Solar Panel Costs & Savings in the UK
A realistic, research-backed breakdown of what solar panels cost in 2026, what you'll save, and how long it takes to see a return on your investment.
How much do solar panels cost in 2026?
Prices have fallen 17% since 2023, and all residential solar installations are VAT-free (0% VAT) until at least 2027. Costs vary by system size, roof type, location, and installer:
- 3 kW system (2-bed home): £5,000–£7,500 installed
- 4 kW system (3-bed home): £5,500–£9,000 installed
- 5–6 kW system (4-bed home): £7,500–£12,000 installed
- Add a 5 kWh battery: £1,800–£5,000 extra (cheaper when bundled)
- Per-watt pricing: approximately £1.40–£2.00/Wp
How much will I save?
Savings depend on your system size, how much electricity you use during daylight hours, and current electricity prices. A battery lets you store energy for evening use. Savings depend on your home, energy use and tariff - your free survey gives you a personalised estimate.
Payback period and ROI
Most homeowners see a full return on investment within 6–9 years. With panels lasting 25–30 years and manufacturer performance warranties.
Solar Savings Calculator
Find out how much a solar panel system could save you each year. Takes less than 60 seconds.
Enter your average monthly electricity bill
How We Estimate Your Savings
Our calculator uses average solar irradiance data for Greater Manchester and Lancashire (950 kWh/m²/year), current Ofgem electricity rates, and typical Smart Export Guarantee tariffs to give you a realistic estimate.
Real North West Solar Data
Based on actual irradiance data for Greater Manchester & Lancashire — not generic UK averages.
Current Energy Rates
Uses the current Ofgem electricity price cap rate of 28p/kWh plus Smart Export Guarantee at 8p/kWh.
Battery Storage Modelling
Illustrative estimate of how a battery lets you use more of the solar energy you generate.
Want a precise figure?
Our free home survey includes shading analysis, roof assessment, and a tailored system design — giving you exact numbers, not estimates.
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