M3 vs MY efficiency

[Jyz002]

I had a M3 which I've driven over 8,300 miles with about 213Wh/Mi with grandma driving, would be much lower if we didn't have to blast AC during the summer.

I just got the MY and noticed that the battery usage is about 15% higher even though we do not turn on the A/C, namely the "driving" section of the battery efficiency page shows much lower savings from my usual driving habits.

On a side note I also noticed the "other" category in the page is about double of expected.

Anyone else noticed the same and is this expected going from M3->MY? I think heavy rain may have driven some of the efficiency loss in my current charge.

 

[thesmokingman]

I had a M3 which I've driven over 8,300 miles with about 213Wh/Mi with grandma driving, would be much lower if we didn't have to blast AC during the summer.

I just got the MY and noticed that the battery usage is about 15% higher even though we do not turn on the A/C, namely the "driving" section of the battery efficiency page shows much lower savings from my usual driving habits.

On a side note I also noticed the "other" category in the page is about double of expected.

Anyone else noticed the same and is this expected going from M3->MY? I think heavy rain may have driven some of the efficiency loss in my current charge.

The difference is written on the sticker man, should be no surprise.

 

[Jyz002]

The difference is written on the sticker man, should be no surprise.

Right I was expecting a 10% loss based on the EPA rating, but I'm seeing 15% despite the M3 being elevated due to summer AC blast, so realistically it might be close to 20%. I've also never had a situation where I don't have at least 10% savings from the "Driving" category of the battery monitor, but on the MY it's less than 5%.

 

[Jimmumy]

I'm sure someone has figured this out already. I purchased a Model Y LR about 1200 miles ago. I use the Charging Stats on my iPhone's Tesla APP to track our daily overnight charges from our Wall Charger so I can track the the efficiency of the car and how its mileage compares. Over the first month, 800 miles of 20-30 miles/day city driving, I noticed the MYLR used almost 400 Watts/mile (new guys always have a lead foot I guess). Then we took a 400 mile highway trip and the efficiency improved to 340 Watts/mi (~3 miles per kW). That is still not good, right. But when I look at what the car tells me on "TRIPS", it says our lifetime (1200 miles) driving has averaged 264 Watts/mile (3.9 miles/kW). It says we are doing real well. My quandary is this: when I compare the car TRIPS screen it shows reasonably good efficiency (264 Watts/mile, about 3.9 miles/kW) for the lifetime of 1200 miles. But the stats coming from my Tesla APP where I've logged in every overnight charge shows a much higher usage (350 kW/mile, about 3 miles/kW)! That's almost a 30% difference between what the car shows on its TRIPS screen versus the APP. Am I seeing a drain while the car sits? That's about 100kW lost over six weeks (2.5 kW/day). That's over a "tank" (70kW) of electricity every month. That's one big LEAK of electricity while the car sits in the garage! Any ideas?

 

[exxxviii]

That's almost a 30% difference between what the car shows on its TRIPS screen versus the APP. Am I seeing a drain while the car sits? That's about 100kW lost over six weeks (2.5 kW/day). That's over a "tank" (70kW) of electricity every month. That's one big LEAK of electricity while the car sits in the garage! Any ideas?

Depending on your charge rate, you are getting 5% to 15% in losses during charging... Energy going through the charger that does not end up in the battery.

 

[Jyz002]

Depending on your charge rate, you are getting 5% to 15% in losses during charging... Energy going through the charger that does not end up in the battery.

To add to this, battery drain while parked doesn’t get in that calculation either

 

[K-ev 1]

Our model3 sr+ is running at 216whpm thats over 27,000 miles

 

[boulder.dude]

To add to this, battery drain while parked doesn’t get in that calculation either

To further add to this, energy usage while parked (e.g. climate control) isn’t counted in TRIP either.