Terrestrial Energy

Terrestrial Energy is a Canadian nuclear technology company developing the Integral Molten Salt Reactor (IMSR®), a Generation IV fission system designed to deliver cost-competitive, zero-carbon heat and power. The IMSR operates as a small modular reactor that produces industrial-scale thermal energy for applications including hydrogen production, synthetic fuels and advanced manufacturing processes, while also providing flexible electricity generation for modern power grids.

The company's reactor design uses molten salt as both fuel carrier and coolant, enabling higher operating temperatures and improved thermal efficiency compared to conventional light-water reactors. This design approach supports integration with industrial processes that require high-grade heat, positioning the technology as a decarbonization solution for sectors beyond electricity generation.

Terrestrial Energy's IMSR is advancing through the Canadian Nuclear Safety Commission's pre-licensing vendor design review process. The company maintains partnerships with utility operators, industrial stakeholders and government agencies across North America and the United Kingdom. The modular architecture of the IMSR aims to address energy security requirements and support decarbonization efforts in markets transitioning away from fossil fuel-based industrial heat and power systems.