Steven Arndt
president@ans.org

This will be my last column in Nuclear News as president of the American Nuclear Society. Where has the year gone? For me and for all of us in the nuclear community it has been an exciting and productive 12 months. We have cheered the decision to extend Diablo Canyon operations, witnessed fuel loading and—hopefully by the time the June issue of NN is out—the start of commercial operations of Unit 3 at Vogtle, and seen significant strides forward in the licensing and deployment of small modular reactors. Internationally, we have watched the progress in the deployment of new units in the United Arab Emirates and other countries, as well as renewed commitment to nuclear in countries including Japan, South Korea, India, and the United Kingdom. All of this has been a result of both public and private investment in and commitment to nuclear.

Recently, the Inflation Reduction Act and other government actions in the United States have provided opportunities for increased investment in nuclear energy, including production tax credits and investment tax credits.

A civil nuclear fuel security agreement between the five nuclear leaders of the G7—announced on April 16 on the sidelines of the G7 Ministers’ Meeting on Climate, Energy and Environment in Sapporo, Japan—establishes cooperation between Canada, France, Japan, the United Kingdom, and the United States to flatten Russia’s influence in the global nuclear fuel supply chain.

This year marks the 25th year that ANS's Nuclear News magazine has published its Reference Section, which features a world list of nuclear power plants, maps showing worldwide plant locations, tables with information on U.S. plant renewals, and international data tables and graphics. What follows are interesting tidbits that Nuclear Newswire has picked up from this year's Reference Section, which was published in the March NN.

From the Reference Section
Five power reactors started commercial operations around the world in 2022 and five more closed, leaving the total number of operable nuclear power reactors in this 25th Annual Reference Section at 434, the same as the year before. What’s more, that number is just one more than the 433 power reactors listed in the 1st Annual Reference Section back in 1999. But make no mistake, plenty has changed over 25 years. Read on.

Researchers at Idaho National Laboratory have completed initial testing on a newly developed fuel test capsule that is expected to provide crucial performance data for sodium-cooled fast reactors. The Department of Energy announced on January 12 that the series of fuel testing experiments being carried out now at INL’s Transient Reactor Test Facility (TREAT) was developed through a joint project between the United States and Japan.

As a direct result of the war in Ukraine, several countries have changed their policies on nuclear energy—even those with long-standing nuclear phase-out plans. This February will mark one year since Russia began its invasion of Ukraine, leading to ongoing war and turning pandemic-era energy shortages into a global energy crisis. Spiking gas prices and concerns about electricity supply during the cold winter months have thrown many governments into a frenzy as they try to ease the impact on their citizens.

Countries in the process of phasing out their nuclear power had been prepared to increase their reliance on natural gas. But as Russia supplies 40 percent of the European Union’s natural gas, nations with no reliable alternative now face sky-high energy prices—even energy poverty. Across Europe and beyond, nuclear power plants slated for permanent closure have been given second chances to shore up energy supply. Nuclear power has also claimed a bigger spotlight in countries’ strategies for energy independence.

The U.S.-Japan Nuclear Security Working Group (NSWG) convened for its 11th meeting in early November in Tokyo. The group continued its efforts, begun in 2011, to strengthen global nuclear security and enhance international cooperation in peaceful nuclear activities. The meeting was originally scheduled for 2020 but was postponed because of restrictions related to the COVID-19 pandemic.

The Department of Energy’s National Nuclear Security Administration (NNSA) has signed a memorandum of understanding with Japan’s Ministry of Education, Culture, Sports, Science, and Technology (MEXT). The MOU describes their commitment to convert the Kindai University Teaching and Research Reactor (UTR-KINKI) from high-enriched uranium fuel to low-enriched uranium fuel. The nuclear nonproliferation–related agreement also calls for the secure transport of all the HEU to the United States for either downblending to LEU or disposition.

Kishida

Having already declared last month his government’s intention to return to service as many as nine idled power reactors in order to ensure stable supplies of energy this winter, Japanese prime minister Fumio Kishida yesterday called for additional restarts and endorsed the development and construction of next-generation nuclear plants, according to reports from various news outlets, including Nikkei Asia, the Washington Examiner, and the Los Angeles Times.

Kishida made the comments at the second meeting of Japan’s GX (Green Transformation) Implementation Council, a new group tasked with helping the country achieve carbon neutrality by 2050.

Aboveground atomic bomb test at the Nevada Test Site while troops look on. These clouds of material often wafted over to Utah during the 1950s. (Photo: NNSA)

In 1953, the United States detonated above­ground nuclear weapons during tests at the Nevada Test Site. In 2011, the Fukushima Daiichi meltdown occurred in Japan. Both events spread radioactive material over many miles and over population centers. Neither event resulted in any adverse health effects from that radiation.

But the response to the Fukushima event was disastrous because of the irrational and misinformed fear of radiation. That fear—not radiation—killed at least 1,600 people and destroyed the lives of at least another 200,000. That fear seriously harmed the entire economy of Japan, stopped cold the fishing industry and other agriculture in that area, and, overnight, reversed the country’s progress in addressing climate change.

The U.S. tests spread two to three times more radiation than did the events of Fukushima over the people of Utah, particularly the town of St. George. Like with Fukushima, no one was hurt, there was never any increase in cancer rates, and no one died as a result. But in Utah, the economy and people’s lives were unaffected. Why was there such a different result?

All high-enriched uranium has been removed from the Kyoto University Critical Assembly (KUCA), according to an announcement from the U.S. Department of Energy’s National Nuclear Security Administration.

Natrium, a 345-MWe sodium fast reactor with a molten salt energy storage system, was developed by TerraPower and GE Hitachi Nuclear Energy. TerraPower is planning to build the first Natrium demonstration reactor by 2028 with 50-50 cost-shared funding of about $2 billion from the Department of Energy’s Advanced Reactor Demonstration Program. And for the requisite data and testing of reactor components to support that deployment, TerraPower is looking to Japan—a country with decades of experience developing sodium fast reactor designs and testing infrastructure.

Noting the challenges Japan will face in managing the nuclear waste that will be generated from decommissioning 79 of its nuclear research and development facilities, the International Atomic Energy Agency is recommending that the country prepare for delays in the development of disposal facilities and provide appropriate waste storage capacity for the interim period.

The recommendation was one of several that a team of IAEA experts provided to the Japan Atomic Energy Agency after reviewing the agency’s 70-year decommissioning program, called the “Back-End Roadmap,” and contained in the report, ARTEMIS Review of JAEA Back-End Roadmap, which was released on June 22,

Along with many other media outlets on March 11, the PBS NewsHour reported on the continuing recovery efforts from the earthquake and tsunami that devastated northeastern Japan 10 years ago. The segment, "Japan marks 10th anniversary of Fukushima nuclear disaster," is just over eight minutes long, most of which discusses the effects of the earthquake and tsunami on the region and Japan’s preparedness for the next major natural incident.

The mission of Tokyo Electric Power Company Holdings (TEPCO), and my personal mission, is to safely decommission the damaged Fukushima Daiichi nuclear power station and thereby contribute to the revitalization of Fukushima.

In performing this important work, we are guided by the principle of balancing the recovery of Fukushima with the decommissioning of the Fukushima Daiichi nuclear power station, doing everything possible to mitigate the risks as we progress. Since the accident on March 11, 2011, we have stabilized the site and alleviated many of its crisis aspects.

Most significantly, we have been making efforts to improve the working environment by reducing the contamination on the site due to the accident. About 4,000 workers are currently engaged at Fukushima Daiichi. The average monthly radiation dose for those workers has been reduced from 21.55 mSv (2,155 mrem) immediately following the accident to 0.3 mSv (30 mrem).

Nuclear power is an important component in the fight against climate change, but independent regulation is needed to gain the public’s---and governments'---trust, according to a March 6 article in The Economist, “Nuclear power must be well regulated, not ditched.”

The article reviews the negative effect that the Fukushima Daiichi accident had on the worldwide nuclear industry following the earthquake and tsunami in March 2011. Japan’s direct economic cost, estimated at more than $200 billion, was larger than that of any other natural disaster the world has seen, according to the article.

China will have the world's largest nuclear power fleet within a decade, an International Energy Agency official noted during a session at the High-Level Workshop on Nuclear Power in Clean Energy Transitions, World Nuclear News reported on March 3.

The workshop was held jointly by the IEA and the International Atomic Energy Agency.

The IEA official, Brent Wanner, head of Power Sector Modelling & Analysis for the agency's World Energy Outlook publication, said that as nuclear fleets in the United States, Canada, and Japan reach their original design lifetimes, decisions will have to be made about what will happen after that. Absent license renewals, the contribution of nuclear power could decline substantially in those countries while China’s reactor building program will boost it into the first position.

The accident at Japan's Fukushima Daiichi nuclear power plant on March 11, 2011, has sparked many safety improvements in the nuclear industry over the past decade. Lessons from the accident and its aftermath will influence firms and regulators as they consider the future design, construction, operation and decommissioning of nuclear reactors.

An American Nuclear Society webinar, “Nuclear News Presents: A Look Back at the Fukushima Daiichi Accident,” held yesterday was attended by more than 1,550 viewers and generated about 150 questions to the panelists. The attendance was the largest ever for an ANS webinar.

The panelists were Mike Corradini, emeritus professor, University of Wisconsin; Dale Klein, former chairman of the U.S. Nuclear Regulatory Commission; Joy Rempe, principal, Rempe and Assoc. LLC; Lake Barrett, senior advisor, Tokyo Electric Power Company and Japan’s International Research Institute for Nuclear Decommissioning (IRID); and Paul Dickman, senior policy fellow, Argonne National Laboratory.

The webinar’s recording and slides are available here, along with an e-version of the March issue of Nuclear News, which features a cover story on the Fukushima Daiichi accident.

The Fukushima Daiichi site before the accident. All images are provided courtesy of TEPCO unless noted otherwise.

It was a rather normal day back on March 11, 2011, at the Fukushima Daiichi nuclear plant before 2:45 p.m. That was the time when the Great Tohoku Earthquake struck, followed by a massive tsunami that caused three reactor meltdowns and forever changed the nuclear power industry in Japan and worldwide. Now, 10 years later, much has been learned and done to improve nuclear safety, and despite many challenges, significant progress is being made to decontaminate and defuel the extensively damaged Fukushima Daiichi reactor site. This is a summary of what happened, progress to date, current situation, and the outlook for the future there.

Screenshot of the video from Vice.

Vice News has published a video on YouTube that follows two farmers from the Fukushima Prefecture, Noboru Saito and Koji Furuyama. Saito, who grows many different crops on his farm, says that the rice grown in the area is consistently rated as the best. Furuyama specializes in peaches and explains his strategy to deal with the stigma of selling fruit from Fukushima: grow the best peaches in the world.

The LongOps project will develop innovative robotic technologies. Photo: UKAEA

Britain and Japan have signed a research and technology deployment collaboration to help automate nuclear decommissioning and aspects of fusion energy production. According to the U.K. government, which announced the deal on January 20, the £12 million (about $16.5 million) U.K.–Japanese robotics project, called LongOps, will support the delivery of faster and safer decommissioning at the Fukushima Daiichi reactors in Japan and at Sellafield in the United Kingdom, using long-reach robotic arms.

The four-year collaboration on new robotics and automation techniques will also be applied to fusion energy research in the two countries.

Funded equally by U.K. Research and Innovation, the U.K.’s Nuclear Decommissioning Authority, and Japan’s Tokyo Electric Power Company, the LongOps project will be led by the U.K. Atomic Energy Authority’s (UKAEA) Remote Applications in Challenging Environments (RACE) facility.