Tesla chief Elon Musk said on Twitter on Friday that a county fair and factory tour are to take place, and residents of Brandenburg and Berlin would have priority.

“But also open to general public,” Musk added.

Tesla is building what the company claims is the most advanced high-volume electric vehicle production plant in the world.

Originally, production at the so-called Tesla Gigafactory was supposed to start in July, but the end of the year is now the target date.

The delay in starting production is due to a series of issues, including the processing of paperwork, such as an environmental permit to be drawn up by the Brandenburg authorities.

Brandenburg has given no date for a decision on the Tesla permit. Musk hopes that the approval process for the factory will end in October, but the Brandenburg state government has reacted cautiously.

The deadline for possible objections to an amended permit application by Tesla is August 19, the state ministry of the environment said in Potsdam on Friday.

Then the objections and comments of the authorities would be assessed.

“A concrete date for a decision on the application can therefore not be given at this time,” the ministry said.

Environmental groups have a range of concerns about the project and have filed several lawsuits against preliminary partial approvals.