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The smart grid is taking hold slowly, held back by utility industry regulations and the lack of compelling applications for consumers.
Best Buy will demo new grid technologies designed to improve home energy efficiency and give consumers remote control of thermostats and appliances.
The familiar manual Honeywell thermostat will get a 21st-century upgrade by connecting over the Internet to Opower's home energy-efficiency recommendation service.
Smart-grid technology company Tendril acquires Grounded Power, a start-up which has applied techniques from campaigns to help people quit smoking to home energy efficiency.
Electricity use drops by an average of 15 percent in a pilot test of a smart-grid system among 100 commercial and business customers.