f EUSE Hydrogen Purity - Contaminants Impact Materials in Domestic Installations

The EUSE hydrogen purity project is investigating the impact of contaminants in a .pipeline network that has been repurposed from natural gas to hydrogen. With the focus on end users, the impact of the contaminants on the pipework and appliance materials downstream of the Emergency Control Valve (ECV) to the appliance is considered, and in addition the impact on the combustion of the hydrogen with the contaminants present.
DNV carried out a review, using its own experience, together with information from IGEM standards and information collated as part of the BEIS Hy4Heat programme to identify the most abundant material types that are present in domestic installations. This data was supplemented by information from Cadent on the surveys that were undertaken as part of the Whitby Village trial.
This report was submitted to HSE for their assessment of the safety evidence for 100% hydrogen heating, which can be found at Hydrogen heating: HSE assessment of the safety evidence - GOV.UK.
Queries should be directed to DESNZ: https://www.gov.uk/guidance/contact-desnz.