Residential Solar UK: Complete Guide

What do I need to know about residential solar?

Complete UK residential solar guide: Technology: monocrystalline panels, 20-22% efficient, 25yr warranty. Cost: £5,500-£8,000 for 4kW (0% VAT). Savings: £580-£1,100/yr. Payback: 8-12 years. Installation: 3-6 weeks total, 1-2 days physical. Grants: 0% VAT + SEG (4-15p/kWh export). Battery: optional £3,000-£7,500. Maintenance: near-zero. Lifespan: 25-30 years. ROI: 100-400%. Getting started: get 3+ MCS quotes → compare → install. That covers 95% of what you need to know.