There are trams that do things similar to that, for instance some Alstom trams switch between APS and catenary at some stops. For buses, you might be intereste

There are trams that do things similar to that, for instance some Alstom trams switch between APS and catenary at some stops. For buses, you might be interested in this: https://www.oppcharge.org/ https://www.oppcharge.org/