Project to Develop Cost-Reducing Technology for TLP Floating Offshore Wind Turbines

Tokyo – 21 January 2022 – Toyo Construction Co., Ltd. (“Toyo Construction”), together with
MODEC, Inc. (“MODEC”), Furukawa Electric Industry Co., Ltd. (“Furukawa Electric”), and
JERA Co., Inc. (“JERA”), has received, on 21 January, notice of acceptance of their joint
grant application, under the Green Innovation Fund program of the New Energy and
Industrial Technology Development Organization (“NEDO”), to conduct a project to
develop cost-reducing technology for tension leg platform (“TLP”) floating offshore wind
turbines (the “Project”).

 

To achieve carbon neutrality by 2050, the Japanese government has set a goal of increasing
offshore wind power generation capacity, including floating offshore wind, to 30–45 GW by 2040.
Because Japan has limited shallow-water sites where the bottom-fixed offshore wind turbines
now being developed around the world can be installed, there is a strong domestic demand for
practical floating offshore wind turbines that can be installed in deep water further from shore.

 

TLP systems are expected to reduce the cost of power generation because the high stability
of tension mooring to a seafloor foundation enables installation of large 15 MW-class wind turbines,
which have the potential to become mainstream in the future, on compact floating platforms.
In addition, TLP mooring lines are expected to be more socially acceptable than other mooring systems
because they can reduce the space occupied under the sea by 1/1,000 approximately and have less
impact on existing businesses such as the fishing industry and ship operations.

 

The Project aims to establish component technologies for TLP floating and mooring systems
and subsea power transmission systems with the aim of commercializing floating wind farms
in the early 2030s.

 

The four companies will jointly conduct component technology development under contract from NEDO
for two years beginning in April 2022. JERA will conduct surveys and measurement of the planned
verification site, design power generation facilities, and establish environmental parameters.
In addition to conducting simulations and demonstrations of component technologies previously studied
by each company—floating and mooring systems by MODEC, mooring foundations by Toyo Construction,
and power transmission systems by Furukawa Electric—a basic plan for a 15 MW-class power generation
demonstration facility will be drawn up based on design and environmental parameters provided by JERA.
The four companies will also begin considering supply chains for mass production and cost reduction
with the aim of realizing commercial projects following the power generation demonstration.

 

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. In this business, we will contribute to the spread of offshore wind power generation in the
future in Japan with maximized utilization of our rich track record in the design and construction of
offshore structure.