When comparing a solar PV grant in Ireland, check the current SEAI support, the system size covered, and whether battery storage is included or treated separately. Compare installer quotes on total price, expected generation, equipment warranties, aftercare, and the installer’s SEAI registration, rather than comparing the grant amount alone. Your home, electricity use and roof may affect the system recommended and the support available. SEAI ultimately decides grant eligibility and payment, so check the latest terms on its official website before signing a contract.