The biggest problem with his article is that his calculation is based on 4.8 VOC/Gallon. More than twice the 2.1 VOC/gallon actual number that has been used in California paint shops for years. So you can more than double the capacity he claims on that fact alone. Tesla wouldn't be spraying with a product anywhere near 4, let alone 4.8. Clears and primers have been 2.1 for ages. Color coat can also be that low, especially if it's water-based.
Do you have any sources for this?
Thanks.
BTW, if that is the case, then the emissions limits are actually sized well above the entire 520,000 if you take into account his other errors with throughput and paint per vehicle.