Solar Panel Cost Guide UK 2026

What is the total cost of solar panels?

Complete UK solar costs 2026: Upfront: £5,500-£8,000 (4kW, 0% VAT). Battery: +£4,000-£6,000 (optional). EV charger: +£800-£1,100 (optional). Diverter: +£200-£500 (optional). Ongoing: cleaning £80-£150 every 2-3 years, inverter replacement £800-£1,500 at year 12. Hidden costs: NONE with MCS-certified installation (everything is included). Total 25-year cost of ownership: £8,550-£10,050 (panels + one inverter + occasional cleaning). Total 25-year savings: £14,500-£27,000+. Net profit: £4,450-£16,950.