Recently, the term "pumped-storage hydropower" is actually and appropriately discussed in the context of which one of the following ?
A
Irrigation of terraced crop fields
B
Lift irrigation of cereal crops
C
Long duration energy storage
Correct answer
D
Rainwater harvesting system
Explanation
Pumped-storage hydropower uses surplus electricity, for example from solar at midday, to pump water to an upper reservoir, then releases it through turbines to generate power when demand is high. It is the largest form of grid-scale, long-duration energy storage and is being promoted in India to balance variable renewable energy. It has nothing to do with irrigation or rainwater harvesting.
Energy & Green Technology