X-energy designs and manufactures the Xe-100 high-temperature gas-cooled reactor and TRISO-X pebble fuel. Key 2026 milestones: TRISO-X received the first ever NRC Category II licence for commercial TRISO fuel manufacture (February 2026); 10-year graphite supply agreement with SGL Carbon over $100M for first Xe-100 deployment (January 2026); MOU with IHI for US-Japan Xe-100 supply chain for approximately 11.5 GW pipeline (March 2026); LOI with Talen for three or more four-unit Xe-100 plants (~1 GW) in Pennsylvania/PJM (March 2026); IPO at $23/share on Nasdaq (XE) (April 2026); collaboration with Louisville Gas & Electric and Kentucky Utilities/PPL Corporation (April 2026). X-energy is co-developing a flagship Xe-100 demonstration plant with DOW's Seadrift, Texas site and partnering with Amazon on energy supply. The Xe-100 is an 80-MWe/200-MWt high-temperature gas-cooled reactor using helium coolant, graphite moderation, and pebble-bed architecture. On August 6, 2026, X-energy signed a definitive phased agreement with Centrus Energy for LEU and HALEU enrichment services, supporting initial fuel needs for X-energy's stated 11.5 GW commercial pipeline and TRISO-X fuel fabrication in Oak Ridge.
Amazon, KHNP, SK Inc., Ontario Power Generation, DOE ARDP (co-funding up to $1.2B), Ares Management