On the Central Coast, compare your household’s evening electricity use, existing solar system, usable battery capacity, warranty and your retailer’s time-of-use tariffs. A battery may help you use more of your own solar and reduce grid purchases, but the financial result depends on your consumption, export rates, system size and installation costs. Ask several Clean Energy Council-accredited installers for itemised quotes, including switchboard or other upgrade work. Rebates and financing options can change, so check current NSW and Australian Government information and confirm eligibility with the relevant provider before signing.