This is the The Aerogenerator X Vertical Axis Wind Turbine, a design concept that will generate more wind power than current vertical designs. It is 885 feet wide and will rotate three times a minute over the ocean. Besides generating more power, the advantages of such a design will be the ease of repair compared to vertical turbines and the fact that it will pose less of a threat to birds. See it in action at Gizmodo. Link -via The Litter Box