http://kitepowercoop.org/ http://kitepowercoop.org/ Looks like there is an open-source community around energy kites. They're largely focused soft form kites,

http://kitepowercoop.org/ http://kitepowercoop.org/ Looks like there is an open-source community around energy kites. They're largely focused soft form kites, rather than fast moving rigid wings. And another rigid wing competitor: http://www.ampyxpower.com/ http://www.ampyxpower.com/