Noting that both presidential candidates are opposed to the Yucca Mountain repository project in Nevada, David Klaus writes in the Bulletin of Atomic Scientists that “it is time for everyone else to accept that Yucca Mountain is finally off the table, and for the United States to begin to seriously consider realistic alternatives for safely managing the more than 80,000 tons of spent nuclear fuel currently sitting at 72 operating and shutdown commercial nuclear reactor sites across the country.”

Exelon Generation, operator of the largest nuclear reactor fleet in the United States, intends to downsize that fleet next year by retiring its Byron and Dresden plants. In an announcement released early this morning, Exelon said that the two-unit Byron, located near Byron, Ill., would be permanently closed in September 2021, followed in November by the two-unit Dresden, located in Morris, Ill.

Byron is licensed to operate for another 20 years; Dresden, a much older facility, is licensed for another decade.

The American Nuclear Society is offering a members-only webinar on Wednesday, September 2, at 1:00 p.m. (EDT) on the topic of “Black Racial Justice in the Nuclear Community.”

A panel of ANS members will discuss racial justice and share experiences through their personal and professional roles.

The webinar will be the first of a series of actions organized by the Diversity and Inclusion in ANS Committee (DIA).

Registration is required for the webinar.

In actions related to its rules involving employee protection, the Nuclear Regulatory Commission on August 24 issued a proposed civil penalty of $606,942 to the Tennessee Valley Authority, as well as an order prohibiting a senior TVA executive from NRC-licensed activities for five years and a violation notice to a second executive.

Following investigations completed in October 2019 and January 2020, the NRC concluded that two former TVA employees had been subjected to reprisals for raising concerns regarding a chilled work environment.

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.

With the support of the European Nuclear Education Network, the Nuclear Energy Agency (NEA) is hosting an online event on August 27, at 7 a.m. EDT (1 p.m. in Paris).

The event will celebrate and recognize the accomplishments of the graduating classes of 2020 and 2021, especially those within the nuclear science and technology fields.

The event is free and open to all. Registration is required.

High winds that caused damage across central Iowa last week have prompted NextEra Energy to close the Duane Arnold nuclear power plant about two months earlier than originally planned. The plant’s 622-MWe boiling water reactor has been off line since August 10, when a line of intense, fast-moving windstorms, called derechos, caused a loss of off-site power and damaged the plant’s cooling towers. NextEra had planned to permanently shut down Duane Arnold, Iowa’s only nuclear power reactor, on October 30.

Global nuclear power generation in 2019 totaled 2,657 TWh, second only to the 2,661 TWh generated in 2006, according to the World Nuclear Performance Report 2020, released yesterday by the World Nuclear Association. This is the seventh consecutive year that nuclear generation has increased, the WNA noted, with output 311 TWh higher than in 2012.

“In 2020, the world’s nuclear reactors have shown resilience and flexibility, adapting to changes in demand while ensuring stable and reliable electricity supplies,” said WNA Director General Agneta Rising.

All six commissioners from Ohio’s Lake and Ottawa counties—home to the Perry and Davis-Besse nuclear plants—joined forces last week to express their opposition to an immediate repeal of the Ohio Clean Air Program Act (H.B. 6), which was tainted by last month’s scandal involving former Ohio Speaker of the House Larry Householder and four associates.

Signed into law by Ohio Gov. Mike DeWine in July last year—rescuing Perry and Davis-Besse from premature closure—H.B. 6 has become the subject of multiple calls for repeal since Householder’s July 21 arrest, including one from DeWine himself.

The Department of Energy on August 19 announced several awards to research teams applying artificial intelligence and machine learning to fusion energy. The planned total funding of $21 million is targeted at projects with time frames of up to three years; $8 million in fiscal year 2020 funding has already been committed to the work. Delivery of the balance-of-project funding will depend on future congressional appropriations.

“These awards will enable fusion researchers to take advantage of recent rapid advances in artificial intelligence and machine learning,” said Chris Fall, director of the DOE’s Office of Science. “AI and ML will help us to accelerate progress in fusion and keep American scientists at the forefront of fusion research.”

The Generation IV International Forum (GIF) is hosting a free webinar on August 26 on the topic of “Molten Salt Reactor Safety Evaluation—A U.S. Perspective.”

The webinar, which is intended for policy makers, managers, regulators, students, and the general public, will start at 8:30 a.m. (EDT). Registration is required.

Kazatomprom is extending uranium production cuts. Photo: Kazatomprom

Kazatomprom, Kazakhstan’s state-owned uranium production company, will continue “flexing down” production by 20 percent through 2022, compared to the planned levels under subsoil use contracts, the company announced last week. It will also maintain its 20 percent reduction against subsoil use contracts in 2021, with no additional production planned to replace volumes lost in 2020 due to measures taken to combat COVID-19.

Kazatomprom does not expect to return to full subsoil use contract production levels until a sustained market recovery is evident and demand and supply conditions signal a need for more uranium, the company noted.

In its recently released party platform, the Democratic Party says it favors a “technology-neutral” approach to energy that includes “all zero-carbon technologies, including hydroelectric power, geothermal, existing and advanced nuclear, and carbon capture and storage,” Robert Bryce writes in an article published Sunday on the Forbes blog. The statement marks the first time since 1972 that the Democratic Party has said anything positive in its platform about nuclear energy, according to Bryce.

NNSA Administrator Lisa Gordon-Hagerty spoke during the agency's 20th Anniversary Celebration event that recognized milestones at the Pantex Plant. Source: NNSA

Coinciding with the 20th anniversary of the creation of the Department of Energy's National Nuclear Security Administration, NNSA administrator Lisa Gordon-Hagerty is continuing with her trip to visit NNSA’s eight laboratories, plants, and sites.

Last week, Gordon-Hagerty was at the Pantex Plant, in Amarillo, Texas, for a 20th Anniversary Celebration of the NNSA.

So far, the tour of sites, which began in July, has taken Gordon-Hagerty to the Savannah River Site in Aiken, S.C.; Sandia National Laboratories and the NNSA Albuquerque Complex in Albuquerque, N.M.; and Los Alamos National Laboratory in Los Alamos, N.M., in addition to the Pantex Plant. She is expected to complete the tour by year’s end.

This flowchart is housed in a library of Sankey diagrams at flowcharts.llnl.gov and is also available as a PDF. Source: Department of Energy/LLNL, based on EIA data

Every year, Lawrence Livermore National Laboratory releases flowcharts illustrating U.S. energy consumption and use. The flowcharts, called Sankey diagrams, allow scientists, analysts, and other decision makers to compare the contributions made by various energy sources, including nuclear power, and the end uses of those sources, including residential, industrial, commercial, and transportation markets. Taken as a series of annual snapshots, energy use trends and opportunities quickly become apparent.

This year, in addition to releasing the 2019 energy flowchart, the lab issued state-by-state energy flowcharts for 2015–2018 and carbon emissions charts for 2014–2017. It is currently at work on charts of international energy use that it hopes to release by the end of the year.

Shellenberger

U.S. civil nuclear cooperation pacts—so-called 123 Agreements—are too strict, says Michael Shellenberger, founder and president of Environmental Progress, in an August 13 City Journal article.

Shellenberger reasons that the 123 Agreements force nations that have expressed interest in developing nuclear energy programs to turn to Russia and China. That result is bad, Shellenberger continues, not only for the American nuclear industry, but also for the global nonproliferation movement.

Crystal River-3 as it is now and how Duke Energy envisions the site will look by 2027.

The Florida Public Service Commission voted unanimously on August 18 to approve Duke Energy Florida’s plan to accelerate the decontamination and decommissioning of its Crystal River-3 nuclear power plant. The commission vote marks the final regulatory approval needed to finalize, in October, Duke Energy’s contract with Accelerated Decommissioning Partners (ADP). According to Duke Energy, ADP will complete the decommissioning by 2027, rather than the 2074 date that was originally announced.

Duke Energy permanently ceased operations at Crystal River-3 in 2013 and, in June 2019, the company applied to the Nuclear Regulatory Commission to transfer the reactor’s license to ADP, a joint venture of NorthStar Group Services and Orano Decommissioning Holdings. The NRC approved the license transfer in April. NorthStar will also be contracted to demolish the permanently shut down coal-fired Crystal River-1 and -2.

Fuel compact cross section showing dozens of individual TRISO particles.

Tristructural isotropic (TRISO) coated particle fuel is a robust, microencapsulated fuel form developed originally for use in high-temperature gas-cooled reactors (HTGRs). The particles consist of a spherical fissile kernel surrounded by several layers of pyrocarbon and a silicon carbide (SiC) layer. The particles are formed into cylindrical or spherical fuel forms using a resinated graphite matrix material for insertion into an HTGR. The kernel and coating layers together act to retain fission products within the particle during normal reactor operation and during postulated accidents; TRISO particles can maintain structural integrity at extremely high temperatures, reaching as high as approximately 1,600 °C in limiting HTGR accidents. This limits the fission product activity circulating in the helium coolant and the activity released to the environment during accidents. Acceptable performance of TRISO particles is therefore essential for reactor safety.

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.

Van Hollen

Amid news stories of possible undeclared nuclear facilities in Saudi Arabia and China's involvement with them (see here and here, for instance), Sen. Chris Van Hollen (D., Md.) on August 19 led a bipartisan group of senate colleagues in sending a letter to President Trump requesting more information on the matter.

Cosigners included Sens. Rand Paul (R., Ky.), Jeff Merkley (D., Ore.), Susan Collins (R., Maine), Tim Kaine (D., Va.), and Jerry Moran (R., Kan.).