This looks interesting, but the conjectures people are making about pcell (the frontrunner for 5G cellular) being used for wireless power describe a more attrac

This looks interesting, but the conjectures people are making about pcell (the frontrunner for 5G cellular) being used for wireless power describe a more attractive solution. They would provide power only to the area of space where the receiver is which first and foremost makes it inherently safer than a system which doesn't focus the power. I'm not going to claim I know much on the topic, but intuitively it would seem that the ambient power produced by the pcell transmitters would scale logarithmically with the power being transmitted. But I trust that Witricity's produce is safe for most people since these things are highly regulated for safety. Perhaps more important to adoption is that the nature of Witricity's technology makes it impossible to selectively transmit power. Therefore, it would be impractical to charge a fee for using a power source. Pcell can do this, because it has to to be useful as a cellular technology. I don't see a world where electric cars are charge wirelessly by beacons on roadsides, not at current electricity prices and the loss that would be involved, but I can imagine low power devices such phones and laptops becoming much more elegant through wireless power.