Here is a list of Solar equipment on our RV. These components are the same that you would see used on an off-grid solar cabin or tiny house.
We initially started out with a single solar panel and a PWM charge controller. We have continuously expanded it over the years. Today we have roughly 500 watts of flexible solar panels on the roof, a 45 amp MPPT charge controller and 2000 Watt Pure Sine inverter. Here is a basic diagram of our setup.