The power of the wind is visible for Londoners to see at Elephant and Castle where a wind turbine is turning on the roof of an 11-storey residential building. Photon Energy installed the 6 kW Proven machine in a four month pilot project to confirm that wind energy can play a part in the regeneration of that part of South London. The trial, carried out in collaboration with Southbank University, will assess the viability of building-mounted wind generators in an urban environment and measure the impact on nearby homes of noise and any vibration. A different design of turbine will be installed in the second phase of the project later in the year. Results of the trial will be passed to companies involved in the redevelopment of the Elephant and Castle area of Southwark, where all new buildings will be required to offset 10% of their carbon emissions by the use of renewable energy sources. "In Southwark, renewable energy is a core component of all development, making sure the borough becomes as green as possible," says councillor Richard Thomas from Southwark Council.