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Squirrels Prove a Major Threat to Home PV Systems

Christof Demont-Heinrich wrote a recent article on SolarChargedDriving.com, about his home solar system, and the threat that squirrels pose to unprotected systems.

In 2010 REC Solar installed a 5.59 kilowatt photovoltaic solar array at Christof’s home. He reports that the system has been working great, but complains about the amount of effort it takes for him to keep his solar panels safe from squirrel attack.

His paranoia began when a neighbour had a similar PV system installed in 2011 (under a lease with Sungevity, whereas Christof bought his panels outright), and he noticed that the installers, Namaste Solar, put in place a squirrel guard (a.k.a chicken wire) around the whole system.

He then noticed that REC Solar where installing another PV system (on a lease) in Denver in 2012, and unlike his Solar panels, REC were using a squirrel guard. He wonders whether solar companies don’t bother warning customers who buy, about the damage that squirrels may cause to solar arrays, even though they are fully aware of the threat and put up protection when only leasing the panels.

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A 2012 article on Danlezama.com notes that squirrels love to chew through PV wires, and can build their nests in the space under PV panels, causing huge amounts of damage; and the worst thing is that squirrel damage is not covered by warranties.

Chewed Wires

Owners of PV systems must be aware that squirrels can cause damage, but prevention is easy; just a piece of chicken wire around the base of the panels blocks the squirrels access and stops them from reaching the precious wires.

Related article: A U.S.-China War over Solar Power

Squirrel Guard

By. Charles Kennedy of Oilprice.com



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  • Spiffy Solar on June 24 2013 said:
    Securing a barrier without damaging the solar panels or penetrating the roof surface (both of which void their corresponding warranties) is more difficult than it may appear. The popularity of residential solar is increasing the incidence of such problems. In fact the problem isn't limited to squirrels, but also pigeons, pack rats and racoons, depending on the region.

    Installers feeling the pressure from unfortunate customers to solve this problem can find a solution at www.spiffysolar.com

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