I can't help noticing that the natural tendency of the human species is to expand and adapt - that is what we are. I also notice that the various movements that advocate more basic living patterns have never really caught on.
So you are going to have two options:
1) Refuse to do anything about power, let it get more and more expensive until enough people die that you have a solvable problem
2) work on making it cheaper
I am sure the greens would say also:
3) everyone chooses to live a more basic quieter life against our natural instincts. Oh and all those nice rich and powerful people will also be joining in and not just taking advantage
and I will say
good luck with that (oh and if you try to achieve 3 without peoples buy in but rather through legislation you effectively are back to option 1)
it's 1 or 2 - and 1 is going to be f@#king awful so let's get working on cheap power