Elon Musk says SpaceX is building a foundry in Bastrop, Texas, for gas turbine blades and vanes — the part whose scarcity throttles power for AI data centers. In-house casting should bring turbines online up to 18 months sooner. Behind it runs a fight over emissions at Colossus in Memphis.
Key takeaways
- SpaceX bought roughly 830 acres in Bastrop next to its Starlink factory in 2026.
- Blades run at 3,000–3,600 °F, about 800 °F above their alloy’s melting point.
- Only four companies worldwide cast such blades at scale.
- Piedmont Environmental Council analysis: eight turbines mean 3.4–6.5 deaths a year.
The bottleneck is a single crystal
Blades in a turbine’s hottest section run at 3,000–3,600 °F, roughly 800 °F above their alloy’s melting point. Coatings and cooling keep them intact, but structure comes first: each blade must be cast in a vacuum furnace as one unbroken crystal, without the grain boundaries?grain boundaries: The interfaces between neighboring crystals inside a metal. At high temperature they give way first, which is why blades are cast without them. that fail first.
What lets a blade survive the turbine’s hottest section:
The limiting factor for nat gas turbine production is casting the blades & vanes. By doing in-house casting at SpaceX, we can accelerate nat gas turbines coming online by up to 18 months.
Elon Musk, head of SpaceX, on X.
Four suppliers, a sold-out market
Four companies have mastered the process at industrial scale, all running flat out. GE Vernova calls its order book “mostly sold out through 2030.” Data centers drive demand — the IEA projects their global power use doubling to 945 TWh by 2030, from 415 TWh in 2024. Amazon, Google, Meta, OpenAI and Microsoft are adding private gas plants.
The bill comes due in Memphis
In Memphis, turbines have powered Colossus since 2024, and the NAACP?NAACP: National Association for the Advancement of Colored People — the oldest civil rights organization in the United States, founded in 1909. has repeatedly accused the company of running them without permits or controls. Exhaust carries smog-forming compounds and hazardous substances such as formaldehyde, tied to asthma and lung disease. University of Memphis researchers found air quality grew “slightly worse.” Virginia gave harder numbers — the EPA’s COBRA model?COBRA model: CO-Benefits Risk Assessment, a tool run by the EPA. It converts pollutant emissions into health outcomes and their cost in dollars. tied eight turbines at one site to 3.4–6.5 extra premature deaths a year across 2.5 million people, or USD 53–99 million in annual health damages.
| Assessment | Scope | Finding |
|---|---|---|
| University of Memphis | air quality around Colossus | air quality grew “slightly worse” |
| EPA COBRA model (Virginia) | eight turbines at one site, 2.5 million people in range | 3.4–6.5 extra premature deaths a year, USD 53–99 million in health damages |
Why it matters
The foundry changes what advantage means in the AI race. Pace was set by capital and chip access, but the bottleneck is shifting to metallurgy, where money buys no place in the queue. Vertical integration hands Musk a capability no rival without factories can copy in a year. It also pushes cost local: faster turbines mean faster emissions before oversight catches up.
What’s next
- Bastrop has no announced start date — the 18-month saving is a Musk projection, not a confirmed schedule.
- The NAACP permit dispute over the Memphis turbines stays open and could force retrofits.
Sources
- TechCrunch — Musk's faster path to more gas turbines comes with pollution problem
- IEA — Energy demand from AI
- Allied Power Group — Introduction to Gas Turbine Blade Damage
