[Stevej80]

This will no doubt be obvious to seasoned EV veterans, but i found it interesting none the less.

So i was due into the office for the day today, so i plugged in my 50 last night to charge to 80% with preconditioning set for an 0730 departure. I jumped in, nice and toasty and headed in to work. On a journey of around 14.5 miles, i achieved 3.0 Miles/KWh, with an external of 3.5 and internal of 20. I was very happy with that.

What has surprised me, is my return journey. Similar external temp and the same distance (obviously) and the same interior temp. The journey is relatively flat, so i'm not counting uphill. The only difference is i didnt preheat before leaving and the headlamps were on.

I was pretty shocked to find that the consumption on the way home was 2.1 miles/KWh, this equated to an addition 3% SoC drop also.

I know it seems obvious, but considering as ICE Drivers, we've always had "free" heat, i just never factored in how much of an impact it had. Put simply, i'll be preconditioning as much as i can.

As an aside, is it possible to schedule a charge or pre-conditioning based on GPS location? My XC90 T8 used to allow this, as did the Enyaq i had for a couple of weeks. It would be useful, so i can schedule my off peak charging when i'm at home (but not to impact charging at work).

 

[Fbez]

ICE in cold countries if you warm the engine with heater before the trip same way consumption drop a lot. Not sure there was “free“ heat then

 

[ExiPaceOwner]

I was pretty shocked to find that the consumption on the way home was 2.1 miles/KWh, this equated to an addition 3% SoC drop also.

I know it seems obvious, but considering as ICE Drivers, we've always had "free" heat, i just never factored in how much of an impact it had. Put simply, i'll be preconditioning as much as i can.

On the Ipace (not sure if the IX is the same) pre-conditioning brings the batteries up to temperature as well as the cabin. The batteries work more efficiently at operating temperatures, so not pre-conditioning means less range.

So even with no heating or AC on, the ipace does less miles when its not pre-conditioned.

This link from the iPace Forum explains it better!

 

[DanielE]

On the Ipace (not sure if the IX is the same) pre-conditioning brings the batteries up to temperature as well as the cabin. The batteries work more efficiently at operating temperatures, so not pre-conditioning means less range.

So even with no heating or AC on, the ipace does less miles when its not pre-conditioned.

This link from the iPace Forum explains it better!

Indeed, very true. If you do not pre-condition or pre-heat a lot of the power will in fact go to the pre-heating of the batteries. The behavior you have seen is very normal. Add to that potential rear window heating and you use a lot. if its a short ride, try using efficiency mode or reduce the on board temp. This is exactly the reason the iX have the heated panels, to create a warmer feel without having to waste energy heating the air.

 

[ICS_UK]

Indeed, very true. If you do not pre-condition or pre-heat a lot of the power will in fact go to the pre-heating of the batteries. The behavior you have seen is very normal. Add to that potential rear window heating and you use a lot. if its a short ride, try using efficiency mode or reduce the on board temp. This is exactly the reason the iX have the heated panels, to create a warmer feel without having to waste energy heating the air.

What is interesting the car gives maximum range at an outside air temperature of 15C going cooler and warmer than this reduces the range you can check this out HERE
scroll down and select model / driving pattern

 

[J78]

Preheat also consumes power…not sure if it’s included in the the trip average consumption. If it’s not there may be a possibility that you end up wasting more energy preheating (for comfort when you arrive) than the saved energy on the trip