BrightGridA north-facing roof does not automatically mean that solar panels are impossible. In the UK, roof direction, pitch, shading and the available alternatives all need to be considered together before deciding whether a north-facing roof is worth using.
Which direction is best for solar panels in the UK?
South-facing roofs have traditionally been considered the strongest single orientation for maximising annual solar generation in the UK. East and west orientations can also perform well and may produce a generation profile that matches household consumption differently.
| Orientation | General consideration |
|---|---|
| South | Often strong annual generation |
| South-east / south-west | Very useful alternatives |
| East / west | Good potential and broader daily generation |
| North-east / north-west | More dependent on roof pitch and site conditions |
| North | Can be viable in some situations but normally requires careful modelling |
Why roof pitch matters
A shallow north-facing roof and a steep north-facing roof can produce very different results. The relationship between the roof surface and the sun's path affects how much sunlight reaches the panel.
When can north-facing solar make sense?
- The roof is relatively shallow.
- There is significant electricity demand on site.
- The alternative roof areas are already full.
- The installation can use suitable panel technology and system design.
- The generation estimate still provides an acceptable return.
- The property has an EV, battery or other flexible electricity demand.
Why east-west solar can be attractive
East-west arrays can spread solar generation over a larger part of the day. For households that use electricity in the morning and afternoon, this can sometimes create a useful match between generation and demand.
Can a battery make a north-facing roof more useful?
A battery can change when solar electricity is used, but it cannot increase the amount of sunlight reaching a north-facing panel. The roof should therefore still be assessed on its expected generation before storage is considered.
Never reject a roof based on direction alone
A proper solar survey should model orientation, pitch, shading and available roof areas together. A north-facing roof may be unsuitable in one property and perfectly reasonable in another.
What should a solar survey check?
- Roof orientation
- Roof pitch
- Shading throughout the day
- Available roof area
- Roof condition
- Panel layout
- Inverter design
- Annual generation estimate
Check whether your roof is suitable
We can assess the available roof faces, shading and energy demand before recommending a solar system.
Explore SolarFrequently asked questions
Can solar panels work on a north-facing roof in the UK?
They can in some circumstances, particularly where the roof is relatively shallow and the expected generation still produces an acceptable return. A site-specific assessment is needed.
What is the best direction for solar panels in the UK?
South-facing roofs are traditionally favourable for annual generation, but east, west and intermediate orientations can also work very well depending on the property's energy-use pattern.
Are east-facing solar panels worth it?
Yes. East-facing panels can provide useful morning generation and can work especially well as part of an east-west system.
Does a battery make north-facing solar better?
A battery can help use generated electricity at a later time, but it does not increase the amount of solar energy produced by the north-facing roof.
Sarah Kimani
Systems Designer at BrightGrid Energy
