According to Tessie, the average new pack capacity for cars at zero miles (Refresh MS) is 96.3. That implies few see full rated range on delivery. I don't think that is the case based on fleet data from Teslafi.
Tessie has a lot of ”issues” if it is ok to use that term. Not to bash it, but to sort out some if them.
Tessie using OTA data can not see the nominal full pack number. They need to calculate the capacity. They do it by using the charged energy nymber and compare to the SOC change = that gives the capacity, but the whole capacity as the cars report the charged energy but adds the 1/0.955 (4.7%) buffer to this.
The cars shows the true 100% capacity at 100% but progressively hides the buffer during the drove when the SOC reduces.
Charging “Un-hides” the buffer, thus adding 4.7% more than the true charged energy to the “+XY kWh” on the screen.
So, Tessiea capacity is the whole capacity inlcuding the buffer. (They changed it from “usable” to “capacity” which was good).
Looking at the EPA tests the Plaid on 21” got 99.3 kWh out of the battery and the Plaid with 19” got 99.4kWh. This is very much inline with the 99.4 kWh full pack when new.
I did a 300 km drive to the SC today, at the SC there was 2.4% used from I leaved the car until getting it ~ 6hrs later (part of it was waiting before/after service with sentry on.
I drove another 132 km on the way back before charging (btw, very happy with 432km highway winter range in -8C) including preconditioning for supercharging.
88kWh was used (driving) plus the 2.4% at the SC plus 3% rest at arrival.
I had 4.5% buffer, 3% left and SC burned 2.4%. Thats about 9.9% of the total capacity not used to drive.
88/0.901= 97.7 kWh.
Look at the lower picture for NFP and nominal remaining!
What I mean is that the original capacity in normal cases is close to the FPWN and the energy delivered in the EPA test.
Plaid EPA test:
S LR EPA test:
The BMS is probably wrong initially, reporting much lower than the true value.
My had 95.7kWh the day after delivery (after a 1000 km drive home).
I thought it was too low and did a check (described on a few other places here), which confirmed the capacity to be 98kWh despite the BMS NFP value still below 96kWh.
So the initial capacity value is not the same thing as the initial or new capacity.
I think 99.4 kWh is the correct number to start from.