New photovoltaic panels for sale in London

Trusted Traders and provide a solar subscription option, though Sunsave is the only top-rated company that installs in London which fulfils the latter requirement.

56,739 homes in London have had solar panel installations certified by the Microgeneration Certification Scheme (MCS), as of June 2025. Across the capital's 32 boroughs and the City of London, that means 1.7% of all households have installed solar panels.

Across the capital's 32 boroughs and the City of London, that means 1.7% of all households have installed solar panels. The best-performing borough is Havering, where 3.12% of homes have gone solar, just ahead of neighbouring Barking and Dagenham.

London receives more sunlight than most areas of the UK. Solar panels only require daylight to work, but they do produce more electricity under direct sunlight – which is why it's great news for solar homes that the capital is relatively sunny. It varies across the city, though.

It costs roughly £9,000 to buy and install a 3 kilowatt-peak (kWp) solar panel system in London. If you want to add a 5kWh battery to this system, you'll generally part with another £2,000, for a total cost of £11,000.

The company currently offers 450W panels made by JA Solar – one of the largest solar panel manufacturers in the world – and batteries made by Enphase and Tesla. You can get a minimum of two solar panels installed – though that's not usually cost-effective – and a maximum of 20. 5. Sustainable Electrical Services