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 is my rate of return? January 15, 2020 How much does it cost to install solar panels? January 15, 2020 What happens if I produce more electricity than I am using? January 15, 2020