When comparing solar quotes in Adelaide, check the system size, panel and inverter brands, estimated annual output, installation inclusions and warranty terms. Ask whether the price includes the federal Small-scale Renewable Energy Scheme discount, metering work and any switchboard or roof upgrades, as these can affect the final cost. Confirm the installer’s accreditation and compare expected performance using your household’s electricity usage, roof orientation and local shading. It is worth getting several itemised quotes and checking current incentives with energy.gov.au, while a retailer or licensed installer can confirm available tariffs and site-specific details.