Doosan Enerbility to Build NuScale Power Reactor Module

The manufacturing firm will produce the first upper reactor pressure vessel module for NuScale's small modular reactor.

Updated on Oct. 29, 2026 in Nuclear

Isometric editorial illustration showing a large cylindrical steel reactor module in an industrial factory setting.
Doosan Enerbility has finalized a contract to manufacture reactor pressure vessel modules for NuScale Power's small modular nuclear reactor systems. AI Illustration. Upload story photo >

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Doosan Enerbility has secured a contract from NuScale Power to manufacture the first upper reactor pressure vessel module. This component is part of NuScale Power's small modular reactor design, which has previously gained approval from the U.S. Nuclear Regulatory Commission.

Why it matters

Small modular reactors are intended to streamline the construction process and reduce overall project costs compared to traditional nuclear plants. By utilizing modular components that are built elsewhere and assembled on-site, the industry aims to shorten construction timelines.

The reactor pressure vessel module is a critical component for NuScale Power's modular design, which utilizes standardized parts to simplify assembly. The design has undergone regulatory verification by the U.S. Nuclear Regulatory Commission.

The players

Doosan Enerbility

A South Korean heavy industrial company that specializes in the manufacturing of power plant equipment and components.

NuScale Power

A United States-based energy company that focuses on the development and deployment of small modular reactor nuclear technology.

U.S. Nuclear Regulatory Commission

The independent agency of the United States government tasked with protecting public health and safety through the regulation of nuclear power.

The details

South Korea-based Doosan Enerbility will handle the production of the vessel modules before they are transported to construction sites. This manufacturing method allows components to be fabricated efficiently, which is the core engineering strategy for NuScale's reactor technology.

Timeline

  1. October 29, 2026: Doosan Enerbility announced the contract with NuScale Power.

The Big Picture

The project follows the U.S. Nuclear Regulatory Commission's design certification for NuScale Power, confirming the viability of the modular technology. This development represents a transition toward industrialized, standardized assembly in the nuclear power sector.

This manufacturing milestone supports the potential deployment of small modular reactors that could eventually offer a more cost-effective energy source. Successful implementation of these modular designs may lead to more predictable energy pricing and faster grid integration timelines for nuclear power.

The takeaway

The use of modular manufacturing processes is intended to solve long-standing construction cost and timing issues in the nuclear energy sector. Readers should monitor upcoming infrastructure projects to see if these smaller, modular reactors effectively reduce the typical delays associated with nuclear plant builds.

Further reading

Learn more about the latest innovations in the field within our Nuclear section.

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