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6,557 solar installations registered with the Clean Energy Regulator · ranked top 5% in Victoria · data current as at 2026-04-03
Based on last week's Victoria grid mix (avg 980 gCO₂/kWh), Sunbury's 6,557 solar systems typically avoid around 49.16 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 18th in the state — ahead of 97% of all Victoria postcodes tracked by the Clean Energy Regulator. 742 new systems were installed in the past 12 months, a 17% increase on the previous year — steady growth consistent with continued community uptake.
The combined impact is substantial: Sunbury's solar community avoids an estimated 78,525 tonnes of CO₂ every year — equivalent to taking 37,393 cars off the road or powering around 15,705 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.