Grid Connected Home Batteries in Western Australia, Australia

Western Australia is beginning to see steady growth in home battery adoption, with 21,308 battery systems installed across the state. These systems provide a combined 108,731 kW of power capacity and 117,231 kWh of storage capacity, supporting households that want to make better use of their renewable energy. While this currently represents only a small proportion of dwellings, the growth trajectory highlights a strong future for battery technology in WA. The average battery system in Western Australia provides 5.10 kW of power and 5.50 kWh of storage. This allows residents to capture excess solar energy produced during the day and use it in the evening when demand and electricity prices are higher. Batteries also add resilience by providing backup power during grid outages, which is particularly valuable in remote and regional areas of the state.

WA already has a strong solar foundation, with 526,204 rooftop solar systems installed across homes and businesses, delivering 2,829 MW of capacity. Pairing these systems with batteries is the natural next step, enabling households to increase self-consumption of renewable energy, reduce reliance on the grid, and further cut carbon emissions. From Perth and its suburbs to regional communities across the Pilbara, Kimberley, and South West, batteries are helping households take greater control of their energy use. As installation costs continue to fall and incentives expand, battery adoption in Western Australia is set to accelerate, driving the state toward a more sustainable and self-sufficient energy future.