Watching a webinar on the Dutch hydrogen backbone: Hyway27. Govt budget 2022 has funding for it. streamxpert.nl/hyway27webinar…
Modeled hydrogen flows in 2030 over the backbone infrastructure in the Netherlands, with the planned 3-4 GW of electrolyzer capacity, in PJ/year.
10 PJ = 2.8 TWh = 8,000 tonnes of hydrogen.
The idea is to use existing gas pipelines, becoming available as the Groningen gas field has to ramp down production.
The repurposing costs are estimated at just €0.4 million per km (cleaning, preparing, valve replacement) vs over €3 million for a new pipeline.
That's for 36-inch pipelines (diameter 0.9 meters), without transport compression. These 2030 flows won't need that, assuming that the hydrogen is put into the pipeline at sufficient pressure. For higher capacities, hydrogen compressors will add substantial cost.
The Dutch Ministry of Economy and Climate has asked (state-owned) gas TSO @Gasunie to develop this Hyway27 backbone, for the reasons below:
@Gasunie Gasunie's subsidiary HyNetwork Services has done a survey. Potential producers of hydrogen in the Netherlands have much higher expectations of volume by 2030 (100 TWh) than future users (20 TWh). Discrepancy still high for 2035 as well.
The results of this market consultation are available on its website: hynetwork.nl/nieuws/wensen-…
Roll-out plan for the Dutch Hydrogen Backbone:
First pipelines to be converted in 2023-2025
Substantial parts ready by 2028
Completed by 2030
The backbone will be open access, non-discriminatory. Actual market demand for hydrogen transport will determine the roll-out.
Pressure in the network will be 50 bar entry, 30 bar exit.
Purity at least 98%.
Current state of development:
HyNetwork Services is gathering Expressions of Interest from future hydrogen network users.
Services to start in cluster Rotterdam (2024), followed by North-NL (2025), Amsterdam and Zeeland (2026).
Question on safety of transporting hydrogen.
Answer: We thoroughly looked into this. Requires similar measures as for transporting natural gas, with some modifications. No showstoppers.
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