Akita Prefecture-Offshore is a 448MW offshore wind power project. It is planned in Sea of Japan, Akita, Japan. The project is currently in permitting stage. It will be developed in single phase. Post completion of the construction, the project is expected to get commissioned in December 2026.

Project Type Total Capacity (MW) Active Capacity (MW) Pipeline Capacity (MW) Project Status Project Location Project Developer
Offshore 448 448 Permitting Akita, Japan Obayashi


The project is being developed by Obayashi.

The project is expected to generate 1,300,000MWh of electricity. The project cost is expected to be around $2,195.2m. The project will be spread over an area of 49km².

Development Status

Post completion of the construction, the project is expected to get commissioned in December 2026.

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Contractors Involved

Siemens Gamesa Renewable Energy will be the turbine supplier for the wind power project. The company is expected to provide 56 units of SG 8.0-167 DD turbines, each with 8MW nameplate capacity.

Siemens Gamesa Renewable Energy is expected to perform operations and maintenance for the wind power project.

About Obayashi

Obayashi Corp (Obayashi) is a general construction contractor. It executes a range of civil engineering and building construction works. The company’s services portfolio includes consulting; design and engineering; diagnosis, evaluation and maintenance of buildings and related facilities; management of infrastructures such as road, railway and airports; and real estate services. The company manufactures and sells building materials; construction machinery and equipment; and concrete products for several projects. It also carries out other businesses that comprise renewable energy, private finance initiatives, and hotel and golf course business operations. The company has operations in Europe, the Middle East, Asia, North America and Oceania. Obayashi is headquartered in Tokyo, Japan.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.