在日本，地震毁坏了电网、海啸冲毁备用发电机组的时候灾难就降临了。

In Japan, that calamity arose when the quake crippled the electric grid and the tsunami knocked out backup generators.

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总部位于苏格兰的Aggreko公司是世界上最大的临时电能供应商，该公司通过大批的备用发电机组进行发电。

Aggreko, a company based in Scotland, is the world's biggest supplier of temporary electricity in the shape of back-up generators.

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EPR依靠主动式水泵抽运以冷却反应堆，Areva发言人昨天对Technology Review记者称，设计有额外的备用发电机组以满足多余的需求。

While the EPR relies on active pumping to maintain reactor cooling, an Areva spokesman told Technology Review yesterday that it has extra backup generators for added redundancy.

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