Tesla, SpaceX confirm 'Terafab' chip fab site — $16.8B first phase
Electrek
Tesla and SpaceX picked Grimes County, Texas for Terafab, a giant chip plant, first phase costing $16.8 billion. They say it'll be the biggest fab on Earth, but the paperwork admits none of it's actually locked in yet.
Based on reporting by Electrek — read the original for the full story.
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Elon Musk's two companies have finally put a pin on the map for Terafab, the chip megafactory he first hyped back in March. It's landing in Grimes County, Texas, about an hour outside Houston, on the site of an old coal plant's reservoir. Tesla and SpaceX say the first phase will run $16.8 billion and eventually cover more than 100 million square feet, a footprint they're branding as the largest chip manufacturing site anywhere. Tesla put it bluntly on X, arguing that Tesla and SpaceX together will need more chips than the entire global industry can currently make, with a stated target of over one terawatt of compute per year.
The plan calls for something no chipmaker has really tried: logic, memory, packaging, and testing all under one roof, feeding Optimus robots, Cybercabs, and the orbital data centers SpaceX wants to launch. At least 3,000 jobs are promised, mostly for locals, and SpaceX says it'll draw water from the old Gibbons Creek Reservoir instead of local groundwater, clearly trying to head off the kind of water fights that have dogged data center projects across Texas.
But the number keeps sliding. Musk opened with $25 billion in March. Now it's $16.8 billion for an "initial phase," with everything after that left conveniently unspecified. SpaceX's own IPO filing in May didn't help the story, describing Terafab as a "general framework" with no finalized IP split and no binding commitment from either company to actually follow through. And reporting before that suggested Tesla wouldn't even run the fab itself, with Intel expected to handle manufacturing.
None of this touches Tesla's actual chip supply today, which is already locked up elsewhere. Samsung's Taylor, Texas fab is producing Tesla's AI5 chip now, backed by a $16.5 billion deal for the next-gen AI6, and TSMC fills in the rest. So Terafab isn't solving a near-term problem — it's a bet on Musk's much bigger, much fuzzier claim that his companies will someday out-consume the entire chip industry. The scale numbers don't really hold up against anything that exists: 100 million square feet dwarfs TSMC's biggest fabs, and TSMC's own $165 billion Arizona buildout covers six plants that are still smaller than what Musk is describing for one site.
What's changed since March is that there's now a county, a site, and actual permitting instead of just a slide deck. That's real progress. But the same SpaceX pitching this as the biggest fab ever told IPO investors months ago that none of it is contractually locked in. Both of those things can't be entirely true at once, and how much of that $16.8 billion — and whatever comes after it — ends up on Tesla's books is the number that should matter most to anyone holding the stock.
My take — AI-written commentary, not fact-checked reporting
Musk has a well-worn playbook of announcing a jaw-dropping number, then quietly walking it back once the paperwork has to survive lawyers and investors, and Terafab fits that pattern exactly. A county and a groundbreaking are nice, but "general framework, no binding commitments" is not the language of a done deal — it's the language of a press release wearing a hard hat. Tesla shareholders who signed up for an EV company are increasingly funding a compute empire for robots and orbital data centers, and at some point someone should ask them if that's actually the bet they wanted.
Read more about this at: Electrek
