Why bother with battery powered HVAC for scheduled service vehicles? If you
know the schedule, just preheat/precool some thermal mass. Lots of mass in
the batteries themselves and you can supplement that with water.
An awful lot of joules in a 100kg of hot water or ice. Thermal storage is
energy storage just like batteries but cheaper.
100kg of 100 deg C water = 4184*75C-delta-t*100kg = appx 8.7 kwh
And then of course there is just people not being pansies....
Through Rain, Sleet, and Snow the mail must get through.....as long as we have
climate controlled vehicles.
I know the local UPS and FEDEX vans don't have air conditioning
On Sunday, June 22, 2025 at 07:40:49 PM PDT, Evan Foss via EV
<[email protected]> wrote:
It's not just the start and stop cycles. It's all the time opening
and closing the doors etc that push the limits of battery powered
HVAC. Transit buses have a similar problem.
Electric consumer vehicles are what we should focus on protecting.
On Sat, Jun 21, 2025 at 11:53 PM Rod Hower via EV <[email protected]> wrote:
>
> What the F!!! is wrong with these people? Mail vehicles have always been
>ideal for EV's with start-stop cycles. I guess if they are cheap enough I'll
>buy one for a work vehicle!
> On Saturday, June 21, 2025 at 09:34:23 PM EDT, EV List Lackey via EV
><[email protected]> wrote:
>
> I have no words, at least none printable.
>
> > The Senate's version of Trump's One Big Beautiful Bill would see the
> > General Services Administration take possession of the nearly 7,200 new
> > postal EVs and associated infrastructure and put the assets up for
> > auction. The proposal is unlikely to generate much revenue for the
> > government; there is almost no private-sector interest in the mail
> > trucks, and used EV charging equipment -- built specifically for the
> > Postal Service and already installed in postal facilities -- generally
> > cannot be resold.
>
> Full story:
>
> https://www.washingtonpost.com/business/2025/06/21/trump-usps-trucks-taxes/
>
> Shortcut:
>
> https://cntp.me/JYUK9fV
>
> David Roden, EVDL moderator & general lackey
>
> To reach me, don't reply to this message; I won't get it. Use my
> offlist address here : http://evdl.org/help/index.html#supt
>
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>
> Failure is not an option. It comes bundled with every Microsoft
> product.
>
> -- Ferenc Mantfeld
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>
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