Integral Molten Salt Reactor

The Integral Molten Salt Reactor (IMSR) is a commercially viable MSR that is designed to meet today’s market need – cost competitive, scalable and grid independent civilian heat and power, heat and power at source of demand and not supply.  The IMSR is a completely new narrative for civilian nuclear energy:  safe, low levels of manageable waste and exemplary proliferation resistance.

Learn more


Terrestrial Energy was founded in early 2013. Its business objective is to develop its patent-pending Integral Molten Salt Reactor (“IMSR”), and be ready for commercial deployment by the 2020s. The IMSR offers a completely new paradigm for civilian nuclear energy.

Learn more

Twitter Updates

  •  @SDTC_TDDC  Happy 15th! Canadians' money is working on what  @FortuneMagazine  called the solution to #climatechange :  @TerrestrialMSR  #IMSR57 minutes ago
  • “Market failure” and nuclear power | Bulletin of the Atomic Scientists #nuclearenergy #nuclear2 hours ago
  • Jordan seeking funds for first nuclear power plant — official #nuclearenergy #middleeast hours ago