In order to assess these options, ACER reviewed more than 20 studies focusing on the technical and the cost aspects of repurposing existing gas infrastructure to pure hydrogen. The analysed studies range across various sources and stakeholders, including the gas industry, multi-partner hydrogen initiatives, industry partnerships, academia, think tanks, and others. As a result, ACER developed a summary paper on the technical possibilities for repurposing, based on these available studies. The paper also offers a reflection on the technical and hydrogen market conditions that could trigger the repurposing of natural gas pipelines to pure hydrogen.
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