- TOYO HISTORY
- LANGUAGE
Toyo Construction Co., Ltd. (hereinafter referred to as “Toyo Construction”) and MODEC,
Inc. (hereinafter referred to as “MODEC”) have jointly received approval in principle
(hereinafter referred to as “AiP”)for “floating structure & tether system and tether pile
foundation for TLP type floating offshore wind turbine” from NIPPON KAIJI KYOKAI
(hereinafter referred to as “ClassNK*1”).
The acquisition of AiP has been as one of the tasks for the NEDO’s*2 Green Innovation Fund
Phase 1 project which was carried out by Toyo Construction, MODEC, Furukawa Electric
Co., Ltd., and JERA Co., Ltd. The AiP has been obtained based on the drawings and related
documents of the floating structure & tether system provided by MODEC and those of tether
pile foundation provided by Toyo Construction.
This time, for the demonstration project in Japan, both companies have obtained another AiP
from ClassNK with the aim of preempting some of evaluation items for Wind Farm
Certification and Classification Surveys that will be required during the demonstration project.
In acquiring this AiP, both companies also conducted a study on Japan’s unique
environmental conditions, such as earthquakes and tsunamis, and received valuable opinions
from ClassNK including the opinions by experts, which will be reflected in the design and the
development during the expected demonstration project.
Toyo Construction raises the offshore-wind-power related business as a “growth driver” and
is promoting the business to make it our future core business. Particularly, we put priority and
focus on developing technologies for lowering costs related to the offshore wind power
generation business. To contribute to create a carbon neutral society by 2050, we will continue
to diligently undertake various activities on offshore wind power generation.
*1 ClassNK: an international accredited registrar and classification society headquartered in
Tokyo, Japan.
*2 NEDO: New Energy and Industrial Technology Development Organization which is
Japanese national research and development agency.

Japan’s first field experiment case of pulling up turbine foundation piles (July 2023)

A demonstration field experiment by an offshore work vessel (August 2023)
PDF can be found here.
https://www.toyo-const.co.jp/en/wp/wp-content/uploads/2024/05/20240521E.pdf
Contact for inquiries: Planning & sales dept, Offshore wind Div.
TEL: 03-6361-5490