This was an interesting article on Smart Grid but it only talks about the customer interface aspect. I think it would also be interesting to know how this can be used to improve the overall efficiency of the grid. For instance, my local utility offers smart thermostats that they can adjust remotely (by a few degrees) to reduce the peak load. I've also heard of car chargers that can be set to only run during off-peak hours. Has any of this made a difference in the efficiency of energy production and transmission? If so, what customer incentives are in place (or necessary) to encourage the customers to adopt these devices?