Rooftop solar panels perform best when installed at an angle and orientation that maximises sunlight exposure throughout the year. In the UK, south-facing panels generally produce the most energy, though south-east or south-west orientations can also work well. The optimal tilt for most roofs is around 30 to 40 degrees, which balances summer and winter sun angles.
If your roof’s angle or orientation isn’t ideal, panels can still generate electricity, but output may be slightly lower. Ground-mounted systems offer more flexibility, as the angle and orientation can be adjusted to match the site’s conditions. Installers can assess your property and recommend the configuration that delivers the best long-term performance.
