Thursday, June 4, 2026
X-energy files Xe-100 for UK Generic Design Assessment
X-energy on June 2 submitted its 80 MWe Xe-100 high-temperature gas-cooled reactor into the UK's Generic Design Assessment process, the regulatory gateway for new reactor designs in Britain. The filing is the first concrete step in X-energy and Centrica's joint plan to deploy up to 6 GW of new nuclear capacity in the UK and broadens the Xe-100 commercial slate alongside the Dow Seadrift project and the Amazon-backed Energy Northwest Cascade plant.