649 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 649 solar systems typically avoid around 4.02 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Toowoomba ranks 254th in Queensland for solar installations — in the middle tier of 449 postcodes tracked by the Clean Energy Regulator across the state. New installations eased in the past 12 months (38 systems, 19% below the previous year), a natural slowdown after earlier periods of stronger uptake.
Collectively, Toowoomba's 649 solar systems avoid an estimated 6,424 tonnes of CO₂ per year — the equivalent of removing 3,059 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.