Vestinghaus: Lessons from the Vogtle Project as the Basis for Serial Construction of Nuclear Reactors in the United States

The Westinghouse company has filed a request with the U.S. Nuclear Regulatory Commission (NRC) for a revision of the AP1000 reactor design. The key objective is to establish Vogtle Unit 4 as a “reference standard” for all future projects, thereby radically accelerating licensing and enabling mass, fleet-scale construction of large reactors across the United States.

Submission of “Revision 20” of the Design Control Document (DCD) represents a strategic pivot for Westinghouse. The intention is to incorporate all changes and lessons learned during the arduous construction of Vogtle 3 and 4 in Georgia—the first and so far the only new nuclear units built in the United States in the last 30 years. Westinghouse's main selling point now is the elimination of the so-called “technological risk.”

Vogtle 4, which entered commercial operation in April 2024, will serve as the “baseline” — a proven solution that future investors can simply replicate. According to interim CEO Dan Sumner, the possibility for clients to obtain a standardized power plant without the risks inherent in the “first-built model” represents a real game changer.

Westinghouse explicitly stated that this plan aligns with President Donald Trump’s vision of building a large fleet of nuclear reactors in the United States. Standardization of the design enables faster licensing approvals (future applicants will simply refer to the already proven Vogtle 4 design), lower costs because reducing regulatory uncertainty directly lowers the cost of capital, and supply chain efficiency as serial construction of multiple units simultaneously allows suppliers to optimize the manufacture of parts.

Global context: China leads in serial construction

While the US is only just establishing standards for serial construction, China has already long since kicked off that process. In addition to four operational AP1000 reactors, China is currently constructing another 14 units of this type, with an additional five under contract. The Chinese version of the design (CAP1000) is already being used as proof that this model can be built efficiently when mass production is pursued.

Local context and questions of industrial capacity, knowledge, and the political-economic context

But this news has crucial significance precisely for Westinghouse, which is one of the oldest and most successful in this industry, but in the current circumstances faces a substantial problem: it is not sufficiently “vertically integrated” because the access to production and construction of nuclear facilities in this industry was defined by a specific historical moment in which it emerged: after World War II, during the period of rapid and swift electrification of the United States. Then Westinghouse “specialized” the design of the “Steam Supply” system while the design of the rest of the plant (turbines, generators…) was usually a technical and technological company in public ownership (Utility company) that could do so because of the branch of the economy that was rapidly expanding, due to its size and financial power. With the disappearance of those and such public utilities (as well as the waning rapid electrification) – the burden and risk of “integration” became much greater, so Westinghouse today has a problem: for their technology to be adopted, a substantial and serious technical and technological capacity of the customer country is required, and that is increasingly rare today. For, unlike Westinghouse, its competitors – Rosatom and EDF, for example – are far better integrated companies, so in their offer they have so-called “complete” systems and the technological and industrial capacity of the host country may be lower – which ultimately increases the number of potential customers. We interpret, thus, that this is also preparation for Westinghouse's future expansion into foreign markets.