I finished back in November sometime. I did not have any difficulties really, but it was a lot of work. For me the hardest work was the physical aspect of working on the roof, removing tiles, installing the footers for the rails, and installing conduit in my attic, and then pulling the wires. Just a lot of work. Most installers in my area usually just run conduit off the side of the roof, but I wanted it to look nice, and ran the conduit through my attic.
The city actually used the county inspector and he took a look for a few minutes and said it all looked fine. Not once did the city tell me to do anything in regards to my power company, SCE, so I simply turned it on after the inspector left.
Someone on here warned me that NEM 2.0 was not as good as 1.0. But since nobody told me to sign up or do any paperwork for SCE with my new system (I already have a smaller old system) I am still in NEM 1.0. It has been 6 months and SCE never said anything.
Yes, each module came with a rapid shutdown module that goes under the panel and produces about 1v. The SMA inverter activates them all. Seems to work fine, I wish I did not need it, so that I could have had a plug on the inverter for any power outages... but it was required.
Side note, I saw an article this AM that all the power companies are pushing hard for huge changes to NEM in CA. They want drastic reductions in the NEM credit as well as monthly fees ranging from $50 to $90 for the honor of being on the grid.
I do agree that we solar folks need to pay some amount as upkeep for the grid, since we are using it. I don't know what the right amount actually should be. Currently SCE charges me about $11 a month minimum for that, even if I produce more power than use.
Personally I think they need me more than I need them. I would need a battery install but with that, I make plenty of power to be off grid. I think technically I can't legally BE off grid, but I'm not paying $90 for essentially a connection fee. What do they do if you refuse to pay your power bill? Disconnect you? Perfect. So we shall see where that goes, but NUTS to that.
2018 Leaf SV Pearl White with Tech and All Weather, Purchased New on 5/3/19