Wind turbine near Glynde, East Sussex. (For scale, note figures near base of turbine.) The turbine is located on the Glyndebourne Opera estate and was officially inaugurated by David Attenborough on 20 January 2012. The 900 kW Enercon E44 wind turbine has a rotor diameter of 52m. It is expected to generate about 90% of the electricity used at Glyndebourne.