Thanks for the elaborate technical explanation. A few missed descriptors, but about the way I'd run the problem if I knew the voltages and conductor sizes.

I can't believe a train with Mw engine would mind the equivalent of one or two passengers for heat and light. And it's always easier to use diesel or gasoline for stored energy. Viz electric cars.

But, as you say, public utilities or profit utilities each have their reasons for pushing the envelope of safety.

I like the failure of the contraction compensators. That's subtle.

Align culture with our nature. Ot else!