@Buttoni , the one thing about having to make it without electricity is that at least here in the south, the heat will degrade the nutritional value and quality of your food stores very quickly.
It is a problem that I have been trying to find a way around for a while now. I finally gave in and decided to splurge on solar.
I am like you and watts, volts and such just boggled my mind. The book "Solar for Dummies" helped because I could easily go back and re-read; on issues I struggle with, having a tangible book really helps me to wrap my head around it better than videos. My husband knows electrical but, lighting a fire under his butt to get him moving on things is sometimes a problem, so I need to know. Plus, if anything was to happen to him, or me, we both need to understand all of the systems and such.
The conundrum for me regarding long term food storage without electricity is...
From my research : In Central Texas the frost line is at about 4" and the ground, unless you are really deep (Like 35+ feet), does not provide significant cooling in the summer months. With outside temps at 110 + sometimes for weeks at a time, with 80%+ humidity the soil is just thoroughly heated,
One of the first things I noticed when I moved from the north to the south was there was no such thing as "cold" water coming out of the tap. Even with the much deeper city water we had in Florida. Cool yes, cold no. Combine it with our high humidity and you might just end up with a spoiled mess even with a traditional root cellar.
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Figure 2. Mean annual earth temperature observations at individual stations, superimposed on well-water temperature contours.
I haven't gotten the root cellar built yet so has anyone here in the southern US in that earth temp 75 degree range, done it and successfully stored food? If so, how did you do it?