Overview of Holtec's SMR-160

April 5, 2021, 9:30AMANS Nuclear CafeJodine Jansen Vehec
Fig. 1: The layout of a typical SMR-160 site.

Holtec International’s SMR-160 is a pressurized light-water thermal spectrum reactor that relies on natural circulation, thereby eliminating the need for reactor coolant pumps during normal operation. The reference design incorporates a lower pressure conventional steam turbine and wet cooling via a tube-and-shell condenser coupled with forced-draft cooling towers. Optionally, the plant can use dry cooling via Holtec’s HI-KOOL air-cooled condenser.

Niger’s Akouta uranium mine ceases operations

April 5, 2021, 7:00AMNuclear News
Miners depart Niger’s Akouta uranium mine for the last time after production ended for good. Photo: Cominak

The Akouta mine in Niger stopped production on March 31 after 43 years of service and 75,000 metric tons of uranium extracted. Akouta, the largest underground uranium mine in the world, was operated by Cominak, a subsidiary of Orano. The shutdown was decided by Cominak’s board of directors on October 23, 2019, in response to the depletion of the mine’s deposit.

Post-Fukushima safety enhancements

April 2, 2021, 2:47PMNuclear NewsLeah Parks, Carl Mazzola, Jim Xu, and Brent Gutierrez
A map of Japan highlighting the Fukushima prefecture.

March 11 will mark the 10-­year anniversary of the Fukushima Daiichi event, when a 45-­foot tsunami, caused by the 9.0-­magnitude Great Tohoku Earthquake, significantly damaged the reactors at Japan’s Fukushima Daiichi nuclear power plant. In response to this event, the U.S. Nuclear Regulatory Commission took actions to evaluate and mitigate beyond-­design-­basis events, including a new requirement for the staging of so-­called Flex equipment, as well as changes to containment venting and improvements to emergency preparedness. The U.S. Department of Energy also addressed beyond-­design-­basis events in its documented safety analyses.

Hanford’s new wastewater filter system to increase efficiency, lower costs

April 2, 2021, 11:59AMRadwaste Solutions
A front-and-back illustration of the new Hanford ETF filter system, which is intended to eliminate the need to shut down operations every 12 hours to replace filters during wastewater processing. Image: DOE

A new wastewater filter system being installed at Hanford’s Effluent Treatment Facility (ETF) is expected to increase waste processing throughput, improve efficiency, and save money as the site in southeastern Washington gears up to treat tank waste, the Department of Energy announced.

Sparks from Los Alamos waste drum prompt WIPP evacuation

April 2, 2021, 6:56AMRadwaste Solutions

The Waste Isolation Pilot Plant's underground repository in New Mexico was evacuated for 13 days in March following an incident at Los Alamos National Laboratory, where a drum being packed with transuranic waste began emitting sparks.

As reported on March 31 by the Carlsbad Current Argus, an evacuation order was given on March 5 after WIPP was informed by the National Nuclear Security Administration that similar at-risk drums from LANL were emplaced for disposal in the repository. The order was lifted on March 18 after it was determined that the drums were compliant with WIPP’s waste acceptance criteria and did not pose a risk.

Partnership supports siting Xe-100 demo in Washington state

April 1, 2021, 3:00PMNuclear News
U.S. Rep. Dan Newhouse (R., Wash.) observes as (from left) Energy Northwest CEO Brad Sawatzke, X-energy CEO Clay Sell, and Grant PUD CEO Kevin Nordt sign the TRi Energy Partnership MOU on April 1 at the Port of Benton in Richland, Wash. Photo: Energy Northwest

Building the nation’s first advanced reactor is the goal of a partnership formed between X-energy, Energy Northwest, and the Grant County (Washington) Public Utility District (PUD).

The TRi Energy Partnership will support the development and demonstration of X-energy’s Xe-100 high-temperature gas reactor, which was selected by the Department of Energy for a cost-shared commercial demonstration by 2027 through the DOE’s Advanced Reactor Demonstration Program (ARDP). The new partnership was announced on April 1, when Clay Sell, X-energy’s chief executive officer; Brad Sawatzke, Energy Northwest’s CEO; and Kevin Nordt, the Grant County PUD’s CEO, met in Richland, Wash., to sign a memorandum of understanding.

Biden administration releases plan to build back U.S. infrastructure

April 1, 2021, 12:03PMEdited April 2, 2021, 6:09AMANS Nuclear Cafe

Biden

President Biden introduced a $2 trillion American Jobs Plan on Wednesday to overhaul and upgrade the nation’s infrastructure as part of his “Build Back Better” campaign pledge. His plan is ambitious: “It is not a plan that tinkers around the edges,” Biden said. “It is a once-in-a-generation investment in America.”

According to Axios, the policy would be “the most far-reaching federal investment to date in programs that would help curb greenhouse gas emissions. But it faces serious challenges in the closely divided Congress.”

NCSU to host SMR technical library with support from endowment

April 1, 2021, 9:32AMNuclear News

The North Carolina State University (NCSU) Libraries Department and the Department of Nuclear Engineering are collaborating to build a small modular reactor technical library at NCSU. The library resources will be available to the NCSU research community and to TerraPower/GE Hitachi and X-energy, both of which have signed teaming agreements with NCSU researchers to support planned advanced reactor demonstrations within the next seven years.

Making the new library collection possible: a generous donation from NCSU alumnus Stephen Rea, who together with his wife, Phyllis, formed the Stephen and Phyllis Rea Endowment for Mechanical Engineering Collections in 2015.

“We wanted to seed the endowment and grow it through donations to pursue research and development of green advanced power generation technologies,” Rea explained. “Supporting the advancement of SMR technology development fits our mission statement perfectly.”

OPG and Moltex join forces on recycled fuel project

April 1, 2021, 6:58AMNuclear News

Ontario Power Generation’s Centre for Canadian Nuclear Sustainability (CCNS) will collaborate with nuclear technology firm Moltex Energy on a project aimed at recycling used fuel from CANDU reactors, the electricity generator announced March 30.

The CCNS will provide C$1 million (about $800,000) in funding to assist Moltex in demonstrating the technical viability of its process to recycle used CANDU fuel. That process, known as WAste to Stable Salt (WATSS), has the potential to reduce storage needs for used fuel, according to Moltex.

LANL cleanup modifies fieldwork to protect threatened species

March 31, 2021, 3:01PMRadwaste Solutions
The Mexican spotted owl, which finds a home in northern New Mexico’s canyons and forests, is a threatened species that the DOE strives to protect. Photo: Don Ulrich, taken in Flagstaff, Ariz.

To protect a treasured ecological species of northern New Mexico, the Los Alamos Field Office (EM-LA) of the Department of Energy’s Office of Environmental Management and its contractor N3B this month began their annual task of modifying legacy waste cleanup activities at Los Alamos National Laboratory ahead of the Mexican spotted owl breeding season.

The U.S. Fish and Wildlife Service (USFWS) listed the owl as a threatened species in 1993, when population numbers were decreasing drastically due to the loss, degradation, and fragmentation of their habitat.

Ohio bill repealing nuclear subsidies signed by governor

March 31, 2021, 12:03PMNuclear News

The final nail in the coffin of Ohio’s nuclear subsidies occurred on March 31 when Gov. Mike DeWine signed H.B. 128, a bill passed unanimously by the state’s Senate last Thursday.

Approved 86-7 by the Ohio House on March 10, H.B. 128 strips the nuclear subsidy provisions from H.B. 6, the controversial and, since last July, scandal-scarred piece of legislation signed into law in 2019 to aid Ohio’s economically challenged nuclear facilities, Davis-Besse and Perry.

H.B. 128 also removes the earlier bill’s “decoupling” provision, which would have been of substantial financial benefit to FirstEnergy Corporation, the former parent company of Energy Harbor, owner and operator of Davis-Besse and Perry. The new bill retains H.B. 6’s subsidies for utility-scale solar projects, however, and for two coal plants (one in Ohio, one in Indiana).

H.B. 128 was sponsored by Reps. James Hoops (R., 81st Dist.) and Dick Stein (R., 57th Dist.).

ORNL taps ANS Fellow Icenhour as deputy for operations

March 31, 2021, 12:01PMANS Nuclear Cafe

Icenhour

Alan S. Icenhour, an ANS member since 2002 and a Fellow, has been named deputy for operations at the Department of Energy’s Oak Ridge National Laboratory. He succeeds Jeff Smith, who is retiring this spring after serving in the role since UT-Battelle began operating the lab in 2000.

Background: Icenhour joined ORNL in 1990 as an engineer and served most recently as associate laboratory director for the Isotope Science and Engineering Directorate. He led the Nuclear Science and Engineering Directorate from 2014 until the isotopes directorate was formed in October 2020, and he has held a variety of other leadership positions as well as an assignment as senior technical adviser to the National Nuclear Security Administration.

New Mexico sues NRC over used fuel storage site licensing

March 31, 2021, 9:31AMRadwaste Solutions
Holtec’s proposed HI-STORE interim storage facility. Image: Holtec

New Mexico attorney general Hector Balderas has filed suit against the Nuclear Regulatory Commission and the United States, seeking to stop Holtec International’s application to build and operate its HI-STORE consolidated interim storage facility for used nuclear fuel in the state. The complaint, filed in the U.S. District Court of New Mexico on March 29, seeks a declaratory judgment that the NRC is acting beyond the scope of its authority and an injunction preventing the licensing from moving forward.

Bill to preserve Illinois nuclear fleet debuts

March 31, 2021, 5:00AMNuclear News
Exelon's Byron Nuclear Generating Station.

A group of Illinois lawmakers joined Joe Duffy, executive director of the labor coalition Climate Jobs Illinois (CJI), at a virtual news conference on March 29 to unveil a union-focused, clean energy legislative proposal that includes help for the state’s struggling nuclear power plants.

Past DOE Nuclear Energy officials hold panel discussion for ANS

March 30, 2021, 3:00PMANS News

Five former assistant secretaries of energy for the Office of Nuclear Energy—a position given the designation “NE-1”—gathered for a virtual panel discussion hosted by the American Nuclear Society on March 26. Rita Baranwal, John Kotek, Peter Lyons, William D. Magwood, and Warren “Pete” Miller each participated in the free event that was moderated by Benjamin Reinke, the former executive director in the secretary of energy’s Office of Strategic Planning and Policy.

NRC pushes back safety review of Holtec’s interim storage site

March 30, 2021, 12:00PMRadwaste Solutions

The Nuclear Regulatory Commission has delayed the release of a safety report for Holtec International’s HI-STORE consolidated interim storage facility proposed for New Mexico, claiming it needs additional information to complete its review of the license application. The NRC previously said it would complete its safety review and publish a safety evaluation report for the spent fuel storage facility by May.

Canada on track to select repository site by 2023, NWMO says

March 30, 2021, 9:30AMRadwaste Solutions

Despite the challenges of the past year, Canada is on track to select a deep geologic repository site for the country’s used nuclear fuel by 2023, the Nuclear Waste Management Organization said in its annual report to the Canadian government. In conformance with Canada’s Nuclear Fuel Waste Act, the report, Guided by science. Grounded in knowledge. Committed to partnership, was submitted to Natural Resources Minister Seamus O’Regan on March 25.

Leaked report says EU can tag nuclear investments as sustainable

March 30, 2021, 6:57AMNuclear News

Within the European Union, recognizing nuclear energy as green, sustainable, and worthy of investment depends on nuclear being added to the EU taxonomy of “sustainable investments that have been found to ‘do no significant harm’ to human health and to the environment.” The EU will issue a final taxonomy this year, and a decision to include nuclear power—which was excluded from a draft released in late 2020—could raise prospects for public and private nuclear investments both inside and outside the EU.

The decision rests with the European Commission (EC), which will take into consideration expert opinions, including those in a scientific report of the EC’s Joint Research Centre (JRC) that was requested last summer. The JRC's 387-page report, Technical assessment of nuclear energy with respect to the ‘do no significant harm’ criteria of Regulation (EU) 2020/852 (‘Taxonomy Regulation’), was leaked to the media and made available online on March 26. The report supports adding nuclear to the taxonomy.

NC State celebrates 70 years of nuclear engineering education

March 29, 2021, 3:00PMANS News
An early picture of the research reactor building on the North Carolina State University campus. The Department of Nuclear Engineering is celebrating the 70th anniversary of its nuclear engineering curriculum in 2020–2021. Photo: North Carolina State University

The Department of Nuclear Engineering at North Carolina State University has spent the 2020–2021 academic year celebrating the 70th anniversary of its becoming the first U.S. university to establish a nuclear engineering curriculum. It started in 1950, when Clifford Beck, then of Oak Ridge, Tenn., obtained support from NC State’s dean of engineering, Harold Lampe, to build the nation’s first university nuclear reactor and, in conjunction, establish an educational curriculum dedicated to nuclear engineering.

The department, host to the 2021 ANS Virtual Student Conference, scheduled for April 8–10, now features 23 tenure/tenure-track faculty and three research faculty members. “What a journey for the first nuclear engineering curriculum in the nation,” said Kostadin Ivanov, professor and department head.

Safe operation of Catawba, McGuire, and Oconee plants subject of NRC virtual meeting

March 29, 2021, 9:31AMNuclear News

The Nuclear Regulatory Commission will discuss the 2020 safety performance of Duke Energy’s Catawba, McGuire, and Oconee nuclear power plants during a virtual meeting to be held on April 1.

The meeting will begin at 5 p.m., eastern time, with a presentation by the NRC staff responsible for plant inspections. Following the discussion with Duke Energy, questions will be answered by the NRC, including by the resident inspectors.

The public and media can access the meeting via Teams. For those without access to Teams, the telephone conference number is 301-576-2978, passcode 71391471#.

The annual assessment letters for the Catawba plant, the McGuire plant, and the Oconee plant, which include upcoming inspection plans for the plants, are available on the NRC website.

Current performance information for Catawba-1, Catawba-2, McGuire-1, McGuire-2, Oconee-1, Oconee-2, and Oconee-3 is available and updated quarterly.