Gen3
Member
what tires did you get?I put on winter tires, properly inflated, and have taken a huge hit on range. You have both the cold AND winter tires impacting your range.
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what tires did you get?I put on winter tires, properly inflated, and have taken a huge hit on range. You have both the cold AND winter tires impacting your range.
Pirelli Winter Scorpionswhat tires did you get?
You're doing better than me driving around the city. I see anywhere from 180 to 300% higher consumption on my shorter in-town trips. However, on my drive to Chicago over Christmas, I was only 16% higher on the trip there (temps around -1C) and 36% higher on the trip home (temps around -20C). Over the past 5 years, I have observed HUGE swings in efficiency in the winter depending on how and where you drive compared to summer when consumption numbers are very consistent and predictable.
Pre-heating extensively will lower your consumption in city driving, which may explain the difference between you and me. I just pre-heat enough to get the cabin comfy. In town, I don't care if my consumption is higher since I have way more than enough anyway. I'd rather put the juice into the car overnight at off-peak rates than pre-heat extensively at on-peak rates during the day.
Not only this but we are really only taking about driving in extreme situations. We get these types of very cold weather patterns only a four or five times a year. Given that I’m usually just commuting too and from work around this time of year I don’t really think much of it.
Maybe a drive out to Canmore during our next cold spell might help provide some numbers for people to look at on a long range drive when things get very very cold.
Well, where I commute I can get the cost equivalent of something around 10-12 MPG most of the winter.
Extreme? No. Most ill effects happen in normal winter conditions. Losing another 10F because of the polar vortex doesn't matter, roughly same thing as the wind blowing another 5mph faster, which is common.
You don't think about it? Well, where I commute I can get the cost equivalent of something around 10-12 MPG most of the winter. I don't know how bad that is from a pollution standpoint, but it's clearly not good. So you can gloss over all the usability, comfort, and range issues, but the car is still an energy hog in the winter.
Uh? Where are you driving from and to? The model S gets like 100 eMPG, even if it only 50% efficient (really extreme base case) it should be still at 50 eMPG, better than most if not all ICE in the same conditions. In Ontario, 90% of our electricity come from non CO2 sources, so even if the Model S is down to say 20 eMPG (impossible situation) it is still better than the most efficient ICE in terms of CO2 load.
Good point, there are extras that I am not including but I would expect it to be 20-30%. My charge efficiency is about 91% as reported by the car through Teslafi, I onl precondition for long trips and that adds about 2kWh per trip (10%). Vampire loss is about 5% of my kWh usage a day so there is another total 25% overhead that I am not counting. Even with that, the model S is still more efficient than any ICE. From a CO2 perspective in Ontario, it is probably 20-40x better depending on the weather.50% efficiency to plan over a LONG drive, and that's not including charging efficiency or other losses. It's very very significantly worse over short drives, or even just including cold soaking the car 2+ times a day in the winter.
How to arrive at these numbers? Measure energy from the WALL with third party measuring equipment, not as reported by the car. This means you capture everything! Charging efficiency, vampire loss, preconditioning, trip meter fudging, etc, etc. Divide by mileage. Be shocked. (har har har)
50% efficiency to plan over a LONG drive, and that's not including charging efficiency or other losses. It's very very significantly worse over short drives, or even just including cold soaking the car 2+ times a day in the winter.
How to arrive at these numbers? Measure energy from the WALL with third party measuring equipment, not as reported by the car. This means you capture everything! Charging efficiency, vampire loss, preconditioning, trip meter fudging, etc, etc. Divide by mileage. Be shocked. (har har har)
So sure, considering all-in electricity use, you are at least 50% higher on long trips than summer. But from a simple "how far can I go" range situation, I am finding about 15 to (in extreme cold) 40% higher consumption.
It may be because I'm stingy with my use, be "at least 50% higher" is not at all accurate over a long range trip for us. I don't heat the cabin more than 65 (when I even have the heat on) and make liberal use of seat warmers and the heated steering wheel. Usually I can get by with high 300s per mile.
So what did I learn? If you don’t have to supercharge, use range mode. If you do have to supercharge, don’t use range mode.
Probably less pertinent to most owners of newer cars now, but Range Mode makes very little difference on older RWD cars like mine.I cannot tell any difference between having it on or off. I believe with newer cars, it does something to make the dual motors more efficient (cuts one of them out while cruising??). The only thing it seems to do for me is reduce HVAC performance a tiny bit. On long trips that makes no difference because it takes the same kWh to keep the cabin at 70 F regardless of whether it gets to 70 F quickly or slowly.
I guess my overarching point is that in some situations, using range mode can trap you at a Supercharger for much longer than expected (the first Supercharger of a cold trip). I almost got stuck for a while even though I had range mode off and we had driven over an hour to get there.
Only on warm pleasant days. As I said above, I find in winter conditions it's prediction is constantly diverging (not constant divergence) from the estimate. Almost as if Tesla had never tested it with consumption that high :-/ Real world example would be it predicting 15% usage for the drive, diverging constantly throughout the drive ending at a real 40%. I have a feeling how bad this is depends on which model you have.However, for the sake of figuring out how far you can go once you unplug and start driving, the car's Trip calculator is actually quite good.
Only on warm pleasant days. As I said above, I find in winter conditions it's prediction is constantly diverging (not constant divergence) from the estimate.