Kite power

Here's something refreshingly new and interesting:

A kite the size of a football field will provide most of the power for a German heavy freight ship set to launch in December.

reported by the Network World.
And that

. . . it expects the kites to decrease fuel consumption by up to 50% in optimal cases as well as a cutback of the emission of greenhouse gases on sea by 10 to 20%.

I don't know how practical this new power can be. But I think this is the kind of innovation this world really should encourage for more, a lot more!