On 27 Sep 2014 at 0:53, Cor van de Water via EV wrote: > there is a (low) speed under which the Stella will consume less than > the panels in full sun produce and above that it will drain the > battery.
This is precisely what I said in the previous message. The car's specs as given don't support the claim that it can self-sustain 40mph purely from the PV input. Now, IF the Wh/km specification actually refers to some speed well above 40mph, or to a high-consumption non-ideal driving cycle - THEN it might indeed be possible for the vehicle to PV-sustain at that speed under ideal driving conditions. They would have to be much more favorable conditions than those at which the Wh/km specification was measured. In fact, one would hope that a vehicle supposedly designed to compete in the Solar Challenge would be able to do just this - travel at more-or-less highway speeds using only energy from its PV input. That's precisely the Solar Challenge: "Crossing a continent in a single stage using only sunlight as fuel," according to their website. But again, this car's specs >as published< don't support the claim. Maybe someone familiar with the vehicle can clarify the specifications - specifically, the conditions under which the Wh/km figure were measured. I would add that for an EV hobbyist, building a car like this would be one heck of an undertaking. Maybe Lawrence can do it. I would love to see him succeed. I know I couldn't. David Roden - Akron, Ohio, USA EVDL Administrator = = = = = = = = = = = = = = = = = = = = = = = = = = = = = EVDL Information: http://www.evdl.org/help/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Note: mail sent to "evpost" and "etpost" addresses will not reach me. To send a private message, please obtain my email address from the webpage http://www.evdl.org/help/ . = = = = = = = = = = = = = = = = = = = = = = = = = = = = = _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
