NEC 2017 and RSS - I feel so blessed
So I'm working on getting an off-grid home built in Alaska. It's not a cabin or a DIY homestead. It's a house by a custom builder that just happens to have to be off-grid. The builder builds to code, which is great, but this is their first off-grid home, so we're all learning some things as we go. One of those things is what the electrical inspectors will want to see for code compliance with regards to my PV installation.
Today I get word that after a meeting of the inspectors and some other knowledgeable folks within the State of Alaska including at least my electrical contractor, the inspectors have decided they are going to inspect against the 2017 NEC code as it has been adopted by the state. Yay me!
So as I understand it, that now requires my intended roof mounted array to include the remote disconnects within the array itself to limit voltage on the wires to less than 80V within the array. At 30 panels that's a lot of little gizmos to have to add to the system. I wager I may be one of the first in this forum to have to deal with this on a residential install. I can't say as I'm at all happy about it and I'm not sure if I can get around it with a ground mount array or whether I want to do a ground mount array. I didn't really want to before, as the roof was already there, making a great support for 30 panels and it's already up off the ground to get a little more sun in the late fall and early spring.
Does anyone know if the new 2017 NEC RSS options apply equally to ground mount vs's roof mount arrays? Perhaps I'll just start with a much smaller array on the roof and then come back and add ground mount panels after the inspectors are done and gone.