Solar panels will work a lot longer than 3[edit: 0] years. I've got a batch here of 16 of them that are from the early 00's and that are still producing ~80% of their rated power. They're not even particularly good cells.
Lithium batteries will indeed likely not last for a decade but that has nothing to do with solar installations, though you could combine them (but you'd have a choice of chemistries and for stationary installations where weight and size are not usually the limiting factors you can do better than Lithium).
Lithium batteries will indeed likely not last for a decade but that has nothing to do with solar installations, though you could combine them (but you'd have a choice of chemistries and for stationary installations where weight and size are not usually the limiting factors you can do better than Lithium).