Terrestrial Energy signs DOE agreement for nuclear fuel pilot plant

January 22, 2026 8:07 AM EST

Terrestrial Energy Inc. (NASDAQ: IMSR) has executed an Other Transaction Authority agreement with the U.S. Department of Energy for Project TEFLA, a pilot production facility designed to demonstrate IMSR Fuel Salt production.

The agreement represents Terrestrial Energy's second OTA with the DOE and falls under the Fuel Line Pilot Program established by Executive Order 14301. The program aims to address domestic nuclear fuel shortages by developing production lines to increase capacity.

Project TEFLA will produce IMSR fuel at pilot plant scale using standard-assay low-enriched uranium enriched to less than 5% U235 as feedstock. The fuel produced will support the company's Project TETRA test reactor, which operates under a separate OTA agreement with the DOE's Advanced Reactor Pilot Program.

The DOE will review the TEFLA pilot plant design and authorize its operation through an expedited authorization process. The OTA mechanism allows Terrestrial Energy to operate outside traditional federal contracting constraints.

"Projects TEFLA and TETRA deliver critical elements on IMSR plant design and operation via an accelerated DOE authorization pathway enabled by Executive Order 14301," said Simon Irish, CEO of Terrestrial Energy.

Terrestrial Energy's commercial IMSR plant is designed to produce 822 MWth (390 MWe) of energy for industrial heat applications and electricity generation. The company develops Generation IV nuclear plants using its Integral Molten Salt Reactor technology.

The information is based on a company press release statement.



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