A wide and ever-evolving range of these products can deliver real-time data on any home’s energy use.

Photograph by Realimage/Alamy

Usage Tips

A meter is only as good as its user. Whether a meter is truly green or not depends on its user—and it is still not clear how much most people will take advantage of the energy information these products can provide.

It’s one thing to be able to clearly see your energy use and what it costs. It’s quite another to put your own energy into reducing that impact. Most efficient users really enjoy using this stream of information to make their homes more green—not least because when they trim excess energy use they can see the impacts on consumption—and costs—immediately.

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