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2009

NTS Pipeline Assessments Phase 2

Abstract

This project will build upon previous work to inform decisions relating to the repurposing of National Transmission System pipelines for 100% hydrogen and hydrogen-natural gas blends. New input data will be generated and collated, the assessment methodology will be refined and an alternative assessment method, probabilistic, will be utilised and the resulting network impact will be considered.

This project will generate the following benefits:

  • More accurate assessment of the capability of the NTS to transport 100% hydrogen and hydrogen-natural gas blends.
  • Data on the impact of low percentage blend hydrogen on pipeline materials.
  • Standardised document for Engineering Critical Assessments (ECA) of hydrogen and hydrogen-natural gas blend pipelines and pipework.

Greater understanding on the effect of hydrogen on the design and operation of pipeline systems.

The project will generate data on the impact of high-pressure hydrogen on the operation of the National Transmission System (NTS). This data will then be used to inform the safety case submission as well as the wider blending programme within the UK and the development of the 100% hydrogen backbone (Project Union)

These results might be informative to other transmission networks globally as well as domestic and international gas distribution networks. Where appropriate, results will be disseminated via meetings, committees and conferences.

file format pdf download NIA_NGT0244_NTS_Materials_Pipeline_Assessment.pdf
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2025-05-01
2025-06-11
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