134 solar installations registered with the Clean Energy Regulator · ranked bottom 50% in Victoria · data current as at 2026-06-15
Based on last week's Victoria grid mix (avg 980 gCO₂/kWh), Colac's 134 solar systems typically avoid around 1.00 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Colac ranks 533rd in Victoria out of 713 postcodes in the Clean Energy Regulator dataset, with 134 registered systems to date. Growth has been strong, with 12 new systems installed in the past 12 months — a 33% increase on the previous year, making Colac one of Victoria's faster-growing solar postcodes.
Collectively, Colac's 134 solar systems avoid an estimated 1,605 tonnes of CO₂ per year — the equivalent of removing 764 cars from the road. 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.