I thought it was time to share my solar setup on our 2014 365saq. I wanted to use it all last year to make sure there was no kinks. Everything is working flawlessly. System consists on 2 145 watt panels, 3000 watt inverter/charger, and I went with 4 12v AGM 120 AH batteries. Here are some pictures. Everything is hidden in the wasted space behind the basement wall.
Here I added an extra breaker box, I took the second ac out of the original box and moved it here.
Here you can see the 4 AGM discover batteries and the xantrex 3000 watt inverter/charger in the back corner.
Here is my regulator and my complete system disconnect I added in. The disconnect cuts power to the whole trailer but still allows for solar charging, worked great for winter storage, kept my batteries topped up all winter.
My plan is to now add 1 maybe 2 more panels on the roof and 2 or 3 more batteries to the space behind the basement wall. On this system so far we have boondocked for over a week with no issues, we didn't go heavy on power useage but didn't really skimp either.