Rendering of the proposed Versatile Test Reactor. Image: Idaho National Laboratory

The Department of Energy won’t publish its draft environmental impact statement (EIS) for the Versatile Test Reactor (VTR) until mid-December. In a November 19 announcement on Twitter, however, the DOE’s Office of Nuclear Energy said that the yet-to-be-released EIS lists Idaho National Laboratory as the preferred alternative to site the VTR.

The DOE plans to submit the draft EIS for public comments early next month. The DOE won’t make a final decision on the design, technology selection, and location for the VTR until the completion of the EIS and record of decision in late 2021.

Clockwise from top left are Craig Piercy, Ray Furstenau, Tom O’Connor, Sean McDeavitt, Tara Neider, and Judi Greenwald.

The Versatile Test Reactor’s conceptual design was approved in September, and a draft environmental impact statement could be released within the week. The completion of more project milestones leading to operation in 2026, however, will depend on congressional appropriations. An expert panel described the need for a state-of-the-art test reactor and the value that the VTR could bring to the U.S. nuclear R&D community over its 60-year lifetime during a recent webinar—“Advanced U.S. Nuclear Research and Development: A Briefing and Discussion on the VTR”—hosted by Idaho National Laboratory.

Craig Piercy, ANS executive director/CEO, moderated the webinar, introducing a project update from VTR executive director Kemal Pasamehmetoglu and facilitating a Q&A session with representatives of the Nuclear Regulatory Commission, the Department of Energy, universities, reactor developers, and the Nuclear Innovation Alliance. A recording of the October 29 webinar is available online. INL also has a video and information online on the VTR.

“I think that the VTR represents part of a larger effort to modernize our infrastructure, develop a new set of technologies, and really preserve our global leadership in the field,” said Piercy. Read on to learn more about the promise the VTR holds for the nuclear community.

The proposed Versatile Test Reactor complex would cover about 20 acres. Image: INL

Now that the Department of Energy has approved Critical Decision 1 for the Versatile Test Reactor (VTR) project, the engineering design phase can begin once Congress appropriates funding, according to a September 23 announcement from the DOE’s Office of Nuclear Energy. The DOE has requested $295 million for the project in fiscal year 2021.

The news came nearly one month after a team led by Bechtel National Inc. (BNI), and including GE Hitachi Nuclear Energy (GEH) and TerraPower, entered into contract negotiations with Battelle Energy Alliance (BEA) for the design-and-build phase of the VTR. GEH’s sodium-cooled fast reactor PRISM technology was selected to support the VTR program in November 2018.

Artist’s rendering of the Versatile Test Reactor. INL Image

A team led by Bechtel National Inc. (BNI) that includes GE Hitachi Nuclear Energy (GEH) and TerraPower is in contract negotiations with Battelle Energy Alliance (BEA) for the design-and-build phase of the Versatile Test Reactor, BEA announced on August 24. As planned, the VTR would support irradiation testing of fuels, materials, and equipment designed for advanced reactors.

In an 86 to 14 vote, the Senate on July 23 passed the National Defense Authorization Act (NDAA) for Fiscal Year 2021, incorporating by amendment S. 903, the Nuclear Energy Leadership Act (NELA). The House of Representatives passed its version of the NDAA, which supports $740 billion in funding for national defense, earlier in the week in a less bipartisan manner, 295 to 125. Members of both chambers will now begin negotiations to hammer out a final bill to send to the president—a process that could take months.

With a new generation of nuclear reactors in the works, Idaho National Laboratory has embraced digital engineering (DE) as a means of achieving the same efficiencies that companies in the private sector have been able to realize in everything from concert halls to aircraft engines.

DE—using advanced technologies to capture data and craft design in a digitized environment—has been evolving since the 1990s. For Mortenson Construction, a worldwide construction firm, using virtual design and construction resulted in a cumulative 600 days saved over 416 projects and a 25 percent increase in productivity. By building digital twins for assets, systems, and processes, DE has avoided more than $1.05 billion in customer, production, and mechanical losses.

Leaders at INL recognized in 2018 that DE could be useful in the design and construction of new commercial and test reactors. Managing construction costs, timing, and performance will be essential to maintain U.S. competitiveness.