• BigFig
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    17 months ago

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

      • @Grimy@lemmy.world
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        7 months 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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          117 months 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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          47 months ago

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

        • BigFig
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          27 months 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.

    • Chloë (she/her)
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      47 months ago

      huh i hadn’t heard of this one? I went to a dam last year and that’s what the guide told us…

      • bobburger
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        47 months 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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          27 months 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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      17 months 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.