79 solar installations registered with the Clean Energy Regulator · ranked bottom 50% in Queensland · data current as at 2026-06-15
Based on last week's Queensland grid mix (avg 810 gCO₂/kWh), Mackay's 79 solar systems typically avoid around 0.49 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Mackay ranks 384th in Queensland out of 449 postcodes in the Clean Energy Regulator dataset, with 79 registered systems to date. New installations eased in the past 12 months (3 systems, 62% below the previous year), a natural slowdown after earlier periods of stronger uptake.
Mackay's solar systems avoid an estimated 782 tonnes of CO₂ per year, equivalent to 372 fewer cars on the road annually. 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.