Comment by closewith
21 hours ago
You are simply wrong on this. HVDC losses total ~5% for 1,000km, including step up and step down losses.
H2 will experience 20-30% over the same distance of natural gas line including compression and friction losses. DOA.
I said expensive. Total cost is the relevant metric, not efficiency.
https://docs.nrel.gov/docs/fy22osti/81662.pdf
It's a common mistake to think efficiency dominates all other metrics. It's never just efficiency.
Capex for H2 pipelines is higher than new HVDC, and opex is 5-10x HVDC per MWh-km so you're just wrong on this.
H2 makes sense for feedstocks but not energy distribution.
The reference I gave you completely disagrees with your statement. So, present a link justifying it or I will just go with the link I have.
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