Hi Gordon

Thanks for that. However I may not be going that way. I have just purchased ~3Kws of used solar panels and will possibly aim to go off the grid completely. But I may be a bit slow getting it together.
Interestingly there are lots of used panels out there currently in the cities, for a good price. When people "upgrade" their systems to battery or whatever, the old panels just get taken off and a completely new set is fitted. Cheaper is quoted as the reason

!! The electricians then sell of the old panels for some money on the side ??

They seem surprised there is a demand for them. My panels are 6-7 years old aussie made. Disconnected with a side cutter though !
City style of doing things is just wasteful that's for sure, but an opportunity may be here just now for others to benefit by recycling the "waste"
Cheers Jaahn