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71 solar installations registered with the Clean Energy Regulator · ranked bottom 50% in Victoria · data current as at 2026-04-03
Based on last week's Victoria grid mix (avg 980 gCO₂/kWh), Colac's 71 solar systems typically avoid around 0.53 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Colac ranks 606th in Victoria out of 713 postcodes in the Clean Energy Regulator dataset, with 71 registered systems to date. Growth has been strong, with 4 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.
Colac's solar systems avoid an estimated 850 tonnes of CO₂ per year, equivalent to 405 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.