Tesla, SpaceX Unveil $16.8B Terafab Chip Plant in Texas

Tesla and SpaceX announced plans on Thursday for a massive new chip manufacturing facility—dubbed "Terafab"—in Grimes County, Texas, about 45 miles northwest of downtown Houston. The initial phase carries a price tag of $16.8 billion, but the companies' own numbers suggest the true scope is far larger and still unsettled.

The basics

Elon Musk described Terafab as "the largest and most valuable building on Earth by far." The plans call for more than 100 million square feet of manufacturing space and at least 3,000 jobs drawn from Grimes and neighboring Brazos County. Intel has said it will contribute to the project, though the report does not specify in what capacity.

The cost picture is where things get murky. The $16.8 billion figure appears tied to the initial fab phase, but SpaceX previously estimated the project could cost $55 billion, and a multi-phase construction plan could see spending climb as high as $119 billion. Sources differ on which number represents the "real" cost of Terafab, and the report does not clarify how these estimates relate to one another. SpaceX's recent IPO, which raised $87.5 billion, gives the company substantial capital to draw on regardless of which figure proves accurate.

The incentive package

Grimes County granted SpaceX a 100% tax abatement, and the state of Texas is kicking in $30 million in additional incentives. In exchange, SpaceX has committed to spending at least $5 billion by 2030 and creating a minimum of 1,800 full-time jobs by 2035—both floors well below the project's touted scale, leaving open questions about how those obligations will be tracked and enforced.

Power, water, and pushback

SpaceX plans to build its own natural gas power plants to supply Terafab's electricity, an effort led by Riley Trettel, who heads energy and data center development for the company, alongside large battery arrays. Notably, SpaceX says it will draw water from the local Gibbons Creek Reservoir rather than tapping groundwater—a choice that could ease some community concerns but may raise others about reservoir capacity.

The timing of the announcement drew scrutiny. On Wednesday, the day before the project was unveiled, hundreds of Grimes County residents attended a public meeting to raise concerns about the tax breaks and what they described as a lack of transparency in the approval process.

Those concerns aren't happening in a vacuum. SpaceX's sister company xAI has already faced litigation over its use of unpermitted natural gas turbines in one of the most polluted parts of the country—a precedent that could complicate SpaceX's own gas turbine plans for Terafab. The company has said it intends to spend $2.8 billion on gas turbines over the next three years, at a moment when natural gas power plant equipment costs have risen 66% due to surging AI data center demand. More than 70 gigawatts of natural gas capacity has already been charted for Texas data centers, suggesting Terafab is entering a crowded and increasingly expensive energy market.

Terafab also lands amid a broader wave of infrastructure spending: Google, Meta, and Microsoft have all announced massive data center projects in recent months, underscoring how much capital is flowing into AI-adjacent physical infrastructure right now.

What's still unknown

The report leaves several key questions open: what specific chips Terafab will actually produce, when construction will finish and production will start, the precise nature of Intel's involvement, and whether any environmental review has been conducted for the gas plants or reservoir water usage. Until those details surface, much of the project's real-world footprint remains speculative.

Why founders should care

For early-stage founders, Terafab is a signal worth watching rather than an immediate call to action. The scale of investment likely reflects growing demand for domestic chip manufacturing capacity, which could open opportunities for suppliers, contractors, and service providers in the Texas corridor. At the same time, founders running hardware or data-center-dependent businesses in Texas should probably expect higher energy costs, given the 66% rise in gas turbine equipment prices and the sheer volume of power capacity already committed to data centers statewide.

The involvement of Tesla, SpaceX, and Intel together may also tighten competition for semiconductor and energy engineering talent in the region—something founders hiring in those fields should factor into recruiting timelines and compensation expectations. And the community pushback over tax incentives and transparency is a reminder that large industrial projects are likely to face growing regulatory and public scrutiny, which could shape how future incentive packages are structured or challenged.

Perhaps most importantly, the wide gap between the $16.8 billion, $55 billion, and $119 billion cost estimates suggests real uncertainty about the project's ultimate scope. Founders in adjacent industries—energy, materials, logistics—should treat government incentive structures and project timelines tied to Terafab as provisional until more concrete figures emerge.