Supposedly an EMP can burn up the precious generators and transformers. Which is a problem be cause there are not many spares and I am not sure if we even make them in the US anymore.
Retired congressman Bartlett says we do not make any large transformers in the US. Knowing how to make a mill run with water wheel and geared torque shafts will be most useful ... provided little barry bastard boy’s sons don’t murder the golden goose in their continuous rampages.
If you own a generator, keep it stored in a wooden box covered with metal foil or sheet metal on all 6 sides.
Look up “faraday cage”
It will protect anythign inside from EM pulse