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Much better than batteries or gravity storage mechanisms is liquid air storage. It is not for small scale sites, but the bigger, the more economical, it becomes
by emanuensis 7y ago
Much better than batteries or gravity storage mechanisms is liquid air storage. It is not for small scale sites, but the bigger, the more economical, it becomes. As an OTS (off the shelf) solution i do not know why it is not used more...
Liquid air storage offers cheapest route to 24 hour wind and solar
https://news.ycombinator.com/item?id=20424313 https://news.ycombinator.com/item?id=20424313
- tim333 7y agoIt's often not very efficient in terms of getting back the energy you put in https://en.wikipedia.org/wiki/Cryogenic_energy_storage#Efficiency https://en.wikipedia.org/wiki/Cryogenic_energy_storage#Effic...
- emanuensis 7y agoGreat review! Yes both the review and the recent article i cited mention the use of hot and/or/both cold sources to boost efficiency. with high grades of both one can approach 100% Even low grade (AKA heat pump type) sources boost well.