Looks like Tesla is beginning to take advantage of the 2016 acqusition of Grohmann Engineering. Analysts from Worm Capital has been reporting of planned installation of machinery from Grohmann Engineering by end of Q3 or beginning of Q4 2018. With the installation of the machinery, the rate of batteryproduction happens should be by a factor 3, and by a third of the cost. This should enable Tesla to produce up to 8.000 Model3’s per week – or 400.000 on a annual basis.
Actually it is not one machine coming from the Grohmann subsidary, but 3 – one for each of the 3 zones in Gigafactory 1. So the production ramp will happen incrementally when installed in the 3 zones.