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> Hydrogen is one of several ways to store energy and if we nail cheap & clean mass production, it becomes a very useful source of energy for all sorts of thing
by Hypx 7y ago
> Hydrogen is one of several ways to store energy and if we nail cheap & clean mass production, it becomes a very useful source of energy for all sorts of things.
If we’re talking about long-term storage, hydrogen is nearly the only option available. Alternatives would be ideas like synfuels or ammonia (which both use H2 as a feedstock). You need the high energy densities of chemical fuels for this purpose. Something that other ideas, like pumped hydro or compress air, sorely lack.
- solarkraft 7y agoWhat is "long term storage"? Why would you store energy for longer than it would need for the grid to provide appropriate capacity again? On a grid level (that usually means: very large), how are H2 or chemical solutions better than simply pumping water up a hill?
- Hypx 7y agoThis article might be of use: https://www.researchgate.net/publication/48693439_Large-Scale_Hydrogen_Underground_Storage_for_Securing_Future_Energy_Supplies https://www.researchgate.net/publication/48693439_Large-Scal... Long term means weeks to months of storage. This deals mainly with large season shifts in energy availability. Other ideas only really make sense for hours or days worth of storage. The need for this type of energy storage is well beyond what is plausible with pumping water or compressed air.