Solar battery storage can help homeowners use more of their solar power after dark, reduce grid purchases and gain some protection from changing electricity prices. Whether it is worthwhile depends on your daytime energy use, battery size, electricity tariff, export payments, installation costs and how long you expect to stay in the home. Available rebates or finance may vary by state and circumstances, and any eligibility or savings outcome should be checked with the relevant government department or energy provider. Ask an accredited solar battery installer for an independently itemised quote and realistic payback estimates.