One reason for EV range reduction in winter is the fact that usually vehicles have to run in fresh-air mode to prevent window fogging. GXC have developed a window coating, which causes humidity to condensate as a transparent film rather than opaque droplets (fogging). Accordingly much higher air recirculation rates are feasible (as also shown by tests done by GXC Coatings). But what is the resulting range benefit?
KULI complete vehicle VTM simulations (based on a calibrated baseline vehicle similar to Tesla Model S) show a range improvement potential of up to 11% in winter conditions (warm-up at -10°C ambient temperature).