On Jul 7, 10:20 pm, Olof Lagerkvist wrote:
Another point with hybrid drive is actually that the engine can run on
most fuel-efficient rpm when it runs, in this case all the time. This
does not matter practically, a small engine can be compensated with
running it constantly and using a larger battery pack, which is what I
think they have done here.

True , but if the batteries are charged already whats the point in
having the engine still running? It would then be no different to a
diesel car sitting in the jam with its engine idling.

surprises me somewhat. Instead of expensive large battery packs,
wouldn't it be better to build a trolley-bus network with trolley buses
with regenerating brakes? Larger initial investment costs probably but

That would involve long term commitment. Not something British
politicians are very comfortable with. Also though the usual Nimbys
would crawl out from under their rocks and start to whinge about the
"visual intrusion" (or some equivalent bull****) of the wires.

B2003