The Clean Energy Council (CEC) directory can help you find accredited installers, but accreditation is not an endorsement or guarantee of workmanship, pricing or service. Compare several written quotes covering system design, panel and inverter brands, warranties, installation timeframes, monitoring and after-sales support. Check that the business holds the appropriate state or territory electrical licence and ask for recent local references. You can verify accreditation through the CEC website, then review the contract carefully and seek independent advice if you are unsure.