CTA electric buses(time will tell)

[RJ]

Cheaper to have trolley buses but not as sexy. . .

Fred -

Very true, but then you get the wackos screaming "visual pollution!"

[CrabbyMilton]

Cheaper to have trolley buses but not as sexy/

But not practical. Unless you have a battery backup, those things will crap out if they lose the connection or a power failure and they can only go where the wires are anyway. History has been there done that.