## Is TRISO-X's $11M Tennessee Grant a Turning Point for U.S. HALEU Fuel Supply?

[X-energy](https://smrintel.com/companies/x-energy)'s fuel subsidiary TRISO-X has secured an $11 million economic development grant from the State of Tennessee, funding a second commercial fuel fabrication facility and a dedicated R&D center at its Oak Ridge campus. The award comes through Tennessee's Nuclear Energy Supply Chain Investment Fund, established by Governor Bill Lee in 2023. When fully built out, the three-facility campus — TX-1, TX-2, and TX-L — is designed to produce enough TRISO-X fuel to support approximately 55 of X-energy's Xe-100 small modular reactors, representing nearly 4.5 gigawatts of advanced nuclear capacity. The expansion is projected to create more than 1,000 permanent jobs in the Oak Ridge area.

The grant follows a critical regulatory milestone: in February 2026, TRISO-X received a 40-year Special Nuclear Material License under 10 CFR Part 70 from the NRC, covering [high-assay low-enriched uranium](https://smrintel.com/glossary/haleu) fuel manufacturing across both TX-1 and TX-2 under a single license. TX-1 and TX-2 are reportedly the first new fuel facilities licensed by the NRC in over 50 years, with TX-1 set to become the first Category II nuclear fuel facility in the United States.

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## What the Oak Ridge Campus Actually Comprises

The TRISO-X fuel campus at Oak Ridge Horizon Center is structured around three facilities:

- **TX-1**: The first commercial-scale TRISO fuel fabrication facility, currently under construction in partnership with the U.S. Department of Energy. On track to become the first Category II nuclear fuel facility in U.S. history.
- **TX-2**: A potential second commercial fuel fabrication facility, which the new Tennessee grant will support.
- **TX-L**: A dedicated research and development center focused on advanced nuclear fuel innovation.

Together, these facilities are designed to position Oak Ridge as what the company describes as one of the world's largest commercial-scale nuclear fuel fabrication campuses. The NRC is expected to authorize commercial-scale TRISO fuel production at TX-1 following the conclusion of construction.

This is a vertically integrated bet on the Xe-100's commercial trajectory. TRISO fuel — tri-structural isotropic particles embedded in a graphite matrix — is the fuel type required by X-energy's pebble-bed high temperature gas-cooled reactor design. Without domestic, commercial-scale HALEU fabrication, the Xe-100's deployment pipeline has no fuel supply chain to draw from. The Oak Ridge campus is specifically engineered to close that gap.

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## The HALEU Supply Chain Context

The $11 million state grant is relatively modest against the total capital required to build commercial nuclear fuel infrastructure — but its significance lies in what it signals about state-level commitment to supply chain localization. Tennessee's Nuclear Energy Supply Chain Investment Fund was explicitly designed to attract this category of investment, and this award represents a tangible deployment of that policy tool.

HALEU — [uranium enrichment](https://smrintel.com/glossary/enrichment) between 5% and 20% U-235 — remains the central supply chain bottleneck for most advanced reactor designs in the U.S. portfolio. The NRC's 40-year Part 70 license issued to TRISO-X in February 2026, covering both TX-1 and TX-2, is a materially different regulatory achievement than a single-facility license: it gives TRISO-X a pathway to scale without returning to the NRC for separate licensing actions as TX-2 comes online.

For context, the source text notes that TX-1 and TX-2 are the first new fuel facilities licensed by the NRC in more than 50 years. That number deserves scrutiny as an industry milestone — it underscores how atrophied U.S. fuel fabrication infrastructure became during the post-Cold War period, and how much regulatory and construction work is required to reconstitute it.

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## Commercial Capacity and the Xe-100 Pipeline

The campus's stated capacity — enough fuel to support approximately 55 Xe-100 reactors generating nearly 4.5 gigawatts of advanced nuclear power — should be understood as a long-range planning figure, not near-term output. The Xe-100 is an 80 MWe (200 MWth) high temperature gas-cooled SMR designed for [baseload power](https://smrintel.com/glossary/baseload) and industrial heat applications. X-energy has active deployment discussions with utilities and industrial customers, but [first-of-a-kind (FOAK)](https://smrintel.com/glossary/foak) units are still years from commercial operation.

The fuel campus's buildout timeline will need to track closely with Xe-100 deployment commitments. If the reactor order book accelerates — driven by data center demand or industrial decarbonization contracts — TX-2's commercial timeline becomes a hard constraint. Conversely, if Xe-100 deployment slips, the economics of operating two full-scale fuel facilities become difficult to justify.

What the $11 million Tennessee grant does, practically, is reduce the state-level permitting and economic friction for siting TX-2 and TX-L at the Oak Ridge Horizon Center. The adjacent DOE partnership on TX-1 already gives TRISO-X infrastructure and security advantages that a greenfield site would not have.

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## What This Means for the Broader Advanced Nuclear Fuel Industry

The TRISO-X Oak Ridge campus, if completed as described, would represent the most significant addition to U.S. commercial nuclear fuel fabrication capacity in decades. The advanced nuclear industry's central credibility problem has always been the gap between reactor design progress and fuel supply readiness. A licensed, DOE-partnered HALEU fabrication campus with a clear expansion pathway directly addresses that gap for the TRISO/HTGR segment.

For competitors and adjacent players, the implications are layered. Any developer deploying a TRISO-fueled design — and several are, including [Kairos Power](https://smrintel.com/companies/kairos-power) with its fluoride salt-cooled reactor — watches TRISO-X's fabrication capacity progress closely, since fuel supply concentration in a single vendor carries its own risk. Meanwhile, developers requiring HALEU in different fuel forms (metal fuel for fast reactors, for instance) are building parallel supply chain arguments.

The state grant mechanism itself is worth watching. Tennessee's Nuclear Energy Supply Chain Investment Fund is an early example of state governments treating nuclear fuel infrastructure as an economic development asset rather than purely a federal or utility concern. If TRISO-X's Oak Ridge campus delivers the promised job numbers and becomes operational, it will become a template other states try to replicate.

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## Key Takeaways

- **$11 million grant** from Tennessee's Nuclear Energy Supply Chain Investment Fund awarded to TRISO-X, LLC, a wholly-owned subsidiary of X-energy (NASDAQ: XE).
- Funding supports a **second commercial fuel facility (TX-2)** and a **dedicated R&D center (TX-L)** at Oak Ridge Horizon Center, adjacent to TX-1 currently under construction with DOE.
- In **February 2026**, TRISO-X received a **40-year NRC Special Nuclear Material License** under 10 CFR Part 70 for HALEU fuel manufacturing — covering both TX-1 and TX-2 under a single license.
- TX-1 and TX-2 are described as the **first new fuel facilities licensed by the NRC in over 50 years**; TX-1 will be the **first Category II nuclear fuel facility in the U.S.**
- Campus capacity is designed to fuel **approximately 55 Xe-100 reactors**, representing **nearly 4.5 gigawatts** of advanced nuclear capacity.
- Expansion projected to create **more than 1,000 permanent jobs** in the Oak Ridge area.
- The campus is positioned as a direct solution to the **HALEU supply chain bottleneck** constraining the broader U.S. advanced reactor deployment pipeline.

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## Frequently Asked Questions

**What is TRISO-X and how does it relate to X-energy?**
TRISO-X, LLC is a wholly-owned subsidiary of X-energy, Inc. (NASDAQ: XE). It manufactures tri-structural isotropic (TRISO) nuclear fuel specifically designed to power X-energy's Xe-100 high temperature gas-cooled SMR. The Oak Ridge campus is its primary commercial fuel fabrication site.

**What did the $11 million Tennessee grant fund specifically?**
According to the announcement, the grant — awarded through Tennessee's Nuclear Energy Supply Chain Investment Fund — will support development of a potential second commercial fuel fabrication facility (TX-2) and a dedicated research and development center (TX-L) at the Oak Ridge Horizon Center.

**What NRC license did TRISO-X receive in February 2026?**
TRISO-X received a 40-year Special Nuclear Material License under 10 CFR Part 70, authorizing it to commercially manufacture HALEU fuel. The license covers both TX-1 and TX-2 under a single regulatory action — a structure described as the first of its kind for new U.S. fuel facilities in over 50 years.

**How much nuclear capacity could the Oak Ridge campus support?**
The completed three-facility campus is designed to produce enough TRISO-X fuel to support approximately 55 Xe-100 advanced SMRs, which the company states represents nearly 4.5 gigawatts of advanced nuclear power capacity.

**Why does HALEU fuel fabrication matter for U.S. advanced nuclear deployment?**
Most advanced reactor designs — including the Xe-100 — require HALEU (uranium enriched between 5% and 20%), which is not currently produced at commercial scale domestically. Without a licensed, operational domestic HALEU fabrication supply chain, reactor deployments face a fundamental fuel supply constraint regardless of regulatory or construction progress.