Pretty cool - though I am kind of doubtful that wind energy will ever be economical.

http://techcrunch.com/2013/05/22/google-x-acquires-makani-power-and-its-airborne-wind-turbines/

After previously investing into the company, Google has now acquired Makani Power, a green energy startup that is currently building airborne wind turbines. The acquisition was first reported in Brad Stone’s Businessweek story about Google X and judging from Stone’s story, the team will join Google X. Google invested $10 million in the Alameda, CA-based company in 2006 and another $5 million in 2008. As far as we can see, this also marks the first time Google has acquired a company specifically for its Google X skunkworks.

Stone reports that Google CEO Larry Page approved the acquisition, but as Google X’s director Astro Teller notes, Page said that X “could have the budget and the people to go do this, but that we had to make sure to crash at least five of the devices in the near future.”

The company was founded by Saul Griffith and Don Montague, a former World Cup windsurfer. The price of the acquisition was not disclosed.