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Who’s Watching? Privacy Concerns Persist as Smart Meters Roll Out

The drive for a 21st-century electric grid faces privacy worries. What will happen to the detailed information on home energy use that utilities will be able to collect through smart meters?

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With the everyday buzz of a family kitchen in the background, a device communicates energy use data to a smart meter in a recent trial program in Great Britain. The technology can help save power, but some worry about loss of privacy.

Energy consultant Craig Miller, who spends much of his time working to make the smart grid a reality, got a jolt when he mentioned his work to a new acquaintance. The man, who happened to be a lineman at a Pennsylvania utility, responded earnestly:  "Smart meters are a plot by Obama to spy on us."

The encounter was a disheartening sign of the challenge ahead for proponents of the smart grid, who say that the technology can help the industry meet power demand, fix problems faster, and help consumers lower their electricity bills. Advocates of such a 21st-century grid are learning that they need to take privacy concerns seriously. Though smart meters are not, in fact, a domestic espionage scheme, they do raise questions: In a world where households start talking with the power grid, what exactly will be revealed? And who will be listening? (See related quiz: "What You Don't Know About Electricity.")

The term "smart grid" encompasses an array of technologies that can be implemented at various points along the line of transmission from power plant to...

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