Compare the system’s panel and battery capacity, usable storage, inverter compatibility, warranties, monitoring, installation costs and any ongoing fees. Ask the installer how the package will work with your household’s electricity use, export limits and possible time-of-use tariffs, rather than choosing only by advertised price. Rebates and incentives may be available in 2026, but eligibility and payment amounts can depend on the equipment, location and your circumstances, so check current information on energy.gov.au and with the relevant state authority. Use a qualified installer and obtain itemised quotes before signing.