Squirrels by their very nature gnaw. In fact they have to, to keep their incisors at a manageable level.
They are certainly not a pest that you want taking up residence under your solar array.
Squirrels will gnaw through the electrical solar wiring. The cost of replacing damaged wiring is extremely expensive and could far outweigh the cost of having you solar panels squirrel proofed.
ApcUK has developed a system using galvanised welded wire mesh, galvanised metal clips and galvanised wire.
Using this system we have achieved 100% success rate with keeping the squirrels out!
Our system does not affect your warranty, as we do not drill into any part of the array.
Our solar panel proofing experts are happy to talk to the company that installed your panels, for your peace of mind.