[skjoldr]

The focus of the effort to make overhead charging viable is on large trucks that already drive mostly, but not completely, predefined routes on highways and in cities, which are often too lengthy to only rely on battery packs.

[kube-system]

Others up above were discussing passenger vehicles.

For trucks on the highway, it is a much better idea, but for many of those cases, you'd be significantly better off investing in more rail.

[skjoldr]

Transporting refrigerated goods over moderate distances and last-mile delivery from the train yards are where trucks using overhead cables can shine. I also read that there existed trolleybus lines that went several miles/kilometers between towns that weren't connected by rail. It's especially useful in mountainous terrain.