Tesla’s 4680 battery cell production facility is ramping its operations
I did strongly suspect Elon and Drew were sandbagging, however you can't tell the production rate and yield rate of a factory, from the car park.
2 other interesting things we were told or that were rumored. (before Battery Day)
- Tesla Semi packs were apparently going to come from GF Nevada (shipping 4680 cells from Fremont to Nevada is odd, but possible)
- GF Nevada apparent had one line converted to a new higher density formula.
Prior to Battery Day I concluded this new line at GF Nevada was probably making cells for the Semi
But like most people I now think the Semi has new High Nickel 4680s...
Then we comes to an older rumor (news report in a Korean paper), Tesla buying battery formation equipment apparently for Fremont, Berlin, Shanghai and Nevada.
At the time I also thought that rumor was significant, but now we learn at Battery Day that Tesla has their own cell formation equipment.
My best guess now is this is a fluid and rapidly changing situation, even if we guess right and read the tea leaves correctly at a point in time, plans will change as soon as Tesla discovers a better option, or hits an issue.
So overall I've still got some niggling suspicion of sandbagging, or more accurately conservative estimates. If something goes wrong, that might just chew up a built in project buffer. Because this is all new, things can still go wrong/right and things can still change.