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by xxpor 1729 days ago
We should probably prefer pumped hydro before stored h2.
1 comments
chess_buster 1729 days ago
Molten Salts powering the old coal plants in a closed system.
link
pfdietz 1728 days ago
Hot sand looks even better (much higher storage temperature):

https://arpa-e.energy.gov/sites/default/files/2021-03/07%20D...

link