Not quite connected, but two stories...
We were working on an old hill top forte which was being converted into a large home. No power ever on site according to DNO.
Digger driver began to dig a trench for services, and hit a pot ended cable in the ground near the footings. An LV PILC cable, and of some size. It was live, but DNO had no idea where from! Hill top forte with the closest farm around 800m away. No tranny or anything in vicinity. They pot ended and abandoned this unknown cable!
We carry out work for a large conservatory company, ad have a set price to install four double sockets and a light in each conservatory, it's factored into their quote.
Turned up at one job, and the fitters were using a genny. It turned out tree was no mains at this little remote cottage, never had been, and to get power there was around £100k! The old couple were used to no power, and had no intention of having it installed. They wanted the sockets putting in though, for future generations....