Look for a Melbourne solar installer with Clean Energy Council accreditation, appropriate electrical licences, strong recent reviews and clear warranty terms. Get at least three written quotes that detail the system design, panels, inverter, installation work, monitoring, expected output and all costs. Ask whether the quote includes any small-scale technology certificate (STC) discount and have the installer explain how eligibility and pricing are determined. You can compare providers through the Clean Energy Council and confirm rebate information on the official energy.gov.au website.