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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.
The familiar manual Honeywell thermostat will get a 21st-century upgrade by connecting over the Internet to Opower's home energy-efficiency recommendation service.
Best Buy will demo new grid technologies designed to improve home energy efficiency and give consumers remote control of thermostats and appliances.
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.