Smarter electric grid could be key to saving power

George Tsapoitis displays an electric smart meter in his Milton ON home, Thursday, April 3, 2008. Tsapoitis uses his computer to visit an online control panel that configures his home's energy consumption. He chooses its temperature and which lights should be on or off at certain times of the day. (AP Photo/The Canadian Press, J.P. Moczulis)