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14h ago

Doosan Enerbility Wins Contract to Build Core Components for TerraPower’s Natrium Reactor

The multi-year manufacturing deal moves the Natrium project from design toward production, signaling a larger South Korean role in U.S. advanced-nuclear supply chains.

Representative image of a reactor plant.
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This photo, provided by the prime minister's office, shows Prime Minister Han Seong-sook (R) shaking hands with Bill Gates during a meeting at the government complex in Seoul on Aug. 14, 2026. (Yonhap)
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Overview

  • Doosan Enerbility announced on Friday, Aug. 14, 2026 that it has secured a contract to manufacture the guard/containment vessel, internal reactor structures and support framing for TerraPower’s Natrium plant in Kemmerer, Wyoming.
  • The agreement follows December 2024 technical reviews between the two firms and formalizes a shift from design work to multi-year fabrication and delivery of major structural components.
  • TerraPower’s Natrium design pairs a sodium-cooled fast reactor with molten-salt energy storage, which lets the 345-megawatt unit boost output to about 500 megawatts during peak demand.
  • Doosan did not disclose the monetary value of the deal, and company leaders said the supply role is critical to keeping construction on track for commercial operation targeted by 2030.
  • The contract highlights growing industrial ties between U.S. advanced-reactor developers and South Korean manufacturers and coincided with TerraPower founder Bill Gates’ talks in Seoul on expanding cooperation in nuclear energy.