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It is incredibly difficult to site new pumped hydro in places like California today. It might work in other places, but it's almost impossible in California.
by barney54 10y ago
It is incredibly difficult to site new pumped hydro in places like California today. It might work in other places, but it's almost impossible in California.
- ahartman00 10y agothis source claims that it would not be feasible to rely only on pumped hydro, due to the scale. [1] 1. http://physics.ucsd.edu/do-the-math/2011/11/pump-up-the-storage/ http://physics.ucsd.edu/do-the-math/2011/11/pump-up-the-stor...
- Gibbon1 10y agoThat source does thing like assume >I argued that we need 7 days of storage for it to be invisible to the end-user That said even with more reasonable numbers pumped hydro storage isn't going to work because the energy density is too low. I think roughly to store 1kwh your need to raise ~3.66 t water to 100m. Not very energy dense. However 1.8 kg of stone at 1000 degC will store about 1kwh of energy. That's a lot better. What's curious is Tom Murphy studiously ignores thermal storage.