Household solar battery installations jumped four-fold in late 2025, driven by federal and state government incentives, a new report shows.
Solar battery installations in Australia increased four-fold in the second half of 2025 compared with the same period a year earlier, according to a new report from the Clean Energy Council.
The council’s rooftop solar and storage report found more than 450,000 home batteries had been installed nationwide by the end of 2025.
More than 139,000 new rooftop solar systems were installed in the second half of the year, lifting the total number of Australian households with solar to 4.3 million.
Rooftop solar accounted for 14.2% of electricity supplied to the grid in 2025, almost double its share in 2020.
Clean Energy Council chief executive Jackie Trad said the surge reflected the impact of incentives including the federal Cheaper Home Batteries program, alongside state-based schemes in New South Wales and Western Australia.
She said rooftop solar was now Australia’s largest power station, easing pressure on power bills by reducing reliance on gas and coal.
Climate and energy minister Chris Bowen told parliament this week that more than 218,000 home batteries had already been installed under the federal subsidy, with numbers expected to rise to two million by 2030 following an expansion announced in December.
