>Isn't this the limit that governs pumped hydro as a storage technology? I was nitpicking there, yes. Pumped hydro has an "asking if we [could/should]?" proble

>Isn't this the limit that governs pumped hydro as a storage technology? I was nitpicking there, yes. Pumped hydro has an "asking if we [could/should]?" problem: extensive use of pumped hydro would be devastating to ecosystems. There are a number of "clever" strategies, such as allowing the lower reservoir to be the ocean: https://municipalwaterleader.com/implementing-oceanuss-pumped-storage-desal-plant-in-chile/ https://municipalwaterleader.com/implementing-oceanuss-pumpe... but I did not intend for that sentence to be read as advocating widespread uptake of pumped hydro. It's convenient in certain places, and it can fill in gaps for communities in need, but it comes with a big cost not measured in dollars. And the use of saltwater makes this problem much worse.