Is the UK too cloudy for solar to be worth it?
No, the UK is not too cloudy for solar. It has comparable solar resource to parts of Germany, one of the world's largest solar markets. Panels generate from daylight, not direct sun, so they produce on overcast days. A typical UK system generates around 850 kWh per kWp a year, enough to save most homes £400 to £1,150 annually.
Why the cloud myth is wrong
Solar cells respond to daylight, including the diffuse light that passes through cloud. The UK's long summer days are highly productive, and annual figures already account for British weather. Germany, with similar conditions, has installed solar at massive scale, which shows it works in a cloudy northern climate.
What actually matters more
- Roof direction: south, east or west all work well.
- Shading: trees and buildings matter more than regional cloud.
- System size matched to your usage.
- Region makes only a small difference (the North is ~93% of the UK average).
Frequently asked questions
- Do solar panels work in northern England and Scotland?
- Yes. The North of England generates around 93% and Scotland around 90% of the UK average, still very worthwhile with a good roof.
- Is it worth getting solar in a cloudy area?
- Yes. Roof direction and shading affect output more than local cloud, and savings remain strong across the UK.
Related questions
Indicative estimates based on UK average data. Last updated 27 May 2026.