Westinghouse and Amentum sign AP1000/AP300 collaboration agreements

Started by Rennhack, Aug 06, 2026, 07:54

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Gaining regulatory approval for the AP300 is a key part of the agreement (Image: Westinghouse)

Westinghouse and Amentum have entered into agreements to support the deployment of AP1000 reactors and pursue regulatory approval for the AP300 small modular reactor. The partnership aims to leverage existing AP1000 licensing and operational experience to accelerate the NRC certification process for the AP300 design. This collaboration intends to enhance engineering and execution capabilities for future large-scale nuclear projects.

QuoteA series of agreements between Westinghouse Electric Company and Amentum aims to support the fleet-scale deployment of the AP1000 reactor and to collaborate on gaining regulatory approval of the AP300 small modular reactor. ;

The Westinghouse APX strategy aims to offer a single technology platform for its AP1000 reactors and for its SMR version, the AP300. The idea is for the smaller version to benefit from the experience and licensed technology from the larger units, some of which are already in operation.

Dan Sumner, President and CEO of Westinghouse, said: "We continue to make investments to strengthen our proven APX platform, and our ongoing collaboration with Amentum is expected to accelerate the licensing of the AP300 SMR with the NRC. Separately, our two companies will work together to enhance our engineering and execution capabilities for delivering 1 GW reactors at scale."

Read the full article at World Nuclear News:
https://world-nuclear-news.org/articles/westinghouse-and-amentum-sign-ap1000ap300-collaboration_agreements