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2,866 solar installations registered with the Clean Energy Regulator · ranked top 25% in New South Wales · data current as at 2026-04-03
Based on last week's New South Wales grid mix (avg 790 gCO₂/kWh), Newcastle's 2,866 solar systems typically avoid around 17.32 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Newcastle sits in the top third of New South Wales for solar uptake, ranking 115th in the state out of 721 postcodes in the Clean Energy Regulator dataset. New installations eased in the past 12 months (174 systems, 24% below the previous year), a natural slowdown after earlier periods of stronger uptake.
The combined impact is substantial: Newcastle's solar community avoids an estimated 27,668 tonnes of CO₂ every year — equivalent to taking 13,175 cars off the road or powering around 5,534 average Australian homes with clean electricity. This is estimated using New South Wales's average grid emissions intensity of 790 gCO₂/kWh, sourced from OpenElectricity, applied to an average system size of 9kW.