Pretty funny video featuring Ludacris and Tommy Lee...way to be eco-friendly. The botton video discusses Smart Cities, which are cities that are controlled by an "invisible network of devices" that communicate with each other through established management systems. In theory, all the devices that are connected to the network are energy aware and are programmed to perform at optimum levels. So, what if the network is hacked? A compromise in security. Someone gains access to your whole system and shuts it down. I've heard about smart fridges that can order food from the grocery store after it has detected a low level of a certain item...I would hate to find out that someone hacked into my fridge and ordered 10 gallons of skim milk...I would probably go ape! Technology risks aside, I think intelligent energy systems are brilliant...I like the idea of building components working together to achieve energy efficiencies. However, a few concerns...from a residential perspective, how are costs tracked? Are they allocated among everyone in the system or is everyone charged separately? Can you see the performance of all your "smart" machines working in unison?