We are in the planning stages of doing a build out of a 22 foot step van. My Wife and I will be the only ones living in it. We are figuring our solar needs at about 1800 to 2000 watts and 2000 to 2500 AH of batteries. I have been told this is overkill, but id rather have it and not need it then need it and not have it. Plus I’m looking worse case and have best outcome on cloudy days and days with short sun cycles.
I need to know the best MPPT controller to use, will I need more then one controller?
Our goal is to be able to run two window type A/C units, electric water heater, electric cooktop, a couple computers, TV, and other common things. Then use propane as a backup for days without sun, if we run out of battery power.