I just became aware of another product like this. Our area uses Itron or Schlumberger automated electric meters. These meters already have a radio transmitter in them. I got the Digi ERT/ethernet gateway http://www.digi.com/products/wireless-routers-gateways/gateways/ert-ethernet.jsp#overview and set it up for my meter. There is an app for both iPhone and Android that provides energy monitoring via the Digi Energy Day Trader website. If your house has a newer smart meter, there is a different Zigbee gateway that works for those meters. I just got mine set up last week, and it is working great.