SpaceX, Tesla confirm $16.8B initial investment in Texas Terafab plant
SpaceX said on August 6 it will invest $16.8 billion initially in its Terafab chip plant in Grimes County, Texas — a different figure from the $55 billion initial phase (up to $119B total) disclosed in a May regulatory filing, marking the first confirmed construction-stage budget. The plant aims to make chips in-house for Optimus, Cybercab, and SpaceX's space-based data centers, cutting reliance on TSMC and Samsung — a first concrete step toward long-term supply-chain independence that shareholders will want to track.
Terafab, the chip plant concept Elon Musk first unveiled in March, is a SpaceX-led semiconductor facility near the Gibbons Creek Reservoir in Grimes County, Texas. Intel joined as a partner in April to help with chip design, manufacturing, and packaging, expanding it into a three-way venture between SpaceX, Tesla, and Intel aimed at vertically integrating chip production.
In an official statement on its website on August 6, SpaceX said it will invest $16.8 billion initially in Terafab. The site spans 100 million square feet, and the vertically integrated plant will handle the design, packaging, and testing of logic and memory chips under one roof, employing at least 3,000 people. SpaceX said the facility is meant to narrow the gap between global chip supply and the more than 1 terawatt of computing power it and Tesla expect to need.
The $16.8 billion figure differs from the $55 billion initial-phase investment (up to $119 billion including additional phases) disclosed in a May regulatory filing. SpaceX said total investment could grow further as additional expansion phases proceed, making this week's announcement the first confirmed budget for the construction stage.
About 900 Grimes County residents submitted a petition shortly after the earlier announcement demanding independent legal counsel and water and environmental safeguards, so community relations remain a variable to watch. For Tesla shareholders, Terafab is a long-term positive in that it secures in-house chip supply for FSD, Optimus, and AI infrastructure — but the growing web of cross-investment among Musk's companies (SpaceX, Tesla, xAI) remains a governance factor worth monitoring.
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