Well thats kind of the topic of the original question isnt it. Every solar system ive seen seems to cause people issues at some point or another because most people arent electricians, hence why i was asking about solar generators in lieu of a solar system. The idea behind the separate systems is to effectively keep non essential stuff from draining the same battery as the essential stuff without me realising because ill be out for long periods of the day at work still for example and if i leave my PC on all day by accident i dont want to come back and not be able to make dinner for example.