dozens of issues repeatedly raised about the 2170 nonstarter in the remotely near term
Just to further support your argument that a 2,170 cell based Model S/X refresh is unlikely this year, I found these remarks JB Straubel made in the Q4'2017 earnings conference call:
Romit Jitendra Shah - Nomura Instinet
Yes. Thank you. It sounds like from the letter that you could do more than 100,000 S and X in 2018, but you're constrained by the 18650s. And I'm just curious what would it take to see the 2170 cells in these vehicles?
Elon Reeve Musk - Tesla, Inc.
Yeah.
Jeffrey B. Straubel - Tesla, Inc.
Well, this is JB. It's something we've of course contemplated, but it's quite a large change to the architecture of the module and the battery pack overall. And while the 18650 supply is somewhat of a cap at about 100,000 units per year, even just a few months ago we didn't feel that expanding and making some long-term bets on expanding that supply with Panasonic in Japan was really the right risk. It's something we could consider, but right now we're pretty happy with that balance and it matches our other production capabilities and our other investments.
Elon Reeve Musk - Tesla, Inc.
Yes. It's also like for any given complex manufactured item, in order to go past the total capacity you really need to move the whole supply chain in cadence.
Jeffrey B. Straubel - Tesla, Inc.
Exactly.
Elon Reeve Musk - Tesla, Inc.
So, you really have to then shift everything to say, okay, if you want to make 20% more S and X, everyone has to make 20% more.
There have to be investments in new lines or it's going to require over time, which negatively affects gross margin. Kind of design the manufacturing machines are to create ..., and then you'd have to redesign the machine or go redline. And so I think we feel pretty good about the 100,000 a year for S and X, and we want to focus on just improving the efficiency of production and gross margin.
Romit Jitendra Shah - Nomura Instinet
Thank you. Okay. Yes, it makes sense.
Jeffrey B. Straubel - Tesla, Inc.
We are keeping the course on Model 3. I mean, that's really where the majority of the effort is.
Elon Reeve Musk - Tesla, Inc.
Yes, okay. Exactly.
Key takeaways:
- Tesla investigated whether S/X should use the 2,170 cells, but decided against it due to complexity and the impact on the battery pack.
- Instead Tesla investigated whether to expand 18,650 cell battery supply with Panasonic, and decided against this as well.
- JBS and Elon are pointing out that scaling up S/X production affects the whole supply chain as many of those suppliers would have to scale up their manufacturing capacity as well.
- Even a 20% increase in S/X production capacity would have resulted in non-trivial capex, and they decided against it.
And all that was decided back in times when Tesla didn't cut back on capex and opex.
Conclusions from that:
- Migration to 2,170 cells is not going to happen anytime soon - certainly not in 2019. (I previously thought this would happen, but I was wrong.)
- Tesla is (correctly) trying to maintain S/X production as their cash generation machine, watching margins over everything else. The elimination of the 75D should be seen in this light.
Speculation:
- Introduction of a new 18,650 based pack might be possible in the next couple of months - but I'd guess in the 105-110 kWh pack range at most, and perhaps combined with using the new more efficient drive trains from the Model 3. This would allow the introduction of three S/X variants: "Long Range" (330 miles) "Very Long Range" (400 miles) and "Performance".
- It might even be possible to introduce a refreshed drive train that improves range and performance, rename the refreshed 100D to "Very Long Range" (380 miles) and the P100D to "Performance" (with acceleration improving to 2.2 secs from 2.3 secs, and range improving as well), and re-introduce the 85D battery pack with the new drive train as "Long Range". The advantage of this approach: they'd not have to touch battery pack assembly lines, if they otherwise preserved their 85 battery pack production capability.
I still think the 'interior refresh' will come after any battery/range refresh, because executing it in that order would capture the maximum amount of demand.