Tesla invests $250M more in Giga Berlin battery cells, boosting capacity to 18 GWh

Tesla announced today that it will invest almost $250 million more in battery cell production at its Grünheide factory outside Berlin, more than doubling planned capacity to 18 gigawatt hours per year and creating over 1,500 battery-related jobs.

The investment comes just two months after the automaker successfully scared workers away from IG Metall in a contentious works council election — a vote where CEO Elon Musk explicitly threatened to halt expansion if the union gained control.

From 8 GWh to 18 GWh

With this latest round, Tesla is more than doubling its battery cell capacity target at Grünheide from the 8 GWh it announced in December 2025 to 18 GWh. Total investment in the site’s cell production unit now approaches €1 billion ($1.2 billion).

Tesla said in a statement: