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.