A Clean Energy Council (CEC) accredited installer is a qualified solar professional who has met the CEC’s training and compliance requirements for eligible installations. Using an appropriately accredited installer may be required for Small-scale Technology Certificates (STCs), which can reduce the upfront cost of an eligible system, subject to current scheme rules. Accreditation does not guarantee quality, workmanship or a particular rebate outcome, so compare written quotes, warranties, licences and insurance. You can check an installer’s current details through the CEC’s official installer directory and confirm scheme requirements on energy.gov.au.