Several companies have demonstrated wireless power over distance in the past decade, but tangible products have failed to materialize. More than a century has passed since Nikola Tesla thought up the idea of transferring electrical energy through the air, so you could be forgiven for thinking it's simply not feasible to implement. I've been watching this space for over five years and have grown increasingly skeptical. But now I have a working example in my home.
Blocking Wireless Power There are several good reasons why wireless power over distance has yet to take off, and why, even with proven examples, enough obstacles remain to encourage healthy skepticism. To simplify massively and pick just two: It is inefficient , and only relatively small amounts of energy are realistic with current limitations and safety in mind.