Critics complainthat the industrial building is partly being built in a water protection area. The car factory at the gates of Berlin is one of the most important industrial projects in East Germany. Musk originally estimated the construction costs at 1.1 billion euros, but said in the meantime that the budget would be exceeded. For the battery factory, Tesla has the prospect of public funding, which, according to media reports, could also amount to 1.1 billion euros.