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2009

IGEM TD1 / TD13 Hydrogen Supplements Review

  • Status: Live
  • Reference: NIA2_SGN0088
  • Lead Network: SGN
  • Start Date: 01 November 2025
  • End Date: 01 January 2027
  • Budget: £299,227
  • Funding Mechanism: Network Innovation Allowance
  • Collaborating Networks: Cadent, National Gas Transmission PLC, Northern Gas Networks, SGN, Wales & West Utilities
  • Project Partners: Both elements of the project will be carried out by Pipeline Integrity Engineers (PIE) Ltd who were involved in the development of the original hydrogen supplements. The outputs will be developed by a key panel of experts from PIE with a strategic review and challenge process carried out by an independent group of industry experts, identified and separately funded via IGEM. This will be a collaboration between all GDNs and National Gas Transmission, with IGEM providing external funding.

Abstract

IGEM have received requests from operators to update the hydrogen TD1 / TD13 supplements to take account of outputs from research projects. The project will review and assess the updates required based on findings from completed hydrogen research projects. This will support the repurposing of existing pipelines and installations from Natural Gas to hydrogen and Natural Gas/hydrogen blends, with input and support from users/stakeholders and formal approval by IGEM.

The project will also develop a methodology for fracture and fatigue assessments for existing Natural Gas pipelines to be repurposed to hydrogen service. This methodology will assess the impact of blends of hydrogen up to and including 100% hydrogen to determine whether pipeline derating and/or deblending is required. The requirements for the application of this specification should be included in the updates to the IGEM/TD/1 and IGEM/TD/13 hydrogen supplements.

This project will develop a new specification for fracture and fatigue assessment of high pressure hydrogen pipelines, and advise on the updates needed for TD1 / TD13 hydrogen supplements following new research. The updates of these IGEM supplements will standardise new best practice across the industry.
file format pdf download Project_Document_Loader_Template_v5_TD1_TD13_H2_Supplements_Review.pdf
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