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17,838 solar installations registered with the Clean Energy Regulator · ranked top 5% in Queensland · data current as at 2026-04-03
Based on last week's Queensland grid mix (avg 810 gCO₂/kWh), Toowoomba's 17,838 solar systems typically avoid around 110.53 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Toowoomba is one of Queensland's strongest solar communities, ranking 5th in the state — ahead of 99% of all Queensland postcodes tracked by the Clean Energy Regulator. New installations eased in the past 12 months (1,068 systems, 24% below the previous year), a natural slowdown after earlier periods of stronger uptake.
The combined impact is substantial: Toowoomba's solar community avoids an estimated 176,567 tonnes of CO₂ every year — equivalent to taking 84,080 cars off the road or powering around 35,313 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.