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Kees van der Leun

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17 Oct, 11 tweets, 4 min read

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.

@Gasunie

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 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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Kees van der Leun

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Current extremely high natural gas price in the Netherlands drives boom in anything that lowers consumption: hybrid heat pumps, insulation works, DIY materials. The right response! nos.nl/l/2402036

The best part of reducing your gas demand in times of scarcity is that every m³ saves reduces the price of the remaining m³, by cooling the market.

Somehow, you'd expect govt to be more vocal on the importance of energy conservation now, especially after just announcing a €3 billion handout to compensate everyone for the high energy prices.

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Good point that we don’t have a plan yet for net-zero emissions from the Netherlands by 2050. Would be a good basis for exploring net-zero by 2040 too. Things will change in the meantime (solutions can also get cheaper than expected), but it’s good to know what it looks like.

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Materials extracted and used globally, now two times the sustainable threshold. "Virtually all of this overshoot is being driven by excess consumption in high-income nations."
@jasonhickel in Less is More

That's 12 tonnes of material per year per person, and no doubt very unevenly distributed. A tonne of stuff on your doorstep for each person in your household, every month. More if you live in a rich country. Whoa.

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