A new report from the Clean Energy Council (CEC) shows that at the end of June there was a combined 26.8 GW of rooftop solar capacity deployed across 4.2 million homes and small businesses in Australia.
The CEC’s Rooftop Solar and Storage Report reveals that 115,584 rooftop solar units were installed nationwide in the first six months of the year, down 18% on the same period 12 months prior, while the total installed capacity of 1.1 GW was 15% lower than the 1.3 GW installed over the same period in 2024.
Despite the slowdown, the CEC said Australia is likely to exceed the Australian Energy Market Operator’s (AEMO) 2030 target for rooftop solar.
AEMO’s Integrated System Plan, which underpins the federal government’s 82% by 2030 renewable energy target, expects rooftop solar to contribute 36 GW to the National Electricity Market by the end of the decade.
The CEC said based on current trends, it expects the rollout of rooftop solar in Australia will reach 37.2 GW by June 2030, beating projections by 3.3%.
CEC Distributed Energy General Manager Con Hristodoulidis said the figures highlight the pivotal role of rooftop solar in keeping Australia’s energy transition on track.
“Australian consumers and small businesses are delivering the transition at breathtaking speed, turning suburban roofs into one of the biggest power stations in the country,” he said.
Rooftop solar contributed 12.8%, or 15,463 GWh, of Australia’s total energy generation in the first six months of the year, up from 11.5% in the same period 12 months prior.
The report also shows that Australians are embracing home batteries at record pace, with 85,000 battery units sold in the first half of 2025, representing a 191% increase from the same period last year.
The uptake has surged again since the introduction of the federal government’s Cheaper Home Batteries program with government data revealing more than 43,500 installations installed in July and August alone.
“Just as Australians have long understood the value of solar in lowering household energy bills, we are now seeing a surge in battery adoption, which allows households to store their own clean energy and maximise savings,” Hristodoulidis said.
Queensland added the most rooftop solar in the first half of 2025, with 326 MW of installed capacity, followed by New South Wales (NSW) and Victoria with 321 MW and 230 MW, respectively.
NSW has the highest level of total installed rooftop solar capacity in the nation at 7.5 GW, with Queensland second at 7.2 GW, ahead of Victoria with 5.4 GW. Queensland remains the state with the most installations, with 1.1 million.
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