Australia’s main solar rebate is the federal Small-scale Renewable Energy Scheme, which usually provides Small-scale Technology Certificates (STCs) for eligible systems rather than a direct cash payment. An accredited installer generally handles the certificates and passes their estimated value on as an upfront discount, so the amount can vary with system size, location, installation date and certificate market conditions. Eligibility depends on the equipment, installer and current scheme rules, and batteries may have separate requirements. Check the Clean Energy Regulator and energy.gov.au, and ask your installer to show how any STC discount is calculated.