This article is the first in a series that will examine the history of small modular reactors.

Small and medium reactors have been an integral part of the U.S. nuclear power enterprise since the early days of the industry. Many of the designs for the next generation of reactors are rooted in the designs of the 1950s and ’60s, but the development and push for deployment have gained momentum only within the last decade.

This recent momentum led a reader of Nuclear News to suggest an article reviewing the history of small modular reactors. NN staff jumped on this idea, deciding a series of articles would do better justice to such a complex and interesting topic.

NuScale announced today a 28 percent reduction in full-time staff, affecting 154 workers, as part of the company’s move to focus resources on “key strategic areas”— including deployment of its small modular reactor.

A recent event co-organized by the Nuclear Energy Agency, the Electric Power Research Institute, and Holtec International brought together about 100 international experts for a workshop on spent fuel and radioactive waste.

Small modular reactor developer ARC Clean Technology, Canadian utility New Brunswick Power, and nuclear plant operator Korea Hydro & Nuclear Power have signed a memorandum of understanding to explore opportunities for commercializing ARC technology in Canada, South Korea, and the United States, as well as in other regions where KHNP has business operations.

Ken Petersen
president@ans.org

This September, I was fortunate to be in Vienna as a delegate to the 67th International Atomic Energy Agency’s General Conference. I will admit, it was strange at first to be in another country while listening to the U.S. Departments of State, Energy, and Commerce all discuss the positive aspects of nuclear and its international influence, but it was a great experience, especially hearing firsthand the enthusiasm of the secretary of energy.

Delegations from Ghana and the Philippines provided an excellent perspective from countries new to nuclear and embracing it. The Philippines’ representative spoke of the many islands that currently depend on diesel generators to provide power, and the need to replace them. A microreactor would be able to replace the generators and provide clean energy for decades. He also talked about how his country had to ship raw metal ore to China for smelting, and how a larger nuclear plant provides the power to smelt their own ore, improving their market. The Ghanian delegation spoke of their interest in nuclear power and small modular reactor technology and how they believe SMRs will provide their industries with safe, reliable power.

Energy secretary Jennifer Granholm visited the Clinch River Nuclear Site in Oak Ridge, Tenn., on December 5 to highlight the Biden administration’s support for the Tennessee Valley Authority’s advanced nuclear technology program.

Granholm indicated that the administration is willing to provide funding for the nation’s first commercial small modular reactor at the site. “Excited to see a shovel in the ground, hopefully in a few more years,” she said. “TVA is leading on small modular reactors with this site. Everybody’s looking to TVA to make sure that this can actually happen.”

On the margins of the COP28 climate conference in Dubai, UAE, this week, Barakah nuclear plant owner Emirates Nuclear Energy Corporation (ENEC) signed its first commercial uranium fuel supply contract with Kazatomprom, in addition to memorandums of understanding with two U.S.-based advanced reactor developers—TerraPower and GE Hitachi Nuclear Energy (GEH).

At the World Nuclear Exhibition in Paris this week, Ontario Power Generation announced contracts with Canadian, French, and U.S. companies to ensure a fuel supply for the first of four GE Hitachi Nuclear Energy BWRX-300 small modular reactors planned for deployment at OPG’s Darlington nuclear power plant.

Westinghouse Electric Company and Ontario Power Generation have signed a memorandum of understanding establishing a framework to identify potential areas of cooperation for the deployment of nuclear technologies in Canada, the companies jointly announced this morning. (While based in Cranberry Township, Pa., Westinghouse is owned by Canadian firms Brookfield Asset Management and Cameco.)

Dustin Duncan, Saskatchewan’s minister responsible for SaskPower (from left), and Todd Smith, Ontario’s minister of energy, at the master services agreement announcement in Regina, Saskatchewan. (Photo: OPG)

Ontario Power Generation and its Laurentis Energy Partners (LEP) subsidiary have announced details of a master services agreement with SaskPower to further Saskatchewan’s plans for small modular reactor deployment.

The agreement, announced on November 20, runs for up to five years and serves as a foundation for a long-term strategic partnership to streamline SMR development in the province. LEP is tasked in the agreement with program management, licensing, and operational readiness activities.

The Nuclear Regulatory Commission has issued a final rule and associated regulatory guide applying risk-informed, performance-based emergency preparedness (EP) requirements to small modular reactors and other new technologies (ONT).

In response to Ontario’s ambitious nuclear development plans—including the plan by Ontario Power Generation to construct four small modular reactors at its Darlington nuclear site—Celeros Flow Technology has committed to expanding its Burlington, Ontario, facility to make it the first Ontario-based manufacturer of nuclear-qualified pumps, OPG announced last week.

Halden, Norway, known in nuclear circles for its long-running (1958–2018) research reactor, is partnering with Norsk Kjernekraft (aka Norwegian Nuclear Power) and Østfold Energi, a hydro, wind, and heat energy provider, to explore the idea of siting a small modular reactor plant in the municipality, located in southeastern Norway, near the border with Sweden.

The European Commission intends to establish early next year an industrial alliance focused on small modular reactors, EC energy commissioner Kadri Simson announced last week.

ULC-Energy, a nuclear development and consultancy company based in the Netherlands, has signed a memorandum of intent with Danish carbon emission reduction technology firm Topsoe and Britain’s Rolls-Royce SMR to investigate the production of hydrogen using Topsoe’s solid oxide electrolysis cell (SOEC) technology and electricity and heat from a Rolls-Royce small modular reactor plant.

A team of experts from the International Atomic Energy Agency recently concluded an eight-day mission to Estonia, finding that the Baltic state has developed a comprehensive assessment of its nuclear infrastructure development needs, enabling the government to make an informed decision on whether to pursue a nuclear power program.

This past January, Wilmington, N.C.–based GE Hitachi Nuclear Energy and Canadian firms Ontario Power Generation, SNC-Lavalin, and Aecon signed a contract for the deployment of the American firm’s BWRX-300 small modular reactor at OPG’s Darlington nuclear plant in Clarington, Ontario.

Standard Power, a provider of infrastructure as a service to advanced data processing companies, has chosen NuScale Power as the technology provider for its plans to develop two small modular reactor–powered facilities in Ohio and Pennsylvania to run nearby data centers, the Portland, Ore.-based SMR developer announced on October 3.

Holtec International has taken another step on the arduous stairway to Palisades resurrection, announcing last Friday that it has filed with the Nuclear Regulatory Commission to “formally begin the process of seeking federal reauthorization of power operations” at the Covert Township, Mich., facility.