Well, it might make sense for the special-case commute where your pack
isn't large enough to make a round trip but, with solar panels charging
during the day, you "top off" enough to get home.
Solves the can't-plug-in-at-work problem too. In fact, you seek the
un-coveted parking space that gets maximum sun while everyone else is
looking for the space under a tree :)
Peri
------ Original Message ------
From: "Ben Goren via EV" <ev@lists.evdl.org>
To: "Cor van de Water" <cwa...@proxim.com>; "Electric Vehicle Discussion
List" <ev@lists.evdl.org>
Sent: 30-Mar-15 1:26:14 PM
Subject: Re: [EVDL] Making solar work in a conventional vehicle.
On Mar 30, 2015, at 1:13 PM, Cor van de Water via EV
<ev@lists.evdl.org> wrote:
There is a case for cars that get used very little (infrequent or
very short drives) and can be parked in full sun
(like on a parking deck top floor, no trees or other buildings) so
you can gain charge over time, about 5 hours
(full sun equivalent hours that is) per day, for an optimal-max of 5
kWh harvested each day.
...but...if you have the space you can permanently devote to parking
the car like that...you can do far better on every front by putting the
panels over that space, when they can generate power when you've got
the car out and about, and generate more power when the car's sitting
there, and power other things as well, and so on.
The only really not-crazy practical use case I can think of for a solar
EV is for a nomad who's not in any type of a rush to get from one place
to another. (Of course, they make great project challenges, especially
for engineering students -- but they don't try to pretend that the
vehicles are useful general-purpose vehicles).
...and, even if you <i>are</i> the nomad type...you're probably still
better off with the panels stowed away when driving, and setting them
up as a tent-like structure over the vehicle when you've settled down
for a couple days while you recharge for the next few hours of driving.
Come to think of it, even that isn't exactly practical, either.
You know...there's another way to look at it.
All life (within rounding) on Earth is solar powered. Plants,
obviously. Animals eat the plants.
Consider the acreage needed to sustain a person. People are very small
and low power objects compared to high-speed vehicles.
b&
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