I am looking at making an off grid goat barn, and I am a solar newbie. I will probably be using two LiFePO4 12V 200Ah batteries wired in parallel, giving me 400AH, to power the system, but I'm a little fuzzy on what I'll need in between. I know I need a charge controller, battery charger, battery monitor, inverter, and batteries, but I'm not sure what would work for what I want. Below are my calculations on daily kWh hours, the highest Wattage loads, and the differences between kWh hours during the summer and winter, as well as the general layout for the lights and outlets. I'm thinking about 8 circuits in total.