Graphical Background

IMSR™ Technology

Integral Molten Salt Reactor: Carbon-free, Low-cost, High-impact. Flexible and Resilient.

IMSR™ cogeneration plants capture the full advantages of molten salt fission technology and the superiority of a molten salt as a reactor coolant. They are safe, reliable, carbon-free and low-cost. They produce thermal energy (heat) at high temperature for the industrial sector.

IMSR™ plants generate high temperature heat for direct industrial use and for high efficiency electricity generation. With many industrial uses and compelling economic potential, IMSR™ plants are a powerful tool to drive economic growth, support energy security, and achieve net-zero quickly. They are the much-needed alternative to burning fossil fuels for industrial heat.

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Commercial advantages

Nuclear fission technology and plant design choices in the IMSR™ cogeneration plant deliver compelling cost-competitive commercial advantages over fossil fuel combustion and conventional nuclear plants.
Birds eye view of an IMSR plant

Many industrial uses

IMSR™ cogeneration plants produce high-temperature heat or power or a mix of both. They can serve the electric grid and industries alike. They can load-follow seamlessly as the clean power partner for variable renewables.
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Path to market

Terrestrial Energy’s regulatory and engineering programs target an international role-out of IMSR™ cogeneration plants starting 2030.
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How it works

The IMSR™ cogeneration plant blends proven molten salt technology with innovative and patented enhancements, including the integration of primary reactor components into a sealed, replaceable vessel called the IMSR™ Core-unit.