top | item 47113103 (no title) closewith | 7 days 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. discuss order hn newest pfdietz|7 days ago I said expensive. Total cost is the relevant metric, not efficiency.https://docs.nrel.gov/docs/fy22osti/81662.pdfIt's a common mistake to think efficiency dominates all other metrics. It's never just efficiency. closewith|7 days ago 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. load replies (1)
pfdietz|7 days ago I said expensive. Total cost is the relevant metric, not efficiency.https://docs.nrel.gov/docs/fy22osti/81662.pdfIt's a common mistake to think efficiency dominates all other metrics. It's never just efficiency. closewith|7 days ago 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. load replies (1)
closewith|7 days ago 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. load replies (1)
pfdietz|7 days ago
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.
closewith|7 days ago
H2 makes sense for feedstocks but not energy distribution.