What Does Your Smart Meter Know About You?

IEEE Spectrum Robotics Channel 

But machine learning systems, looking at that data, can tell something else about your home besides its energy use--they can tell if you are home, or if you are not. In a recent paper, Jin and his colleagues demonstrated that machine learning systems can be trained to detect occupancy without any initial information from a home owner. Using this assumption, the machine learning algorithms were able to tease out more detailed characteristics about power consumption when a home is occupied; they then are able to tell when someone is home or not, even when that person's patterns are outside the norm. "Right now, meters are sending accurate information about energy consumption.