Solar is no doubt part of a multi-pronged solution for successfully RVing off the grid, we use all our rig's amenities as if plugged into shorepower when off the grid, as such generator use is key to being 100% self-contained. Having no constraints while RVing off the grid makes every where you park a destination, never too hot or too cold, whether parked in direct sun or totally shaded, or simply have 12 volt reserves that are waning, press a single button and all is well.
For us sitting in the dark using the sparsest amount of 12 volt power to get by when we just payed dearly for fuel to go RVing certainly doesn't endear us to this endeavor. We have monitors for both AC and DC voltages, actual current draws, and consumption rates among other details, go to know but again no reason for alarm when you have the ability to power your entire RV and replenish your 12 volt reserves by pressing a single switch from the interior of rig.