 gCO₂/kWh), Sunbury's 6,748 solar systems typically avoid around 50.59 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Sunbury is one of Victoria's strongest solar communities, ranking 16th in the state — ahead of 98% of all Victoria postcodes tracked by the Clean Energy Regulator. Growth has been strong, with 830 new systems installed in the past 12 months — a 29% increase on the previous year, making Sunbury one of Victoria's faster-growing solar postcodes.
The combined impact is substantial: Sunbury's solar community avoids an estimated 80,813 tonnes of CO₂ every year — equivalent to taking 38,482 cars off the road or powering around 16,163 average Australian homes with clean electricity. This is estimated using Victoria's average grid emissions intensity of 980 gCO₂/kWh, sourced from OpenElectricity, applied to an average system size of 9kW.