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, Regulatory gap

Assessment Severity

Questions:

Question 1 Is there any legislation with regard to safety requirements related to end-user equipment (e.g.: limits in terms of H2 for use in gas appliances)? If yes, please answer the following question.

See SNG group. H2 is not allowed to be injected in the network purely. Under the Article 54 from Law 34/1998, hydrogen is allowed to be injected only with SNG.

National legislation:

Law 34/1998, of 7 October, of the hydrocarbons sector.
In title IV "Management of the supply of combustible gases by pipeline" is explained the gas grid system and its regulation processes.”
Resolution of 22 of September of 2011, of the Directorate General of Energy Policy and mines, by which modifies the protocol of detail PD–01 «Measurement» of the norms of technical management of the gas system.
Admissible hydrogen concentrations in natural gas systems
Scientific study regarding the injections of hydrogen into the natural gas grid, and how it affects to the different equipments.