The Consumer Electronics Show (CES) wrapped up Jan. 13, after a typically splashy convention that unveiled numerous new gadgets. Although some of the items are perhaps less useful than others – automated unicycle, anyone? – many of the consumer electronics displayed are notable for their practical embrace of energy efficiency measures. To insiders, this signals that manufacturers are cementing energy efficiency as a part of their business models going forward.

Here are some of the more notable energy-efficient innovations from CES...

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