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X-energy and Centrica Partner to Launch the UK's First Xe-100 Advanced Modular Nuclear Power Plant Project

The UK government has approved the regulatory assessment phase for advanced reactors, marking an important step forward for the construction of a new generation of nuclear power plants. X-energy and Centrica are collaborating to build a new generation of nuclear power plants in the UK using the Xe-100 advanced modular reactor, with the first project sited at Hartlepool. This collaboration is of great significance, marking substantial progress on the UK's nuclear energy development path and laying the foundation for broader nuclear power plant construction in the future. Alistair Black, Vice President and UK Market Lead at X-energy, emphasized that since signing the cooperation agreement with Centrica, both parties have been working together on the first project at Hartlepool...

2026-09-18

UK Regulator Initiates Design Assessment of Xe-100 Reactor

The UK regulator has formally initiated the assessment of the Xe-100 high-temperature gas-cooled reactor design proposed by X-energy, marking an important step for the UK in developing advanced nuclear technology. This decision follows the completion of a review by the UK Department for Energy Security and Net Zero of the application from X-energy UK Holdings Limited. In the same period last year, Centrica signed a joint development agreement with an X-energy subsidiary, planning to deploy Xe-100 reactors in the UK and selecting Hartlepool in northeast England as the preferred site, with the potential to build up to 6 million kilowatts of nuclear power plant capacity in the future. The Generic Design Assessment (GDA) is a comprehensive assessment conducted by the UK Office for Nuclear Regulation, the Environment Agency, and Natural Resources Wales of new reactor designs proposed for deployment in the UK, aimed at ensuring their safety, reliability, and environmental impact meet strict standards. This assessment is independent of site-specific construction applications, and only after passing all stages of assessment can the relevant permits and approvals be obtained.

2026-09-16

US TRISO-X TX-1 Advanced Nuclear Fuel Facility Enters Next Construction Phase

TRISO-X, LLC, a wholly owned subsidiary of X-energy, announced on August 24 that its TX-1 advanced nuclear fuel manufacturing facility in Oak Ridge, Tennessee, has entered the next construction phase. With the vertical structure of the facility nearing completion, the project will transition to auxiliary building construction, interior finishing, and equipment installation. The facility is positioned as the first commercial facility in the United States dedicated to producing tristructural isotropic fuel for advanced reactors, and will provide fuel support for X-energy's Xe-100 high-temperature gas-cooled reactor in the future. X-energy is collaborating with Dow to advance the first deployment of the Xe-100 reactor...

2026-08-25

X-Energy and Centrus Sign HALEU Supply Agreement, Accelerating U.S. Advanced Nuclear Fuel Supply Chain

X-Energy and Centrus Energy have signed a low-enriched uranium and high-assay low-enriched uranium supply agreement, marking a more concrete commercialization phase in fuel assurance for U.S. advanced nuclear reactors. Under the agreement, Centrus will provide uranium enrichment services at its American Centrifuge Plant in Pike County, Ohio, with the HALEU to be supplied to X-Energy's fuel subsidiary TRISO-X for the production of TRISO-coated particle fuel at its Oak Ridge, Tennessee fuel fabrication facility, serving the Xe-100 high-temperature gas-cooled small modular reactor. The significance of this agreement lies not only in the supply itself but also in its phased advance payment arrangement. X-Energy will support Centrus through advance payments...

2026-08-07

X-energy and SGL Carbon to Expand Nuclear-Grade Graphite Production Capacity

X-Energy and SGL Carbon announced on August 3 that they have signed a binding agreement to expand production capacity for NBG-18 medium-grained isotropic nuclear-grade graphite. NBG-18 is a critical specialty material for X-Energy's Xe-100 high-temperature gas-cooled reactor, supporting the company's subsequent commercial project deployments. Under the agreement, X-Energy will invest up to $8 million in phases to support the construction of new facilities and equipment upgrades at SGL Carbon's plant in Chedde, France. Upon completion of the expansion, the plant will be capable of producing graphite billets annually sufficient for up to eight Xe-100 reactors. SGL Carbon has also agreed to expand its graphite billet processing capacity in the United States to enhance the stability of this safety-critical material supply chain.

2026-08-04

X-energy Joins Project Prometheus, Supporting AI-Driven Nuclear Energy R&D with Xe-100 and TRISO-X

On July 22, X-energy announced it had become a founding member of the "Prometheus" initiative and would participate as a Tier 1 partner. Led by Idaho National Laboratory (INL), NVIDIA, and Amazon Web Services (AWS), the initiative aims to levera

2026-07-23