Pigeons love the gap under panels — mesh prevention beats reactive nest removal.
Why birds nest under PV
Panels provide shelter from rain and predators. Nesting material blocks airflow, corrosive droppings damage cables and roof membranes, and mites can enter lofts through nearby gaps.
Mesh and clip systems
Galvanised or stainless mesh clipped to panel edges without drilling is standard. Poor fits leave gaps pigeons exploit within weeks. Install at commissioning if local pigeon pressure is high.
| Approach | Notes |
|---|---|
| Edge mesh clips | Preferred — removable for panel service |
| Spikes on ledges | Supplement mesh, not substitute |
| Foam fillers | Often fail — birds peck through |
Squirrels and cable damage
Rodents chew DC cabling where it hangs unprotected. Steel conduit or critter guard on vulnerable runs reduces outage risk and fire hazard.
Cost and timing
Adding mesh at install on scaffolding is cheaper than a separate call-out later. Budget £300–£800 depending on array size and access.
If nests already exist
Clear nests outside breeding season where wildlife rules allow — professional pest controllers understand licensing. Fit mesh immediately after clearance.
Mesh must not trap heat against panels — use products designed for solar arrays.
