Amongst the numerous half finished projects on-board is the DC distribution install. The Mastervolt people have been great in replying to my myriad of questions. So far I love the MV system. The great (and possibly only) benefit of wiring your own boat is that you should know how everything works. The problem is that, despite having read most of the books, there are still gaps in my understanding of electrickery. I will have a qualified grownup check everything before it goes live.
This is the distribution diagram for the system, so far;
One interesting element of the layout is that the house batteries are linked to the Mastershunt 500 via a switch. All the loads, Combi charger, alternator etc. are linked into the DC Distribution 500 and then, via the Mastershunt 500 to the House batteries. If the switch is off the house batteries cannot be charged. I'm not sure if this is an issue or not.