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 Is solar technology changing? Should I wait? January 15, 2020 What happens if I produce more electricity than I am using? January 15, 2020 Where to buy solar panels? January 15, 2020