Well, I've made it to Golden, BC. Its been slow going in these really cold temperatures, I've experienced as low as -27 C / - 17 F.
Often times the air is so dense that even if I'm going a slight downhill, I'm still having to push against the cold car. This makes it so I'm only getting good regen on really steep grades.
Today I went pretty slow, from Banff to Golden, BC, averaging about 45 mph. At this speed, and a good downhill grade, I was able to achieve a potential range of 93 miles. Temperatures varied between -17 and 5 F. Estimated battery capacity was 16.7kWh.
Tomorrow will be the toughest leg of the trip, before I hit the sting of Fast Chargers in interior BC. I'll have to go 147km on one charge. I'll likely not be able to make it, and will have to stop off at an RV park for a bit of a top-off mid route. I have a mostly downhill elevation gradient, but have to first climb a 1600 ft pass before descending 2800 ft. If the temperatures were a bit more warm, I don't think this would be a problem; I'm hoping for some slightly warmer temperatures tomorrow.