In fact, it's getting easier every day, thanks to a slew of gadgets that can monitor how much electricity you use, reduce energy waste and even generate a little juice to power your digital lifestyle.

事实上，感谢那个旋转的小发明可以检测每天我们电的使用量，它使我们每天变得很轻松。减少能源的浪费和做一点果汁给你的数字生活风多风采。

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A study of a solar-powered blood pressure monitor finds it can be an effective tool in places where electricity - and even batteries - can be in short supply.

对太阳能血压计的研究显示，这种血压计在那些缺少电力或者电池的地方可以发挥大作用。

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You simply set the rate of your electricity cost and plug your appliance into the device, and a monitor calculates its energy cost.

你简单的设置一下电费的单价并把仪器安装到家用电器上，它就可以计算出消耗的电费。

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The government announced the plan to install smart meters to monitor electricity and gas consumption in 26 million homes earlier this year.

BBC: Smart meters 'need live displays'

This allows the computer to monitor incoming notifications without using much electricity.

BBC: Skype slashes battery use for Windows 8 system launch

Hundreds of thousands of switches and circuit breakers must be operated manually, and the main transmission lines have little instrumentation to monitor the second-by-second flow of electricity from unpredictable new sources like windmills.

FORBES: Juicing the System