Nuclear News

Nuclear technology for space exploration just took a giant step forward. Researchers at the National Nuclear Security Administration and the National Aeronautics and Space Administration have conducted a series of tests as part of NASA’s Kilopower project for the development of a nuclear space reactor. The results have been published in a special issue of the American Nuclear Society’s journal Nuclear Technology, which includes eight papers that cover the design and testing of the Kilowatt Reactor Using Stirling TechnologY (KRUSTY) reactor, a 1-kWe space reactor with a cast uranium core, heat pipes, and Stirling engine power conversion.

A fish-eye view of the refurbished Darlington-2. Photo: Ontario Power Generation

Ontario Power Generation’s (OPG) massive project to refurbish all of its Darlington nuclear power plant reactors has reached its first major milestone with the successful completion of Unit 2’s refurbishment and reconnection to Ontario’s electricity grid, the utility stated in a June 4 media release.

The Darlington plant, located in Clarington, Ontario, Canada, houses four 878-MWe PHWR CANDU reactors, all of which entered commercial operation in the early 1990s. The 10-year refurbishment project, which also was 10 years in the planning, began in earnest in October 2016, when Unit 2 was taken off line (NN, Dec. 2016, pg. 45).

Brouillette

Energy Secretary Dan Brouillette said in a June 1 announcement to Department of Energy employees that given the recent lifting of stay-at-home orders in the Washington, D.C., area, the department will allow some federal employees to return to work at DOE headquarters, beginning on June 8.

Framatome has completed its acquisition of BWX Technologies’ U.S. commercial nuclear services business, the France-based company announced on June 2. With this transaction, the company said, Framatome expands its portfolio of equipment and tooling for nuclear power plant inspections and maintenance.

BWXT will receive an 118,000-square-foot manufacturing facility and the associated 11 acres of land from Framatome in the cashless exchange.

The 1,250-ton cryostat base is positioned over the ITER tokamak pit for installation. The base is the heaviest lift of the tokamak assembly. Photo: ITER

ITER, the world’s largest international scientific collaboration, is beginning the assembly of the fusion reactor tokamak that will include 12 essential hardware systems provided by US ITER, which is managed by Oak Ridge National Laboratory. The first major machine element to be installed is the 1,250-ton base of the cryostat, which was placed into the tokamak assembly pit on May 26. ITER is located in southeastern France.

The European Commission released a plan for rejuvenating Europe’s pandemic-damaged economy, including a green energy program that calls for “rolling out renewable energy projects, especially wind [and] solar, and kick-starting a clean hydrogen economy.” No mention was made of nuclear energy, however, an omission for which the commission was taken to task that same day by Foratom, the Brussels-based trade association for the European nuclear energy industry.

Concrete pour at the Hinkley Point C2 reactor. Photo: EDF Energy

Workers at the Hinkley Point C nuclear construction project in the United Kingdom have completed the 49,000-ton base for the station’s second reactor, Unit C2, hitting a target date set more than four years ago, according to EDF Energy.

Gender Champions in Nuclear Policy (GCNP), launched in November 2018, has released a report on the progress made during its inaugural year toward its goal of achieving gender equity in the nuclear policy field. According to a May 28 announcement, the group has had “mostly positive results.”

To get a job done, you need the right tool. Researchers now have one that will make their job easier—the Radioactivity and Damage (RAD) Calculator from the Department of Energy’s Nuclear Science User Facilities.

Most experiments conducted through the NSUF have the same underlying goal: quantifying irradiation effects on nuclear fuels and materials. Rather than doing a back-of-the-envelope calculation or a costly in-depth analysis with a nuclear engineer, users now have the flexibility to rapidly change experimental design parameters—such as selecting the reactor to be used, the sample location within the reactor, displacements per atom desired, and the time frame—and see which NSUF reactor can produce the desired result, all within seconds.

Artist’s rendering of the Sizewell site, with Sizewell C at right. Image: EDF Energy

Électricité de France subsidiary EDF Energy has submitted an application to the United Kingdom government’s Planning Inspectorate for a development consent order (DCO) to build a new power station, Sizewell C, at the Sizewell nuclear site in Suffolk. The agency received the application on May 27, after it had been deferred for two months because of the COVID-19 pandemic.

Robert J. Feitel was sworn in on May 28 by Nuclear Regulatory Commission Chairman Kristine Svinicki as the agency’s new inspector general. Feitel replaces Hubert T. Bell, who retired in 2019.

The Akademik Lomonosov, the world’s only floating nuclear power plant, has been fully commissioned, reports Rosatom, Russia’s state atomic energy corporation.

In the early years of the Nuclear News capacity factors survey, any factor over 70 was deemed excellent; any factor under 50 was considered poor. By that standard, all but two operating U.S. power reactors chalked up excellent performance during 2017–2019. A record 809.4 TWh of electricity was generated in the United States from nuclear energy in 2019, according to the U.S. Energy Information Administration (EIA), besting the record of 807.1 TWh set in 2018.

Nuclear News staff developed the capacity factors survey in the early 1980s as a way to identify the most productive reactors in an expanding fleet. Fleet improvement was the industry’s self-identified goal, but no one could anticipate the startlingly rapid pace of improvement, spurred by the Institute of Nuclear Power Operations (INPO), which boosted fleetwide performance to highs that continue today.

The Nuclear Regulatory Commission recently issued its Enforcement Program Annual Report for calendar year 2019, showing that 57 escalated enforcement actions were taken against NRC licensees last year. These actions included notices of violation (NOV ) of Severity Level III or higher, NOVs associated with findings of low-to-moderate, substantial, or high safety significance (color coded as white, yellow, or red findings, respectively), civil penalties, and orders, including confirmatory orders.

The Nuclear Regulatory Commission on May 18 sent a letter to Vice President Mike Pence in response to a coalition of critics who had written to the vice president in April, taking issue with the agency’s COVID-19–related actions.

The Blue Ridge Environmental Defense League (BREDL), a North Carolina–based antinuclear organization, is claiming that Vogtle-3—one of two 1,100-MWe AP1000 pressurized water reactors currently under construction at the Vogtle nuclear plant near Waynesboro, Ga.—is sinking.

The Nuclear Regulatory Commission is taking comments on its “Proposed Rule for Emergency Preparedness for Small Modular Reactors and Other New Technologies,” published in the Federal Register on May 12. The proposed rule and associated draft regulatory guide apply to non–light-water reactors and certain nonpower facilities.

The CB-20 module being installed at Vogtle-3. Photo: Georgia Power

A massive water tank has been placed atop the containment vessel and shield building roof at Vogtle-3, one of two AP1000 reactors currently under construction at Southern Company’s nuclear expansion project near Waynesboro, Ga. The installation represents the final module placement for the unit and marks the latest significant milestone to be reached at the Vogtle site.

The Nuclear Alternative Project (NAP), a nonprofit group supporting the use of advanced reactors in Puerto Rico, has released the findings of a preliminary feasibility study undertaken to explore in detail the potential for these devices on the Caribbean island. The 288-page study, Preliminary Feasibility Study for Small Modular Reactors and Microreactors for Puerto Rico, was sponsored by the Department of Energy. The study concludes that small modular reactors and microreactors could be part of Puerto Rico’s energy portfolio and potentially supply a substantial part of a strong and diverse zero-emission energy mix.

View of the top of the TREAT reactor.

The Transient Reactor Test (TREAT) Facility at Idaho National Laboratory was restarted in 2018 after being in safe standby mode since 1994. The June 2020 issue of the American Nuclear Society's Nuclear Technology (NT) journal features seven technical papers related to the benchmarking of the facility. Wade Marcum, a lead researcher on the project and guest editor of June’s NT issue, explained, “The goal of this effort was to understand, to the best of our ability, the expected response of the TREAT reactor upon its restart.”