When comparing solar PV grant applications, check that each installer is SEAI-registered and that the proposed system meets the current grant requirements. Compare the panel and inverter specifications, estimated annual generation, warranties, total price, grant treatment and any extra electrical or battery costs—not just the headline quote. The application should be made through the official SEAI process before eligible work begins, where required. SEAI and the registered contractor will determine eligibility and the final grant outcome based on your home and application details.