Solar Power in Western Australia, Australia

Western Australia is a national leader in solar adoption, with 526,204 rooftop solar PV systems installed across the state. These systems contribute a substantial 2,829.011 MW of installed solar capacity, helping households and businesses take control of their energy costs while supporting Australia’s transition to renewables. The average system size in WA is 5.38 kW, making solar a practical solution for families looking to offset electricity bills and reduce their carbon footprint. From Perth’s metropolitan suburbs to regional communities across the Pilbara, Kimberley, and the South West, solar energy is reshaping how West Australians power their homes and businesses.

Western Australia benefits from some of the highest solar irradiation levels in the world, making it an ideal environment for solar power generation. This strong natural advantage, combined with government rebates and falling solar installation costs, has driven rapid uptake across the state. More households are also beginning to pair their panels with battery storage, enabling them to capture excess solar power during the day for use at night. With ongoing investment in renewable energy and grid modernisation, solar power in Western Australia will continue to grow. The state’s leadership in rooftop solar not only delivers financial savings to residents but also plays a critical role in shaping a cleaner, more sustainable energy future for the entire country.