Check the installer’s current Clean Energy Council accreditation and verify any required state or territory electrical licence before signing a contract. Ask for a detailed written quote covering system design, equipment models, warranties, installation work, approvals and expected ongoing costs. An accredited installer may be required for Small-scale Technology Certificate eligibility, but accreditation does not guarantee a particular system performance or workmanship outcome. You can check the installer through the Clean Energy Council’s official resources and seek advice from your state electrical regulator if you have concerns.