3,304 solar installations registered with the Clean Energy Regulator · ranked top 10% in Victoria · data current as at 2026-05-15
Based on last week's Victoria grid mix (avg 980 gCO₂/kWh), Carrum Downs's 3,304 solar systems typically avoid around 24.77 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Carrum Downs is one of Victoria's strongest solar communities, ranking 66th in the state — ahead of 91% of all Victoria postcodes tracked by the Clean Energy Regulator. New installations eased in the past 12 months (128 systems, 44% below the previous year), a natural slowdown after earlier periods of stronger uptake.
The combined impact is substantial: Carrum Downs's solar community avoids an estimated 39,568 tonnes of CO₂ every year — equivalent to taking 18,842 cars off the road or powering around 7,914 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.