Solar basics
Draft · editorial review needed
Which direction should solar panels face in the UK?
Direction affects when and how much panels generate, but shade, roof condition and household timing also matter.
The short answer
Quick answer
In the UK, direction influences a panel’s generation profile. South-facing systems can produce strongly across the day, while east- or west-facing arrays shift generation earlier or later. The best layout depends on shade, roof geometry and when electricity is used.
Direction changes the shape of generation
A south-facing roof is often discussed as a strong general orientation, but east- and west-facing systems can still be suitable. East tends to favour earlier generation and west later generation; the exact profile depends on angle, location and shading.
That timing can matter as much as the total when a household wants to use electricity directly. Compare the expected generation profile with your actual routine rather than choosing by compass direction alone.
Include shade and roof constraints
Trees, chimneys, neighbouring buildings and roof features can affect output. A professional assessment can examine shading through different times and seasons and explain how it affects the proposed design.
Avoid treating generic orientation charts as a promise for an individual roof. Ask for site-specific assumptions and compare alternatives where the roof has more than one usable face.
Quick answers
Common questions
Is a north-facing roof automatically impossible?
It may receive less useful sunlight, but suitability should be assessed for the specific location and roof. Ask an installer to explain the expected generation and assumptions before deciding.
Can an east- or west-facing system be worthwhile?
It may suit some homes, especially if its generation timing matches electricity use. Compare a site-specific estimate, shade and system cost.
Further reading
Sources and official guidance
This guide is general information, not an assessment of a specific property or product. Check current official guidance and the manufacturer’s instructions before acting.