Quidnet is taking the largest form of energy storage today, which is called pumped hydro storage.

Quidnet 正在采用当今最大的能量存储形式，这就是所谓的抽水蓄能。

The trouble is that pumped hydro storage requires a specific kind of geography.

问题在于抽水蓄能需要特定的地理条件。

And eventually we will run out of how much pumped hydro storage can do.

最终我们将耗尽抽水蓄能的容量。

Pumped hydro storage is more than a century year old.

抽水蓄能已有一个多世纪的历史。

For pumped hydro storage the majority of the cost is building the dam and constructing on the side, and on the top of the mountain.

抽水蓄能的大部分费用用于在山的侧面和顶部建造水坝。