133 solar installations registered with the Clean Energy Regulator · ranked bottom 50% in Victoria · data current as at 2026-05-15
Based on last week's Victoria grid mix (avg 980 gCO₂/kWh), Colac's 133 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 534th in Victoria out of 713 postcodes in the Clean Energy Regulator dataset, with 133 registered systems to date. 11 new systems were added in the past 12 months, with growth of 0% on the previous year — typical of a maturing market where most interested households have already installed.
Collectively, Colac's 133 solar systems avoid an estimated 1,593 tonnes of CO₂ per year — the equivalent of removing 759 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.