Nuclear News

The Zephyr system uses probes for steam generator inspections. Photos: APS

The Palo Verde Nuclear Generating Station, a three-unit pressurized water reactor plant operated by Arizona Public Service Company, has started using an inspection technology relatively new to the nuclear industry. The technology, called smart pigs (an acronym for “piping inline gauges”), has previously been employed by oil and gas companies for inspecting and cleaning underground pipes. After testing and analyzing smart pig products from several companies, Palo Verde’s underground piping consultant, Dan Wittas, selected a smart pig suitable for navigating the tight-radius bends in the plant’s spray pond piping. The spray pond system consists of piping, a pump, and a reservoir where hot water (from the Palo Verde plant) is cooled before reuse by pumping it through spray nozzles into the cooler air. Smart pigs work by using the water’s flow through the piping to move an inspection tool within the pipe itself. The technology replaces the previous method of pipe inspection, in which various relatively small sections of piping were unearthed and directly inspected, and were considered to be representative examples of the overall piping condition. In contrast, the smart pigs obtain corrosion levels for the length of piping traveled through and allow a corrosion baseline to be established.

From left: Secretary of Defense Mark Esper and Secretary of State Mike Pompeo participate in the U.S.-India 2+2 Ministerial Dialogue plenary session with Indian Defense Minister Rajnath Singh and Indian External Affairs Minister Subrahmanyam Jaishankar in New Delhi, India, on October 27, 2020. Photo: State Department/Ron Przysucha

In New Delhi earlier this week, U.S. Secretary of State Mike Pompeo and Secretary of Defense Mark Esper joined their Indian counterparts, Minister of External Affairs Subrahmanyam Jaishankar and Minister of Defense Rajnath Singh, for the third U.S.-India 2+2 Ministerial Dialogue—a yearly confab focused on strengthening the strategic relationship between the two nations. (In February of this year, the White House elevated that relationship to Comprehensive Global Strategic Partnership status.)

The first 2+2 dialogue took place in New Delhi in September 2018, with a second held in Washington, D.C., in 2019. Washington is scheduled to host the fourth such meeting next year.

Watts Bar Unit 2. Photo: TVA

The Nuclear Regulatory Commission has approved a request from the Tennessee Valley Authority to increase the generating capacity of Unit 2 at the Watts Bar nuclear power plant by 1.4 percent, according to an October 27 press release from the agency. TVA submitted its application for the power uprate on October 10, 2019, and the NRC issued the required license amendment on October 21.

The power uprate, which TVA intends to implement by mid-December, will increase Unit 2’s generating capacity from approximately 1,223 MWe to 1,240 MWe.

“The NRC staff determined that TVA could safely increase the reactor’s output, primarily through more accurate means of measuring feedwater flow,” the press release stated, adding, “NRC staff also reviewed the TVA evaluations demonstrating that the plant’s design can safely handle the increased power level.”

Rosenergoatom, the electric power division of Russia’s state-owned nuclear power corporation Rosatom, announced on October 23 that Leningrad II-2 has been connected to the grid. The unit is one of two Generation III+ VVER-1200 pressurized water reactors at the Leningrad nuclear plant.

The reactor will replace Leningrad I-2, a 925-MWe RBMK-1000 light-water–cooled graphite-moderated reactor that will permanently cease operation at the end of 2020 after 45 years of service. Fuel loading at Leningrad II-2 began in July, and initial criticality was achieved in August. Following the trial operation, the unit will be shut down for an additional equipment inspection by a state commission before being put into commercial operation early next year, according to Rosenergoatom.

The Advanced Beam Laboratory at Colorado State University will receive funding under the DOE’s LaserNetUS program.

The Department of Energy’s Office of Fusion Energy Sciences (FES) aims to accelerate U.S. research in the field of high-energy-density plasma science with the awarding of $18 million to fund operations and user support at high-intensity laser facilities in the United States and Canada, the DOE announced on October 27.

The award is part of FES’s LaserNetUS initiative, which was established in 2018 to provide U.S. scientists increased access to high-intensity laser facilities at 10 universities and national laboratories: the University of Texas at Austin, Ohio State University, Colorado State University, the University of Michigan, the University of Nebraska–Lincoln, the University of Rochester, SLAC National Accelerator Laboratory, Lawrence Berkeley National Laboratory, Lawrence Livermore National Laboratory, and Canada’s Université du Québec.

Advanced reactor developers see potential markets for reactors in a range of sizes that offer clean, reliable, flexible, and cost-competitive power. Many have reached agreements with suppliers, utilities, and others to support the demonstration and possible deployment of their designs. Nuclear News is following these activities. Read on for updates and check back with Newswire often for more on the Advanced Reactor Marketplace.

Canada has invested Can$20 million in Terrestrial Energy’s 195-MW Integral Molten Salt Reactor through the Ministry of Innovation, Science and Industry, the company announced on October 15. In accepting the investment, Terrestrial Energy, which is based in Oakville, Ontario, has committed to creating and maintaining 186 jobs and creating 52 co-op positions nationally. In addition, Terrestrial Energy is spending at least $91.5 million on research and development. According to the company, the funds will assist with the completion of a key pre-licensing milestone with the Canadian Nuclear Safety Commission.

Two days earlier, Terrestrial Energy USA and Centrus Energy announced that they had signed a memorandum of understanding to evaluate the logistical, regulatory, and transportation requirements to establish a fuel supply for Integral Molten Salt Reactor power plants, which would use standard-assay low-enriched uranium at an enrichment level less than 5 percent.

A “visionary view” of a nuclear thermal propulsion–enabled spacecraft mission. Image: NASA

Secretary of Energy Dan Brouillette and NASA Administrator Jim Bridenstine on October 20 signed a memorandum of understanding to continue decades of partnership between the Department of Energy and NASA and to support the goals of NASA’s Artemis program. These include landing the first woman and the next man on the moon by 2024 and establishing sustainable lunar exploration—using nuclear propulsion systems—by the end of the decade to prepare for the first human mission to Mars.

In testimony filed last week with the Georgia Public Service Commission, Georgia Power and Southern Nuclear acknowledge that the “aggressive” target dates set in July for some of the Vogtle construction project’s upcoming milestones have had to be pushed back by a few months. At the same time, however, the companies continue to express confidence in being able to meet the regulatory-approved commercial start dates for the new reactors—November 2021 for Unit 3 and November 2022 for Unit 4.

The testimony was filed in support of Georgia Power’s Twenty-third Semi-annual Vogtle Construction Monitoring Report, released in August, which covers the period from January 1 to June 30, 2020.

Bulgaria’s Kozloduy nuclear plant. Photo: Wikimedia Commons/Gogo89873

The United States in the past few weeks has signed civil nuclear agreements with Romania and Poland, and now a third European nation can be added to the list: Bulgaria.

Unit 5 at China National Nuclear Corporation’s (CNNC) Fuqing nuclear power plant has achieved initial criticality, becoming the very first Hualong One reactor to reach that milestone, the company announced on October 22. If all goes according to schedule, the unit will enter commercial operation later this year.

Fuel loading for Unit 5 began on September 4, following the issuance of the reactor’s operating license by China’s Ministry of Ecology and Environment. The loading of 177 sets of fuel assemblies was completed on September 10.

Also known as the HPR1000, the Hualong One is a Chinese-designed, 1,000-MWe Generation III pressurized water reactor. Fuqing-5’s twin HPR1000, Fuqing-6, is scheduled to start contributing power to the grid next year.

Located in China’s Fujian Province, Fuqing also houses four 1,000-MWe CPR-1000 PWRs, with commercial start dates of November 2014, October 2015, October 2016, and September 2017.

Bruce Power has harvested a second batch of Co-60 this year. Image: Bruce Power

Bruce Power announced on October 22 that it has completed its second harvest of cobalt-60 this year during an outage of Unit 8 of the Bruce nuclear power plant in Kincardine, Ontario, Canada. The company said that with this latest harvest, it will have provided the world enough of the medical isotope to sterilize 20 billion–25 billion pairs of gloves or COVID-19 swabs.

The Co-60 will be sent to Ottawa-based Nordion for processing and distribution over the next several weeks, according to Bruce Power. From there, the isotope will be shipped around the world for use in gamma irradiation to sterilize medical devices such as single-use gowns, surgical gloves, scalpels, syringes, and other critical health care equipment.

Missouri S&T’s pool-type nuclear reactor. Photo: Sam O’Keefe/Missouri S&T

Sixty years ago, the Missouri University of Science and Technology (Missouri S&T), then known as the University of Missouri at Rolla, was one of the first U.S. institutions to offer a nuclear engineering degree. Now, decades after it was offered as an option within metallurgical engineering, Missouri S&T’s nuclear program has attained new status as the Nuclear Engineering and Radiation Science Department, the university announced on October 20.

The MiFi-DC as portrayed in a video released by Argonne.

Electrifying the nation’s trucking industry could reduce consumption of fossil-based diesel fuel, but it would also pose new challenges. A cross-country 18-wheel truck needs five to 10 times more electricity than an electric car to recharge its battery. Where will that electricity come from?

A team of engineers at Argonne National Laboratory has designed a microreactor called the MiFi-DC (for MicroFission Direct Current) that they say could be mass-produced and installed at highway rest stops to power a future fleet of electric 18-wheelers.

Nuclear News reached out to the MiFi-DC team to learn more. The team, led by Derek Kultgen, a principal engineer at Argonne who also leads the lab’s Mechanisms Engineering Test Loop, responded to questions by email. While they emphasized that much more needs to be done before the MiFi-DC could become a fixture at rest stops across the country, the information the team shared sheds some light on the process of designing a tiny reactor for a specific purpose.

The U.S. International Development Finance Corporation (DFC) has signed a letter of intent to support NuScale Power in the development of 2,500 megawatts of nuclear energy in South Africa, according to an October 16 DFC press release.

Ratliff

Harris

When Floyd Harris began working at Duke Energy’s Brunswick nuclear plant about 24 years ago as a radiation protection technician, robotics and remote monitoring were considered tools for radiation protection and nothing more. Now, teams from across the site, including engineering, maintenance, and operations, rely on the system of robots and cameras Harris is responsible for. “If you want to put those technologies under one umbrella,” says Harris, who now holds the title of nuclear station scientist, “it would be monitoring plant conditions.”

That monitoring is critical to effective plant maintenance. As Plant Manager Jay Ratliff explains, the goal is to “find a problem before it finds us” and ensure safety and reliability. Nuclear News Staff Writer Susan Gallier talked with Ratliff and Harris about how robotics and remote systems are deployed to meet those goals.

At Brunswick, which hosts GE-designed boiling water reactors in Southport, N.C., ingenuity and hard work have produced a novel remote dosimetry turnstile to control access to high-radiation areas, an extensive network to handle data from monitoring cameras, rapid fleetwide access to camera feeds to support collaboration, and new applications for robots and drones.

Palisades: The Covert, Mich., plant reentered commercial operation on October 21 for one last run. Photo: Entergy Nuclear.

Entergy Corporation’s Palisades nuclear power plant returned to service on October 21, following the completion of the Covert, Mich., facility’s final refueling and maintenance outage, which began on August 30.

The company invested more than $86.5 million during the outage, according to Entergy. The plant’s 600 full-time nuclear professionals worked with approximately 800 supplemental workers to replace reactor fuel and to inspect and upgrade hundreds of pipes, pumps, electrical components, and other equipment.

Murkowski

Luria

Sen. Lisa Murkowski (R., Alaska), chairman of the Senate Energy and Natural Resources Committee, and Rep. Elaine Luria (D., Va.), along with 29 of their colleagues, sent a letter last week to the chairmen and ranking members of the House and Senate Armed Services Committees, urging them to include the text of the Nuclear Energy Leadership Act (NELA) in the final fiscal year 2021 National Defense Authorization Act (NDAA).

Murkowski joined Sen. Cory Booker (D., N.J.) and 18 other lawmakers in a similar letter to the Senate Armed Service Committee earlier this year. Murkowski and Booker introduced NELA on September 6, 2018 (NN, Oct. 2018, p. 39).

The House and Senate passed their respective versions of the NDAA in July, by votes of 295–125 and 86–14, respectively. (NELA provisions have been included in the Senate’s NDAA and in the House’s Clean Economy and Jobs Innovation Act.) Last month, speaking at the 2020 Defense News Conference, Rep. Mac Thornberry (R., Texas), ranking member of the House Armed Services Committee, said that the final House and Senate conference report on the NDAA should be coming out soon after the November election.

The Joseph M. Farley nuclear plant, in Columbia, Ala.

The Nuclear Regulatory Commission has approved Southern Nuclear Operating Company’s request to increase the capacity of the two Farley reactors by approximately 1.7 percent. The company applied for the requisite operating license amendments on October 30 of last year. The NRC issued the amendments on October 9.

Located in Columbia, Ala., the Farley plant houses two three-loop Westinghouse pressurized water reactors. Unit 1 was connected to the grid in 1977, and Unit 2 came on line in 1981.

According to an NRC press release on October 21, NRC staff determined that Southern Nuclear could safely increase both reactors’ heat output, primarily through more accurate means of measuring feedwater flow. Southern Nuclear is also improving some plant systems not regulated by the NRC to more efficiently convert the increased reactor output to electricity.

A fissile material handler uses a shielded glovebox to dissolve U-233 into a low-level form so that it can be mixed with grout for safe transportation and disposal. Photo: DOE

The processing and downblending of uranium-233 for disposal has resumed at Oak Ridge National Laboratory, following a pause in operations due to the COVID-19 pandemic, the Department of Energy announced on October 20. Removal and disposition of the U-233 is one of the DOE Office of Environmental Management’s highest priorities at the site, as stated in its strategic vision released earlier this year.

The project is removing a significant risk by eliminating the inventory of highly enriched fissile material stored in Building 3019, the world’s oldest operating nuclear facility, according to the DOE. Employees, known as fissile material handlers, use shielded gloveboxes to dissolve U-233 into a low-level form so that it can be mixed with grout for safe transportation and disposal. The material dates back decades and was originally pursued as a fuel for reactors; however, it did not prove to be a viable option.

Chirica

The Nuclear Energy Institute and the Romanian Atomic Forum (Romatom) have signed a memorandum of understanding for cooperation in civil applications of nuclear energy, according to Romatom on October 14.

The MOU was signed less than a week after the United States and Romania initialed a draft intergovernmental agreement for cooperation on the construction of two additional reactors at Romania’s Cernavoda nuclear power plant and the refurbishment of Unit 1. Cernavoda currently houses two operating reactors—Units 1 and 2, twin 650-MWe CANDU-6 pressurized heavy-water reactors.

Maria Korsnick, NEI’s president and chief executive officer, and Teodor Chirica, Romatom’s honorary president, signed the MOU during a webinar on investment opportunities and the capabilities of the U.S. and Romanian nuclear industries. Also in attendance were Tommy Joyce, the U.S. Department of Energy’s deputy assistant secretary for global energy security and multilateral engagement, and Dan Dragan, secretary of state in the Romanian Ministry of Energy, Economy, and Business Environment.