Solar Panel Angle Guide
Solar Panel Angle in London
locationPage.latitudeLineHere's the optimal solar panel tilt and orientation for maximum energy production.
Year-Round Tilt
47.9°
Summer Tilt
31.5°
Winter Tilt
71.5°
Face
South
180° azimuth
Monthly Optimal Tilts for London
Jan
60.0°
Ideal: 71.8°
Feb
60.0°
Ideal: 63.2°
Mar
51.5°
Apr
39.8°
May
31.2°
Jun
28.1°
Jul
31.2°
Aug
39.8°
Sep
51.5°
Oct
60.0°
Ideal: 63.2°
Nov
60.0°
Ideal: 71.8°
Dec
60.0°
Ideal: 75.0°
Peak Sun Hours
3.5 hrs/day
Average daily solar insolation
Annual Production (400W panel)
~511 kWh
At 47.9° tilt, facing South
Solar Panel Recommendations for London
- Fixed mount: Set your panels at 47.9° tilt, facing South (180° azimuth).
- Seasonal adjustment: Tilt to 31.5° in summer and 71.5° in winter for up to 15% more annual energy.
- Monthly adjustment: Adjust tilt each month using the table above for maximum year-round production.
Solar Performance Under London Skies
London receives approximately 3-3.5 peak sun hours daily with frequent cloud cover throughout the year. The maritime climate produces mild temperatures, overcast conditions, and moderate rainfall spread evenly across seasons. Despite modest irradiance, the UK's solar market has grown substantially due to favorable policies.
The UK's Smart Export Guarantee (SEG) requires larger electricity suppliers to pay for excess solar energy exported to the grid. This form of net metering improves solar economics. Combined with the UK's relatively high electricity rates, solar installations in London can achieve reasonable payback periods.
London's dense urban environment means roof space is often limited and shading from neighboring buildings is common. Many London properties have pitched roofs with tiles or slates. The city's growing solar market is supported by installers experienced in working with London's varied housing stock.
Orientation Performance
Panel orientation significantly affects energy production. The table below shows relative output compared to true south-facing panels:
| Orientation | Relative Output |
|---|---|
| South | 100% |
| Southeast | 96% |
| Southwest | 96% |
| East | 85-90% |
| West | 85-90% |
| North | 60-75% |
Frequently Asked Questions
Is solar worth it in London?
London averages 3-3.5 peak sun hours. The UK's Smart Export Guarantee and high electricity rates make solar viable despite frequent cloud cover.
How much energy can a 400W panel generate here?
With 3.5 peak sun hours per day, a properly aligned 400W panel could generate approximately 511 kWh per year.
Related Calculators
Solar Panel Tilt Calculator
Calculate optimal tilt for any latitude and month
Solar Panel Azimuth Calculator
Find the exact compass heading for your panels
Get precision alignment with SolarAlign Pro
Use your phone's sensors to align your panels to the exact angle calculated here.Learn more →