Comment by pfdietz
1 day ago
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.
1 day ago
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.
The PDF you shared actually agrees with my point if you care you to read it. It models the cost for a specific HVDC implementation, but the HVDC line selected is more expensive when transporting just 3% of the energy of the pipeline.
The same capex and opex can support 100x more Wh-km via HVDC, making HVDC at least an order of magnitude cheaper then the H2 pipeline.
What's interesting to me is that this is completely uncontroversial and incontrovertible, so I wonder where your insistence otherwise is?
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