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Solar Panel Rodent Protection

Pesky rodents can cause major issues in any solar system. Let ARS share with you our newest findings and expertise on solar panel protection from critters

Signs of Squirrels

If you see a “clump” of debris under a solar array, it is certainly worth investigating. It may soon be safe to assume that squirrels have made a “home” in your solar system and could have already caused some level of damage. The pictures indicate– in this case, their damage leads to connector problems, scorched back-sheets on modules, and exposure of both hot wires, likely causing a fault in the system. Damage to these components can cause system fires which is a scary possibility. Additionally, squirrels will chew through the insulation of solar cables or even the conductors.



A solar panel on a roof

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The time-proven solution to this problem is to install a Critter Protection System (CPS), a flexible fence-like barrier, around a solar array. 

Does every rooftop Solar PV system need a Critter Protection System?

The short answer is: not necessarily. 

Plenty of rooftop Solar PV systems around the country do not have a critter guard and never experience damage from squirrels or other rodents. 

Unfortunately, many wooded areas in New Jersey do have large squirrel populations. 

It is important to consider environmental and geographical factors when assessing the need for a critter protection system.

A hand holding a black wire

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  1. Are there squirrels in the area?
  2. Is the system located in a wooded area?   
  3. Are there any trees adjacent to the roof?

If the answer is yes to all of these questions, you need to consider installing a Critter Protection System.  Alternatively, if there are ANY trees near the house, another option is to perform proper tree management around the house to remove adjacent tree branches. Doing so may deter squirrels from accessing the roof, but this strategy is not foolproof since branches will eventually grow back. Also, keep in mind that squirrel nests are more prevalent with rail systems than rail-less systems.

Not sure what to do next?  Reach out to us at Advanced Renewable Solutions.  We will schedule a system evaluation and perform a solar system tune-up at the same time.  If a CPS is deemed necessary, our qualified technicians will point out the problems and be ready to propose a solution.   

After all, you are the customer!