Authors

C. Eder, M. Eiböck, A. Gaugl, T. Stepan, SAG New Technologies GmbH, Lend

Year

2026

Print Info

Production/Publication ÖVK

Summary

Since 2020, SAG New Technologies has been developing liquid hydrogen (LH₂) storage systems for heavy-duty vehicles and other applications that benefit from the high volumetric and gravimetric energy density of LH₂. The introduction of liquid hydrogen as an energy carrier represents not only a technological innovation but also requires a fundamental reassessment of established validation and homologation processes.

Existing test standards and approval frameworks, largely developed for conventional powertrain technologies such as diesel vehicles, are only partially applicable to cryogenic hydrogen storage systems. This contribution discusses the specific challenges faced by an LH₂ system supplier in achieving equivalent safety validation and in realizing a type-approved LH₂ tank system for road use.

The presentation places particular emphasis on safety-relevant test procedures that address both regulatory requirements and the expectations of OEMs and the public. Owing to the novelty of LH₂ technology, validated operational experience remains limited in several areas, shifting a significant responsibility to manufacturers to demonstrate safe operation under real-world conditions. Practical insights into applied methodologies, test strategies, and key lessons learned from the development and validation of LH₂ storage systems are presented.

ISBN

978-3-9504969-5-6

DOI

https://doi.org/10.62626/zqxg-hkx9 Copy link

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