Year: 2026

On September 15, 2026, a seminar presented by Dimitrios Tzioutzios from the Norwegian University of Science and Technology (NTNU) was held at Yokohama National University. Faculty members and students from YNU attended the seminar and engaged in active discussions on the challenges of risk management and hydrogen safety.

Titled“Risk Management for Resilient Infrastructure and Hydrogen Systems,” the seminar introduced recent research efforts aimed at improving the safety and resilience of critical infrastructure and emerging hydrogen energy systems. The presentation covered a wide range of topics, including historical dam failure analysis, Natech (Natural Hazard Triggering Technological Disasters) risks in hydrogen pipelines, storm-induced vulnerabilities of liquid hydrogen storage systems, offshore hydrogen and ammonia energy storage safety, and accident analyses of hydrogen refueling stations.

Particular attention was given to hydrogen safety, an increasingly important issue as hydrogen is expected to play a key role in the transition toward a carbon-neutral society. The seminar highlighted how natural hazards such as floods, storms, lightning, and landslides can affect hydrogen infrastructure and discussed advanced methodologies for assessing and mitigating these risks. Recent findings from European research projects on liquid hydrogen storage, hydrogen transportation, and hydrogen refueling stations were also presented.

Dimitrios Tzioutzios is a researcher specializing in Natech risk management, disaster prevention, and hydrogen safety within the NTNU RAMS (Reliability, Availability, Maintainability and Safety) Group. He is involved in several major European and Norwegian hydrogen research initiatives, including projects on hydrogen infrastructure safety, liquid hydrogen storage, and hydrogen education and training. He has authored more than 40 international scientific publications and is actively contributing to the development of safer and more resilient hydrogen technologies.

The seminar provided valuable insights into the latest international research trends in hydrogen safety and risk science and offered an excellent opportunity for participants to exchange ideas on future collaboration between YNU and NTNU. Through our research in safety engineering and risk science, our laboratory will continue its efforts to improve the safety, reliability, and resilience of hydrogen energy systems and other critical infrastructures.

From May 19 to 21, 2026, the first in-person meeting of Phase 2 of the International Energy Agency (IEA) Technology Collaboration Programme (TCP) Hydrogen Task 43 was held in Tokyo, Japan. The meeting brought together 31 experts from academia, industry, and government organizations, including 25 participants attending in person and 6 joining online.

Hosted at Haneda Innovation City “KAWARUBA”, the three-day meeting focused on technical discussions within the various Task 43 subgroups, covering key challenges and opportunities related to hydrogen technologies and safety. Participants exchanged research findings, discussed ongoing activities, and reviewed future directions for international collaboration. An opening message from Japan’s Ministry of Economy, Trade and Industry (METI) highlighted the importance of international cooperation in advancing the safe deployment of hydrogen technologies.

In addition to the technical sessions, participants joined a technical tour of Haneda Innovation City, visited research facilities at the Central Research Institute of Electric Power Industry (CRIEPI) in Yokosuka, and attended a networking reception in Kamakura. These activities provided valuable opportunities for knowledge exchange and strengthened collaboration among researchers and stakeholders from different countries.

Our laboratory contributed to the organization and technical discussions of the meeting and continues to support international efforts to improve the safety and resilience of hydrogen energy systems through research in safety engineering and risk science.

Students Participate in HERCULES Workshop and HySchool 2026 in Oslo, Norway

Doctoral student Eisuke Takano (D3) and master’s student Rena Tajima (M1) from the Shibutani Laboratory, Yokohama National University, participated in the HERCULES Workshop and HySchool 2026 held in Oslo, Norway. The visit provided valuable opportunities to exchange ideas with researchers and students working in the fields of hydrogen energy, safety engineering, and risk assessment.

The HERCULES Workshop was held at Science Park Oslo and brought together researchers and students from several international partner institutions, including the University of Maryland, the University of Toronto, the Norwegian University of Science and Technology (NTNU), and Yokohama National University. During the workshop, participants presented the latest progress in their research projects and discussed future collaborative activities.

As part of the workshop activities, Rena Tajima presented her research on the probabilistic risk assessment of liquefied hydrogen storage tanks and the functional safety assessment of emergency shutdown systems (ESS). Her presentation addressed quantitative approaches for evaluating hydrogen storage safety and discussed the application of fault tree analysis and reliability assessment methods for safety-critical systems.

The students also attended HySchool Days, organized by the Norwegian Research School on Hydrogen and Hydrogen-Based Fuels. The program included lectures and presentations covering a wide range of hydrogen-related topics, including hydrogen production, industrial applications, aviation fuels, and hydrogen safety. The event provided participants with an excellent opportunity to learn about the latest developments in hydrogen technologies and to interact with leading researchers in the field.

A highlight of the program was an industrial excursion to Hystar, a Norwegian company developing high-efficiency electrolyzers for green hydrogen production. Participants were able to gain first-hand insights into industrial-scale hydrogen technologies and discuss current challenges and future opportunities for the hydrogen economy.

Throughout the week, the students engaged with researchers from institutions such as the University of Oslo, the University of Stavanger, NTNU, the Arctic University of Norway, the University of Toronto, and the University of Maryland. These interactions helped strengthen international research networks and opened new possibilities for future collaboration in hydrogen safety and risk science.

The experience provided valuable opportunities not only to present research findings but also to deepen international partnerships and gain broader perspectives on emerging hydrogen technologies. The knowledge and connections obtained during the visit will contribute to the continued advancement of research activities within the Shibutani Laboratory.