Re:$60/MWh for advanced nuclear electricity is achievable: G...
by defrost on Tuesday April 04, 2023 @03:57AM
(#35436465)
Pumped hydro requires a large volume of fluid and a height difference.
Valleys are useful as they provide a large volume that can be capped with relative ease.
An underground reservoir requires a large volume to be excavated (or a pre existing cave system) and a deeper chamber again for the turbines to powered by the fall .. to yet another deeper underground reservoir.
I'm not saying this is impossible, I stating that as an engineering venture (actual civil engineering not software "engineering") there are some real challenges and greater ones than using existing topography.
Valleys are useful as they provide a large volume that can be capped with relative ease.
An underground reservoir requires a large volume to be excavated (or a pre existing cave system) and a deeper chamber again for the turbines to powered by the fall .. to yet another deeper underground reservoir.
I'm not saying this is impossible, I stating that as an engineering venture (actual civil engineering not software "engineering") there are some real challenges and greater ones than using existing topography.
You're hand waving a lot away with your comment.