Solar Panels: Beginner's Guide 2026

How do solar panels work for beginners?

Solar panels for UK beginners — everything in one place: HOW THEY WORK: Panels convert sunlight into electricity. An inverter converts DC to AC for your home. You use the electricity, store surplus in a battery, or export to the grid for payment. COST: £5,500-£9,000 for a typical 4kW system (10 panels). 0% VAT. SAVINGS: £580-£1,100/yr on electricity bills. PAYBACK: 8-12 years. LIFESPAN: 25-30 years (panels), 10-15 years (inverter). ROI: 100-400% over 25 years. TAX-FREE: all savings and export income are tax-free. MAINTENANCE: near-zero. Annual clean optional (£40-£100). HOW TO START: Get 3+ quotes from MCS-certified installers. Compare total price, brands, and warranties. Choose the best value — not the cheapest price. Installation takes 1-2 days. You start saving immediately.