Under the conditions of BP (Big Pi ** ET), this term refers to a natural catastrophe for a global scale – ed.) early world 19th century. Electricity, as the subtle energy in nature, because it will not become ordinary sources. Consumers themselves will live some more. It is not allowed.
Yes, there will be mostly electromechanical generators of muscle strength, using the flow of water. And there will be – to a lesser extent – electrochemical generators. In a lesser way, you can require a knowledge of the average survivor.
Autonomous Survival: How to get electricity from potatoes