Watch:
IBM has create a short video showing how cities can increase energy efficiency with smart grids and sensors. These smart grids use sensors, meters, digital controls and analytic tools to automate, monitor and control the two-way flow of energy across operations’”from power plant to plug.
A power company can optimize grid performance, prevent outages, restore outages faster and allow consumers to manage energy usage right down to the individual networked appliance.
http://www.youtube.com/watch?v=B1iYM_ahyF4
More info
IBM – The Smarter City: Energy