You've heard of hydroelectric dams, but have you heard of a wind dam? That's the imaginative idea behind this "sail turbine" design by Chetwoods Architects. This giant sail, which is designed for a windy mountain gorge near Northern Russia’s Lake Ladoga, acts as a dam, funneling the wind through a central turbine. With traditional turbines, more wind passes around the rotors than through them. But this inefficiency is solved if the wind is collected and dammed within a giant sail.
This design also passes the aesthetic test — a difficult task given that its proposed placement is in such a spectacular, unblemished landscape.