How Much Do Solar Panels Cost?

As a broad guide, most UK domestic solar installations fall between £5,000 and £10,000. Smaller systems on simple roofs sit at the lower end; larger systems, complex roofs and premium panels push higher. Battery storage typically adds a further £2,000–£5,000.

What affects the price?

• System size (kWp) — the single biggest factor. More panels means more cost but more generation.
• Roof complexity — scaffolding, steep pitches and awkward tiles add labour.
• Panel and inverter quality — efficiency and warranty length vary a lot between brands.
• Battery storage — optional, but increasingly popular.

Does VAT apply?

Solar installations currently benefit from 0% VAT in the UK, which reduces the total cost compared with previous years.

How to avoid overpaying

Quotes for the same specification can differ by thousands. Always get at least three itemised quotes so you can see exactly what you are paying for — panel brand and output, inverter, battery, scaffolding, warranties and aftercare — rather than comparing single headline numbers.

This article is general information. Costs and savings vary by property, energy use and tariff.