The Clean Energy Council installer guide can help you compare installers, understand accreditation, and identify questions to ask before signing a contract. Check that the installer holds the relevant electrical and solar licences in your state or territory, and confirm any CEC accreditation through the current CEC website. Get detailed written quotes covering system design, equipment, warranties, installation, grid connection and after-sales support. You should also compare several providers and check rebate or certificate arrangements with the installer and the relevant government or energy authority.