Umm, there are no electricity plans post SHTF....
Seriously, there is an eventual end to the resources needed to produce it. My Great grandfather lived without it, seems that if properly prepared nothing is preventing me from living that way too.
It's gonna suck but that's how I expect to do it.
That's sort of where we are at.
2 weeks (max)with a genny until the freezer food is eaten or preserved and then we're down to a couple small solar/wind set-ups for keeping the 2-way radios usable.