Wanting to add more solar to keep the unit charged and limit our most days with what I am using. Can I have the solar go to a better MPPT controller, hook that to a battery and plug that into the AC200p or should I just go the other route and build a full system? I am using it in a shed; tools, pool pumps, most electronics in the back area of my property. The pool filter and salt water converter burn a ton of energy. I am trying to make it so it is completed operated on Solar, but there are days I have to plug in still because of the amount of watts coming in.