Good morning
Thank you for this group hope to get some guidance and direction and thank you kindly for your time and efforts you provide on this group.
My aim is to go off grid eventually, What I have is a property with 12 units rented out. All have solar hot water systems.
What I want to start with is with what I have
3 X Multiplus 48/3000/35
8 X 595W solar panels - connected to A goodwe 4,800Kw Inverter that recently shorted the battery side but is still feeding power to the grid.
12 X 310W Solar panels connected to an Omron 4kw Grid tie.
I want to Parallel the 3 X Multiplus
Get a 10kw Lithium Iron Battery to supply the above
Connect the 8 X 595W panels to 4 X MPPT victron 100/20
My question is what grid tie can communicate with the Multiplus and can the multiplus 3X3000 parallel single phase charge the batteries from the grid tie what would the 1 : 1 rule count for here is it only 1 Multiplus or can all 3 charge thus 9kw?
I have realised that a central battery system would be the way to go and then external Grid ties on other buildings doing some of the charging.
Once the batteries are full I want to be able to run the borehole pump with the excess power available and after that in winter warm up geysers electrically.
If there is too much power used or batteries low I would like to Fire up the old Lister Petter 10Kw with AutoStart till the situation improves.
Would need to get a CEREBO GX or something like that.
Any advice would be greatly be appreciated.