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 net-metering? January 15, 2020 Why is solar power the best energy source? January 15, 2020 What if I’m considering refinancing my house to pay for solar? January 14, 2020