I've made this point before, but we will need to use the existing natural gas system if hydrogen and other green gases are to become a part of the clean energy future. Therefore, we need to continue to invest to modernize our natural gas infrastructure.https://www.axios.com/hydrogen-support-growing-5ee4cfbb-ee83-4494-8561-c172467b7e5e.html …
But, given that hydrogen has 3x lower energy per volume than methane, won't it be necessary to increase pipeline gas pressure by 3 times in order to delivery the same number of BTU's? And, won't we need to adjust every regulator to allow higher gas flow? Sounds very expensive...
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Europe's gas industry put out a plan for H2 that involves a lot of reuse and some new build. I don't think there's a better alternative to H2 storage for seasonal balancing so I assume this is the most likely path forward.https://gasforclimate2050.eu/news-item/gas-infrastructure-companies-present-a-european-hydrogen-backbone-plan/ …
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Yes, but those modifications could be mandated over a long period. Wouldn't cost much extra as you're upgrading anyway. Perhaps aim to make complete switch by 2035. Phase into 20% before this is very doable.
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We're already spending billions every year to replace leak-prone pipe given current pressures. If we need to increase pressure, we'll need to replace even more *before* we can do the increase. Also, you can't add much hydrogen until after changing all regulators. Very expensive!
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