• BigFig@lemmy.world
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    1 month ago

    Hydrogen and Methane Power-to-gas can store more power for longer than hydro pump

      • Grimy@lemmy.world
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        1 month ago

        The downvotes are because almost all of the global hydrogen production is made either with natural gas, as a byproduct of oil drilling or through coal.

        In its current state, it is a fake green product pushed by the oil industry to hamper the transition.

        • PrincessLeiasCat@sh.itjust.works
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          1 month ago

          Ah - that makes sense, thank you. You’re correct, but I work in the aerospace industry with hydrogen fuel cells and green hydrogen is all I’m familiar with, but I realize now that this was bias on my part.

        • catloaf@lemm.ee
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          1 month ago

          Is hydrolysis not cost-effective? If we have excess electricity, as in this case, can we not use that to get hydrogen?

        • BigFig@lemmy.world
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          1 month ago

          On the recent lemmy topic of using up votes and down votes incorrectly.

          Literally just stating a verifiable fact, not in support or against the technology, and I get down voted lol.

      • bobburger@fedia.io
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        1 month ago

        I think it’s the physical size of the reservoir that is the limiting factor. You can’t reasonable expand most reservoirs, but it’s relatively easy to create new hydrogen/methane storage tanks.

        • sunbeam60@lemmy.one
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          1 month ago

          Yes but pumped storage is about 80% round trip efficiency vs power to x which is barely touching 20% out of the lab. And power to X needs an epic fuckton of very clean water, which also isn’t easy to find.

    • sunbeam60@lemmy.one
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      1 month ago

      At huge inefficiency loss though. Denmark is probably further with this than anywhere else in the world and even they are sputtering on getting this going.