Start by checking the federal Small-scale Renewable Energy Scheme (STC) discount, then look for any state or territory programs available at your address. Compare the final installed price rather than the advertised rebate, as the value can depend on system size, location, installation date and market conditions. Check whether battery incentives are separate and whether you meet their technical or eligibility requirements. Ask licensed installers for itemised quotes and confirm current rules through your state government and energy.gov.au before making a decision.