doesn't replace shore power, it supplements minor uses on a camper. So the litany of fine 120V appliances is usually out. Batteries also have a role, both to handle the hours per day when the sun isn't out and cloudy days too.
Optimizing/reducing your use is important, through LED lighting
, CPAP strategy (reducing the load, maybe a different unit) and more.
It's a great opportunity for some driveway camping tests. Disconnect your shore power and spend some time in the camper, including nighttime. See how it goes. Solar is getting cheaper, if I were to do it now, I'd go with a 200W panel instead of my 100W panel. But I do not have a CPAP, all of my lighting
is LED, I don't run any electric appliances. So in the end, the 100W suitcase panel has met my needs.
When I make coffee, I pull out my stove top percolator and fire up the propane
stove. Other than LED lighting
, I am using 12V water pump, and whatever 12V is required when my fridge
is on propane
I am watching lithium batteries slowly go down in price. That may be my next spend. My current batteries are relatively new, so I will wait until replacement time.
Now I did meet a guy with 1600 watts of solar on his small camper (half of it was on the ground). In that case, it did pretty much substitute for shore power. He also had a sizable bank of lithium batteries. He may well have had a Scamp
13 type of investment in solar + batteries + high efficiency appliances (like a mini-split heat pump).