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Harmonisation of hydrogen gas trailers


The following specific issues should be addressed by the project:

  • Identify and quantify the risks associated with compressed hydrogen delivery on a large scale, taking into account the whole chain from filling of trucks at a terminal, driving from supplier to customer and delivery of hydrogen at a retail station or other customers;
  • Propose mitigation actions for the most critical risks;
  • Provide a roadmap for standardisation of compressed hydrogen trucks and interfaces between the truck and the supply and customer sites that balance safety aspects with commercial, environmental and feasibility aspects. This includes a strategy for effective influence on:
    • ISO TC 58/SC3 Gas Cylinders Design;
    • WG 35 Refillable permanently mounted composite tubes for transportation: ISO 17519 CD;
    • WG 32 Refillable composite reinforced tubes of water capacity between 450 L and 3000 L – Design, construction and testing: ISO 11515;
    • WG 27 Gas cylinders of composite construction: ISO 11119-X;
    • ADR - Dangerous Goods Transport.
  • Develop a position paper that, considering actually available European Regulations on max pressure and max quantity of hydrogen transported all over Europe, can propose a modification and derogation proposal to the ARD [2].

To address the issues basic experimentation or simulations may be required, for example to determine optimal flow rates and to optimise ways of equipment handling.

It is expected that the conclusions and results of the project are made public.

Any safety-related event that may occur during execution of the project shall be reported to the European Commission's Joint Research Centre (JRC), which manages the European hydrogen safety reference database, HIAD (dedicated mailbox

The FCH 2 JU considers that proposals requesting a contribution from the EU of EUR 0.5 million would allow this specific challenge to be addressed appropriately. Nonetheless, this does not preclude submission and selection of proposals requesting other amounts.

A maximum of 1 project may be funded under this topic.

Expected duration: 3 years

[2] ARD (ADR): European agreement on the international carriage of dangerous goods on road

Compressed gas truck distribution will initially be the most common way to transport hydrogen from central production sites to consuming facilities. Significant introduction of hydrogen vehicles requires a scale up of two orders of magnitude hydrogen truck distribution. At the same time developing and deploying a high volume trailer is necessary to address both the H2 Mobility market but also the industrial market to increase the volume transported so as to decrease transportation cost and CO2 emissions in a context of increasing fuel cost; to increase customer autonomy and storage footprint and to reduce the HRS investments and ease the ramp up of first stations [1].

Current standards, regulations and safety codes have been developed for a relatively small market volume and deliveries mostly to industrial sites. These standards need to be reviewed, and adapted if needed, to ensure safe, efficient and low-cost hydrogen delivery at larger scales and in residential areas. These regulations and standards need to be harmonised across Europe.

[1] From DeliverHy – Recommendations to Industry (

The following impacts are expected as a result of the PNR activities:

  • Deeper knowledge of the risks associated with compressed hydrogen delivery on a large scale and the mitigation actions for the most critical risks, ensuring that risks related to distribution during the hydrogen market development phase are minimised;
  • Harmonization of hydrogen distribution with high pressure trucks in the current standards, regulations and safety codes, making possible by the end of the project the distribution of hydrogen with high pressure trucks in Europe with the same framework or regulation in all member states
  • The project shall provide evidences of the reduced cost in the hydrogen value chain due to increased standardisation.