Search for installers using your suburb or postcode, then compare several written quotes covering panels, inverters, warranties, installation costs and expected output. Check whether the installer uses appropriately licensed electricians and look for a current Clean Energy Council (CEC) accreditation where relevant to your system and rebate eligibility. Ask about local grid-connection requirements, roof suitability and after-sales support, as these can vary between areas and properties. Before signing, verify the quote and proposed equipment independently, and check your distribution network’s requirements and the latest guidance on energy.gov.au.