Many stakeholders are considering the use of hydrogen in the natural gas grid as a way of supporting the decarbonization of the energy system. Yet, there are no guidelines for TSOs and DSOs on how to proceed to the injection of hydrogen on their natural gas transmission and distribution networks and the impact this will have.
The HYREADY project was thus launched with the intention of providing to gas systems operators with engineering guidelines, so their networks are ready to accept hydrogen-natural gas mixtures.
This project is supported by GERG and HIPS-NET. It focuses on:
- The consequences of adding H2 to natural gas in an existing specific network (impact of hydrogen addition to integrity, performance, economic losses, maintenance, repair, safety and compliance with international standards).
- Feasible counter measures to mitigate these consequences.
These guidelines help systems operators to calculate the acceptable percentage of hydrogen that can be added to a gas network and provides descriptions of measures to take in case an upgrade of the network is necessary.
The project distinguishes between the following levels:
- Grid level: It sets the extent to which the system functionality is affected.
- Component level: It shows the extent to which the performance, maintenance, repair and safety are affected.
- Location level: It indicates the level to which the installation requirements are affected by hydrogen addition.
Hyready consists of 22 project partners led jointly by Norwegian technical consultancy DNV, and German gas company DBI-GUT.
Additional details can be found in the report listed below.