✆ 0800 123 4567
✉ help@greenreachenergy.co.uk
Mon–Sat 8am–8pm
New 0% VAT on solar panels — check your eligibility →
Solar Panels

Solar Panels in London — 2026 Guide

By Chris Barlow, Contributor · Updated April 2026 · London, Greater London

Solar Panels hero image
Quick answer: Solar Panels in London cost between £5020 and £10520 installed (2026 prices). The average homeowner may save an estimated £670 per year on energy bills. Government support: 0% VAT (saves ~£600).
£7570
Est. installed cost
£670/yr
Est. annual saving
~10 yrs
Est. payback
1625 hrs
Sunshine hours

Is London a Good Place for Solar Panels?

London receives an average of 1625 hours of sunshine per year — slightly above the UK average of 1,493 hours. Combined with South East’s energy prices tracking the UK average, solar panels installations here may offer good value (individual results will vary).

London has a population of 8,900,000, and the area falls within the South East region. We recommend getting at least 3 quotes to compare prices.

London

Solar Panels Costs in London (2026)

System size Typical cost Est. annual saving Est. payback
3kWp £4030–£5390 £450/yr 11 yrs
4kWp (most common) £6430–£8130 £700/yr 10 yrs
6kWp £9390–£12680 £1030/yr 9 yrs

Source: Green Reach Energy research, March 2026. Prices are estimates and include installation and VAT. Actual costs may vary.

Get your free Solar Panels quote in London

Compare prices from up to 3 installers near you. No obligation, quick and easy.

Get Free Quotes →

Available Grants in London

Eligible installations qualify for 0% VAT (saves ~£600) — check your eligibility.

Solar Panels grants in London

Find Installers in London

We recommend getting at least 3 quotes from qualified installers before making a decision. Check reviews, ask for local references, and make sure warranties are clearly stated in writing.

Get Free Quotes →

What to check before hiring an installer in London

  • Qualifications — check the installer holds relevant qualifications and certifications for solar panels before signing any contract
  • Local references — ask for completed jobs in London or Greater London
  • Reviews — check online reviews before committing
  • Warranty — product and workmanship warranties should be clearly stated in writing
  • 3 quotes minimum — we recommend comparing at least three quotes to ensure you get a fair price
Solar Panels installer in London

Frequently Asked Questions

How much do solar panels cost in London?
Solar Panels in London cost between £5020 and £10520 installed. A typical mid-range system costs around £7570 including installation and VAT (estimated, based on our research).
Is there a grant for solar panels in London?
Yes — solar panel installations currently qualify for 0% VAT (saves ~£600), saving homeowners several hundred pounds. Use a qualified installer to qualify.
How long is the payback period in London?
The estimated payback period in London is around 10 years, based on estimated annual savings of around £670. Actual payback depends on your energy usage, roof orientation and tariff.
Do I need planning permission in London?
Most solar panels installations fall under permitted development rights and do not require planning permission. However, listed buildings, conservation areas and flats may need approval. Always check with your local planning authority in London before installation.
How do I find a good installer in London?
We recommend getting at least 3 quotes from qualified installers. Check online reviews and verify that the installer holds relevant qualifications before signing any contract.