In message , at 07:00:30 on Tue, 22 Jan
2019, Basil Jet remarked:

Bear in mind also that the infrastructure to charge overnight
includes extra grid feeds to provide the power to the
garage/parking-lot.
If the buses were running on power from overhead lines, not only is
the demand spread over 16hrs rather than 8hrs, but it's likely that
at least some could come from existing feeds for the overhead lines
as they traverse the wider area.

Buses only working for 16 hours a day! In the provinces maybe.

Nah, out in the provinces it's more like 9hrs a day if you are lucky.
And that's the bus *routes*. Individual buses aren't running 20hrs a day
even if there are timetable slots for a few late night/early morning
ones.

However, the proposition that 16hrs is an underestimate makes my
original point even more relevant!
--
Roland Perry