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1,294 solar installations registered with the Clean Energy Regulator · ranked top 25% in Western Australia · data current as at 2026-04-03
Based on last week's Western Australia grid mix (avg 630 gCO₂/kWh), Merriwa's 1,294 solar systems typically avoid around 6.24 tonnes of CO₂ every hour during peak generation.
Grid intensity data: Open Electricity (openelectricity.org.au) · 7-day average · updates monthly
Merriwa sits in the top third of Western Australia for solar uptake, ranking 97th in the state out of 388 postcodes in the Clean Energy Regulator dataset. New installations eased in the past 12 months (101 systems, 1% below the previous year), a natural slowdown after earlier periods of stronger uptake.
Collectively, Merriwa's 1,294 solar systems avoid an estimated 9,962 tonnes of CO₂ per year — the equivalent of removing 4,744 cars from the road. This is estimated using Western Australia's average grid emissions intensity of 630 gCO₂/kWh, sourced from OpenElectricity, applied to an average system size of 9kW.