Thy neighbor's energy usage - TwinCities.com

Homes with above-average scores get a smiley face. Homes in the top 20 get two smiley faces. In Sacramento, Calif., which tried a similar program a year ago, frowny faces were used for less-efficient homes, but that sparked vehement protests. Owatonna decided not to touch the frownies. In Owatonna, households that fall below the midpoint were told they used "more than average."
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Beginning next year, Xcel and every other utility in Minnesota will be under a state mandate to reduce overall energy consumption by 1.5 percent per year, and the utilities need new ammunition.
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...the report also spurred the Ericksons to swap out their light bulbs, disconnect a second freezer in the garage Julie's husband Ross used during hunting season and buy old-fashioned wired telephones that get their electricity through the phone line to replace three cordless phones that needed a wall socket.