Wind farms are growing bigger in Japan. Last month, the 78 MW Shin-Izumo wind farm of Vestas 3 MW turbines in Shimane Prefecture began operation, the biggest yet. It was developed by Eurus Energy near Izumo City and its production is being sold to Chugoku Electric Power. Eurus controls 430 MW of installed capacity at 17 sites across Japan and is building wind farms at three further sites with a combined capacity of 67 MW. Shin-Izumo may not be the biggest wind plant for long. Eurus competitor Clean Energy Factory has proposed a 99 MW wind farm in Shinshiro City in Aichi Prefecture, although a one year environmental impact study must precede construction. And Chubu Electric subsidiary Ctech plans to expand a plant in Mie Prefecture to 95 MW by 2016 (Windpower Monthly, December 2008). Clean Energy Factory, based in Hokkaido, has built seven wind farms in Hokkaido with a combined capacity of 89 MW and expects to double that with the completion of three more this year for a total of 95 MW.