For a solar battery in Melbourne, consider your household’s evening electricity use, solar system size, available space, battery warranty and whether the system can provide backup power. Melbourne’s winter conditions and changing electricity tariffs can affect the battery size and payback, so ask an accredited installer to model your actual usage rather than relying on a standard package. You may also compare retailer virtual power plant offers, export limits and current Victorian or federal incentives. Eligibility and savings depend on your circumstances and the relevant provider, so check official information through energy.gov.au and the Victorian Government.