Transparency is one advantage of certain molten salts that could serve as both a coolant and fuel carrier in an advanced reactor. For scientists studying molten salt chemistry and behavior at the laboratory scale, it helps if the test vessel is transparent too. Now, Oak Ridge National Laboratory has created a custom glass test cell with a 1-liter capacity to observe how gases move within a column of molten salt, the Department of Energy announced August 5.

Texans are likely to experience intermittent power outages this summer, according to an analysis by the Electric Reliability Council of Texas.

Members of ERCOT, the Public Utility Commission of Texas (PUCT), and others from the energy industry spoke to the state’s House of Representatives’ Committee on State Affairs earlier this week. ERCOT’s newest report indicates a 16 percent chance of an electric grid emergency and a 12 percent chance of rolling blackouts in August—likely occurring on nights when there is low wind power production.

Crownhart

“I’ve got nuclear power on the brain this week.” So writes climate and energy reporter Casey Crownhart in a recent edition the Spark, the MIT Technology Review’s climate newsletter. In her article, Crownhart describes how, while she was conducting research on advanced nuclear energy for another article, she “went down some rabbit holes on . . . potential options for future nuclear plants” and has “reached new levels of obsession” about nuclear energy.

Nuclear primer: Crownhart’s article could serve as a primer for both basic nuclear and advanced nuclear technologies. She begins by discussing the “two absolutely essential pieces” of conventional nuclear power plants—namely, the enriched uranium fuel and the pressurized water cooling system—and explains that the cooling system “keeps the whole thing from getting too hot and causing problems.”

NuScale Power and TerraPower both signed agreements earlier this week with South Korean entities to support development of the American firms’ respective reactor technologies.

The Canadian Nuclear Safety Commission (CNSC) has completed phase two of its prelicensing vendor design review for Terrestrial Energy’s Integral Molten Salt Reactor (IMSR), the Ontario-based advanced nuclear technology firm announced Tuesday. Phase one of the VDR commenced in April 2016 and was completed in November of the following year.

Scientists are searching for new materials to advance the next generation of nuclear power plants. In a recent study, researchers at the Department of Energy’s Argonne National Laboratory showed how artificial intelligence could help pinpoint the right types of molten salts, a key component for advanced nuclear reactors.

Kairos Power needs a source of high-purity fluoride salt to test its molten salt reactor design and ultimately to serve as the coolant in its grid-scale fluoride salt–cooled, high-temperature reactor (KP-FHR). As part of a cooperative development agreement with Materion Corporation, Kairos Power designed a molten salt purification plant (MSPP) that has just been commissioned at Materion’s campus in Elmore, Ohio.

As a source of carbon-free electricity, nuclear energy currently dominates in the United States. However, the light water reactors in the U.S. are approaching the end of their licensed service lives. Meanwhile, low-cost electricity generated by fossil fuel–based sources (such as natural gas) poses an ongoing challenge to the economic viability of commercial nuclear reactors. To enhance the competitiveness of the nuclear industry, we need to bring down the high operating and maintenance (O&M) costs through savings available from utilizing modern, efficient sensing and automation technologies.

Molten salt reactor technology first gained popularity in the 1960s, through the Molten Salt Reactor Experiment program at Oak Ridge National Laboratory. Now, decades later, a technology known as the molten salt nuclear battery (MsNB) is being developed to support the growing need for carbon-free, reliable, independent, and compact sources of small-scale heat and electrical power.

Global First Power’s (GFP) Micro Modular Reactor (MMR) project has moved to the formal license review phase with the Canadian Nuclear Safety Commission (CNSC), becoming the first small modular reactor to do so.

Undergraduate students work on the molten salt test loop at Abilene Christian University’s NEXT Lab. Photo: Jeremy Enlow/Steel Shutter Photography

Abilene Christian University (ACU) is leading a consortium called NEXTRA—the Nuclear Energy eXperimental Testing Research Alliance—with the Georgia Institute of Technology, Texas A&M University, and the University of Texas at Austin. NEXTRA was formed in spring 2019 to design, license, and commission a molten salt–fueled research reactor to be hosted on ACU’s campus in the central Texas city of Abilene. ACU and its partners recently announced funding of $30.5 million over the next three years from Abilene-based Natura Resources.