So many fearmongers claim that solar panels are not recyclable and will fill up landfills. That myth is codswallop! (BS)
There is *no reason* why solar panels which have lost 20% of their capacity can’t continue to be used. They still have 80% of their capacity – 250 watts or more – and can continue to be used on rooftops or many other less demanding solar generation points. There they can be used for decades more.