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Number of wind generator installation in Japan exceeded 260 cases as of end of March 2001, with the output of approxmately 144MW. Until then, the majority of installations were for test study purpose or for demonstration purpose in Power Company, local public body or the government. But as surplus power buy-in system by the electric power company set forth in 1992, and guideline on system link technical requirement introduced in 1993, these years people are allowed to sell generated electricity to the power company, and we see increased number of installations for power selling business...more>>

The European wind industry dominates the global market, taking 89 per cent last year. Wind power is the fastest growing energy technology. We are in Japan to explain the success of wind power to date and highlight the potential for Japanese business sectors to participate in the lucrative future global markets. Japan could be a leader in this sector", said Corin Millais, CEO of the European Wind Energy Association...more>>


GE Wind Energy is supplying 20 of its 1.5-megawatt wind turbines to Rokkasyomura Wind Development Co. Ltd., a subsidiary of Japan Wind Development (JWD) Co. Ltd., for its Rokkasho-mura Wind Project - soon to become one of Japan's largest wind power installations. The project is currently under construction in Rokkasho-mura, located in the eastern part of Aomori Prefecture, approximately 50 kilometers north of the city of Misawa. When the project is completed later this month, the power will be purchased by Tohoku Electric Power Company under a long-term power purchase agreement (PPA). The project will add 30 megawatts of clean, wind energy capacity to the Japanese electricity grid...more>>


Potential Wind Resources: Total Electric Usage (2001) Population (July 2003) Energy usage /person/year
24.2465 GW 964,200 GWh 127,214,499 7.5793 MWh

The estimated potential wind production would cover approximately 73% of Japan's energy needs.

Energy Conversion:

1 TWh (terawatt-hour) 1000 GWh (gigawatt-hour)
1 GWh (gigawatt-hour) 1000 MWh (megawatt-hour)
1 MWh (megawatt-hour) 1000 KWh (kilowatt-hour)
1 KWh (kilowatt-hour) 1000 Wh (watt-hour)

References and Additional Information about Wind Resources in Japan:

ISOPE Conference: Potential for Floating Offshore Wind Energy in Japanese Waters
Agency for Natural Resources and Energy: Wind Power Generat
General Electric: Wind Power Station in Japan
Greenpeace: Japanese version of the joint EWEA "Wind Force 12"
Energy Breakdown Chart of Japan: Energy Chart
Energy Grid Map of Japan: Grid Map

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Updated: 2016/06/30

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