I think Steorn is looking beyond the grid. CEO Sean McCarthy has stated, “The availability of free energy will change everything, the availability of free energy in the form of Orbo is even more significant since it can be engineered directly into devices, i.e. no grid connections are required. So Orbo will impact every aspect of our lives”
http://www.freeenergytimes.com/?p=46
Since it doesn't work, they're selling hype.