The hydrogen gas could then be fed into a storage system and used to generate electricity when additional or backup power is needed.

然后可以将氢气输入到存储系统中，并在需要附加或备用电源时用于发电。

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Backup power could also be provided by linking wind farms with a solar cell, with conventional or pumped-storage hydropower, or with efficient natural-gas-burning turbines.

将风力发电厂与太阳能电池、常规或抽水蓄能的水电或高效的天然气涡轮机连接起来，也可以提供备用电力。

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Solar cells will still be used for backup power, however.

太阳能电池仍将作为备份电源。

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Since John is still doing his laundry during peak load hours, the utility is paying top dollar in infrastructure costs and high-cost backup power plants.

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It can also be connected to an external 5-volt Lithium-ion polymer battery for backup power, enabling use in areas where electricity can be inconsistent.

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The report calls for requiring nursing homes and adult-care facilities to have evacuation plans and backup power sources and asks for stricter enforcement of standards for utility companies.

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