As a guide, the average install (including professional fitting) sits at around £9,500. Across typical properties, you’re usually looking at £9,000–£12,000 for a PV system, depending on roof size, access, and the kit you choose. The savings build year on year, and the SEG can add a handy extra income stream. https://www.evergreenpoweruk.com/solar-panels-installation-cost-uk/