For reference, the boat is 54ft x 10ft, standard wide beam. I've just built it, so it's a start from scratch with everything.
I'm contemplating running a 24v forklift battery bank, with a 24/5000 Multiplus, then having a 24v - 12v DC-DC converter to run all my DC domestic on board, which will be lighting, shower pump, water pump and bilge pump.
The reason for wanting 12v on board is ease of buying lights etc, 24v is not so readily available. I am also being majorly persuaded to go 12v by a boater friend, who says 12v is the most efficient way of having light. I understand the larger size cable costs for voltage drop, I'm ok with this.
The reason I want a 24v battery bank and Multiplus is because I will have 2.94kw of solar panels on the roof (12 x 245w) and I'm told having this at 24v will be much better. This is why I'm split between the 2 systems.
I guess my question is, will this system work for me? I plan to be off grid so I want to get this right.
I'm new to all this so I'm very much learning as I go.
Thanks in advance for any advice.