DNV and NGT Collaborate on Pioneering Hydrogen Pipeline Research for UK's Gas Network

(P&GJ) — DNV, the independent energy expert and assurance provider, is the lead partner for National Gas Transmission (NGT) in further expanding a world first hydrogen pipeline research facility FutureGrid.

NGT was awarded two Strategic Innovation Funded (SIF) projects by OFGEM to research the suitability of existing assets to transport hydrogen in the current National Transmission System (NTS) as part of its FutureGrid project.

In 2021, DNV began construction of a high-pressure hydrogen test facility at its Spadeadam Research and Test Facility in Cumbria, Northern England, repurposing existing transmission assets, to demonstrate the NTS could transport hydrogen safely and reliably.

The project, FutureGrid Phase 1, was commissioned in September 2023 and achieved a landmark of operating with 2% hydrogen blended with natural gas. The work continues with the aim of blending 100% hydrogen by the end of January 2024.

FutureGrid Phase 2 - Compression, Deblending and Purification, is part of a strategic initiative for NGT and the first of many steps towards converting the existing NTS to transport hydrogen. For Phase 2, DNV, along with other partners, is supporting NGT by developing a compression and pipeline test facility at Spadeadam. The facility will enable offline testing of the full compression system and provide evidence for a safe and cost-effective transition to hydrogen.

DNV will support NGT in developing a hydrogen de-blending, purification, and re-fueling facility at the site. DNV will be responsible for designing, installing, and operating the infrastructure. The facility will use the existing FutureGrid infrastructure already installed at Spadeadam.

The projects aim to provide the technical evidence gaps and gain a full understanding and knowledge of working with hydrogen, to develop processes and procedures – like those NGT currently have for natural gas – to allow them to run a safe and reliable national hydrogen network.

This project aligns with DNV’s recent research in its 2022 Hydrogen Forecast to 2050 which highlights that cost considerations will lead to more than 50% of hydrogen pipelines globally being repurposed from natural gas pipelines. Repurposing pipelines can offer significant cost savings, with costs in the range of 10-35% of new pipelines.

DNV has also issued a white paper “Repurposing onshore pipelines for hydrogen: Guiding operators through the re-evaluation process” to look at the issue. This study, intended for both industry and regulators, explores current standards and challenges, and presents a new process to assess the safety and feasibility of repurposing natural gas pipelines for hydrogen based on rigorous evaluation.  

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