RadWaste & Materials Monitor Vol. 18 No. 30
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RadWaste & Materials Monitor
Article 12 of 12
August 01, 2025

Round Up: TVA chief nuclear officer resigning; Last Energy moves forward in UK; Fermi America, Hyundai E&C signs MOU; X-Energy purchases new testing facility

By ExchangeMonitor

Chief Nuclear Officer Tim Rausch has announced his resignation from Tennessee Valley Authority, effective by March 1, 2026, according to a July 14 Securities and Exchange Commission filing

In his role as chief nuclear officer, Rausch is overseeing seven TVA nuclear reactors at: Browns Ferry in Alabama, Sequoyah in Tennessee, and Watts Bar in Tennessee. Rausch also serves as TVA’s executive vice president.

Rausch joined TVA in 2018 after serving as vice president and chief nuclear officer at the Susquehanna nuclear plant in Pennsylvania from 2009 to 2017. 

 

Last Energy announced it has completed a Preliminary Design Review with the United Kingdom nuclear regulator for its microreactor PWR-20. 

The review, which was completed in June, was conducted by UK nuclear regulators: the Office of Nuclear Regulation, the Environment Agency and Natural Resources Wales, according to Last Energy’s Tuesday press release.

The Washington, D.C. based nuclear microreactor developer Last Energy said the completion of the review puts it on track to be the first commercial microreactor in the United Kingdom. The company expects to have a site license decision for its first PWR-20, a 20 megawatt light water microreactor, in South Wales by 2027. 

 

Fermi America has signed a memorandum of understanding (MOU) with Hyundai Engineering and Construction to plan the nuclear component of Fermi’s ambitious 11,000 megawatt private grid in Texas.

The MOU includes joint planning of a nuclear-based hybrid energy project, development of a detailed business package by project stage, feasibility studies, basic design and engineering, procurement and construction projects, according to Fermi America’s Friday press release.

On June 26, Fermi America, in collaboration with Texas Tech University, unveiled plans to create a 11 gigawatt or 11,000 megawatts power and data campus to help meet the growing energy demands for artificial intelligence. The proposed projects intend to use nuclear energy along with other sources. 

 

X-Energy has recently purchased property in Frederick, Md. and intends to create a modern testing and training facility and offices, the company announced. 

The 90,000 square foot facility will be a non-nuclear testing facility dedicated to validate major components and systems of its Xe-100 small modular reactor for commercial deployment, according to X-Energy Wednesday press release.

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