Pretty sure they are everywhere This list is missing the one I know about - https://en.wikipedia.org/wiki/List_of_pumped-storage_hydroelectric_power_stations

Pretty sure they are everywhere This list is missing the one I know about - https://en.wikipedia.org/wiki/List_of_pumped-storage_hydroelectric_power_stations https://en.wikipedia.org/wiki/List_of_pumped-storage_hydroel... Given the first thought is how does this compare to pumped hydro, I worry this is vaporware.