A rendering of the six-module Carbon Free Power Project planned for construction in Idaho. (Image: NuScale)
NuScale Power announced October 20 that the Nuclear Regulatory Commission’s Advisory Committee on Reactor Safeguards (ACRS) issued a letter the previous day agreeing with NRC staff’s approval of NuScale’s methodology for determining the plume exposure pathway emergency planning zone (EPZ). As approved, the methodology would permit a smaller EPZ—dependent on site-specific conditions, including seismic hazards—that provides the same level of protection to the public as the 10-mile radius EPZs used for existing U.S. nuclear power plants.
An image from the video “What is High-Assay Low-Enriched Uranium (HALEU)?” released by the DOE in April 2020. (Source: DOE)
Another piece of the plan for meeting the urgent need for high-assay low-enriched uranium (HALEU) to fuel advanced reactor deployments fell into place when the Department of Energy held an Industry Day on October 14. Attendees were asked how soon they could deliver 25 metric tons per year of HALEU enriched in the United States from newly mined uranium. Offtake contracts for six or more years of HALEU production at that rate could be used to stock a DOE-owned HALEU bank to “support [HALEU] availability for civilian domestic research, development, demonstration, and commercial use.”
Government officials and representatives of X-energy and its TRISO-X subsidiary at the October 13 groundbreaking. (Photo: X-energy)
Leaders of X-energy and its TRISO-X subsidiary gathered on October 13 to break ground at the site of what X-energy bills as “North America’s first commercial-scale advanced nuclear fuel facility” in Oak Ridge, Tenn. X-energy expects the TRISO-X Fuel Fabrication Facility (TF3) to create more than 400 jobs and to be commissioned and operational by 2025.
Turkey Point nuclear plant. (Image: FPL)
The Nuclear Regulatory Commission is seeking public comment on the scope of its supplemental environmental impact statement (SEIS) on the subsequent renewed licenses for Turkey Point-3 and -4, twin pressurized water reactors operated by Florida Power & Light (FPL). It’s the second time around for both the NRC and FPL—an SLR environmental scoping process conducted in 2018 already yielded renewed licenses for Turkey Point in December 2019. According to an October 7 NRC press release, “The staff intends to examine the environmental issues the commission determined were not properly evaluated for the subsequent license renewal term, as well as any new information for Turkey Point site–specific issues.”
An artist’s rendering of Hermes. (Image: Kairos Power)
The Nuclear Regulatory Commission issued a draft environmental impact statement (EIS) recently on Kairos Power’s application for a permit to construct Hermes, a 35-MW nonpower version of the company’s fluoride salt–cooled reactor design (KP-FHR), at the East Tennessee Technology Park in Oak Ridge, Tenn.
ANS Standards Committee publishes new standard for light water reactor risk-informed, performance-based design
The new standard ANSI/ANS-30.3-2022, Light Water Reactor Risk-Informed, Performance-Based Design, has just been issued by the American Nuclear Society. Approved by the American National Standards Institute (ANSI) on July 21, 2022, the standard provides requirements for the incorporation of risk-informed, performance-based (RIPB) principles and methods into the nuclear safety design of commercial light water reactors. The process described in this standard establishes a minimum set of process requirements the designer must follow in order to meet the intent of this standard and appropriately combine deterministic, probabilistic, and performance-based methods during design development.
How Kairos Power is applying rapid iterative development to the licensing process as part of its strategy to deliver on cost
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Laufer
Developing a first-of-a-kind reactor is a daunting endeavor. To be successful, advanced reactor designers need to achieve cost certainty by delivering a safe and affordable product at the promised cost. To meet this goal, Kairos Power structured its approach around four key strategies: 1) achieving technology certainty through a rapid iterative approach; 2) achieving construction certainty by demonstrating the ability to build it; 3) achieving licensing certainty by proving Kairos can license it; and 4) achieving supply chain certainty by vertically integrating critical capabilities. By mitigating risk in these four key areas, Kairos Power is confident that it will get true cost certainty for our future products.
The third prong in Kairos’s strategy—achieving licensing certainty—was a key driver in the decision to build the Hermes low-power demonstration reactor, and it remains a major workstream as the company’s construction permit application (CPA) undergoes review by the U.S. Nuclear Regulatory Commission. Licensing a new nuclear technology is no small challenge, and there are multiple approaches companies can take. Here’s a look at how we at Kairos are approaching it.
The Palisades nuclear power plant.
The Nuclear Regulatory Commission has made Holtec International’s post-shutdown decommissioning activities report (PSDAR) for the closed Palisades nuclear power plant available for public comment until December 27. The NRC also plans to hold a public meeting to discuss the report on the evening of September 22 at the South Haven campus of Lake Michigan College, about 10 miles north of the Palisades site in Covert, Mich.
While many Californians are hopeful the state’s last nuclear power reactor can be saved, PG&E is actively preparing for decommissioning.
The Diablo Canyon nuclear power plant in San Luis Obispo County, Calif.
(Photo: Wikimedia Commons)
The reports of the death of the Diablo Canyon nuclear power plant may be greatly exaggerated. While Pacific Gas and Electric (PG&E) announced as early as 2016 that it would be closing California’s last operating nuclear power plant at the end of its current operating license, there has been growing political pressure to keep the plant, and its 2,200 MWe of carbon-free energy, running.