In Australia, the main solar panel discount usually comes through Small-scale Technology Certificates (STCs), with the value depending on factors such as system size, location and installation date. An accredited installer normally manages the paperwork and applies the discount to the upfront price, but you should compare quotes carefully to see how it has been calculated. State and territory programs, including battery incentives, have separate rules, funding limits and eligibility requirements that can change. Check current information on energy.gov.au and confirm the details with an accredited installer before signing a contract.