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645 solar installations registered with the Clean Energy Regulator · ranked bottom 50% in Queensland · data current as at 2026-04-03
Based on last week's Queensland grid mix (avg 810 gCO₂/kWh), Toowoomba's 645 solar systems typically avoid around 4.00 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 (39 systems, 15% below the previous year), a natural slowdown after earlier periods of stronger uptake.
Collectively, Toowoomba's 645 solar systems avoid an estimated 6,384 tonnes of CO₂ per year — the equivalent of removing 3,040 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.