Australia's Rooftop Solar Capacity Surpasses 25GW in 2024

According to a report from the Clean Energy Council (CEC), Australia installed nearly 3GW of rooftop solar PV systems in 2024. In the second half of the year, the country added 1.6GW of rooftop solar capacity, bringing the total installed capacity to over 25.5GW by November 2024, marking a significant milestone. New South Wales was the leading state in installed capacity, reaching 952MW, followed by Queensland and Victoria with 800MW and 582MW, respectively.

The number of battery installations for rooftop solar systems in Australia continues to rise, with nearly 186,000 battery units now installed. Over 45,000 new units were added in the second half of 2025, a 55% increase compared to the same period in 2023. In the second half of 2024, 28.4% of rooftop solar installations were equipped with small-scale battery storage systems. The battery attachment rate peaked at a record 36% in October 2024, before dropping to 26% in December, compared to 15% in December 2023. Similar to rooftop solar installation trends, New South Wales, Victoria, and Queensland were the top states for battery installations in 2024.

Last year, the CEC called for a national strategy to promote the adoption of rooftop solar and home battery storage. The strategy aims to reduce Australian households' energy bills, potentially saving over AU$22 billion by 2050. According to the CEC's bi-annual Rooftop Solar and Storage Report, rooftop solar contributed 12.4% to Australia's total energy generation in 2024. In December 2024, the average unit capacity reached a record 11.08kW.