Question: Consider the scope of pumped hydro storage needed to store and release 12 PJ of energy per day. Compare to the total US hydro power

Consider the scope of pumped hydro storage needed to store and release 12 PJ of energy per day. Compare to the total US hydro power output. If the full 12 PJ were stored using local modest-sized UPH reservoirs of volume 20000 m³ at a depth of 100 m, how many such reservoirs would be needed?

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US hydro power use in 2008 was 280 TW h 1 EJor 28 PJd So 12 P... View full answer

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