Funnily enough, my refrigerator is the reason why this got started in the first place. I realized that if the power went out and I had a stuffed fridge, I'd lose a big chunk of money since the single 12V FLA battery is no where near enough to keep the fridge running if pretty goes out for a significant period of time, and worse yet, if the battery dies, I would have no heat in the winter since the furnace requires 12V to run. And that's how I ended up with 1620W of panel, an MPP 3048LV-MK, and more I'm saving up for building a 5kWh 48V nominal battery to start, then I'll be saving up for a 15kWh battery setup, which is kinda silly for my trailer, but then I could also provide power to family/friends if needed.