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1,965 solar installations registered with the Clean Energy Regulator · ranked top 25% in Victoria · data current as at 2026-04-03
Based on last week's Victoria grid mix (avg 980 gCO₂/kWh), Casterton's 1,965 solar systems typically avoid around 14.73 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Casterton sits in the top third of Victoria for solar uptake, ranking 137th in the state out of 713 postcodes in the Clean Energy Regulator dataset. New installations eased in the past 12 months (48 systems, 46% below the previous year), a natural slowdown after earlier periods of stronger uptake.
The combined impact is substantial: Casterton's solar community avoids an estimated 23,532 tonnes of CO₂ every year — equivalent to taking 11,206 cars off the road or powering around 4,706 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.