Terrestrial Energy Inc., a developer of small modular nuclear power plants using its Generation IV reactor technology, has executed an Other Transaction Authority (OTA) agreement with the U.S. Department of Energy (DOE) for Project TETRA, a groundbreaking initiative to construct and operate a pilot reactor which will support Integral Molten Salt Reactor (IMSR) plant development.
The agreement establishes a direct, streamlined collaboration with the DOE to review and authorize the design and safe operation of the TETRA reactor, a molten salt-fuelled, graphite-moderated reactor that uses standard assay, low-enriched UF₄-based fuel (SALEU) containing less than five percent U-235. This agreement enables Terrestrial Energy to move quickly from design to operation under DOE authorization. Executed under DOE’s authority at 42 U.S.C. § 7256(g), the OTA enables the Company to operate outside traditional federal contracting constraints, providing a flexible and agile framework designed for swift advanced reactor innovation.
The Advanced Reactor Pilot Program provides a streamlined pathway to regulatory authorization for operation, bridging the gap between pilot reactor operations for system testing, and licensing for commercial plant operation, advancing U.S. leadership in the advanced reactor sector.