If this is true, what happens to 500k production plan by 2018?
It is clearly a phased expansion. Tesla has said this in the past. Here are some relevant quotes:
2/11/2016: Q4 2015 ER
Jason Wheeler - Chief Financial Officer
"We also had some asset impairments, one with our old paint shop. And we've now got a state-of-the-art paint shop in place, which is going to give us the capacity that we need all the way through Model 3."
Elon Reeve Musk - Chairman & Chief Executive Officer
"Yeah, that's 10,000 cars a week, too."
From Eisenmann's press release
Tesla Motors building the world’s most advanced paint shop – with Eisenmann technology - Eisenmann SE
"Tesla plans to increase production capacity from 30,000 to 500,000 units annually in two stages – and two fully automated painting lines from Eisenmann will help to accomplish this goal. One will be used for car bodies, and the other for components such as bumpers and rear-view mirrors."
Therefore, we are talking about two phases, one of which is currently painting cars, and the 2nd phase, which brings us to 10,000 cars a week. The question is how many cars can they paint in the first phase and the timing of the 2nd phase. Given the Daily Kanban article's various mistakes, I'm thinking 250,000 to 300,000 for the first phase. That should cover enough for 2017 without a problem. They can always also apply for temporary changes in the allowable limits as they bring the 2nd phase online. Clearly, Air Quality Board is prepared to let Tesla paint for 520,000 vehicles, as granted in 2015. So the intermediate limits can of course, change as needed.