Is My Roof Suitable?

The majority of homes in the Channel Islands are suitable for solar PV, and there are three factors that affect the suitability and efficiency of a solar PV system;

The direction your roof faces – Ideally the roof will be facing south, so that the maximum amount of sunlight is captured. If the roof is facing another direction, the panels will still work but they will be less efficient.

The angle of your roof – The ideal pitch for a solar panel in the Channel Islands is 30o, as this increases the amount of sunlight captured, and will generate more energy.
Shading from the surroundings – If there is shading from overhanging trees, buildings, chimneys or vents that block the sunlight, it will reduce the amount of electricity that can be generated by the solar panels.

So in summary the perfect roof would be South facing at 30o pitch with little or no shading.  However, a well designed solar system will still work efficiently from West to East, horizontal to vertical.  If your roof isn't suitable then we may be able to look at putting a Ground Mounted system in your garden.  If in doubt give us a call and we will be able to give you a more accurate analysis for your roof.


An Installation Guide

1. Orientation and Pitch

2. Size of Roof

3. Shading

4. In Roof / On Roof

5. Planning

6. Roof Condition

The roof should also be in good condition as the PV system will be installed and working for a minimum of 25 years. We also offer various fixing methods either fitting traditionally 'on roof' or using a sunken 'in roof' fixing system.


Generally planning is not required for existing residences and installations will fall under permitted development.  The exceptions to this are listed buildings, AONB, Conservation Areas where planning will be required.  Your local planning department will be able to advise on this.  We can assist you with any applications or information required.