Tesla Doubles Berlin Cell Capacity to 18 GWh
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- Tesla announced a ~$250 million additional investment in battery cell production at its Grünheide factory outside Berlin, more than doubling the site's planned capacity from 8 GWh to 18 GWh per year, with cumulative cell-production investment now approaching €1 billion ($1.2 billion).
- Tesla said cell production will require more than 1,500 employees, confirmed recruiting has already begun, and targets first cell production in the first half of 2027; if the 18 GWh capacity is achieved, Grünheide would produce enough cells for roughly 250,000 to 350,000 vehicles per year.
- Elon Musk sent a pre-recorded video to roughly 11,000 Grünheide workers in late February warning that expansion would not happen if IG Metall won a works council majority, saying 'things will certainly get more difficult if there are external organizations pushing Tesla in the wrong direction' and 'we will not close the factory, but realistically we will also not expand.'
- IG Metall's vote share collapsed from 39.4% in 2024 to 31.1% in the March election; the Tesla-aligned Giga United list took 24 of 37 seats, and IG Metall has filed a legal challenge alleging unlawful interference in the vote.
- Giga Berlin is emerging from a severe downturn — the factory was running at 40% capacity earlier this year after European sales fell 28% in 2025 and German registrations plunged 48%, with Tesla shedding roughly 1,700 jobs; rising demand for the refreshed Model Y has since prompted plans to hire 1,000 new workers and boost production 20%.
Why it matters: The sequence speaks for itself: Musk publicly tied expansion to rejecting IG Metall, the union's vote share dropped 8.3 points, Tesla's preferred list won a supermajority, and two months later the exact kind of investment Musk dangled is materializing as 1,500 battery jobs and an 18 GWh capacity target — a labor-relations precedent European manufacturing will be studying while IG Metall's legal challenge runs in parallel.
