Australia’s World-Leading Solar Drives Residential Battery Boom

A collection of BYD batteries inside a garage of a home in Byron Bay, Australia.

Photographer: James D. Morgan/Getty Images

Australian households — already world leaders in the number of rooftop solar panels per capita — installed as many batteries in the second half of 2025 as they did during the previous five years combined.

More than 180,000 home battery units were sold in the six months, four times more than in the same period of the prior year, the Clean Energy Council said in a report. Rooftop solar installations slowed slightly, approaching “critical mass” with panels on almost a third of homes, according to the industry body, further pushing the network away from centralized power generation.