ModeratorSeptember 3, 2021 at 7:07 am
Ken, you wrote, “Aptera has no way of actively discarding excess heat when it’s not moving.”
I think you underestimate Aptera’s cooling system potential.
The Aptera has radiative surfaces on the belly, sides and roof of the vehicle, pumping cooling liquid to all those skins. In addition they have a fan driven exhaust vent in the rear of the vehicle. Even if 50KW charging is only 90% efficient, that means they need to radiate just 10%, 5 KW of heat, spread over much of the surface area of the car. I estimate that radiative surface area to be over 8 square meters, so well less than a KW per m^2.