I have a 12X24 off grid cabin. I have an 8 cu ft, 120 volt fridge on all the time. My lights are 12 volt LED screw in house style bulbs. Nightly I use the TV a light or two. The cell booster is on all the time and have my computer most of the time. Every morning I use my coffee maker, use my crock pot regularly.
I have 6 GC2's, 6 100 watt solar panels with a MPPT controller set to top out at 14.2 volts and 1500 watt PSW invertor I have a 2000 watt invertor generator. I have a 4 stage RV charger if I need it. It will take about 6 hours on the generator to recharge the battery's.
I spend about 90 days a year there with about 35-40 of those days from Oct to April. I leave the heat on Oct thru early January, cabin is heated about 90 days a year. The heat is set at 50 when I am not there, 65 at night and 70 during the daytime when I am there. It is a 1983 RV furnace. It runs a few times during the night and day.
I have had to run the generator 2 maybe 3 times a year when there are several days in a row with no sun.
I realize this got a little long, but hope it gives you an idea of what you will need for what you want to do.
