Where in the UK could you get the best return on solar and battery?

Location shapes your return, but not by as much as you might think. The Rooftop Valuation Report estimates a solar and battery system could pay for itself in around 7.9 years on average, with savings continuing after that.

Regional savings at a glance

• England: £954 a year, 7.81 year payback, £10,993 over 20 years
• Wales: £951 a year, 7.83 years, £10,938
• Northern Ireland: £930 a year, 7.95 years, £10,549
• Scotland: £869 a year, 8.54 years, £9,323

Where returns are strongest

The South East (£991 a year) and South West of England (£976) lead, with Torbay reaching about £1,069. South West Wales averages £1,001, and Pembrokeshire reaches £1,014. In Scotland, Dundee City sits near £929 a year, and in Northern Ireland, Ards and North Down is near £958.

Viable well beyond the sunniest spots

Every region analysed shows estimated average annual savings above £800, so solar stays economically viable nationwide.

What decides your own return

• Roof size and usable area
• Roof orientation and shading
• Local sunlight
• System specification
• How much electricity your household uses

Emily turns these into a personal estimate for your roof.

See your own number: Roof Report →

All figures are modelled estimates for typical UK rooftops, not guarantees for any individual home. Rules, funding and eligibility can change, so check current government and supplier guidance before deciding.

Next guide: Does solar power work in the UK even with all the rain? →