[email protected] wrote:
> In reply to  Jed Rothwell's message of Wed, 17 Dec 2008 14:49:08 -0500:
> Hi,
> [snip]
>> The Chinese battery company BYD Group lives up to its name, "Build 
>> Your Dreams." This week it began selling a $22,000 PHEV with a huge 
>> 62-mile battery range (not 80 as misreported) to fleet customers in 
>> China. 
> [snip]
> This is understandable, but demonstrates once again that managers have no
> knowledge of science. Fleets are precisely the *worst* market for PHEVs.
> This is because fleet cars are frequently driven all day long.

Depends on what the fleet is used for.

If it's a fleet of delivery vehicles in a large city the total range
needed may not be that large.

I seem to recall that delivery vans for I-forget-which company were once
electric in Philadelphia.  This was about a century ago.  They didn't go
very fast, and made an awful lot of stops.   The lead-acid batteries of
the time were up to the job, but just barely; the range of the vans was
just about equal to what they were expected to do in a day.

This tidbit comes from a half-remembered story told by my grandfather,
who lived in the era of horses, solid tires, and (yes indeed) electric
trucks.

A car used for deliveries which is driven in a "star" pattern, always
returning to home base between trips, might not be such a bad choice for
a PHEV.  (OTOH a car used by a traveling salesman, or a taxi driver,
would obviously be a terrible choice for a PHEV.)



> It is precisely
> the family car (or second car) that should be a PHEV. Personal transportation 
> is
> mostly used for commuting or shopping, where the total distance traveled per 
> day
> is within battery range.
> 
> Regards,
> 
> Robin van Spaandonk <[email protected]>
> 
> 

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