My system went live 04/12/2013 9.2 Kw shortly after that I added more panels 12.5 kw.
I have done nothing at all except one time we had a freak snow storm and I pushed some snow off to get them producing faster. (This was not necessary)
I probably should clean them off but production is still strong. It just works.
Flynns Arcade 12.560kW | Yearly
I look at my online production at least once a day but I am on a computer/phone many hours a day.
I do keep an extra microinverter on hand just in case. But I have not needed it yet.
I told my neighbor I was installing solar they laughed at me and said good luck with that working out.