In my childhood BAM, sometimes there were power outages (for example, in the winter, when the diesel engine burned out (I even know why it burned out, yes)).
It was boring in the evenings and I dreamed we had a hard disk for such events. Jaska was the popular name for the railway's power station, which was common among railway workers. Basically a 1 kW gas generator. A rare shortage at that time and of course not for private individuals.
I now have 7 generators and about 5 battery positions on my DPR sites.
Actually, I mean dreams tend to come true and it's very important to get them right.