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Network Innovation Allowance (NIA) Projects
Hydrogen technical and safety case for domestic heat During 2023, we led the project to review the Safety and Technical evidence for its completeness against the HSE considerations and identifying any remaining gaps in evidence. The outputs included a view of the completeness and current position of the evidence gathered to date, along with projections of the position after the current projects are delivered. The project delivered a complete plan to both the HSE and DEZNZ, as to how all the evidence would be delivered through the projects underway. The plan gave them confidence that that the comprehensive formal assessment due in September 2024 can be efficiently and effectively conducted.” The stage 2 of this project has been taken forward by SGN.
Great Britain hydrogen distribution QRA
This project is aiming to quantify the risk profile of the UK gas users if they swapped to hydrogen. The study uses mature risk modelling techniques and applies the vast amount of knowledge and evidence being generated as part of the hydrogen technical and safety case projects. The project’s outputs will be submitted alongside the evidence being submitted to the HSE for their formal assessment later this year.
Blending We have continued to champion the role of hydrogen as a blend into our gas networks, as we believe it will have a positive impact in reducing the carbon emissions from domestic heating, without the need to make significant changes to infrastructure. In late 2023, the UK Government set out their ‘minded to position’ on blending hydrogen into our gas networks. The policy decision whilst favourable, is subject to blending being safe, which will be determined by the HSE upon reviewing the evidence that has been generated from our HyDeploy2 project. HyDeploy2 is a project we have delivered in conjunction with Northern Gas Networks, where we have completed trials on both private and public
networks to determine how the pipe and component materials performed and how the residents found the experience. The project received positive support locally. The project team have spent 23/24 exploring the impact of hydrogen blends on industrial and commercial customers’ heating appliances and developing the resultant evidence for submission to the HSE for their formal assessment. The project team have subsequently submitted the conclusive evidence to the HSE and will now seek to respond to any queries. Hydeploy 2 is a project we have delivered in conjunction with Northern Gas Networks, under the former National Innovation Competition funding.
Winlaton blending site at NGN’s site.
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