Lone’s friend is correct, just think of all the electronics that eventually fail and get thrown away. Most of the time a small supporting part will fail making the whole thing useless. Things like switches diodes and capacitors stop working. Plus if it’s EMP that stops the world, the converters and controllers will need protection. I’m still wondering what wiill happen to batteries. Will they over charge and self destruct?
I’m not of the mind that I will give up on using electricity or the idea of never returning to advanced manufacturing. Everything already invented and proven can be rebuilt using the right building blocks.