Solar battery storage can help use more of your rooftop solar at night, reduce grid purchases and provide limited backup during outages, depending on the system design. In 2026, battery rebates and finance programs may be available, but eligibility, approved products and payment amounts depend on the relevant government program and your circumstances. Compare the battery’s usable capacity, power output, warranty, safety features and expected payback, as well as your electricity tariff and household usage. Ask an accredited installer for a site-specific design and check current information on energy.gov.au.