This can overload power grids, causing blackouts.

这会使电网超负荷，造成停电。

Vigilance uploaded a virus into the power grid.

" 时刻警惕" 向电网上传了病毒。

Island communities and they're not connected to power grids.

是一些岛上的村落，而他们没有连接到电网。

And soon, Edison's power grid covers half of Manhattan.

很快 爱迪生的电网就布满了半个曼哈顿。

But he also creates the first commercial power grid.

他还创立了第一个商用电力输送网。

The biggest threats are to satellites and to global power grids.

最大的威胁是卫星和全球电网。

The Machine is using the power grid as a giant brain?

机器把电网当成自己的大脑了吗？

Now, this line shows when wind power feeds the California power grid.

现在，这条线显示了风力发电进入加州电网的时间。

However, getting their electricity beyond local power grids is much more difficult.

然而，将电力输送到当地电网以外的地方要困难多了。

Today, those heat waves kill, they strain power grids, they damage crops.

今天，这些热浪造成死亡，使电网紧张，损害庄稼。