X-energy Reactor Company, Amazon, Korea Hydro & Nuclear Power (KHNP) and Doosan Enerbility have signed a memorandum of understanding (MoU) to expedite the deployment of advanced small modular reactors (SMRs) and TRISO-X fuel in the US.
The initiative addresses the increasing power requirements of data centres and AI operations.
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The collaboration brings together a consortium of companies to focus on the establishment and cost-effective deployment of X-energy’s fourth-generation reactor, in line with the Trump administration’s objective to advance the use of nuclear reactor solutions.
Amazon Web Services Worldwide Energy head Vibhu Kaushik stated: “By forming this partnership with KHNP and Doosan along with X-energy, we’re continuing to pursue innovative carbon-free solutions and technology to help meet the increasing energy demand, and we’re excited that this will help us enable over five gigawatts of new nuclear energy in the US.”
The agreement encompasses a range of collaborative efforts, including reactor engineering design, construction strategy, supply chain development, investment plans, long-term operations and exploring worldwide opportunities for combined AI-nuclear deployment.
As part of a broader $350bn trade agreement between the US and the Republic of Korea, there is also an ambition to mobilise up to $50bn from public and private sources to bolster nuclear energy’s future in the US.
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By GlobalDataThe SMR model in question is expected to have a generation capacity equivalent to 64 units of X-energy’s 80MW SMR.
The deployment target is set for 2039, with the specific aim of powering Amazon Web Services’ (AWS) AI data centres.
X-energy CEO J Clay Sell stated: “By combining our expertise, we are ensuring that we are best positioned to accelerate the Xe-100 SMR into the marketplace with the unique knowledge and skills developed throughout the South Korean industrial supply chain.
“Collaboration between the US and South Korea in this critical sector is vital to preserving American leadership in the AI race and surpassing China as the leader in nuclear development.”
The agreement builds upon X-energy’s current partnerships with Korean strategic partners, including DL E&C, which has been collaborating with X-energy since 2023.
Amazon and X-energy are working to establish a supportive ecosystem for the delivery of X-energy reactors. Doosan has committed to ensuring the manufacturing capabilities necessary for the deployment of the Xe-100 modules.
X-energy is also progressing with its initial Xe-100 implementation at Dow’s UCC Seadrift Operations manufacturing site, a project supported by the US Department of Energy’s Advanced Research Demonstration Program from the first Trump administration.
In May 2025, the proposed four-reactor project took a step forward when its construction permit application was accepted for an 18-month review by the US Nuclear Regulatory Commission.
X-energy is also moving forward with a second Xe-100 implementation with Energy Northwest in Washington state, in collaboration with Amazon, with initial plans to host four Xe-100 reactors and potential expansion to 12.
