Choose an installer who can assess your roof, shading, switchboard and coastal conditions, rather than relying on a standard package. Check the installer’s current Clean Energy Council accreditation, NSW licence details, insurance and customer reviews, then compare itemised quotes covering panels, inverter, mounting, warranties, monitoring and after-sales support. Ask whether they will arrange the grid connection with Endeavour Energy and explain any approvals or export limits. You can verify accreditation through the CEC directory and seek advice from a licensed electrician if you are unsure about the proposed system.