Apply through the official SEAI website before any solar PV work begins, as starting installation early may affect whether support is available. You will generally need to choose an SEAI-registered solar PV company, which can assess your home, provide a quotation and guide you through the application and paperwork. Keep your grant approval details and arrange the required post-installation documents, such as the BER assessment, where applicable. The amount and final eligibility depend on SEAI’s current rules and your individual circumstances, so check the latest guidance and confirm the process with your registered installer.