[lcr]

Well, that was not really my point about height, I was just drawing attention at how ridiculous it would be to see, for example, a sedan (about 1.4 meters tall) connected to an overhead wire that is any where from 2.5 to 3 meters (about the height you would need to be able to pass a swap body) in the air.

Like I said, it is technologically possible, but for most intents and purposes seems like a wonky solution, at least for personal vehicles, mass transportation and freight are completely different scenarios.

As for the other points, you are right, there are fairly straight forward solutions.

Inductive charging is definitely a good option, which has already been explored by transport companies[1]. It again seems to be that politics and money are the main barrier for implementation.

[1]http://primove.bombardier.com/products/charging.html