[flextheruler]

What’s the proposition to “electrify” trains? Batteries or a live wire everywhere there’s train tracks?

Both seem really inefficient to me with our current technology.

[TremendousJudge]

Yes, around the world electric freight locomotives are powered by overhead lines, and more occasionally by a third rail. It is a mature technology and the US is an exception among industrialized countries (China, all of Europe, Russia, Australia, Japan, etc) in that they use only diesel for freight.