The Penultimate 2021 Model Y EPA Document

[SageBrush]

Do you find the Monroney sticker laughably deficient in technical details ?
This pdf is for you. It is the (I think) full CSI document for the AWD and Performance models

I found the cold weather testing information most interesting. I also expected to find the SC06 cycle data since I thought that was part of the 5 cycle regime but perhaps Tesla only used 3 cycles ?

One other detail sure to spark interest: the document says the P model has some 4.5 kWh more battery than the AWD. I haven't sat down to see if the other data is consistent with that difference or if it is a typo.

 

[MatildaModelY]

It is pretty well known that the model Y performance has a slightly larger battery.

 

[SageBrush]

It is pretty well known that the model Y performance has a slightly larger battery.

Then color me ignorant, and thanks for the tidbit. Makes me wonder if the Model Y P with AWD wheels would approach the Model 3 in range.

 

[MatildaModelY]

Then color me ignorant, and thanks for the tidbit. Makes me wonder if the Model Y P with AWD wheels would approach the Model 3 in range.

I am thinking the same thing. I routinely get pretty amazing wh/mi with my MYP with 19” wheels.

 

[bjhinkle]

Do you find the Monroney sticker laughably deficient in technical details ?
This pdf is for you. It is the (I think) full CSI document for the AWD and Performance models

I found the cold weather testing information most interesting. I also expected to find the SC06 cycle data since I thought that was part of the 5 cycle regime but perhaps Tesla only used 3 cycles ?

One other detail sure to spark interest: the document says the P model has some 4.5 kWh more battery than the AWD. I haven't sat down to see if the other data is consistent with that difference or if it is a typo.

Where does it say this? Pages 17 and 18 show a Wh/kg and kg that combines to equal 79.2 kWh for both?

 

[TomServo]

It is pretty well known that the model Y performance has a slightly larger battery.

Then it must be hidden from app’s like Scan My Tesla as my 2020 LA AWD and a buddies 2020 P show the same size battery when new.

 

[MatildaModelY]

Then it must be hidden from app’s like Scan My Tesla as my 2020 LA AWD and a buddies 2020 P show the same size battery when new.

2021 model Y P they started putting 82kwh batteries.

In my tessie app it shows the higher capacity

 

[bjhinkle]

2021 model Y P they started putting 82kwh batteries.

In my tessie app it shows the higher capacity

That’s the size in the 2021 M3LR, M3P, MYLR, and MYP.

I think it’s just a size bump across all those, not just Y P.

 

[SageBrush]

Where does it say this?

Page 16, Section 18

The values are metered energy to recharge from empty to full. Note the difference between the models, not the values per se since they include charging losses.

 

[Tabor]

I am thinking the same thing. I routinely get pretty amazing wh/mi with my MYP with 19” wheels.

Curious, what do you consider amazing?

I’m happy with mine around 280-290, but it still relatively new.

 

[Tabor]

I

2021 model Y P they started putting 82kwh batteries.

In my tessie app it shows the higher capacity

Interesting. Tessie has my 2022 MYP at 79.7.

 

[bjhinkle]

Page 16, Section 18

The values are metered energy to recharge from empty to full. Note the difference between the models, not the values per se since they include charging losses.

Amount to charge doesn’t indicate battery capacity. Charging loss can vary quite a bit. From these forums it seems to be between 75-85% efficiency and who knows what variables were at play for those tests. A 10% charging efficiency difference could be an amount to charge difference of 8 kWh, even to the same battery on different charging instances.

The true capacity is privacy better calculated by the calculated energy density.

 

[SageBrush]

Amount to charge doesn’t indicate battery capacity. Charging loss can vary quite a bit.

Not when the identical EVSE is used. The specific loss isn't important, as a little Algebra shows:

L - charging efficiency, value < 1
B1 AC charging of 92.2 kWh
B2 AC charging of 87.6 kWh

Usable = charging kWh*L

B1_usable = 92.2*L
B2_usable = 87.6*L

B1/B2 = 92.2/87.6
B1 = 1.05*B2

 

[Kaisoku(Fast)]

Do you find the Monroney sticker laughably deficient in technical details ?
This pdf is for you. It is the (I think) full CSI document for the AWD and Performance models

I found the cold weather testing information most interesting. I also expected to find the SC06 cycle data since I thought that was part of the 5 cycle regime but perhaps Tesla only used 3 cycles ?

One other detail sure to spark interest: the document says the P model has some 4.5 kWh more battery than the AWD. I haven't sat down to see if the other data is consistent with that difference or if it is a typo.

This document is quite informative. Could you get also the new Model S Plaid information?

 

[SageBrush]

This document is quite informative. Could you get also the new Model S Plaid information?

Search here.

 

[SageBrush]

Here is the American consumption graph for the AWD long range, using the Dyno coefficients from the document.
The spreadsheet for the graph is here, for people who like that sort of thing or would like to check for accuracy.

Please let me know of any errors. I'll add a graph for KPH soon.

 

[SageBrush]

I am thinking the same thing. I routinely get pretty amazing wh/mi with my MYP with 19” wheels.

I'll track down the EPA load B coefficient for the AWD Model 3. Admittedly these are best fit values and should not be taken to reflect actual forces but I'm inclined to guess that the difference in Load B will be due to the wheels+tyres.

Any disagreement ?

 

[SageBrush]

Metric version of consumption graph ..

 

[SageBrush]

I used the Dyno coefficients from the EPA CSI documents to compare Model 3 to Model Y. I'm not sure of wheel/tyre differences.

Note: my earlier graph mixed up set and target values. The graph below uses 'set' values for each car.

 

[jpfive]

Wow. What a thread. Thanks all.