Fuel cells to generate electricity operate on hydrogen and oxygen.

发电的燃料房就是使用氢和氧。

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Unlike concentrating solar, the other strategy for generating solar electricity, PV systems can operate efficiently on a small scale.

不像聚光太阳能系统，这是太阳能发电另外一种方式，光伏系统可以小规模的有效运作。

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The three active reactors shut off automatically as designed, but a lack of electricity left workers unable to operate their cooling systems, leading to overheating.

三个运行中的反应堆如设计的一样自动关闭，但停电使工人无法运行降温系统，导致过热。

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The electricity generators operate like wind turbines but with blades driven by tidal wave action.

BBC: ?70m tidal power scheme off Anglesey wins approval

But the city, where power is distributed mainly by two private firms, is an exception: almost everywhere else state electricity boards operate the grid, usually badly.

ECONOMIST: Energy in India

"There are no carbon emissions while using photovoltaic cells to produce electricity -- then (we can) use electricity to operate desalination plants to produce freshwater, " he predicts.

CNN: Counting the carbon cost of bringing water to the desert