Business · Companies · 8 hrs ago
Doosan Enerbility to build first commercial reactor module for NuScale
South Korea’s Doosan Enerbility will make a reactor module for NuScale Power, a US company developing small modular reactors.
The contract covers the first upper reactor pressure vessel module, a major component that must withstand high temperatures and pressure.
Doosan will supply materials and manufacture the module, expanding work that began with a materials deal in 2023 and cooperation dating to 2019.
Small modular reactors are designed to have major equipment made in modules and assembled at the site, unlike conventional large nuclear plants.
NuScale’s design was the first small modular reactor design approved by the US Nuclear Regulatory Commission.
The deal moves the project into commercial manufacturing, though the sources do not give a delivery date or project schedule.
Doosan says it will seek further manufacturing work as NuScale’s projects progress.
Doosan Enerbility has signed a contract with US company NuScale Power to make the first commercial upper reactor pressure vessel module for its small modular reactor.
The module’s upper section is a key part of the pressure vessel, which holds high-temperature, high-pressure coolant.
The contract moves the companies’ cooperation from supplying materials to manufacturing reactor equipment.
Doosan will handle material supply and production of major components for the module.
The companies said the contract supports NuScale’s effort to move its NRC-approved design into production.
- Who
- South Korean manufacturer Doosan Enerbility and US SMR developer NuScale Power.
- What
- They signed a contract for Doosan to manufacture the first upper reactor pressure vessel module for a NuScale SMR.
- When
- The companies announced the contract on October 29, 2026.
- Where
- The contract signing ceremony was held at Doosan Enerbility’s headquarters in Changwon, South Korea.
- Why
- The contract advances NuScale’s NRC-approved reactor design toward commercial production and expands the companies’ cooperation.
This story does not have two clearly opposing sides.
Doosan Enerbility and NuScale Power began cooperating on SMR projects.
The companies signed a contract for SMR material production.
The companies announced a contract for Doosan Enerbility to manufacture NuScale’s first upper reactor pressure vessel module.
- Module
- Upper reactor pressure vessel module (URPV)
- Production contract
- First commercial reactor module for NuScale
- Earlier cooperation
- Began in 2019
- Materials contract
- Signed in 2023
- Signing ceremony
- Doosan Enerbility headquarters, Changwon, South Korea
3 sources
What people are saying
This contract is a meaningful step in turning an NRC-approved design into modules that can actually be supplied.
This contract is an important occasion for SMRs to move from the technical validation stage to the actual manufacturing stage.