ANS designates TFTR and FCF for landmark status

(photo: ITER Project gangway assembly)

The promise of hydrogen fusion as a safe, environmentally friendly, and virtually unlimited source of energy has motivated scientists and engineers for decades. For the general public, the pace of fusion research and development may at times appear to be slow. But for those on the inside, who understand both the technological challenges involved and the transformative impact that fusion can bring to human society in terms of the security of the long-term world energy supply, the extended investment is well worth it.

Failure is not an option.

Shopify founder Tobias Lütke is backing General Fusion with an undisclosed capital investment through his Thistledown Capital investment firm, the Canadian fusion technology firm announced January 14.

In an article published the same day by TechCrunch, Jonathan Shieber noted that a separate investments by Jeff Bezos, founder and chief executive of Amazon, first made through his venture capital fund nearly a decade ago, means General Fusion “has the founders of the two biggest e-commerce companies in the Western world on its cap table.”

The Department of Energy launched a 14-day public review and comment period on January 11 on a draft environmental assessment for a proposal to construct the Microreactor Applications Research Validation & EvaLuation (MARVEL) project microreactor inside Idaho National Laboratory’s Transient Reactor Test (TREAT) Facility.

The basics: The MARVEL design is a sodium-potassium–cooled thermal microreactor fueled by uranium zirconium hydride fuel pins using high-assay, low-enriched uranium (HALEU). It would be a 100-kWt reactor capable of generating about 20 kWe using Stirling engines over a core life of about two years.

The DOE proposes to install the MARVEL microreactor in a concrete storage pit in the north high bay of the TREAT reactor building. Modifications to the building to accommodate MARVEL are anticipated to take five to seven months. Constructing, assembling, and performing preoperational testing are expected to take another two to three months prior to fuel loading.

From the time we discovered how the sun produces energy, we have been captivated by the prospect of powering our society using the same principles of nuclear fusion. Fusion energy promises the bounty of electricity we need to live our lives without the pollution inherent in fossil fuels, such as oil, gas, and coal. In addition, fusion energy is free from the stigma that has long plagued nuclear power about the storage and handling of long-lived radioactive waste products, a stigma from which fission power is only just starting to recover in green energy circles.

Here is a look back at the top stories of 2020 from our Research and Applications section in Newswire and Nuclear News magazine. Remember to check back to Newswire soon for more top stories from 2020.

Research and Applications section

• ARDP picks divergent technologies in Natrium, Xe-100: Is nuclear’s future taking shape? The Department of Energy has put two reactor designs—TerraPower’s Natrium and X-energy’s Xe-100—on a fast track to commercialization, each with an initial $80 million in 50-50 cost-shared funds awarded through the Advanced Reactor Demonstration Program. Read more.

An engineered stainless steel container designed to hold LLW at Hanford. Photo: Bechtel National, Inc.

A Department of Energy report to the U.S. Congress shows that the reclassification of high-level radioactive waste could save more than $200 billion in treatment and disposal costs while allowing DOE sites to be cleaned up sooner—all still without jeopardizing public health and safety.

The report, Evaluation of Potential Opportunities to Classify Certain Defense Nuclear Waste from Reprocessing as Other than High-Level Radioactive Waste, identifies potential opportunities for the DOE to reduce risk to public and environment while completing its cleanup mission more efficiently and effectively. Those opportunities are based on the DOE’s 2019 interpretation of the statutory term HLW, which classifies waste based on its radiological characteristics rather than its origin.

Under the DOE’s interpretation of HLW, waste from the reprocessing of spent nuclear fuel may be determined to be non-HLW if the waste (1) does not exceed concentration limits for Class C low-level radioactive waste as set out in federal regulations and meets the performance objectives of a disposal facility; or (2) does not require disposal in a deep geologic repository and meets the performance objectives of a disposal facility as demonstrated through a performance assessment conducted in accordance with applicable requirements.

The Department of Energy has begun the environmental review of its proposed Versatile Test Reactor (VTR), releasing a draft environmental impact statement (EIS) for public review and comment on December 21. The sodium-cooled, fast-neutron-spectrum VTR is intended to enhance and accelerate U.S. research, development, and demonstration of innovative nuclear energy technologies.

Mary Lou Dunzik-Gougar

You know the old saying that those who can, do, and those who can’t, teach? Well, I say anyone thinking that way should be kept far away from students!

In my time at Argonne National Laboratory and Idaho National Laboratory, I worked with incredible scientists and engineers doing cutting-edge research. Unfortunately, making progress in research is not always conducive to the education and training of those who haven’t yet gained the necessary expertise. And there is an interesting phenomenon that occurs the more one gains in education and experience: We tend to forget what we were like before, what it was like not to know everything we do now. More than one of my PhD colleagues at the national labs dismissed the education and outreach efforts that I pursued in my spare time: scouts, K-12 classroom visits, teacher workshops, science expos, etc., viewing any focus other than the truly technical as just “fluffy” and a waste of valuable time and effort.

The Fusion Energy Science Advisory Committee (FESAC), which is responsible for advising the Department of Energy’s Office of Science, on December 4 published the first public draft of Powering the Future: Fusion and Plasmas, a 10-year vision for fusion energy and plasma science. FESAC was charged with developing a long-range plan in November 2018.

The scope: The report, which is meant to catch the eye of leaders in the DOE, Congress, and the White House, details the needs of the fusion and plasma program identified by a FESAC subcommittee—the DOE Fusion Energy Sciences Advisory Committee for Long Range Planning—with the help of the fusion research community. The yearlong Phase 1 of the Community Planning Process, organized under the auspices of the American Physical Society’s Division of Plasma Physics, gathered input and yielded a strategic plan that is reflected in the FESAC’s draft report.

INL will need technical, innovative, and safety-minded construction personnel for the advanced nuclear projects ahead. Photo: INL

Around the world, researchers in the energy industry are engaging in the work of studying, testing, and developing carbon-free energy solutions. Throughout these circles, many scientists and engineers are embracing the possibilities of advanced nuclear technologies, including small modular reactors and microreactors. While these innovative technologies are poised to address some of the nation’s biggest concerns, they also present their own unique challenges, including the need for a large and talented workforce within the construction industry.

Fortunately, the state of Idaho and its key nuclear players are well-equipped for this challenge. In southeastern Idaho, home of Idaho National Laboratory, strong partnerships throughout the region have forged networks between the lab and the educational institutions, employers, trades, and unions that are working to establish this highly specialized nuclear talent pipeline.