For Perth homeowners, the main upfront help for solar panels is usually the federal Small-scale Technology Certificates (STCs) scheme, with the installer generally applying the discount to the quote. Eligibility and the value of the discount depend on factors such as system size, location, equipment and installation by an approved provider. Western Australia may also offer battery incentives from time to time, but availability, funding and conditions can change. Check current details on energy.gov.au and the WA Government energy website, then ask an accredited installer for an itemised quote showing any incentives separately.