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1,505 solar installations registered with the Clean Energy Regulator · ranked top 50% in Victoria · data current as at 2026-04-03
Based on last week's Victoria grid mix (avg 980 gCO₂/kWh), Castlemaine's 1,505 solar systems typically avoid around 11.28 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Castlemaine sits in the top third of Victoria for solar uptake, ranking 186th in the state out of 713 postcodes in the Clean Energy Regulator dataset. 99 new systems were installed in the past 12 months, a 16% increase on the previous year — steady growth consistent with continued community uptake.
The combined impact is substantial: Castlemaine's solar community avoids an estimated 18,024 tonnes of CO₂ every year — equivalent to taking 8,583 cars off the road or powering around 3,605 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.