The EBR-II sodium fast reactor at Idaho National Laboratory began operations in 1964 and generated electricity for decades. Soon it will serve as a National Reactor Innovation Center test bed for future advanced reactor demonstrations. (Source: ANL)
At the box office or streaming at home, it’s fear, not truth, that sells. The laws of physics are swept aside, apocalypse is inevitable, and superpowered heroes wait until the last possible second to save the universe. It can make for great entertainment, but in the real world we need to stick with science over science fiction and be wowed by engineering, not special effects.
The truth is, science and innovation are incredible in their own right. From communications and machine learning to space travel and medical advances, technology is evolving in hyperdrive to solve real problems. With climate change and global warming here on earth, we don’t have to go looking for trouble in a galaxy far, far away.
A rendering of Ultra Safe Nuclear Corporation’s micro modular reactor as proposed for construction on the University of Illinois at Urbana-Champaign campus. (Graphic: USNC)
A bipartisan group of legislators has introduced a bill to invest in university nuclear science and engineering infrastructure, establish regional consortia to promote collaboration with industry and national laboratories, and support the development of advanced reactor technology. The National Nuclear University Research Infrastructure Reinvestment Act of 2021 (H.R. 4819) was introduced in the House of Representatives by Reps. Anthony Gonzalez (R., Ohio), Sean Casten (D., Ill.), Peter Meijer (R., Mich.), and Bill Foster (D., Ill).
Artistic rendering of the Hermes low-power demonstration reactor. (Image: Kairos Power)
Today, Tennessee governor Bill Lee joined Department of Economic and Community Development commissioner Bob Rolfe and Kairos Power officials in Nashville, Tenn., to celebrate Kairos’s plans to construct a low-power demonstration reactor in the East Tennessee Technology Park in Oak Ridge, Tenn. The company first announced its plans to redevelop the former K-33 gaseous diffusion plant site at the Heritage Center, a former Department of Energy site complex, in December 2020.
This image shows the individual pins in a full-core nuclear reactor simulation. (Image: ANL)
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.
The MARVEL reactor concept with Stirling engines. (Image: DOE)
A future TerraPower plant visualization. (Graphic: TerraPower)
TerraPower has a design for a sodium-cooled fast reactor and federal cost-shared demonstration funding from the Department of Energy. Its partner, PacifiCorp, has four operating coal-fired power plants in the state of Wyoming. On June 2, together with Wyoming Gov. Mark Gordon and others, the companies announced plans to site a Natrium reactor demonstration project at a retiring coal plant in Wyoming, with a specific site to be announced by the end of 2021.
May 21, 2021, 2:41PMNuclear NewsCharles Forsberg and Eric Ingersoll TerraPower and GE Hitachi Nuclear Energy jointly developed the sodium-cooled Natrium reactor with the turbine hall, nitrate heat storage tanks, and cooling towers separated from the reactor at the back of the site.
The viability of nuclear power ultimately depends on economics. Safety is a requirement, but it does not determine whether a reactor will be deployed. The most economical reactor maximizes revenue while minimizing costs. The lowest-cost reactor is not necessarily the most economical reactor. Different markets impose different requirements on reactors. If the capital cost of Reactor A is 50 percent more than Reactor B but has characteristics that double the revenue, the most economical reactor is Reactor A.
The most important factor is an efficient supply chain, including on-site construction practices. This is the basis for the low capital cost of light water reactors from China and South Korea. The design of the reactor can significantly affect capital cost through its impact on the supply chain. The question is, how can advanced reactors boost revenue and reduce costs?
This figure, included in the ONWARDS funding opportunity announcement, shows how ARPA-E R&D programs address different stages of advanced reactor development. (Figure: ARPA-E)
The Department of Energy has announced up to $40 million in funding for a new Advanced Research Projects Agency-Energy (ARPA-E) program to conduct research and development into technologies for reprocessing and ultimately disposing of used nuclear fuel. The program, “Optimizing Nuclear Waste and Advanced Reactor Disposal Systems” (ONWARDS), announced on May 19, targets both open (once-through) and closed (reprocessing) fuel cycles to reduce the amount of waste produced from advanced reactors tenfold when compared to light water reactors.
The demonstration program aims to accelerate innovation and deployment of energy concepts at the intersection of industry needs, NRIC’s mission, and the R&D portfolio of CTD IES. (Graphic: BEA)
The National Reactor Innovation Center (NRIC) wants to hear from developers and end users interested in integrated energy systems for advanced reactors. Battelle Energy Alliance (BEA), the managing and operating contractor for Idaho National Laboratory, has issued a call for Expressions of Interest for a potential multi-phase demonstration program for innovative uses of nuclear energy, to be carried out by NRIC and the Crosscutting Technology Development Integrated Energy Systems (CTD IES) program. The final date for responses is May 21.