Most wind generators use blades that look kind of like a prop plane's propeller working in reverse, but that's changing based on new aerodynamic research from Siemens. The result is a series of add-ons for an existing wind turbine's blades, which increases efficiency without costly replacement.
It's not the first time we've seen wind turbines on a building, but it is the first time they've been built into the design from the beginning, and realized as a real structure. In April, London will put the finishing...
Every continent, almost by definition, is surrounded mostly by oceans. Big, powerful, wave-filled oceans. Harnessing the energy of waves has recently moved out of science-fiction and into reality as Oregon gets America's first wave park. Ocean Power Technologies is building...