Solar Orientation: South vs East/West — Which Is Best?
The direction your solar panels face can have a significant effect on when and how much electricity they generate.
In the UK, south-facing panels are traditionally considered a strong option because they can receive good sunlight throughout the middle of the day. However, east- and west-facing panels can also work very well and may actually suit some households better depending on when electricity is being used.
There is no single direction that is perfect for every property.
Key Insights & Understanding
South-Facing Solar
South-facing panels can receive sunlight for much of the day and are often considered a good orientation for maximising annual solar generation in the UK.
Potential advantages include:
• Good exposure to sunlight through the middle of the day.
• Strong potential annual generation.
• Often a good choice where maximum overall solar production is the priority.
However, the actual performance still depends on panel angle, shading, weather and location.
- East-Facing SolarEast-facing panels receive more sunlight during the morning.This can be useful for households where electricity demand is higher earlier in the day.Potential advantages include:• Better alignment with morning electricity use.• Can work well where people are at home and using appliances earlier in the day.• May be a practical option where a south-facing roof or space is not available.As with any orientation, performance will still depend on shading, panel angle and local conditions.
West-Facing Solar
West-facing panels receive more sunlight later in the day and into the afternoon.
This can be useful for households where electricity demand is higher later in the day.
Potential advantages include:
• Better alignment with afternoon and early evening electricity use.
• Can work well where people are at home and using appliances after work or school.
• May help support evening usage when combined with battery storage.
Again, actual performance depends on shading, panel angle, weather and location.
UKPTH Takeaway
South-facing solar can be a strong option for maximising annual generation in the UK, but east- and west-facing systems can also work very well and may better match some households' usage patterns.
The best orientation depends on your property, shading, roof or mounting options and when you use electricity.
Consider your daily usage pattern and site conditions rather than assuming only one direction is suitable.