Ministry of Land, Infrastructure and Transport
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Ports and Harbours Bureau
  Wind power generation at port and harbor spaces

Wind power generation photo
 Port of Kitakyushu   Port of Muroran   Port of Setana 

  As one approach to addressing global environmental concerns, the introduction of wind power generation - particularly using land stations - has expanded rapidly in Japan over the past several years.
  The development of wind power generation facilities in the future at sea and in seaside areas endowed with stable wind conditions and enormous wind power energy is considered necessary and indispensable for further promoting natural energy use, and for requests for locating facilities in port and harbor spaces have increased.
  The primary advantages of ports and harbors as wind power generation sites include the following.

  (1)  Strong, comparatively stable wind
  (2)  Located near areas of industrial concentration, with advantages from the perspective of systems and communications
  (3)  Easy delivery and transport of materials
  (4)  Comparatively few problems such as noise and vibrations.

  Study Group for Promotion of Wind Power Generation at Harbors and Coastal Areas

  This study group conducts research activities to promote wind power generation at harbors and in coastal areas through cooperation among industries, academia and government.

  The Study Group for Promotion of Wind Power Generation at Harbors and Coastal Areas, which is comprised of two committees (the Location Planning Committee and the Construction Technology Committee) and five working groups (WG) (Planning WG, Environmental Evaluation WG, Load WG, Structures WG and Construction WG), conducted studies from the perspectives of both the environment and technology over a two-year period from 2003. The details of each WG’s activities is described below.

Planning WG
Studied issues such as the necessary project schemes and related laws and regulations, and support systems when locating ocean wind power generation facilities in port and harbors districts.

Environmental Evaluation WG
Studied issues such as ocean wind power generation facility environmental impact assessment items and techniques. Also summarized the results of an underwater sound measurement study and an aquatic life survey implemented at a site at Setana Port (Japan’s first ocean wind power generation site), in order to confirm the environmental impact of ocean windmills on aquatic life.

Load WG
Studied issues such as the orientation of thinking and topics concerning design loads in Japan, based on design trends for foundations of ocean wind power generation facilities in Europe. Also summarized the results of a wind direction and wind velocity study implemented at the Setana Port site.

Structures WG
Conducted comparisons of ocean wind power generation facility foundations and tower structural forms, and studied issues such as the characteristics of each form, approaches to design and issues to note. In particular, investigated analytical methods and assessments for the influential factors and dynamic problems unique to ocean wind power and the performance requirements for facility foundations.

Construction WG
Studied issues such as ocean-based construction methods for each foundation form, main body structures, submarine cables and other components of ocean wind power generation facilities, and their unique characteristics and examples. Similarly studied approaches to the maintenance management, repair and dismantlement and scrapping processes unique to ocean wind power, and related topics.

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The Ministry of Land, Infrastructure and Transport, Ports and Harbours Bureau
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