Google has been saying for a while they want to help turn the world green and empower citizens to help do their part. Now comes news of a new prototype of a Google product called Google PowerMeter, where houses that are connected to energy grids via the Internet, can be monitored to determine how much energy the house is currently using and identify potential offenders of energy use when it is not needed. So you will be able to remotely determine if you left the lights or computer on when not home, and can also identify the biggest energy hogs in your household.
Every little bit counts!! Hopefully this will be something that can be used sooner than later, although it may depend on getting houses tied up to a smart energy grid to take advantage of the technology.