Edit: As several have pointed out... I'm wrong. I was confusing energy with power.

> microwave energy—an electromagnetic wave just like Marconi’s radio waves, only a bit more energetic

Sorry for the nitpick, but, the difference between microwave and longer wavelength radio waves is frequency, not energy! I see this all the time in popular science reporting and it drives me nuts... Microwaves are electromagnetic waves, just like UHF, VHF, etc., except that they are a higher frequency (and thus, shorter wavelength). In fact, in general, longer wavelength radio waves are often transmitted at higher power than shorter.

Unless they mean that this microwave energy transfer scheme itself is using more energetic radio waves than other types of radio systems... but it doesn't read that way to me.