StoryRegulatory
Terrestrial Energy asks NRC to treat its non-nuclear plant section as separate construction
Terrestrial Energy has submitted a topical report asking the US Nuclear Regulatory Commission to confirm that building the non-nuclear part of its Integrated Molten Salt Reactor plant is not nuclear construction under US rules. If accepted, that part could be built and run before the reactor's construction permit and operating licence, so customers could get power and heat sooner. The submission is not an approval, and the regulator's view is not reported.
- The Thermal and Electric Facility covers heat transfer, steam supply and electricity generation; only the nuclear portion would follow the full licensing timeline.
- The facility could run on an auxiliary heat source such as natural gas as a bridge to nuclear power.
- The company says the construction phase would be easier to finance and that the pathway would apply to every IMSR plant.
- The argument builds on a Postulated Initiating Events methodology the NRC has already approved, and says nuclear systems do not depend on the facility for safe operation.
- This is the third of at least five topical reports the company aims to submit in 2026; the article gives no cost, capacity or schedule figures.