Day three of the 2021 Utility Working Conference commenced early Tuesday morning with a plenary session featuring Rita Baranwal, the Electric Power Research Institute’s vice president of nuclear and chief nuclear officer, and Greg Cullen, Energy Northwest’s vice president for energy services and development.

When Utah Associated Municipal Power Systems (UAMPS) in 2015 announced its plan to develop the Carbon Free Power Project (CFPP) using NuScale Power’s modular light water reactor design, it envisioned the construction of a dozen 50-MWe modules for a plant that could produce a total of 600 MWe. The CFPP’s target output later rose to 720 MWe, when UAMPS opted to scale up to 60-MWe modules. In late June, the plans changed once again, as UAMPS participants chose to build 77-MWe modules but downsize the plant from 12 units to six, which would yield 462 MWe—about 64 percent of the 720 MWe that could have been generated from 12 of the 60-MWe modules.

The Nuclear Regulatory Commission is seeking comments on a proposed rule that would certify NuScale Power’s small modular reactor design for use in the United States. Notice of the proposed rule was published in yesterday’s Federal Register.

Wood

As indicated in the April issue of Nuclear News, development of advanced reactor concepts heavily emphasizes small modular reactors and microreactors. Promised features, such as capital cost savings, plant system simplification, implementation flexibility, and favorable operational responsiveness with passive safety behavior, all promote small reactors as desirable, non-­­carbon-­­emitting power sources to help satisfy future energy needs. In spite of the favorable up-­­front economics compared to large nuclear reactors, SMRs and microreactors do not provide the benefit of economy of scale that typically compensates for the high staffing demands associated with traditional, labor-intensive operations and maintenance (O&M) practices in the nuclear industry. To avoid the prospect that high staffing levels relative to unit power production will lead to unsustainable O&M costs for small reactors, a significantly higher degree of automation, to the point of near autonomy, is necessary. Essentially, the economy of automation is needed to offset the loss of economy of scale.

The American Nuclear Society sent a letter this morning to the chairman and the ranking member of the House Foreign Affairs Committee, urging them to oppose any amendments to H.R. 3524, the Ensuring American Global Leadership and Engagement Act, that would disallow U.S. cooperation with China in the field of civil nuclear energy.

The bill, introduced on May 25 by the Foreign Affairs Committee chairman, Rep. Gregory Meeks (D., N.Y.), was scheduled for markup by the committee this afternoon at 1:00 (EDT).

Caputo

The Nuclear Regulatory Commission’s Annie Caputo will depart the agency when her term expires at the end of this month, NRC Chairman Christopher Hanson said yesterday. Her departure will leave the five-seat panel with only three commissioners—the minimum number required for it to conduct business—as former chairman Kristine Svinicki resigned in January of this year.

At this writing, Caputo has not announced her post-NRC plans.

Remaining on the commission are two Democrats, Hanson and Jeff Baran, and one Republican, David Wright. President Biden has not named a replacement for either of the vacancies and can choose only one Democrat, since no more than three commissioners can be from the same political party.

Coolant flow around the fuel pins in a light water reactor core plays a critical role in determining the reactor’s performance. For yet-to-be-built small modular reactors, a thorough understanding of coolant flow will be key to successfully designing, building, and licensing first-of-a-kind reactors.

Operators at the Advanced Test Reactor at Idaho National Laboratory have begun a nine-month outage to perform a core internals changeout. When the ATR is restarted in early 2022, the top head closure plate of the pressurized water test reactor will have new access points that could permit the irradiation of more fuel and material samples in the reactor’s high-flux neutron conditions.

Global First Power’s (GFP) Micro Modular Reactor (MMR) project has moved to the formal license review phase with the Canadian Nuclear Safety Commission (CNSC), becoming the first small modular reactor to do so.

Alberta Premier Jason Kenney has added his signature to a memorandum of understanding on small modular reactor development that was signed in 2019 by the premiers of New Brunswick, Ontario, and Saskatchewan. Kenney signed the document last week at a virtual event that also promoted the release of Feasibility of Small Modular Reactor Development and Deployment in Canada—a study formally requested as part of the MOU.

The health and safety of the public and protecting people from the consequences of a significant release of radioactive material has been a top priority since the early days of the civilian nuclear energy program. After World War II, it was realized that the core inventory of radionuclides is a potential hazard. From this knowledge, emergency planning zones (EPZs) for nuclear power plants were established.

North Carolina State University was finally able to host the ANS Student Conference, April 8 to 10. After the 2020 event was canceled due to the global coronavirus pandemic, the 2021 version is being held virtually for the first time.

The conference's opening session is available for registered attendees to view online.

New research indicates that small modular reactors have the potential to deliver cost-effective emission reductions in Canada’s heavy-industry sector. The research was conducted by consulting firms EnviroEconomics and Navius Research, with support from the Canadian Nuclear Association and the Canadian Nuclear Industry SMR Secretariat, along with the CANDU Owners Group.

Researchers explored a variety of cost and technical assumptions for deploying SMRs. Across all scenarios, SMRs delivered low-cost emission reductions, driving down the cost of getting Canada to net zero by 2050—a stated goal of the Trudeau administration. With deployments set to begin as early as 2026, SMRs could be widespread by 2035 as the demand increases rapidly for reductions in the industrial sector, according to the researchers.

Mary Lou Dunzik-Gougar

Happy spring to you, my nuclear comrades. As I write this column (in early March), I’m glancing out the window at the 10 inches of snow still remaining in my backyard. By the time you read this, the snow may be gone, and spring flowers may be poking out of the earth. Every year, I look forward to gardening season, which is short but fun in Idaho.

Over the past year, unfortunately, many of the things we looked forward to didn’t happen. Hardest hit, of course, were the people who fell ill with COVID-­19 and those who lost jobs. But in the “disappointed” category, our students were especially vulnerable. Elementary school students, who most need face-­to-­face contact with their teachers, were isolated at home. Adolescents and teens had no dances, football games, or lunchtimes with their friends. High school and college seniors couldn’t celebrate graduation. University freshmen, who already cope with significant change and stress, added to their agendas the threat of a global pandemic and the complication of distance learning.

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.”

Artist’s rendering of the Stable Salt Reactor–Wasteburner (SSR–W) and WAste to Stable Salt (WATSS) facility. Image: Moltex

The Canadian government has awarded C$50.5 million (about $40.2 million) to Moltex Energy Canada to support small modular reactor research and technology development in New Brunswick. The investment, announced March 18, was provided by the government’s Strategic Innovation Fund and its Regional Economic Growth Through Innovation program, part of the Atlantic Canada Opportunities Agency (ACOA).

In a press release on the funding, Moltex said it plans to build the world’s first 300-MW Stable Salt Reactor–Wasteburner (SSR–W) and WAste to Stable Salt (WATSS) facility at the Point Lepreau Generating Station site in Saint John, New Brunswick, and provide electricity to the grid by the early 2030s. According to the company, its WATSS process, which recycles existing used nuclear fuel, has the potential to reduce storage needs for that fuel.

Nuclear power could produce as much as one-third of the United Kingdom’s clean hydrogen needs by 2050, posits the Hydrogen Roadmap, a 12-page report recently approved by the Nuclear Industry Council (NIC) and released last week by the Nuclear Industry Association (NIA).

The NIC, co-chaired by the British government’s minister for business, energy, and clean growth, and the chairman of the NIA, sets strategic priorities for government-industry collaboration to promote nuclear power in the United Kingdom.

The road to net zero: The report outlines how large-scale and small modular reactors could produce both the power and the heat necessary to produce emissions-free, or “green,” hydrogen. Existing large-scale reactors, it says, could produce green hydrogen today at scale through electrolysis, as could the next generation of gigawatt-scale reactors. Also, according to the report, SMRs, the first unit of which could be deployed within the next 10 years, could unlock possibilities for green hydrogen production near industrial clusters.

A new survey exploring the attitudes of Canadians toward climate change and their expectations and level of support for government intervention to tackle the issue finds that 86 percent believe that Canada should invest in clean technologies, including renewables and nuclear energy.

The survey, conducted by research and strategy firm Abacus Data between January 29 and February 3, was commissioned by the Canadian Nuclear Association (CNA).

CNA says: “It’s clear there is strong support for the government to implement a mix of solutions to address the [climate change] challenge, including investing in renewables and clean nuclear technologies,” stated John Gorman, CNA president and chief executive officer, in a February 18 press release. “We continue to see that the more understanding Canadians have, the more they support zero-emissions nuclear technologies to help reach our net zero 2050 goal. This includes investment in small modular reactors, which Canadians believe bring value to replace carbon-based fuels with clean electricity, decarbonize high-emissions industries, and transition remote communities away from reliance on diesel.”

Bulgaria’s Kozloduy nuclear plant

Portland, Ore.–based NuScale Power has signed a memorandum of understanding with Kozloduy Nuclear Power Plant–New Build Plc (KNPP-NB) to discuss the possible deployment of NuScale’s small modular reactor technology at Bulgaria’s Kozloduy site. KNPP-NB was established in 2012 to commission new nuclear power capacity at Kozloduy.

Specifics: Under the MOU, NuScale will support KNPP-NB as it analyzes the suitability of NuScale’s SMRs for Kozloduy, located in northwest Bulgaria. The analysis will include the development of a project time line “with milestone deliverables for a feasibility study” and a project-specific cost estimate, as well as engineering, planning, licensing, and other activities, according to a February 17 NuScale press release.

A Montana Senate committee last week passed a joint resolution calling for the creation of a legislative panel to study the feasibility of replacing the coal-fired units at the state’s Colstrip power plant with advanced small modular reactors.

Two of Colstrip’s four coal boilers were permanently closed in January 2020, and most energy-sector observers expect the remaining two units to be retired within the next few years, given coal’s declining prospects in states such as Washington, which has passed legislation banning utilities from using coal power after 2025.

The resolution, known as SJ3, also calls on the panel to evaluate current Montana regulations that need revision in order to enable the construction and operation of advanced nuclear reactors. The study would need to be concluded before September 15, 2022.