To3OrNotTo3
Member
Admittedly, didn't see @AlanSubie4Life's post yet because I had already loaded the page and started to respond. I might change my mind after I catch up on what he was saying
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EPA efficiency in terms of MPGe are equivalent for the two Model 3 Performances at 113, but there's a difference of 16 miles of estimated range. I'm wondering if this is in fact the 5% difference (15 miles) boost to the batteries Panasonic was supposedly rolling out in September. That would make up for it.
Wow you called it as soon as the numbers came out that Tesla would change the scalar. It would be really interesting if the battery energy density increased as well so they have the option to either unlock it later or hide the initial degradation.Re: Electrek
First, no question other manufacturers often have very poor efficiency.
As a matter of policy, however, many of them use a 0.7 scalar, even if they use a heat pump. Tesla is using a 0.746 scalar for 2021 Model 3.
That results in a 6.6% EPA efficiency advantage for Tesla, but it does not necessarily translate to that in the real world if the two vehicles you are comparing both use heat pumps.
Obviously the total gap is much wider than 6.6%, but that factor explains part of it.
I’m not saying it is not real, but you have to understand what that factor comes from and when it is actually going to translate to real-world benefits.
Wow you called it as soon as the numbers came out that Tesla would change the scalar. It would be really interesting if the battery energy density increased as well so they have the option to either unlock it later or hide the initial degradation.
If they have 5% denser batteries with 2170 cells, eventually that means 370 rated miles for Model 3 (or lighter less dense packs).
Perhaps that buffer is smaller on the P, which would explain the larger energy figure in the 2021 EPA test for the P.
The current speculation is that the US P3D Refresh will now come with Pirelli P-Zeros
That would indicate a wider tire also. Maybe that's where there .1 sec improvement comes from?This was from the EPC before they got removed, so it seems they are 6% wider than the current.
View attachment 603163
That would indicate a wider tire also. Maybe that's where there .1 sec improvement comes from?
I posted about this yesterday. I linked a bunch of places, but not here:
Preliminary EPA Data for Model 3 AWD & Model 3 P 2021 Released
You’ll see the table I provided yesterday aligns with the EPA numbers at fueleconomy.gov which appeared today. The MPGe numbers are just direct calculations from the range results (for the two-cycle and 5-cycle testing).
The number is higher because of better efficiency (nearly half of increase) and the heat pump (a little over half the increase).
There is no battery size increase for AWD. (At least in terms of the energy used in the EPA test - some capacity COULD be locked.)
The Performance does not show yet because they screwed up the recharging event, I think. The efficiencies are placeholders. Though with the actual results achieved, it is about right to just use 2020 numbers.
It’s possible they are installing denser batteries, or batteries that are less populated because of the 5% increase in density. But the battery is not lighter so I doubt the latter. If the former, they could unlock capacity later.
If they install 5% denser batteries, the EPA range will go to about 370 miles.
Any idea why the SR+ hasn’t been re-rated?