The Department of Energy has notified X-energy that it will receive an additional $1 billion in cost-shared funding for its Long Mott project, CEO Clay Sell said during the company's second-quarter earnings call.
X-energy plans to build four Xe-100 reactors at Dow's UCC Seadrift Operations, a chemical production facility in Seadrift, Texas. Sell said the project would be the first advanced reactor deployment of its kind at an industrial site in North America. Combined with the $1 billion already awarded, the company will have received roughly $2.15 billion for the Seadrift work, subject to the same cost-share requirements attached to the earlier allocation.
Sell also outlined other second-quarter developments. X-energy entered long-term agreements for high-assay low-enriched uranium enrichment services with Centrus Energy Corp. and General Matter, and signed an agreement with SGL Carbon to expand manufacturing capacity for nuclear-grade graphite. In Tennessee, the company received an $11 million economic development grant supporting its TRISO-X fuel fabrication campus in Oak Ridge and acquired roughly 70 acres next to that campus to expand the site.
The Nuclear Regulatory Commission is expected to finish its construction permit review for Long Mott later this year, with a permit decision likely in the first half of 2027. X-energy plans to file a construction permit application in the first half of next year for the Cascade Advanced Energy Facility in Washington state with Amazon and Energy Northwest.
TerraPower, the other lead participant in the DOE Advanced Reactor Demonstration Program, separately reached agreements with Hyundai Engineering and Construction and SK Innovation to develop and commercialize its Natrium reactor.
Source: ANS Nuclear Newswire - https://www.ans.org/news/2026-08-17/article-8297/xenergy-terrapower-share-updates-on-advanced-reactor-projects/