77 solar installations registered with the Clean Energy Regulator · ranked bottom 50% in Victoria · data current as at 2026-08-15
Based on last week's Victoria grid mix (avg 980 gCO₂/kWh), Colac's 77 solar systems typically avoid around 0.58 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Colac ranks 598th in Victoria out of 713 postcodes in the Clean Energy Regulator dataset, with 77 registered systems to date. Growth has been strong, with 10 new systems installed in the past 12 months — a 67% increase on the previous year, making Colac one of Victoria's faster-growing solar postcodes.
Colac's solar systems avoid an estimated 922 tonnes of CO₂ per year, equivalent to 439 fewer cars on the road annually. 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.