Japan tries to catch up the lower wind power cost.
The wind blade illustration indicates the size comparison over 30 years of wind turbine development. We just visited wind turbine site near Tokyo, with the blade size of 60-70m.The chart is NOT including China, yet. We will update the video soon.
As of October 2016, Feed-in-Tariff (FIT) price of wind power is 22yen (US$0.21)/kWh for under 20kW and 55yen(US$0.53)/kWh over 20kW in Japan. Reference: Ministry of energy.