Experimental Breeder Reactor I: A retrospective

An artist’s rendering of NuScale Power’s small modular nuclear reactor plant. Image: NuScale

Utah Associated Municipal Power Systems (UAMPS) announced on October 16 that the Department of Energy has approved a $1.4-billion, multiyear cost-share award to Carbon Free Power Project LLC, a new business entity wholly owned by UAMPS that was created for the development and construction of a 720-MWe NuScale power plant—the Carbon Free Power Project (CFPP)—to be sited at Idaho National Laboratory. The funding comes as UAMPS prepares to develop the first combined license application (COLA) for a small modular reactor.

The nuclear industry has embraced the risk-informed and performance-based (RIPB) decision-making process over the past two decades. Still, it remains a complex concept to explain in lay terms.

With that in mind, the American Nuclear Society will be kicking off an RIPB awareness social media campaign as part of Nuclear Science Week 2020, which begins today and runs through Friday. The campaign will link decision making to everyday events in a person's life and feature a series of images and seemingly easy questions requiring a choice to be made. For example, ANS asks, “Would you get rid of your car if the radio didn’t work?” or “Would you toss a lamp if the shade was dirty?”

Reactor operators Craig Winder (foreground) and Clint Weigel prepare to start up the ATRC Facility reactor at Idaho National Laboratory after a nearly two-year project to digitally upgrade many of the reactor’s key instrumentation and control systems. Photos: DOE/INL

At first glance, the Advanced Test Reactor Critical (ATRC) Facility has very little in common with a full-size 800- or 1,000-MW nuclear power reactor. The similarities are there, however, as are the lessons to be learned from efforts to modernize the instrumentation and control systems that make them valuable assets, far beyond what their designers had envisioned.

One of four research and test reactors at Idaho National Laboratory, the ATRC is a low-power critical facility that directly supports the operations of INL’s 250-MW Advanced Test Reactor (ATR). Located in the same building, the ATR and the ATRC share the canal used for storing fuel and experiment assemblies between operating cycles.

Two projects intended to accelerate the deployment of hydrogen production technology at existing U.S. light-water reactors received the bulk of the funding announced by the Department of Energy’s Office of Nuclear Energy (NE) on October 8 under the ongoing U.S. Industry Opportunities for Advanced Nuclear Technology Development funding opportunity announcement (FOA). Out of three projects with a total value of $26.9 million, the two involving hydrogen production have a total value of $26.2 million.

The Department of Energy has selected the recipients of cost-shared funding for its Advanced Reactor Demonstration Program (ARDP) and has notified Congress of the selection, the DOE press staff indicated by tweet on October 8. A public announcement of the recipients is expected this week.

Reactor designers and others looking to invest in advanced nuclear technology had until August 19 to apply through a funding opportunity announcement (FOA) announced in May, which included $160 million in initial funds to build two reactors within the next five to seven years. Applicants were encouraged to connect with other advanced reactor stakeholders—including technology developers, reactor vendors, fuel manufacturers, utilities, supply chain vendors, contractors, and universities—through the ARDP FOA Collaboration Hub and apply as a team. This means that the DOE’s selection of a particular reactor design stands to benefit more than just the team behind the reactor’s initial design.

Routine refueling of the HFIR in July 2015. Photo: Genevieve Martin/ORNL

This summer, the Department of Energy’s Basic Energy Sciences Advisory Committee (BESAC) completed a report, The Scientific Justification for a U.S. Domestic High-Performance Reactor-Based Research Facility, that recommends the DOE begin preparing to replace the pressure vessel of the High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory and to convert the facility to use low-enriched uranium fuel. It also recommends that work begin that could lead to a new research reactor. An article published on the American Institute of Physics website summarizes the report, which was requested by the DOE in 2019.

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.

Hunter

An op-ed piece in the September 17 Salt Lake City Tribune touts nuclear energy as needed for a carbon-free future. The piece was written by Doug Hunter, chief executive officer and general manager of Utah Associated Municipal Power Systems (UAMPS).

A look inside the TFTR plasma vessel. Photo: DOE

The Tokamak Fusion Test Reactor (TFTR) at Princeton University and the Fuel Cycle Facility (FCF) (now known as the Fuel Conditioning Facility) at Idaho National Laboratory have been designated as ANS Nuclear Historic Landmarks. The official awarding of the honors will occur during the 2020 ANS Virtual Winter Meeting, which begins November 16.

The TFTR received the award for demonstrating significant fusion energy production and tritium technologies for future nuclear fusion power plants and for the first detailed exploration of magnetically confined deuterium-tritium (D-T) fusion plasmas.

INL’s FCF and its Experimental Breeder Reactor II (EBR-II) were honored for demonstrating on-site recycling of used nuclear fuel back into a nuclear reactor.

Full-scale mockup of the upper third of the NuScale Power Module. Photo: NuScale

With a design that has just emerged from a rigorous safety evaluation by the Nuclear Regulatory Commission, and a customer—Utah Associated Municipal Power Systems (UAMPS)—getting ready to prepare a combined license (COL) application, what is next for Oregon-based NuScale Power and for near-term small modular reactor prospects in the United States? As milestones are reached, many want to know.

NuScale plans to supply twelve 60-MWe modules for a 720-MWe plant—called the Carbon Free Power Project (CFPP) by UAMPS—to be sited at Idaho National Laboratory. A smaller, 50-MWe module version of NuScale’s design recently became the first SMR to receive a final safety evaluation report (FSER) from the Nuclear Regulatory Commission.

“The NRC design approval represents a significant de-risking factor for the CFPP,” said UAMPS spokesperson LaVarr Webb. The project is “making steady progress,” Webb said, adding that “UAMPS General Manager and CEO Doug Hunter has said it is much more important to do the project right than to do it fast.”