687 solar installations registered with the Clean Energy Regulator · ranked bottom 50% in Queensland · data current as at 2026-05-15
Based on last week's Queensland grid mix (avg 810 gCO₂/kWh), Toowoomba's 687 solar systems typically avoid around 4.26 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Toowoomba ranks 249th in Queensland for solar installations — in the middle tier of 449 postcodes tracked by the Clean Energy Regulator across the state. Growth has been strong, with 50 new systems installed in the past 12 months — a 35% increase on the previous year, making Toowoomba one of Queensland's faster-growing solar postcodes.
Collectively, Toowoomba's 687 solar systems avoid an estimated 6,800 tonnes of CO₂ per year — the equivalent of removing 3,238 cars from the road. 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.