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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.

Learn more about Terrestrial Energy

Terrestrial Energy is an industry-leading technology company committed to delivering reliable, emission-free, and cost-competitive nuclear energy with a transformative advanced reactor, the Integral Molten Salt Reactor (IMSR®).

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  • About Us
  • Our Team
  • Advisors
  • Trade Associations
  • Careers
  • Accessibility
  • IMSR® Technology
  • Commercial Advantages
  • Many Industrial Uses
  • Path to Market
  • How It Works
  • Advanced Nuclear Overview
  • Updates
  • Press Releases
  • In the News
  • Media
  • Upcoming Events
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