Tesla and SpaceX Confirm Terafab Chip Factory Site in Texas

Tesla and SpaceX have officially confirmed that their jointly planned semiconductor "super-fab," Terafab, will be located in Grimes County, Texas — approximately one hour's drive northwest of Houston. The announcement was posted simultaneously on SpaceX's official website and Tesla's official X account on August 6, 2026.

According to disclosures from both companies, the initial phase of Terafab carries an investment of approximately $1.68 billion, with a planned total floor area exceeding 100 million square feet — marketed as the "world's largest chip manufacturing facility." Its stated goal is full vertical integration across logic chips, memory, packaging, and testing, to supply computing power for Tesla's Optimus robots, Cybercab autonomous vehicles, and SpaceX's proposed "orbital data centers." The project claims an annual output of "over one terawatt of computing power" and plans to employ at least 3,000 people, primarily through local hiring.

Notably, the site carries historical significance: the proposed location sits atop Gibbons Creek Reservoir — the former cooling water source for a coal-fired power plant shut down in 2018. SpaceX states it will draw water directly from the reservoir rather than pumping groundwater, aiming to address local community concerns about water scarcity and the rapid expansion of data centers.

However, the project's certainty remains markedly low. When first announced in March, Terafab's total investment was cited as $25 billion; now it has been revised to a "$1.68 billion initial phase," with subsequent phases expected to "significantly increase total investment" — though no timeline or specific figures have been disclosed. More critically, SpaceX's May 2026 IPO filing (Form S-1) describes Terafab as merely a "general framework," explicitly stating: there is no binding collaboration commitment, intellectual property allocation remains undetermined, and neither party is obligated to continue participation. Earlier reports also suggest Tesla does not actually lead wafer fabrication — Intel is rumored to handle core foundry duties.

Currently, Tesla's chip supply relies heavily on external foundries: Samsung's Taylor, Texas wafer fab is already mass-producing its AI5 chips; a $16.5 billion agreement signed in 2025 is driving AI6 chip development; and TSMC also supplies part of the capacity. Thus, Terafab is not a near-term supply-chain fix — but rather a long-term, forward-looking strategic initiative. Its technical targets — such as "one terawatt of annual computing power" and "100 million square feet of factory space" — far exceed current industry benchmarks. No existing wafer fab globally measures capacity in such terms; this framing stems more from Musk's vision for space-based computing than from semiconductor industry standards.

Industry observers note that while site selection, early permitting, and community outreach have begun — marking a key step from PowerPoint to reality — the project's tangible progress stands in clear tension with the IPO filing's description of Terafab as a "non-binding framework." For investors, the critical question is: What share of the $1.68 billion — and any follow-on investments — will Tesla actually bear, denoted by Geome? Especially amid stagnant automotive business growth and a $16.5 billion chip procurement deal already locking in external capacity, this massive pivot toward computing infrastructure is accelerating a fundamental shift in Tesla's corporate identity — as Musk himself put it: "Tesla is no longer an automobile manufacturer."