美国电力公司安装了7兆瓦的电池，每个有公共汽车那么大，用来缓解输电线的超负荷现象，另外还有4兆瓦的电池还在研制中。
American Electric Power co. Inc. has installed 7 megawatts of the bus-sized batteries to ease congestion on its transmission lines, and it has an additional 4 megawatts under development.
第一个就是电力公司控制了输电线而且不希望产生竞争。
The first was that electric utilities controlled transmission lines and wanted no competition.
美国电力公司(AEP)用两年时间建设了一条从西弗吉尼亚到弗吉尼亚的输电线，但是审批过程却花费了14年。
American Electric Power (AEP) built a transmission line from West Virginia to Virginia in two years. The approval process had taken 14.
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