据能源信息管理部报告，美国仍有600多家火电厂，其发电量约相当于美国用电总量的1/2，到2030年，这个数字仍将达到47%。

The Energy Information Administration reports that more than 600 coal-fired plants still produce about half of America’s power and will still produce 47% of it in 2030.

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至于类如无线信号、电池电量等状态信息则被显示在其中一块屏幕的边沿。

Statuses, like wireless signal and battery life, are displayed along the rim of one of the screens.

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来自国家电力监管委员会的信息，其中的相当一部分，已用于在去年发电量在554 420兆瓦的全国541家火力发电站了。

Much of it goes to the country's 541 coal-fired power plants, which pumped out 554,420 megawatts of electricity last year, according to the State electricity Regulatory Commission.

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