@FediThing @goatsarah @stevelord the marginal cost between a trolley electric and pit-stop-charging bus battery will be negligable - electric double deck bus costs £450K, (diesel is £300K) says google, for reference. More google says £200 per kilowatt hour, big 300kwhr battery is £70K, so you'd save maybe 50K per bus
Overhead line gear is in the millions per km on a good day... and then you have to *still buy a bus*.
Or buy 4 or 5 go anywhere buses
Wires for trams great. Buses, nah