On 30/09/2017 00:43, Graham J wrote:

Providing heat for these requirements - even if the vehicle is
spectacularly well insulated - will be an additional drain on an
electrical vehicle.

By contrast cooling from an air conditioning system isn't really
necessary in the UK. There are of course a few days most summers when
it's nice to have ...

I would suggest that a decent heat pump AC system is essential for
battery powered cars! Since its a far more efficient way of heating and
demisting. (also not many people would be so keen to buy a car without
AC anyway these days)

--
Cheers,

John.

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