We bought our solar panels from Solar Edge.It's a 4.5-5 KW system We are in our forth year. I've done nothing to it, no maintenance. It just works. Every n

We bought our solar panels from Solar Edge.It's a 4.5-5 KW system We are in our forth year. I've done nothing to it, no maintenance. It just works. Every now and then it rains and that cleans up the panels enough.