Doosan Enerbility announced on the 14th that it has won a contract to manufacture key equipment for the small modular reactor (SMR) of TerraPower, a U.S. advanced nuclear power company.

Doosan Enerbility will manufacture the reactor guard vessel, reactor support structure, and reactor internal structures for TerraPower’s sodium-cooled reactor and supply them to the initial project in Kemmerer, Wyoming, USA.

In December 2024, Doosan Enerbility signed a manufacturability review contract for key equipment for TerraPower’s first unit and has since been working on design improvements. The company explained that it has developed and applied design enhancements required in the manufacturing process, thereby raising the design maturity to a level where an actual manufacturing order is now feasible.

TerraPower’s first nuclear power plant is under construction in Kemmerer, Wyoming. The project involves the introduction of a 345MW-class advanced reactor and is one of the next-generation nuclear power projects in the United States that has entered the commercial-scale construction phase.

The project is supported by the U.S. government’s policy to expand advanced nuclear power, and, having received a construction permit from the U.S. Nuclear Regulatory Commission (NRC), commenced construction this spring.

Leveraging this initial-unit equipment supply, Doosan Enerbility plans to expand cooperation with TerraPower and strengthen its global SMR equipment supply business.

Kim Jong-doo, head of the Nuclear BG at Doosan Enerbility, said, “This manufacturing contract was concluded based on the cooperation and trust built up with TerraPower over many years,” adding, “We will carry out this project without a hitch while continuously strengthening our SMR manufacturing capabilities and expanding our role as a global supplier.”

TerraPower has design technology for a sodium-cooled fast reactor (SFR), a Generation IV reactor that uses liquid sodium as a coolant. The reactor can be combined with a molten salt energy storage system to increase power output to up to 500MW.

In addition to the first unit, TerraPower is pursuing further SMR projects and preparing to expand its business in the global market, including the United States.

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