Energy Consumption Display no AC usage?

[Trooper]

In almost three months of owning the car, I’ve actually never looked at this screen until today and noticed something (possibly) odd.

It shows since the last charge total consumption of 11KWh, but no figure for the “AC and other consumers”

We’re having 33°-35°C weather at the moment so I’ve had the AC cooling on pretty much every time I’ve driven since charging.

Just wondering about anyone else’s experience: Possibly the AC just uses far less energy than I assumed, so is a negligible amount & doesn’t show yet?

 

[coff33]

This screen is very buggy, same complaint in Bjorn YouTube video.

 

[agy]

Yes i too, comfort 2022

 

[Trooper]

All good. Looks like 1) I just needed to wait longer and 2) Air-con doesn’t chew up as much power as I thought

 

[Diggsy]

AC uses minimal power from what I’ve noticed. So little that I use it all the time and don’t even give it a second thought

 

[Rolfe]

I'm a little surprised by that because I was always told that the aircon in an ICE car would shorten the range. (Of course ICE cars have heat and to spare, so the heater isn't going to make a dent in anything.)

 

[pollenface]

I'm guessing aircon and other background systems use about 400w

1amp at 400v when stationary

 

[pollenface]

I'm a little surprised by that because I was always told that the aircon in an ICE car would shorten the range.

Sounds like you were told correctly. My ICE cars use 1-2L less per 100kms with aircon switched off.

 

[Trooper]

I'm a little surprised by that because I was always told that the aircon in an ICE car would shorten the range. (Of course ICE cars have heat and to spare, so the heater isn't going to make a dent in anything.)

Yeah me too. I definitely noticed a drop in economy in my old (2006 model) ICE car when using AC, but not so much with the MG4.

Summer’s only two weeks away so that’ll be the real test when we get our regular 40°C-plus days, but am I right in understanding EVs are more efficient in hotter weather anyway? Or is it just charging that’s more efficient?

 

[Coulomb]

am I right in understanding EVs are more efficient in hotter weather anyway?

I think that the main effect is that the battery works better at higher temperatures (but degrades faster as well). So you can more effectively use the capacity that is there. So if you like you get better charge efficiency from the battery in summer. It's debatable whether you would call that a "real" efficiency parameter.

 

[Rolfe]

You don't know you're alive. It's freezing here, and my SR battery has lost quite a lot of range. A journey that used to take 53% of the battery recently took 67% and I think it has further to fall than that still. It's not an issue, because I still have enough to do my regular journeys without stopping, and if necessary I can hook up to a 7 kW charger while I'm at my destination to give me a boost. I've also identified a couple of 50 kW CCS chargers on the way home just in case I think I need five or ten minutes on one of these to be sure of making it.

It's not an issue, I knew the car was going to behave like that when I bought it, but don't think that seasonal variations aren't significant.