Search for local installers with relevant industry accreditation, then request at least two or three written quotes based on an onsite assessment. Compare the system size, panel and inverter brands, estimated generation, price after any eligible STC discount, installation inclusions, warranties and after-sales support. Check the installer’s business details and reviews, and ask who will perform the electrical work. Local availability can vary, so confirm proposed equipment and savings with the installer, and consider advice from a licensed electrician before signing.