We were given a demo of the new Zuli Smartplug system ($135-3 Pak/$50 for single) at CES 2015. The first production units should start shipping next week. The Zuli smartplug can turn any electrical device into a smart appliance. You simply plug it into a wall socket and your appliance, and you can monitor and control your devices remotely (to include power utilization.) The included app also works with your Nest!