Nuclear News

Three companies that are part of a larger collaboration to develop and demonstrate Natrium, the fast reactor design recently introduced by TerraPower and GE Hitachi Nuclear Energy (GEH), were invited to participate in a webinar hosted by ClearPath to talk about Natrium’s design, fuel requirements, and load-following potential.

The September 21 webinar, titled “Natrium: Latin for Sodium, Big for Advanced Nuclear,” was moderated by Rich Powell, executive director of ClearPath, and featured TerraPower’s Chris Levesque and Tara Neider, Centrus Energy’s Dan Poneman, and Duke Energy’s Chris Nolan.

The Nuclear Regulatory Commission announced on September 21 that based on a review of 141 research and development grant proposals, it anticipates awarding more than $7.25 million in funding to 15 of the peer-reviewed proposals. The funding is part of the $16 million appropriated by Congress in fiscal year 2020 under the Integrated University Program.

While independent NRC review panels recommended the 15 R&D proposals for funding, the NRC’s Office of Nuclear Regulatory Research will make a final decision on the awards.

A virtual side event at the 64th General Conference of the International Atomic Energy Agency will spotlight U.S. reactor technologies. The free event, US Reactor Technologies: Flexible Energy Security for Real-World Challenges, will be held this Thursday, September 24, from 9:00 a.m. to 10:30 a.m. (EDT).

The event will highlight the capabilities of small modular reactors and other innovative reactors for addressing countries’ current needs. It will also examine anticipated challenges in the future, as well as underscore the need to act now.

The event is sponsored by the U.S. Department of Energy’s Office of Nuclear Energy. Advanced registration is required.

IAEA General Director Rafael Mariano Grossi speaks to socially distanced attendees at the agency’s 64th General Conference plenary session on September 21. Photo: D. Calma/IAEA

With special precautions in place due to the COVID-19 pandemic, the International Atomic Energy Agency commenced its week-long 64th General Conference yesterday with a plenary session that included remarks from Rafael Mariano Grossi, the agency’s director general.

“The latest IAEA annual projections show that nuclear power will continue to play a key role in the world’s low-carbon energy mix, with global nuclear electrical capacity seen nearly doubling by 2050 in our high-case scenario,” Grossi said, referring to a recently released agency report. “Climate change mitigation remains a key potential driver for maintaining and expanding the use of nuclear power.”

The IAEA conference runs through September 25.

A team of experts from the International Atomic Energy Agency have completed a review of the long-term operational safety of Unit 3 at Sweden’s Ringhals nuclear power plant, noting substantial improvements from a previous agency visit in 2018.

The review, which had been requested by the Swedish Radiation Safety Authority (SSM), the Nordic nation’s nuclear regulator, wrapped up September 18.

According to the IAEA, the Safety Aspects of Long Term Operation (SALTO) team focused on aspects essential to the safe long-term operation (LTO) of Unit 3—a 1,062-MWe three-loop pressurized water reactor that entered commercial operation in September 1981. (Ringhals houses two additional operating reactors: Unit 1, an 881-MWe boiling water reactor that began operation in January 1976, and Unit 4, an 1,102-MWe PWR that started up in November 1983. Another unit, Ringhals-2, was permanently shut down at the end of last year.)

The original design lifetime of Unit 3 will expire next year, but Vattenfall AB, the plant operator, is planning to extend operation for a total operational lifetime of 60 years.

The Nuclear Regulatory Commission has scheduled four webinars in October to present its draft environmental findings and receive comments on Interim Storage Partners’ (ISP) proposed consolidated interim storage facility for used nuclear fuel in Andrews County, Texas.

Information for the webinars will be posted on the NRC’s Public Meetings webpage. The webinars will be held at different times of the day to maximize opportunities for the public to participate and are tentatively scheduled for the following (all times are Eastern):

• October 1, 6 p.m. – 9 p.m.
• October 6, 2 p.m. – 5 p.m.
• October 8, 6 p.m. – 9 p.m.
• October 15, 11 a.m. – 2 p.m.

The International Atomic Energy Agency has just released its latest projections for energy, electricity, and nuclear power trends over the next 30 years. Compared with the previous year, the new projections are largely unchanged.

In the report's high-case scenario, the IAEA expects a rise in global nuclear electrical generating capacity of 82 percent, to 715 gigawatts. In the low-case scenario, that capacity is expected to drop 7 percent, to 363 gigawatts.

The report is titled Energy, Electricity and Nuclear Power Estimates for the Period up to 2050.

TerraPower announced on September 15 that it plans to work with Centrus Energy to establish commercial-scale production facilities for the high-assay, low-enriched uranium (HALEU) needed to fuel many advanced reactor designs.

The proposed investment in HALEU fuel fabrication is tied to a TerraPower-led submittal to the Department of Energy’s Advanced Reactor Demonstration Program (ARDP), which was created to support the deployment of two first-of-a-kind advanced reactor designs within five to seven years. TerraPower would like one of those designs to be Natrium, the 345-MWe sodium fast reactor that it has developed with GE Hitachi Nuclear Energy.

The board of directors of the Energy Communities Alliance (ECA), an organization known more for its work in advancing the cleanup of Department of Energy sites, is launching a new initiative aimed at supporting the development of new nuclear technologies. As announced by the ECA on September 15, the self-funded, one-year initiative will focus on small modular reactors, micro and advanced reactors, a skilled nuclear workforce, and new nuclear missions around DOE facilities. facilities.

“With growing bipartisan support for nuclear energy in Congress, new federal demonstration projects led by DOE and the Department of Defense, and notable investment from the private sector, local governments want to be meaningfully engaged—and prepared—to match the strengths and needs of our communities with new nuclear opportunities,” the ECA said in its announcement.

A report just released from the Clean Energy Ministerial’s (CEM) Nuclear Innovation: Clean Energy (NICE) Future initiative examines the potential roles that flexible nuclear energy generation can play in both current and future clean energy systems.

A product of the initiative’s Flexible Nuclear Campaign for Nuclear-Renewables Integration, the 154-page report, Flexible Nuclear Energy for Clean Energy Systems, includes the views of experts from government agencies, ministries, and industry organizations across the globe.

The report uses the term “flexibility” to mean the ability of an energy source to economically provide services when and where they are needed by end users. Energy services can include both electric and nonelectric applications using both traditional and advanced nuclear power plants and integrated systems, according to the report.

Artist's concept of the Wylfa Newydd project. Image: Horizon Nuclear Power

Tokyo-based Hitachi Ltd. today announced that it is withdrawing from the currently suspended Wylfa Newydd nuclear-build project in northwestern Wales. The announcement dashes the hopes raised last month by reports that Horizon Nuclear Power, the Hitachi subsidiary in charge of the project, was in talks with the U.K. government regarding a possible resuscitation.

Hitachi had put the project on hold some 20 months ago, and in today’s announcement the company cited the length of the suspension and the COVID-19 investment environment as factors in its decision.

The U.S. Department of Commerce and Rosatom on September 12 initialed a draft amendment extend the Agreement Suspending the Antidumping Investigation on Uranium from the Russian Federation, signed in 1992. Rosatom is Russia’s state atomic energy corporation.

Should the amendment receive final approval, it will extend the agreement to 2040.

An ASLB calls for closer scrutiny of concrete degradation at Seabrook.

An Atomic Safety and Licensing Board has rendered its decision on a challenge to a license amendment concerning concrete degradation—known as alkali-silica reaction, or ASR—at the Seabrook nuclear power plant, upholding the amendment but imposing four additional conditions. The board found the new conditions to be necessary to provide adequate protection of public health and safety, according to a September 11 Nuclear Regulatory Commission press release. (The ASLB is the NRC’s independent body charged with conducting adjudicatory hearings and deciding legal challenges to the agency’s licensing and enforcement actions.)

The challenge to NextEra Energy’s license amendment for Seabrook was brought in 2017 by the C-10 Research and Education Foundation, an opponent of license renewal for the New Hampshire facility, which houses one 1,248-MWe four-loop pressurized water reactor.

Some two weeks after its creation, the Ohio House Select Committee on Energy Policy and Oversight held its first hearing on September 10 to consider a potential repeal of the Ohio Clean Air Program Act (H.B. 6).

H.B. 6 is the sweeping energy law that includes subsidies for the state’s two nuclear power plants, Davis-Besse and Perry, and that is currently at the center of an alleged $61-million corruption scheme aimed at guaranteeing its passage.

Newly elected Ohio House Speaker Bob Cupp (R., Dist. 4)—who replaced Rep. Larry Householder (R., Dist. 72) as speaker following the latter’s July 21 arrest as the scheme’s alleged ringleader—announced the committee’s creation in late August. Cupp stated that its goal is “repealing House Bill 6 and replacing it with thoughtful legislation Ohioans can have confidence in.”

The committee’s initial hearing, however, focused only on efforts to immediately repeal the measure. Proponents of two repeal bills—one backed by Republicans (H.B. 746) and one by Democrats (H.B. 738)—argued their positions, with some displaying greater rhetorical gifts than others.

Radiation has benefited mankind in many ways, including its use as an energy source and an indispensable tool in medicine. Since the turn of the 20th century, society has sought ways to harness its potential, while at the same time recognizing that radiological exposures need to be carefully controlled. Out of these efforts, and the work of many dedicated professionals, the principles of justification, optimization, and limitation have emerged as guiding concepts.

Justification means that the use of radiation, from any radiation source, must do more good than harm. The concept of optimization calls for the use of radiation at a level that is as low as reasonably achievable (ALARA). Dose constraints, or limitation, are meant to assist in reaching optimization and protection against harm by setting recommended numerical levels of radiation exposure from a particular source or sources. Together, these three principles form the bedrock of the international radiation protection system that drives decision-­making and supports societal confidence that radiation is being used in a responsible manner.

Unit 5 at the Tianwan nuclear plant. Photo: CNNC

Unit 5 at the Tianwan nuclear power plant completed its full-power continuous operation assessment on September 8, meeting the conditions for commercial operation, China National Nuclear Corporation reported. The domestically designed ACPR-1000 pressurized water reactor will become CNNC’s 22nd reactor to provide power to China’s electric grid, raising the CNNC fleet’s installed capacity from 19.112 million kilowatts to 20.230 million, according to the company.

Tianwan-5 construction officially commenced on December 27, 2015, with the pouring of safety-related concrete. China’s National Nuclear Safety Administration issued a 40-year operating license for the unit on July 7 of this year, and two days later CNNC announced that first fuel loading had been completed. The reactor achieved initial criticality on July 27 and connected to the grid on August 8. Once commercial operation of the unit has begun, Tianwan will boast five operating reactors.

Ontario’s Darlington nuclear power plant. Photo: OPG

The latest phase of the Darlington nuclear power plant’s refurbishment project began last week with the start of the defueling of Unit 3, according to Ontario Power Generation (OPG). Originally scheduled to begin in May this year, Unit 3’s refurbishment was postponed due to the COVID-19 pandemic.

Located in Clarington, Ontario, Canada, the Darlington plant houses four 878-MWe CANDU pressurized heavy-water reactors, all of which entered commercial operation in the early 1990s. The 10-year refurbishment project—which was 10 years in the planning—commenced in earnest in October 2016, when Unit 2 was taken off line (NN, Dec. 2016, pg. 45). The refurbished Unit 2 was returned to service in early June, and in late July Unit 3 was shut down and disconnected from the grid in preparation for its refurbishment.

China is on track to overtake the United States in nuclear power capacity by 2026, according to GlobalData, a U.K.-based research and analytics company.

More than 160 GW of nuclear capacity will likely be added globally between 2020 and 2030, some 66 percent of which is anticipated to take place in China, India, and Russia, the company reported on September 9. China alone is set to account for more than 50 percent (83 GW) of the new capacity, followed by India with 8.9 percent (14.5 GW) and Russia with 6.4 percent (10.5 GW). GlobalData also projects that during the same period, more than 76 GW of nuclear capacity will be retired.

The NSTX-U “umbrella.” Photo: Elle Starkman/ PPPL Office of Communications

The Department of Energy on September 8 announced funding for research at the National Spherical Tokamak Experiment Upgrade (NSTX-U), an Office of Science user facility at the DOE’s Princeton Plasma Physics Laboratory in Princeton, N.J.

Total planned funding is $17 million for the NSTX-U work over five years in duration. As much as $6 million in fiscal year 2020 dollars and out-year funding could be available this year, contingent on congressional appropriations and satisfactory progress.

The initiative will support experiments, data analysis, and computer modeling and simulation of plasma behavior. A major focus will be on the start of laying the scientific groundwork for a next-generation facility through better understanding of the behavior of plasmas in spherical tokamaks, the DOE said.