[ editorial ]
Dear readers,
As summer settles in, we are still energised by the momentum and sense of community that marked last month’ s Hydrogen Tech World Conference in Düsseldorf. From packed presentations to informal networking opportunities, the event convened key players from industry, research, and technology development for two days of in-depth discussion, lively exchange, and actionable knowledge sharing. If you were among those in attendance: thank you. A brief retrospect is available on pages 28 – 29 of this issue.
This final issue of Hydrogen Tech World magazine captures that same spirit. Our cover story features PRUSS, a specialist valve manufacturer with a long-standing presence in gas-fired power generation and a growing role in the hydrogen economy. With projects spanning the globe, the company now delivers hydrogen-ready valve packages for large-scale power plants preparing for a hydrogen future. The article highlights how PRUSS is contributing to this global transition through product innovation, engineering expertise, and a pragmatic approach to sustainability.
We also present five technical contributions that showcase the depth and diversity of hydrogenrelated innovation. XINTC outlines a modular approach to directly coupling solar PV with electrolysers, eliminating the need for power electronics and enabling more efficient off-grid green hydrogen production. A case study by a Polish consortium of industry and research partners presents the results of the VETNI project, which successfully integrated a solid oxide electrolyser into a working refinery – a milestone for SOE deployment in Europe.
Stephen B. Harrison explores whether the oxygen generated as a by-product of hydrogen electrolysis could be recovered and used in medical settings. With the potential to support costeffective patient care, the article considers the technical feasibility, regulatory requirements, and purity standards involved in positioning electrolytic oxygen for medicinal use in Europe.
Continuing on the theme of optimising electrolyser performance, an article from TEADIT examines sealing challenges in these systems. The piece compares skived, structured, and expanded PTFE gaskets, showing how thoughtful material selection can reduce fugitive emissions and extend service life under challenging electrolyser conditions.
With this 22nd issue, Hydrogen Tech World magazine concludes its publication run. The decision to close this chapter was not taken lightly, but it allows us to focus our efforts where we see the most impact. It has been a joy, an honour, and a privilege to be at the centre of this vibrant community over the past three and a half years. To all our contributors and readers – thank you for your engagement, your trust, and your support.
The Hydrogen Tech World brand lives on – through our website, newsletter, LinkedIn community, and annual conference. We look forward to continuing the conversation across these platforms.
With heartfelt thanks and best wishes,
Matjaž Matošec
Editor-in-Chief
Hydrogen Tech World | Issue 22 | June 2025 3