Question

UPSC Prelims 2024 Question:

Recently, the term "pumped-storage hydropower" is actually and appropriately discussed in the context of which one of the following?

1. Irrigation of terraced crop fields
2. Lift irrigation of cereal crops
3. Long duration energy storage
4. Rainwater harvesting system

Answer (Detailed Solution Below)

Option 3: Long duration energy storage

Detailed Solution

Explanation:

The term “pumped-storage hydropower” relates to long-duration energy storage. Pumped storage hydropower (PSH) is a type of hydroelectric energy storage. It is a configuration of two water reservoirs at different elevations that can generate power as water moves down from one to the other (discharge), passing through a turbine. The system also requires power as it pumps water back into the upper reservoir (recharge). PSH acts similarly to a giant battery, because it can store power and then release it when needed.

Therefore, option (3) is the correct answer.

Subject: Science & Technology | Recent Developments

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