Wind Atlas and Locations of Offshore wind farms in Japan
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Yoshinori Ueda General Manager, JWPA
Japan Wind Power Association
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Kamichi Bldg.3F, 15-3 Nishishinbashi 3-Chome Minato-Ku, Tokyo, 105-0003 Japan I www.jwpa.jp
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：Floating Offshore Type
Annual Mean Wind Speed(30m above sea/ground level)
1 Ishikariwan Power Plant (P) 2 Kazamidori (E) 3 Tsuruga Power Plant (P) 4 Mutsu-Ogawara Power Plant (P) 5 Noshiro Power Plant (P) 6 Akita Port Windfarm (E)
Akita Power Plant (P) Offshore Type ：Bottom-mounted 7 Sakata Power Plant1 (E) Sakata PowerOffshore Plant2 (P) ：Floating Type 8 Murakami Power Plant (P) 9 Experimental Study Project of Floating Offshore Windfarm (E&UC)
10 Kamisu Offshorewind Power Plant1 (E) Kashima Offshorewind Power Plant2 (E) Kashima Port Offshorewind Farm3 (P) 11 Offshore Wind Power Experimental Study (E) 12 Omaezaki Power Plant (P)
Annual Mean Wind Speed(30m above sea/ground level) step into the construction work now. Another problem is the Environmental Impact Assessment procedures (EIA) which requires about four years to pass through. Tens of projects are still in an early planning stage at this moment. Yoshinori Ueda General Manager 17
Unfortunately, there are still many obstacles for the offshore wind power development in Japan. The most troublesome problem is a lack of jack-up ships, and the cabotage. Developers could not estimate the cost and schedule of the offshore construction work, because of the uncertainty of these problems. Therefore, all projects in Japan remain at the feasibility study stage and no one can