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579 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), Mackay's 579 solar systems typically avoid around 3.59 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Mackay ranks 262nd in Queensland for solar installations — in the middle tier of 449 postcodes tracked by the Clean Energy Regulator across the state. 48 new systems were added in the past 12 months, with growth of 2% on the previous year — typical of a maturing market where most interested households have already installed.
Collectively, Mackay's 579 solar systems avoid an estimated 5,731 tonnes of CO₂ per year — the equivalent of removing 2,729 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.