During the summer I run my air conditioner about 6 - 8 hours per day. My neighbor runs his a/c 24 hours per day in the summer. My summer bill goes up about $100/month with the a/c use. So my neighbor's bill probably goes up $400 - $500. The point is, there are many different levels of power consumption throughout identical homes in any neighborhood. You'd have to be using a whole lot of electricity to catch anyone's attention.