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UK Price Guide 2026

Solar Panels & Battery Storage Cost UK

See what a solar system costs on your roof, with or without a battery, and roughly how long it takes to pay for itself.

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Estimated cost in Manchester/Liverpool

£4,903–£7,210

full system · Manchester/Liverpool

Typical cost breakdown

  • Panels£2,059–£3,028
  • Inverter£588–£865
  • Battery storage£981–£1,442
  • Scaffolding£392–£577
  • Installation£883–£1,298

Low-income households can sometimes get solar funded under ECO4, which runs to 31 December 2026. Check ECO4 eligibility

Estimates only, based on UK market data 2026. Confirm with a local pro.

Prices based on 2026 UK market data. Updated August 2026. Always get 3 quotes before booking.

Estimates based on 2026 UK market research. Your actual cost depends on a site survey. Always get three quotes.

Average prices in the UK

TypeTypical priceNotes
3kW system (8 panels)£4,500–£6,000Suits a 1–2 bed home
4kW system (10 panels)£5,500–£7,500The most common UK size
5–6kW system£7,000–£10,000Larger family homes with high usage
5kWh battery£2,500–£4,000Stores roughly a day of typical evening use
10kWh battery£4,500–£7,000Better with an EV or off-peak tariff
Scaffolding£500–£1,000Usually required on two-storey roofs

Savings and payback

A 4kW system in the UK generates roughly 3,400 kWh a year. If you use about half of that in the home and export the rest, you save around £550 to £750 a year at 2026 prices.

That puts payback at roughly 9 to 12 years on a panels-only system. Add a battery and yearly savings rise to around £850 to £1,100, but payback stretches to 11 to 14 years because of the extra cost.

Assumptions: 27p per kWh import, 15p per kWh export under SEG, a south-facing unshaded roof, 50 percent self-consumption without a battery and 75 percent with one. Change any of those and the numbers move.

What affects your price

Roof direction matters more for output than cost. South facing is best; east or west loses roughly 15 percent of generation; north facing rarely pays.

Slate and flat roofs cost more to work on than plain tile. Two-storey homes almost always need scaffolding, which adds £500 to £1,000.

Batteries are the biggest single add-on. Only add one if you are home in the evenings or on a time-of-use tariff, otherwise the payback drags.

Frequently asked questions

A 4kW system costs £5,500–£7,500 fitted in 2026. A 3kW system is £4,500–£6,000 and a 5–6kW system £7,000–£10,000. Scaffolding adds £500–£1,000 where it is needed.

A 5kWh battery adds £2,500–£4,000 and a 10kWh battery £4,500–£7,000 installed. It is worth it if you use most of your electricity in the evening or run an EV.

Around 9–12 years for panels alone and 11–14 years with a battery, based on 27p per kWh import and 15p per kWh export. Panels are usually warranted for 25 years.

Some low-income households qualify for funded solar under ECO4, which runs to 31 December 2026. Everyone else pays privately, though there is no VAT on domestic solar installations.

Usually not. Roof-mounted panels are permitted development on most homes. Listed buildings and conservation areas are the main exceptions.

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