Do I need planning permission to install solar panel tilt mounts in the UK?

Installing solar panel tilt mounts in the UK generally falls under permitted development rights, meaning that planning permission is often not required for homeowners or small businesses. However, there are specific conditions that must be met to ensure compliance with these rights.

Understanding Permitted Development Rights

Permitted development rights allow property owners to make certain changes to their properties without needing planning permission. For solar panels, the key conditions are:

• Panel Protrusion: Solar panels cannot protrude more than 200 mm from the roof or wall surface (for wall-mounted panels).
• Height: The panels must not be higher than the highest part of the roof (excluding chimneys).
• Visual Impact: Panels should be positioned to minimize visual impact on the building’s external appearance.

Flat Roofs

On flat roofs, solar panels are allowed to project up to 600 mm above the roof surface, which accommodates tilt mounts designed to optimize solar energy capture. If the projection exceeds 600 mm, planning permission may be required.

Ground-Mounted Systems

Ground-mounted solar systems require planning permission if they exceed 9 square meters (about four to five panels) or if they are taller than 4 meters. They also need to be at least 5 meters away from property boundaries.

Apartment Blocks

Installing solar panels on apartment blocks typically requires planning approval, as multiple consents are necessary from other owners or landlords.

Practical Advice for Homeowners and Small Businesses

• Assess Roof Space: Determine if your roof has sufficient space for solar panels and whether a tilt mount is necessary.
• Consult Local Authorities: Even if planning permission is not typically needed, confirm with local authorities, especially if you live in a conservation area.
• Hire a Professional: Use a certified installer who understands both the technical and regulatory aspects of solar panel installations.

Common Mistakes to Avoid

• Ignoring Conservation Areas: Special restrictions apply in conservation areas, so always check if additional permissions are required.
• Exceeding Protrusion Limits: Ensure that the tilt of your panels does not cause them to protrude beyond the allowed limits.

Pros of Solar Panel Tilt Mounts

• Increased Efficiency: Tilt mounts can optimize the angle of solar panels to produce more energy throughout the year.
• Long-Term Savings: Generating more solar energy can reduce your electricity bills and help decrease greenhouse gas emissions.

Recent Developments in UK Solar Policies

Recent changes in the UK have relaxed planning rules for solar installations to encourage more widespread adoption. The government aims to reduce barriers and costs associated with planning, promoting the use of renewable energy sources like solar power.