I'm not nearly as pessimistic as you are but have been working over the years to reduce our energy footprint and try to harvest as much as we can directly from our property. We are lucky in that we live in a fairly rural area.
I agree with the principals posted by lutful
to reduce consumption, go after the low hanging fruit.
1) Space heating - wood is ideal. We heat with cordwood harvested on our property. Go through about 2-1/2 cords a year.
2) Water heating - wood is ideal in winter and passive solar in summer
3) Clothes drying - not sure what a "dryer hut" is but an old fashioned clothes line works just fine - stuff gets a little stiff and need to watch for bugs.
4) Reducing electricity consumption is more effective then trying to generate power. CFL, LED lighting, turn off stuff you don't need, etc
5) Hand crank water pump
6) A garden can be an effective way to put food on the table.
As has been pointed out if society falls apart, which I personally doubt, generating electricity will be the least of your worries. A better option is to "live below your means" as my neighbor often said to give you flexibility to cope with uncertainty.