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Australia’s World-Leading Boom In Rooftop Solar May Have Peaked

  • Household solar additions hit another record but may slide
  • Renewable electricity provided almost a third of total power

Australia’s love affair with solar may be waning after another record year of installations saw panels on a world-leading third of suitable homes. 

Households installed 3.2 gigawatts of rooftop solar in 2021, taking the total to more than 16 gigawatts across 3 million rooftop systems, the Australian Clean Energy Regulator said Thursday in a quarterly report. That surge helped lead the nation’s clean energy generation to an all-time high of 31.4% of all electricity produced, more than double the share just four years earlier.