1,856 solar installations registered with the Clean Energy Regulator · ranked top 50% in South Australia · data current as at 2026-05-15
Based on last week's South Australia grid mix (avg 370 gCO₂/kWh), Mount Gambier's 1,856 solar systems typically avoid around 5.25 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Mount Gambier sits in the top third of South Australia for solar uptake, ranking 100th in the state out of 347 postcodes in the Clean Energy Regulator dataset. Growth has been strong, with 103 new systems installed in the past 12 months — a 49% increase on the previous year, making Mount Gambier one of South Australia's faster-growing solar postcodes.
Collectively, Mount Gambier's 1,856 solar systems avoid an estimated 8,392 tonnes of CO₂ per year — the equivalent of removing 3,996 cars from the road. This is estimated using South Australia's average grid emissions intensity of 370 gCO₂/kWh, sourced from OpenElectricity, applied to an average system size of 9kW.