Tesla has more than doubled the 4680 battery cell target for its Gigafactory Berlin, setting a new goal of 18 gigawatt-hours of annual output and pairing the announcement with fresh capital and an open call to startups. The 18 GWh figure eclipses the 8 GWh plan the company laid out just months ago in December 2025, and signals a renewed push to make the Grünheide site a genuine European manufacturing hub rather than a downstream assembly point.
$250M Injection Anchors the Ramp
According to reporting from Tesla-tracking outlets citing verified sources, Tesla is committing an additional $250 million into Giga Berlin's cell manufacturing lines, bringing cumulative investment in the site's battery operations to roughly $1.45 billion. The company projects the expanded facility will begin producing 4680 cells in the first half of 2027 and support somewhere between 200,000 and 350,000 vehicles annually once fully ramped. Battery cell and finished vehicle production are set to run in parallel at the site, adding more than 1,500 jobs to the region.
Cell Giga Challenge Opens the Door to Startups
Alongside the production target, André Thierig, head of Gigafactory Berlin, launched the Cell Giga Challenge, an initiative inviting outside companies to pitch on materials science, production processes, equipment design, automation and AI applied to 4680 manufacturing. Unlike a typical corporate hackathon, selected startups will be offered paid pilot projects directly with Tesla's 4680 cell team — a rare degree of access into one of the industry's most closely guarded operations.
Well Below the Original Vision, but Above Reality
The 18 GWh target is still a fraction of the 100 GWh Elon Musk floated in 2020, and light-years from the 250 GWh long-term ceiling that was scrapped in 2022. But it is a dramatic step up from where Giga Berlin has actually operated so far, and dovetails with Tesla's broader effort to secure European cell supply as it launches a driverless robotaxi service outside Texas and pursues aggressive vertical integration.
The move also lands as European battery investment ramps up: Reliance is raising its Jamnagar target to 120 GWh, American Battery Factory just signed a 4.5 GWh LFP offtake, and Alsym is committing 9 GWh to sodium-ion mining batteries. Tesla is signalling it wants to hold its European ground rather than cede it to Chinese and Korean players.
Reporting based on coverage from Basenor and TeslaNewswire (July 6, 2026).