Can Pigeons Damage Solar Panel Wiring?
Yes, pigeons nesting underneath solar panels can contribute to wiring problems, but pigeons chewing through wires is not usually the main concern.
The bigger issue is that nests, droppings, feathers, and other debris can accumulate around wiring and electrical components underneath the solar array.
Do Pigeons Chew Solar Wires?
Pigeons are not rodents, so we would not describe wire chewing as the typical pigeon problem.
Animals such as squirrels are much more commonly associated with chewing electrical cables.
With pigeons, the concern is usually the environment created underneath an active nesting area.
Pigeons can build nests around solar mounting brackets, racking, and other protected areas underneath the panels. EnergySage notes that birds nesting underneath solar panels can create problems around wiring and sensitive electronics. (energysage.com)
What Problems Can Pigeon Nests Cause Around Solar Wiring?
A heavily used nesting area can contain:
Twigs and nesting material
Feathers
Droppings
Loose debris
Material packed around mounting hardware
Debris near exposed wiring and connectors
Solar wiring is commonly routed underneath the panels, which is the same area pigeons often use for nesting.
The National Renewable Energy Laboratory recommends keeping solar wiring properly secured underneath the modules because loose wiring can become damaged. (nrel.gov)
Can Pigeon Debris Cause a Fire?
Dry nesting material around electrical equipment is something that should be taken seriously.
That does not mean a pigeon nest underneath solar panels will automatically cause a fire.
However, EnergySage notes that leaves, twigs, and other combustible material accumulating near solar wiring can create a fire hazard. (energysage.com)
Removing nesting material is one reason cleanup matters before the panels are pigeon proofed.
What if the Solar System Is Producing Less Power?
Do not automatically assume pigeons damaged the wiring.
Lower solar production can have many causes, including:
Dirty panels
Shade
Inverter problems
Failed equipment
Wiring issues
Seasonal changes
Weather
If your solar monitoring shows a sudden unexplained drop in production, contact a qualified solar technician.
A pigeon control company should not repair or disconnect solar electrical components unless it is qualified to perform that work.
Should the Nests Be Removed Before Installing Bird Mesh?
Yes.
If pigeons have already been living underneath the panels, the area should be inspected and accessible nesting material should be removed before the perimeter is closed.
Cheetah provides bird nest removal from underneath solar panels as part of applicable projects.
Simply putting mesh around an array without addressing the existing nests and debris leaves the original mess underneath the system.
How Do You Keep Pigeons Away From the Wiring?
For pigeons nesting underneath solar panels, Cheetah generally prefers physical exclusion.
Black PVC coated galvanized steel mesh is installed around the exposed perimeter of the array so pigeons can no longer enter the space underneath.
The mesh should be attached without drilling into the solar panel frames.
Learn more about solar panel pigeon proofing.
The Bottom Line
Pigeons are not typically chewing through solar wiring like rodents can.
The larger concern is allowing pigeons to repeatedly nest around the wiring, racking, and electrical equipment underneath the array.
If pigeons are already living beneath your panels, removing the nesting material and physically blocking access is usually more practical than waiting for the buildup to get worse.
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