Solar rebates vary by location, system size, installation date and household circumstances. The federal Small-scale Renewable Energy Scheme (STCs) can reduce the upfront cost of eligible solar panels, while some states and territories offer separate battery or household energy programs. Compare the likely upfront discount, eligibility rules, deadlines, approved installers and any ongoing requirements—not just the advertised rebate amount. Your installer can explain how STCs are calculated, but confirm current state programs through your state or territory government and check official information on energy.gov.au.