Architect Marks Barfield and low carbon engineer XCO2 have unveiled this image of a new form of urban energy generation.

The Beacon, a 40 m high Y-shaped structure, is designed to be planted along major roads and public spaces, reaching the stronger breezes above buildings. The intention, by placing the structure in prominent London locations, like City Hall, is to raise awareness of renewable energy. The five wind turbines at the top can also become suspended video screens or light displays due to LEDs integrated within the blades.