Sounds like an interesting solution. I'm a total neophyte at electrical work and while I think I understand the design by automatikdonn and others on this forum, it's too much for me to try to tackle at my current level of knowledge. If you have any interest in trying to flesh out your isolation...
I asked Signature Solar for some help with a wiring diagram for a very similar setup to this and this was their reply:
"We do not advise on wiring in the Tech department, due to different areas requiring different configurations depending on where you live. We recommend contacting a licensed...