Plug-in hybrids, meanwhile, could charge at night, when demand is low, and even pump power back to the grid while parked during the day.

同时，当夜晚用电低谷时，可以利用混合动力装置充电(译注：wikipedia)，甚至可以在白天再把电力传输回电网里。

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Power should cost more when demand is high and less when it is low, giving people an incentive to run the washing machine in the middle of the night.

当需求大的时候，能源的价格就高，反之，需求小，价格就低，引导人们在物业使用洗衣机。

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During periods of low demand, excess power is used to pump water into a higher reservoir.

在低需求时期，剩余功率被用来把水抽到更高水位的蓄水池中。

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In times of low power demand, Schmitz says the the system gradually re-stores the battery power so it is able and ready to be used when the customer again needs power.

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The current wave of "always-connected, always-on" devices requires complex SoCs to achieve the performance and low power consumers demand.

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The glut exacerbates the inefficiency by forcing the utilities to rely on dirtier and less efficient sources of power to meet peak demand rather than simply redirecting surplus power from low demand to high-demand markets.

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