Pumped Hydro Storage has several advantages over other energy storage technologies. One of the primary advantages is that it has a very high efficiency rate. This means that very little energy is lost during the pumping and generating process. The efficiency rate of pumped hydro storage is typically around 80-90%, compared to 50-70% for batteries.

Pumped Hydro Storage is also a very reliable and long-lasting technology. The equipment used in pumped hydro storage systems has a lifespan of around 50 years, and the system itself can be operated for many decades with little maintenance required. Another advantage of pumped hydro storage is that it is very flexible.

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