We boondock about 99% of the time. Whether short or long trips we tend to stay in forest service, BLM or state parks with little to no amenities. Because of this, solar is our go to source for power in our rig. In those instances where A/C is required I run the Honda 2200 as needed. I’m on my third solar install and chose a lithium battery this time for its deeper reserve and zero service requirements. With its longer life expectancy the initial higher cost should level out over time. We’ll see how it goes.
Here’s an excellent site to get smart on solar with in-depth assessments on practical RV installs, products and appropriate sizing for just about any need.
https://www.mobile-solarpower.com/