what is a critter guard?Post author:freedomtask2Post published:January 13, 2020Post category:FAQIt is a screen protector installed around the solar array to keep squirrels and other rodents from damaging the system. You Might Also Like What are solar panels made of? January 15, 2020 If there’s a blackout, will my solar panels keep working? January 15, 2020 When will I break-even on the cost of my solar panels? January 15, 2020