On 17 Jul 2022 at 13:15, Mr. Sharkey via EV wrote:

> The point being, not every idea makes sense from the standpoint of 
> practicality and consumer acceptance

As I see it, and admittedly I'm not an expert, for solar EVs with onboard PV 
to be really practical - for widespread adoption rather than as showoff rich 
boy toys - a few little tweaks need to happen.

- PV conversion efficiency has to improve radically
- PV cost has to decline radically
- PV durability has to increase radically

Impossible?  Of course not, but when?  It took about 25 years for EV lithium 
batteries to get from notion to production EVs.

Also, don't forget the environmental changes needed to keep the sun shining 
on solar EVs.

- Remove trees and buildings blocking sunlight from roads and parking
- Tear down garages and carports (or use them for other things)
- Disperse clouds and banish rain
- Ideally, eliminate night and winter :-\

No matter how good PV tech gets, it will ALWAYS make more sense to put your 
PV on your house and/or garage, save the output in a battery or the grid, 
and charge your EV with that energy at night.

But the solar-car true believers just won't wake up from the dream of a car 
that runs on pure rays, that you never have to plug in.  (Where have I heard 
that before?)

And maybe that's OK.  Knowledge beats belief, but if everybody listened to 
the experts who say it can't be done, nothing would ever change.  If Martin 
Eberhard and Marc Tarpenning had listened to all the "experts" who said that 
road EVs weren't practical, they never would have started Tesla.  We'd 
probably still have EVs by now, but probably not as many, and probably not 
as capable, and probably not legally recognized as future transport in the 
EU.

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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