Nuclear News

Published since 1959, Nuclear News is recognized worldwide as the flagship trade publication for the nuclear community. News reports cover plant operations, maintenance and security; policy and legislation; international developments; waste management and fuel; and business and contract award news.


MHI picked to lead development of Japanese fast reactor

July 25, 2023, 7:02AMNuclear News

Concept art of a tank type sodium-cooled fast reactor. (Image: MHI)

The Japanese government has chosen Mitsubishi Heavy Industries (MHI) to head up the conceptual design and research and development of a demonstration sodium-cooled fast reactor, the Tokyo-based engineering firm announced recently.

MHI is to oversee the work in partnership with Mitsubishi FBR Systems Inc. (MFBR), an MHI Group engineering company established in 2007 to develop and design fast breeder reactors.

Conceptual design work is scheduled to commence in fiscal year 2024, with operation of the unit slated for the 2040s.

Reactor roadmap: According to MHI’s announcement, in the strategic roadmap for fast-reactor development adopted by the Japanese Cabinet in December 2018, a policy was defined to assess the efficacy of several types of technologies to be developed following a competition among private-sector companies. The roadmap was subsequently revised by the Cabinet in December 2022, at which time two decisions were made: (1) to select a sodium-cooled fast reactor as the target of the conceptual design of the demonstration unit and (2) to select a manufacturer to serve as the core company in charge of the reactor’s design and requisite R&D.

ORNL’s Spallation Neutron Source reaches 1.7-MW power level

July 24, 2023, 3:03PMNuclear News
Upgrades to the particle accelerator enabling the record 1.7-MW beam operating power at the ORNL’s SNS included adding 28 high-power radio-frequency klystrons (red tubes) to provide higher power for the accelerator. (Photo: Genevieve Martin/ORNL)

The Spallation Neutron Source (SNS) at the Department of Energy's Oak Ridge National Laboratory set a world record when its particle accelerator beam operating power reached 1.7 MW, an improvement on the facility’s original design capability of 1.4 MW, ORNL announced on July 21. That higher power provides more neutrons for researchers who use the Office of Science user facility for materials science investigations.

NRC assisting Ghana on developing nuclear regulatory framework

July 24, 2023, 12:00PMNuclear News

The U.S. Nuclear Regulatory Commission and the Ghana Nuclear Regulatory Authority reaffirmed last week its shared commitment to continue cooperation on nuclear safety and regulation for the African nation.

All ITAACs for Vogtle-4 completed

July 24, 2023, 9:30AMNuclear News
Vogtle’s Unit 4 reactor in June. (Photo: Georgia Power)

Southern Nuclear, operator of Georgia’s Vogtle plant, has informed the Nuclear Regulatory Commission that all 364 inspections, tests, and analyses for Unit 4 have been performed, and all acceptance criteria for the new reactor have been met. Primary plant owner Georgia Power made the announcement last Friday.

NNSA provides funding for new apprenticeship programs

July 24, 2023, 7:00AMNuclear News

The Department of Energy’s National Nuclear Security Administration (NNSA) announced on July 20 that it has awarded two organizations—Hardinge Inc. and the Association of Journeyman and Apprentices of the Plumbing and Pipefitting Local 412—five-year grants totaling $2.17 million. The funds will be used to develop and strengthen apprenticeship training programs aligned with the NNSA’s needs for technician positions throughout its laboratories, plants, and sites.

Gas-cooled reactors and Fort St. Vrain

July 21, 2023, 3:04PMNuclear NewsJeremy Hampshire
The National Reactor Testing Station (Photo: DOE)

Gas-cooled reactors have roots that reach way back to the development of early experimental reactors in the United States and Europe. In the United States, early experimental reactors at Oak Ridge and Brookhaven National Laboratories were air-cooled, as were early production reactors known as the “Windscale Piles” in the United Kingdom. Dragon, also located in the United Kingdon and operational from 1965 to 1976, used helium as the coolant and graphite as the moderator.

Darlington-3 refurbishment completed ahead of schedule

July 21, 2023, 12:00PMNuclear News
The Darlington nuclear power plant. (Photo: OPG)

Ontario Power Generation has achieved another milestone in its massive Darlington nuclear plant refurbishment project, and in rather impressive fashion: The Unit 3 CANDU reactor has been reconnected to Ontario’s electricity grid 169 days ahead of schedule, according to a July 18 OPG media release.

Energy Harbor files for Perry life extension

July 21, 2023, 9:30AMNuclear News
The Perry nuclear power plant. (Photo: ANS)

Energy Harbor has filed its initial license renewal application for the Perry nuclear power plant, requesting an additional 20 years of operation for the facility, the Nuclear Regulatory Commission announced yesterday. Dated July 3, the 2,427-page application is now available on the agency’s website.

National Academies report focuses on Hanford cleanup

July 21, 2023, 7:00AMNuclear News
A view of the Low-Activity Waste Facility at the Hanford Site. (Photo: DOE)

The National Academies of Sciences, Engineering and Medicine (NASEM) recently held a public meeting to discuss its third and final report centered on the Department of Energy’s Office of Environmental Management’s tank waste cleanup mission at the Hanford Site in Washington state.

What is at the forefront of PRA today?

July 20, 2023, 3:00PMNuclear NewsAskin Guler Yigitoglu

Probabilistic risk assessment is a mature technology that has benefited the safety of the current fleet of light water reactors in the United States since the 1970s. Most utilities have used PRA models as part of risk-informed in-service inspection programs to identify degraded plant conditions for more than two decades. The trends indicate an increasing use of risk-informed applications to support safe and cost-effective long-term operations.

Data science and predictive analytics innovations offer the opportunity to assess, monitor, and manage risk effectively. PRA models are coupled with digital twins informed by sensors and system simulators that provide real-time risk insights. Dynamic PRA approaches were initially introduced to beyond-design-basis event models for LWRs and explicitly model time-dependent operator behavior by simulating the actual plant response. Enhancing the quantification speed and memory usage of the PRA computational tools (both dynamic and traditional) is crucial for future risk-informed efforts.

Seaborg, Norsk Kjernekraft to explore CMSRs for Norway

July 20, 2023, 12:00PMNuclear News
Seaborg cofounder Eirik Eide Pettersen (left) and Norsk Kjernekraft CEO Jonny Hesthammer at a letter-of-intent signing ceremony. (Photo: Seaborg)

Denmark’s Seaborg Technologies and Norsk Kjernekraft (aka Norwegian Nuclear Power) have signed a letter of intent to investigate the possibility of deploying Seaborg’s 100-MWe compact molten salt reactor (CMSR) in Norway.

X-energy, Energy Northwest team for multiple SMR deployments

July 20, 2023, 9:43AMNuclear News

Small modular reactor firm X-energy and Energy Northwest, owner and operator of the Columbia nuclear power plant in Richland, Wash., announced yesterday the signing of a joint development agreement (JDA) for up to 12 Xe-100 SMRs in central Washington, capable of generating up to a total of 960 MWe.

The JDA defines and details the scope, location, and schedule under which the commercial development of the project will move forward, the companies said, adding that they will also work together to determine the best approaches to licensing and regulatory matters, as well as the project delivery model. Currently, the Xe-100 project is expected to be developed at a site adjacent to the Columbia facility, with the first module coming on line by 2030.

DOE ramps up plutonium oxide production to fuel NASA’s deep space missions

July 20, 2023, 7:01AMNuclear News
ORNL has developed an automated metrology system to produce Pu-238 pellets. (Photo: ORNL)

The Department of Energy recently shipped half a kilogram of plutonium oxide pellets from Oak Ridge National Laboratory to Los Alamos National Laboratory, the agency announced July 18, marking the largest such shipment since the DOE restarted domestic plutonium-238 production over a decade ago.

NNSA officials visit country of Georgia in support of nuclear safeguards

July 19, 2023, 12:00PMNuclear News
NNSA administrator Jill Hruby surveys the Administrative Boundary Line at South Ossetia. Russia occupies Georgian territory on the other side of the line. (Photo: NNSA)

National Nuclear Security Administration administrator Jill Hruby and deputy administrator for defense nuclear nonproliferation Corey Hinderstein visited the country of Georgia in southeastern Europe last month to discuss the NNSA’s bilateral partnerships, seek areas of cooperation, and get a closer look at how nuclear security is implemented at active border crossings in the region.

U.K. launches Great British Nuclear, SMR competition; new funding announced

July 19, 2023, 9:35AMNuclear News

Promising a “massive revival of nuclear power,” the U.K. government yesterday officially launched Great British Nuclear—an “arms-length” governmental body established to help ramp up the nation’s nuclear capacity to as much as 24 GW by 2050. Alongside, the U.K. announced a GBN-managed small modular reactor competition.

Centrus plans to add HALEU centrifuge cascades under TerraPower MOU

July 19, 2023, 7:02AMNuclear News
View of the machine controls electronics of Centrus’s HALEU demonstration cascade. (Photo: Centrus)

TerraPower and Centrus Energy Corp. announced on July 17 that they have signed a memorandum of understanding to “significantly expand their collaboration aimed at establishing commercial-scale, domestic production capabilities for high-assay, low-enriched uranium (HALEU)” to supply fuel for TerraPower’s first Natrium reactor. Nearly three years ago, TerraPower first announced plans to work with Centrus to establish commercial-scale HALEU production facilities. The two companies signed a contract in 2021 for services to help expedite the commercialization of enrichment technology at Centrus’s Piketon, Ohio, facility.

Slovakia shows interest in deploying Westinghouse reactors

July 18, 2023, 3:06PMNuclear News
From left: Petr Brzezina, president, Westinghouse Czech Republic and Slovakia; Elias Gedeon, senior vice president, Westinghouse commercial operations; Gautam Rana, U.S. ambassador to Slovakia; and Pavol Štuller, chairman of the board and chief executive officer, JAVYS. (Photo: Westinghouse)

Westinghouse Electric Company yesterday announced the signing of two memorandums of understanding with Slovakia’s state-owned nuclear company JAVYS regarding the potential deployment of the U.S. firm’s AP1000 reactors and AP300 small modular reactors.

University of Rochester aims for mass production of inertial fusion energy targets

July 18, 2023, 9:30AMNuclear News
A view through the 20-cm disk amplifiers of the OMEGA laser at the University of Rochester’s Laboratory for Laser Energetics. (Photo: University of Rochester/J. Adam Fenster)

Proponents of inertial fusion energy celebrated in December 2022, when researchers at the National Ignition Facility at Lawrence Livermore National Laboratory achieved fusion ignition by subjecting a carefully crafted diamond cryogenic sphere containing frozen deuterium-tritium fuel to NIF’s laser energy. NIF has yet to repeat the feat, in part because that facility was not designed to produce fusion energy, and ignition requires near-perfect targets. For inertial fusion energy to serve as a reliable power source, it will require swift, reliable, and economic target production.

Lawmakers ask NRC to “carefully review” Part 53 language

July 18, 2023, 7:00AMNuclear News

A large, bipartisan group of Capitol Hill lawmakers last Friday wrote a letter to the members of the Nuclear Regulatory Commission urging them “to carefully review and modify as necessary” the 10 CFR Part 53 draft licensing framework for advanced nuclear reactor technologies.