In Wollongong, compare a battery’s usable capacity, power output, warranty, expected cycling and compatibility with your existing solar system, rather than choosing on headline capacity alone. Your installer should assess your household’s electricity use, Endeavour Energy network requirements, roof shading and whether time-of-use tariffs make storing solar worthwhile. Federal battery incentives may reduce the upfront price for eligible systems, but eligibility and the final discount depend on the system, installer and current program rules. Obtain several quotes from accredited installers, check the battery’s placement and coastal-environment suitability, and ask your insurer whether installation affects your policy.