Does anyone have a source for this that isn't the press release? I'm struggling to find something more technical. The video talks about 95% efficiency but the press release says 90%.

Their website doesn't seem to have any real information either, just links to 2011 papers and a note that they work on wireless power transfer.

I assume there's more information somewhere, but I'm completely failing to find it. It's a shame it's not more common to at least link to in press releases (or on the video description).

If I'm reading this right, most plug in systems currently are a third of the 20kW rating of this charger, but this wireless charger is 90% efficient. So the extra 2kW is just lost to heat? That's a lot of energy to lose - I'm not sure if the convenience is worth it when it still would be close to a half hour to charge the 10kWh battery they're testing on.

For comparison, Tesla Superchargers are 120 kW at peak (when charging an empty battery): http://insideevs.com/tesla-cranks-superchargers-up-past-120-...

They are not wireless, though.