From the pages of the September 2023 issue of Nuclear News.
But nuclear fuel—unlike coal, oil, or even natural uranium—is a feat of engineering, not a commodity extracted from the earth. Now, “more” means more engineering—to boost uranium density or to close the fuel cycle.
W. A. “Art” Wharton III
Multiple market forces on nuclear fuel have arisen seemingly at the same time since the Russian war in Ukraine started. Accident tolerant fuels (ATF), lead test rods, and lead test assemblies have had their first shot in real operating conditions, in recent cycles. But the popularity of their so-called accident tolerance has nothing to do with accidents, since any practical nuclear professional knows that the safety of nuclear energy is already higher than that of any other electricity generation source. The popularity comes down to fuel performance. Are we on the cusp of a revolution in nuclear fuel performance under the guise of accident tolerance?
American Nuclear Society Executive Director/CEO Craig Piercy visited One White Flint North, where he sat down with U.S. Nuclear Regulatory Commission chair Christopher Hanson for a one-on-one interview on September 18, 2023. The interview is available exclusively to ANS members to watch this week before it is released to the public. ANS members won’t want to miss the hour-long discussion, where Hanson opens up about important topics facing the NRC and the nuclear community and what he sees as the big successes during his first term as chair.
Framatome’s Protect EATF assembly. (Photo: Framatome)
The nuclear industry’s first 100 percent accident tolerant fuel assembly has successfully completed its initial cycle of operation at a U.S. nuclear power plant, Framatome announced earlier this week.
Following 24 months of operation at Constellation Energy’s two-unit Calvert Cliffs nuclear power plant in Lusby, Md., testing and inspections confirm that Framatome’s lead Enhanced Accident Tolerant Fuel (EATF) assembly safely withstood in-reactor conditions and performed as designed, according to the French-based company.
"The accelerated delivery and proven performance of our technology reflects the dedication and expertise of our people with the collaborative support from the industry,” said Lionel Gaiffe, senior executive vice president of Framatome’s fuel business unit. “Collectively, we are one step closer in the qualification of our Protect EATF technology for the nuclear industry. With the adoption and implementation of our enhanced technologies, our industry partners continue to demonstrate their commitment to enhance the safety and performance of their reliable, low-carbon, energy operations.”
While President Biden’s $6.9 trillion budget proposal for fiscal year 2024, submitted to Congress on March 9, was quickly pronounced “dead on arrival” by Sen. John Barrasso (R., Wyo.), it remains valuable as an indicator of the administration’s funding priorities for the coming year, including its nuclear energy priorities.
Which is why ANS on Wednesday hosted “An Inside Look at the FY 2024 Budget,” a members-only webinar moderated by ANS Executive Director/CEO Craig Piercy and featuring a team from the Department of Energy’s Office of Nuclear Energy, including DOE-NE head Kathryn Huff.
Westinghouse Electric Company announced on March 14 that the Nuclear Regulatory Commission has approved the use of the company’s Advanced Doped Pellet Technology (ADOPT) fuel pellets in U.S. pressurized water reactors. That approval brings the company closer to loading lead test assemblies containing ADOPT accident tolerant fuel pellets in Unit 2 of Southern Nuclear’s Vogtle plant.
In a 68–29 vote on Thursday, the Senate approved the fiscal year 2023 omnibus bill—a $1.7 trillion spending package intended to fund the federal government through next September. The bill is now with the House, where it is expected to pass, averting the unhappy prospect of a partial government shutdown over the holidays.
Labeled H.R. 2617, the 4,155-page measure includes $858 billion for defense, a 10 percent jump from the FY2022 enacted level, and $772.5 billion for non-defense discretionary programs, an increase of 5.5 percent.
Framatome has completed the second 18-month cycle of its GAIA Protect Enhanced Accident Tolerant Fuel (EATF) technology at Vogtle’s Unit 2 in Waynesboro, Ga. Inspections afterward revealed that the full-length chromium-coated fuel rods maintained their original characteristics, while the chromia-enhanced pellets operated as designed during 36 months of reactor operation.
The Nuclear Regulatory Commission last Friday announced the publication of its ninth report to the Convention on Nuclear Safety, describing the federal government’s actions under the convention to achieve and maintain safety for the nation’s nuclear power reactor fleet.
An International Atomic Energy Agency treaty, the Convention on Nuclear Safety was adopted in 1994 and entered into force in 1996. In 1999, it was ratified by the U.S. Senate.
The aim of the convention, according to the IAEA, is to “commit contracting parties operating land-based civil nuclear power plants to maintain a high level of safety by establishing fundamental safety principles to which states would subscribe.” Signatories are required to submit reports for peer review at meetings held every three years.
A team from the Department of Energy’s Office of Nuclear Energy joined ANS Executive Director/Chief Executive Officer Craig Piercy on April 27 for an ANS members–only online event to discuss the Biden administration’s fiscal year 2023 NE budget proposal. The proposed total for the office, $1.675 billion, is more than a $20 million increase from the FY 2022 enacted level of $1.654 billion.
After months of negotiations, the House passed a fiscal year 2022 omnibus spending package late Wednesday—the same day that congressional appropriators from both chambers unveiled the long-awaited measure.
Labeled H.R. 2471, the 2,741-page, $1.5 trillion package includes all 12 of the standard annual appropriations bills, providing $730 billion for nondefense programs, a $46 billion (6.7 percent) jump from FY 2021, and $782 billion for defense programs, a $42 billion (5.6 percent) boost. (The bill also includes $13.6 billion to address the ongoing crisis in Ukraine.)
The House also approved, by voice vote, a stopgap bill to extend government funding to March 15 to give the Senate time to review the omnibus bill and send it to the president’s desk for his signature. At this writing, funding for the federal government runs out tomorrow.
Westinghouse Electric Company and Southern Nuclear have agreed to a plan to install four Westinghouse lead test assemblies in Vogtle-2, a 1,169-MWe pressurized water reactor located in Waynesboro, Ga. Four lead test assemblies containing uranium enriched up to 6 percent U-235 will be loaded in Vogtle-2 in 2023, marking the first time that fuel rods with uranium enriched above 5 percent U-235 are put in use in a U.S. commercial power reactor.
France and other pronuclear European Union members appear to be winning the argument with their antinuclear neighbors—Germany, most prominently—regarding whether to add nuclear energy to the EU taxonomy, the classification system used to direct investments toward environmentally sustainable economic projects.
On January 1, the European Commission released a 60-page draft proposal that includes nuclear and natural gas in the taxonomy. Also, in a related press release, the EC said that it has begun consultations with EU members “on a draft text of a Taxonomy Complementary Delegated Act covering certain gas and nuclear activities.”
The nuclear industry’s first 100 percent accident tolerant fuel assembly is in operation at Exelon Generation’s Calvert Cliffs plant, the Department of Energy announced yesterday. The advanced fuel will operate in the reactor for the next four to six years and will be routinely inspected to monitor its performance, the DOE said.
Located in Lusby, Md., Calvert Cliffs houses two pressurized water reactors. Unit 1 is rated at 907 Mwe, and Unit 2 at 881 Mwe.
Several lead test rods of Westinghouse’s EnCore accident tolerant fuel recently arrived at Oak Ridge National Laboratory for post-irradiation examination over the next year in support of the Nuclear Regulatory Commission’s licensing process. The rods were installed in 2019 in Exelon’s Byron-2, a 1,158-MWe pressurized water reactor, and were removed in fall 2020 and prepared for shipment to ORNL.
The House Committee on Appropriations last week approved an Energy and Water Development funding bill for fiscal year 2022 that provides an 11 percent increase for the Department of Energy’s Office of Nuclear Energy.
Reported favorably out of committee on July 16 via a party-line vote of 33 to 24, the House bill sports a total price tag of $53.2 billion, an increase of $1.5 billion from the FY 2021 enacted level. (The committee’s official report on appropriations for the next fiscal year can be found here.)
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.
To nuclear fuel suppliers, today’s operating reactors represent a defined customer base with predictable demands. Utilities must order their next fuel reload far in advance of an outage; enrichers and fabricators work to fill those orders. Adapting such a highly optimized supply chain to accommodate new products—fuels with new materials, claddings, and higher enrichments and burnups—will require alignment between all parties involved to meet the associated research, enrichment, manufacturing, regulatory, transportation, and operating experience needs.
That was the consensus during “Current Accident Tolerant Fuel Environment,” a technical session held on March 9 during the Nuclear Regulatory Commission's four-day Regulatory Information Conference (RIC, March 8-11). The session was chaired by NRC Chairman Christopher Hanson, who was taking part in his first RIC as a member of the commission.
The Nuclear Regulatory Commission has opened registration for its annual Regulatory Information Conference (RIC), the largest public meeting the agency hosts. Scheduled for March 8–11, the 33rd RIC will be an all-virtual event.
The full conference program and registration information can be accessed from the RIC Web page.
Details: In addition to remarks from the NRC commissioners and the executive director of operations, RIC 2021 will feature two special plenary sessions, including one in recognition of the 10th anniversary of the Fukushima Daiichi accident, and 28 technical sessions covering a wide range of topics, such as advanced reactors, accident tolerant fuel, artificial intelligence, cybersecurity, microreactors, and risk-informed decision making.
The $111.2 million in financial assistance awarded by the Department of Energy in late 2018 to nuclear fuel developers Framatome, General Electric, and Westinghouse for the development of accident tolerant fuel has yielded some encouraging results.
Framatome reports that the first 18-month fuel cycle test of its GAIA Enhanced Accident Tolerant Fuel (EATF) technology, conducted at Southern Nuclear’s Vogtle-2, has “demonstrated expected results and excellent performance.”
And last month, Westinghouse announced that the topical report on its Advanced Doped Pellet Technology fuel has been accepted for review by the Nuclear Regulatory Commission, calling the decision “a major achievement for the advanced fuel portfolio Westinghouse is developing.”