When comparing solar quotes in Melbourne, check that each proposal lists the system size, panel and inverter brands, installation costs, warranties and any battery options. Ask installers to explain how your roof orientation, shading, electricity use and local network export limits affect the design and expected generation. Quotes may show an upfront discount linked to Small-scale Technology Certificates (STCs), but the value and eligibility depend on current rules and your circumstances. Compare several detailed quotes, check the installer’s credentials, and review the contract before signing; energy.gov.au can help explain current scheme information.