Start by checking the current SEAI eligibility rules and choosing an SEAI-registered solar PV contractor for a quotation. Apply for the grant through the SEAI online portal and wait for approval before any installation work begins, as starting early may affect eligibility. Once approved, the registered contractor installs the system and completes the required paperwork, after which SEAI assesses the claim and arranges payment if the conditions are met. Grant amounts and requirements can change, so check the latest guidance on the official SEAI website or confirm the process with your contractor.