Covering large parking lots with solar panels is an idea that goes back decades but in America at least it’s an idea that has never really taken off.
What is the reason for that? Is it due to the overall cost or is there something else that keeps Walmart, Target, Costco, Sams Club, Malls, etc. from covering their parking lots with these panels and selling the power?
They’re usually rated 20-25, but I think I read recently that some are still producing useful power after that.
Solar panels are considered “end of life” when they only produce 70-80% of their rated power.