Safety requirements related to the end-user equipment

This LAP is concerned with the safety requirements (and design and operational aspects) for commercial and domestic end-user equipment operating with hydrogen gas blends resulting from hydrogen injected and transmitted in the gas grid at the TSO level

Glossary:

The requirements needed to guarantee the safety of the end user application.

select country:

Is it a barrier?

Yes

Type of Barrier

Structural barriers, Operational barriers, Economic barriers, Regulatory gap

Assessment Severity

Questions:

Question 2 Changes to gas supply composition may have implications for the design of gas appliances (safety) and the relevant legislation. What are the implications you expect with regard to the possible concentrations of hydrogen in the H2NG blend?

A lot of research is already carried out in several projects on the effect of hydrogen enriched natural gas on the current appliances.

Question 3 For which end user applications do you foresee the main consequences and at which level? Could you please provide references to underpin your opinion?

The various experts don’t have a common view on the effect of a certain level of hydrogen on the current end user appliances. However, for some applications based on the certifications of materials used, it is possible to give an exact number. For example for CNG tanks in cars.

Question 4 Changes to gas supply composition may have implications for CNG compression, storage, and use in CNG vehicles. What are the additional safety precautions needed? Could you please provide references to underpin your opinion

No information available.

Describe the comparable technology and its relevance with regard to hydrogen

Injection of biogas to natural gas grid.