To demonstrate how much less infrastructure his system requires, Howe uses the example of the Bath County PumpedStorage hydro-electric dam in Virginia, US.
为了证明这个系统无需太多的基础设施，豪举例说明美国佛吉尼亚州巴斯县抽水蓄能水电大坝。
2
The U.S. electric system has 2.5 gigawatts of pumped hydro storage capacity, but most of the good, cheap sites are already occupied, and creating new reservoirs is not environmentally benign.
美国电力系统具备25亿瓦的泵送水电容量，但大部分优而廉的水库已被占用，而创建新水库并非对环境无害。
3
The speed governor system is one of the key control systems in a pumpedstorage power plant.