1,336 solar installations registered with the Clean Energy Regulator · ranked top 25% in Western Australia · data current as at 2026-06-15
Based on last week's Western Australia grid mix (avg 630 gCO₂/kWh), Merriwa's 1,336 solar systems typically avoid around 6.44 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 96th in the state out of 388 postcodes in the Clean Energy Regulator dataset. 123 new systems were installed in the past 12 months, a 19% increase on the previous year — steady growth consistent with continued community uptake.
The combined impact is substantial: Merriwa's solar community avoids an estimated 10,285 tonnes of CO₂ every year — equivalent to taking 4,898 cars off the road or powering around 2,057 average Australian homes with clean electricity. 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.