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Discussion Starter #1
I live in Central Texas, where daytime temperatures can hit 100F or more (38C) for weeks during the summer, and I will commonly need to leave my car sitting in an unshaded parking lot for most of my work day. So I have a few questions about how the I-Pace will operate in that heat.

Firstly, I'm concerned about the degree of tinting and heat rejection of the glass roof (the only roof option on U.S. models). From online photos and videos, it looks about as dark as a Tesla Model S roof, but maybe not as dark as a Tesla Model 3. I've driven the Model 3, and I think its dark roof does reduce glare acceptably in the Texas sun, and it's acceptable heat-wise too. Tesla do offer a pop-in fabric sunshade for the front roof panel too, which darkens and insulates even more. However, on the I-Pace side, there looks like a (probably?) lighter roof, with (probably?) less chance of any additional pop-in sunshade, because of the size of the single glass panel. So I'm a bit worried about that.

Secondly, does anyone have any information about whether the I-Pace will actively cool its battery while parked? Teslas can do this automatically, activating the compressor to send coolant through the battery when parked, at the expense of a mile or so range lost per hour due to battery draw. Over time, this should help to prevent battery degradation in hot climates such as mine. So, does the I-Pace also do this? I have heard some mention of thermal management while driving, but not while parked, so I am wondering.

Thirdly, does the I-Pace have any method of keeping cabin temperatures from getting too high while parked? Teslas do this with their Cabin Overheat Protection feature - now standard on Model S, and either standard or being rolled out on Model 3 (not sure). The primary value of this feature is safety, to reduce deaths of children and pets accidentally left in the car. But there must also be value in not subjecting interior materials and electronics to overly extreme temperatures. I have not heard any mention of the I-Pace having anything like this. Does anyone know any different?

My guess is that, of these three features, Jaguar most likely are implementing active battery cooling while parked, but that I'll be out of luck on the other two (glass roof likely to be a bit glary/hot in Texas sun, and no equivalent to Cabin Overheat Protection), but I'd love to be wrong! :wink2:
 

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Just move to North Dakota
Oh never mind, it gets very cold there, that's also not good

iPace comes with a can opener to open up the roof for ventilation
 

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Special glass is supposedly used in the i-Pace for heat rejection. >100°F temps might reduce range but the newer chemistries are more heat resistant. LG Chem in particular in conjunction with General Motors battery lab, worked on widening the operational temperature range of the batteries used for EVs.

The i-Pace has undergone more miles of testing than usual for EV projects. 1.5 million miles using 200 cars as of Dec 2017. While nobody knows what the future will hold, it is likely that Jaguar will have a more mature Year One retail car than anyone in Europe.
 

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Firstly, I'm concerned about the degree of tinting and heat rejection of the glass roof...
If the stock tint and glass don't cut it for you, you can simply add an interior tint or exterior vinyl layer. I'm not a fan of the glass roof, but if it's a problem, and that's a big if, then the solutions are many and easy. The Model 3 I drove on a sunny California day wasn't an issue whatsoever. I didn't even think, until after the drive, about the roof. That's how good it was.
 

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Discussion Starter #5
Right, we will have to see whether the roof tint and heat rejection of the I-Pace are as effective as that of the Model 3. As for adding tint film later, though, there seems to be a disturbing theme on the Model 3 forums of the roof glass panels cracking when some people tried that. Possibly this isn’t a real issue if you go to the right installer, but it does make me nervous about trying that on the larger I-Pace roof.
 

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I think the tints causing cracks is correlation, not causation, as untinted ones have cracked too on the Model 3 and X.
 

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Discussion Starter #8
Yep, thanks for that info about the roof. I'm now more confident that the roof tinting and heat rejection will be adequate. But I will say that when I drove the Model 3, I could feel a little heat radiating from the roof. I am 6' 4", though, so I was within a few inches of the glass. Now if only we could find out about my "parking-lot" questions - are the battery pack and cabin actively prevented from reaching extreme temperatures, even when the car is unoccupied? (both selling points for Tesla - even the Model 3)
 
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