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3,989 solar installations registered with the Clean Energy Regulator · ranked top 25% in Queensland · data current as at 2026-04-03
Based on last week's Queensland grid mix (avg 810 gCO₂/kWh), Toowong's 3,989 solar systems typically avoid around 24.72 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Toowong sits in the top third of Queensland for solar uptake, ranking 99th in the state out of 449 postcodes in the Clean Energy Regulator dataset. 206 new systems were added in the past 12 months, with growth of 1% on the previous year — typical of a maturing market where most interested households have already installed.
The combined impact is substantial: Toowong's solar community avoids an estimated 39,485 tonnes of CO₂ every year — equivalent to taking 18,802 cars off the road or powering around 7,897 average Australian homes with clean electricity. This is estimated using Queensland's average grid emissions intensity of 810 gCO₂/kWh, sourced from OpenElectricity, applied to an average system size of 9kW.