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Home efficiency gurus at OPower add $50 million

Kleiner Perkins and Accel Partners fund OPower to build up its software system for offering home energy efficiency recommendations through utilities.

By November 30, 2010


OPower looks to add human touch to smart grid

Your neighbors and lots of data crunching can help you cut home energy bills, says start-up, which is releasing software for smart-grid programs that nudge consumers toward efficiency.

By May 2, 2010


Facebook 'social energy' app compares home efficiency

Social networking meets energy efficiency in Facebook app done with Opower and the Natural Resources Defense Council that lets people compare energy use to friends and the national average.

By October 17, 2011


Start-up crunches data for home energy efficiency tips

Energy efficiency company Opower launches service to provide energy-saving tips online and through reports that compare one home's profile with its neighbors.

By October 1, 2009


Facebook friends compete to lower energy use

Opower's social energy app on Facebook lets people track electricity use, compare to national averages, and compete with friends to improve home efficiency.

By April 3, 2012


Study: Meter data's impact depends on collective use

Consumers who receive data on home-energy consumption reduce their usage incrementally, a study shows, but there is potential for a huge impact in the U.S. collectively.

By May 24, 2011


Smart thermostats to get smart cloud software

The familiar manual Honeywell thermostat will get a 21st-century upgrade by connecting over the Internet to Opower's home energy-efficiency recommendation service.

By September 13, 2011


iPhone 5 estimated to cost 41 cents per year to charge

A new estimate says Apple's newest iPhone costs only 41 cents a year to recharge if you do it once a day.

By September 28, 2012


Tendril app tries to Energize consumer efficiency

Smart grid company releases an application that seeks to improve consumer involvement in home energy with personalized energy plans and social networking.

By February 1, 2011


Bill Joy chases green-tech breakthroughs

Futurist and Kleiner Perkins green-tech venture capitalist Bill Joy says VCs need to focus on breakthrough energy technologies, such as cheap distributed solar, to succeed.

By April 6, 2011