With smart grids, there should be no need to send out lorries and ring doorbells when the power fails.

有了智能电网，停电事故发生时，就没有必要派出维修车辆，敲别人门铃。

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Nowhere more so than with smart grids, which are regarded as a major contributor to a low-carbon economy.

FORBES: Hard Lessons For Smart Grids

More investment is flowing to technologies such as upgraded power grids with smart meters that allow users to better manage their consumption of electricity, and energy-efficient buildings that reduce the cost of operations and improve human health through better air quality.

FORBES: Smart Communities will Build Green Infrastructure

The ultimate point of smart grids, however, is to allow dynamic pricing, with electricity charges fluctuating in response to demand.

ECONOMIST: Utilities are getting wise to smart meters and grids