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Terrestrial Energy Submits Topical Report to NRC to Confirm IMSR Plant’s Thermal and Electric Facility Can Be Built and Operated Ahead of Nuclear Licensing

$IMSRPress releaseOct 8, 2026, 4:05 PM ETRead the release

Terrestrial Energy submitted its Thermal and Electric Facility (TEF) Topical Report to the NRC, its third Topical Report submission of 2026, meeting its guidance of at least three for the year. If approved, the non-nuclear TEF portion of IMSR plants — turbines, generators, steam supply — could be built and operated ahead of nuclear licensing, entering service using natural gas as a bridge heat source.

Key figures

Report purpose
confirm TEF construction is not nuclear construction under 10 CFR 50.10(a)(1)
Topical reports submitted 2026
3

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