A useful solar panels checklist should cover your household electricity use, roof condition and orientation, available space, shading, switchboard capacity and any planned changes such as a battery or electric vehicle. Compare quotes for system size, panel and inverter warranties, monitoring, installation details, approvals, grid connection and after-sales support, rather than focusing only on price. Ask whether the installer is appropriately accredited and how any applicable rebates or Small-scale Technology Certificates will be handled, as eligibility and value can vary. Check the final proposal with the installer and your energy retailer before signing.