Тролейбус and трамвай can both be electric, but тролейбус is not an electric bus. It's a "trolley."
Curious that electric buses have their own word. Is that something unique to Ukraine?
Where is going this trolleybus - wrong?
In English, the subject normally comes before the predicate, so "trolley" has to come before "going."
For anyone else who has no clue what a 'trolleybus' is: it's an electric bus powered by wires overhead.
Apparently trolleybus is a real English word, though here we have neither the word nor the object.