Refrigeration is a problem if you don't have a huge generating capacity. At your latitude and weather conditions, think you'd need acreage to set up a PV system that would supply the juice for a household frig. The self defrosting feature is the big energy hog though they aren't that frugal in electrons just for cooling either. Might want to look at Propane refrigeration if you don't want to go to the expense of DC frig. Propane Frig's are quite efficient and it's really easy to get your local propane supplier to keep your tank full. Ours was 100% reliable though not self defrosting. Propane is also a good source of fuel for the back up generator which you'll probably need. Inverters suck up a lot of juice just being turned on. Don't be fooled by their claims of efficiency, liars figure. Try and keep everything 12/24 volt if possible. DC is so much more efficient that DC to AC for energy use.

I'd look seriously into the water generation side as it's almost 100% reliable day and night. Solar PV output is severely attenuated by even the thinnest over cast and by 80% or more by cloud cover. Unless you live in AZ, photovoltaics just aren't very reliable and definitely not cost effective. Wind generation requires more than 10mph breeze and really 15mph plus to produce significant power. That's an uncomfortable wind which isn't very common.

We lived off the grid for 10 years because of the cost of bringing power to our property. Survived but had to be my own utility maintenance person as well as lug the propane tanks to the supplier because of our access road. Learned a lot but it was a real pain at times. Would not consider going back to total off the grid set up because of the refrigeration issue. Solar hot water worked very well.