〜Kitakyushu Hibikinada Offshore Wind Farm Project〜

We are proactively working towards the further development of Kitakyushu City and the “CollaborativeShirashima

Port

AreaofK

itakyushu

Wind Turbine
Installation
Area

Hibikinada
Fukuoka
Kitakyushu

Project Overview
The Kitakyushu Hibikinada Offshore Wind Farm is located in the Hibikinada Sea off the coast of Wakamatsu-ku, Kitakyushu,
within an area of 1-10km from north to south and 11 km from east to west. The wind farm consists of 25 large wind turbineswith the unit capacity of 9,600 kW and its maximum total output is 220,000 kW with operating over 20 years.
The Kitakyushu Hibikinada Offshore Wind Farm will be the largest offshore wind farm in Japan upon its completion in termsof the generating output power scale.
It is expected to annually generate 500 million kWh of electricity, which is enough to supply power for 170,000 households.
The amount of this electric generations of the farm is equivalent to 40% of the households in Kitakyushu City.
The wind farm construction is scheduled to be completed within FY2025.
Basic Data

Size of wind turbine (image)Description

ContentsName of Farm

Kitakyushu Hibikinada Offshore Wind Farm

Project Area / Water Depth

Approx.2,700ha / Approx.8〜30m

WTG

Maximum Total Output

220,000 kW

Unit Capacity × No.of WTGs

9,600kW×25

Rotor Diameter

174m

Height (Tip Top)

Approx.200m above sea-level

Type of Foundation

Jacket Type (Fixed Bottom)

TurbineRotor diameter 174m
approx. 200m

Diameter of Ferris wheel(approx. 50m)
approx.
60m
Cha-cha town
Ferris wheel

Jacketapprox.
25〜46m

Sea level
Sea bedDevelopment of the Oﬀshore Wind Farm with the Local Community and Stakeholders”.
Project Area Map（image）

Ainoshima

Shirasu Lighthouse

Port Area ofKitakyushu

Shirashima Museum

Pre-assembly Yard

O&M Base Port

Hibiki Wind Energy Off ice

Kitakyushu Eco-Town Center

Project area : approx. 2,700ha

Designated area for offshore wind farm project under the public tender*Google Earth/Data SIO, NOAA, U.S. Navy, NGA, GEBCO/image@2023 TerraMetrics

Development History
A consortium, consisting of the current five shareholders of Hibiki Wind Energy Co., Ltd.,was selected as the developer and operator for the Kitakyushu Hibikinada Offshore Wind
Farm Project by Kitakyushu City through a public tender process in February 2017.
Then, Hibiki Wind Energy Co., Ltd. was formally established in April soon after thedetermination and the company has started to conduct the wind resource assessment,site investigations, the environmental
impact assessments and other studies.
Based on those results, we have
deeply studied the project plan,
including the detailed design andconstruction work methods, and havecompleted various screening process
and permit procedures, including Wind
Farm Certification, with the construction
Ceremony
work commenced on 13 March 2023. Groundbreaking
Mr. Kazuhisa Takeuchi, Mayor of Kitakyushu City (Left)

Mr. Yutaka Mizumachi, President of Hibiki Wind Energy (Right)*Photo courtesy of Vestas Wind Systems A/SWTG ImageConstruction Schedule

Project Area Map（image）

Construction works at site have been started in March 2023, followed by offshore works for WTG Foundations,
Submarine Cables and WTG Installations, in that order, with the operation scheduled to commence in FY2025.
In addition to offshore construction works, WTG Pre-assembly works and Substation construction works will beAinoshima
carried out onshore.
※The diagram below is a planned schedule as of June 2023, subject to change due to future construction progress and other factors.

2022
12Shirasu Lighthouse2023
345Start
Construction

6789 10 11 12 1

23Port Ar

45ea of62024

2025

7Kita8kyu9 10 11 12 1shu

2345678(Fiscal Year)

9 10 11 12 1

2

3

Operation Start(within FY2025)

WTG Foundation Works
Subsea Cable Laying Works

Pre-assembly Yard Preparation・WTG Pre-assembly WorksWTG Installation
Commissioning
Substation Construction Works
O&M Port Construction

Offshore Works

Onshore Works

Construction Scheme

Shirashima Museum
O&M Base PortPre-assembly Yard
Hibiki WindCo.,
EnergyOff andice the construction companies in charge
Project will be carried out jointly by Hibiki Wind EnergyLtd.
of each responsible fields.
The construction work will be carried out with Safety as the first priority, leading the project to be
familiarized for the local community.
Kitakyushu Eco-Town Center: approx. 2,700ha
WTG SupplyProject area
Foundation
Supply&&Installation Works
Installation Works
Vestas Japan

Penta Ocean &Nippon SteelEngineering JV

Designated area for offshore wind farm project under the public tender

O&M Base PortCTVOnshore Electrical*Google Earth/Data SIO, NOAA, U.S. Navy, NGA, GEBCO/image@2023 TerraMetrics
Construction
OperationWorks
J-POWER
HytechPenta Ocean& Wakachiku JVTokyo Kisen

O&M (Operation & Maintenance)

CTV(Crew Transfer Vessel)

About Hibiki Wind Energy
Hibiki Wind Energy Co., Ltd. is a developing and operating company comprising five
shareholding companies: Kyuden Mirai Energy Co., Inc., Electric Power Development
Co., Ltd. (J-Power), Hokutaku Co., Ltd., Saibu Gas Co., Ltd. and Kyudenko Corporation.
We develop, operate and maintain the wind farm towards the “Collaborative
Development of the Offshore Wind Farm with the Local Community and Stakeholders”.

KyudenMirai
J-POWER

Hokutaku

Shareholders and Composition Ratio
30% (Kyuden Mirai Energy Co.,Inc.),40% (Electric Power Development Co., Ltd.),
10% (Hokutaku Co., Ltd.), 10% (Saibu Gas Co., Ltd.), 10% (Kyudenko Corporation)

Saibu Gas

KyudenkoOutline of Construction Activities
1. Foundation Installation
Foundations are installed with large-type working vessels. Steel piles are installed into the seabed groundby pile-driving vessel or SEP vessel, and following that the jacket foundations, fabricated at onshore factory,
are transported offshore by a hoist vessel (floating crane vessel) for installation at site.

2. Subsea Cable Laying
Specialized work vessels for cable laying are used to install subsea cables.

3. WTG Installation
After the completion of pre-assembly of the towers and other main components at the Pre-assembly yard,
the WTG components are transported offshore by SEP vessel and then the towers, nacelles and windturbines are installed on each foundation.

①Pile Installation (image)②Jacket Installation (image)③WTG Component Loadout (image)④WTG Installation (image)

4. Substation Construction (Onshore works)
Substations and other equipment are installed which are utilized to transmit the electricity generated to thepower grid of the Kyushu Electric Power Transmission and Distribution Co., Inc.

5. O&M Base Port Construction Works
After the commencement of the operation of the wind farm, inspections and repair works of the offshore
wind farm equipment will be carried out with CTV (Crew Transfer Vessel).
An O&M base port (maintenance base port) will be constructed near the wind farm as a base site for CTVs.

SEP(Jack-up)
VesselSEP (Self Elevating Platform) vessels are workablebarges with four legs that land on the seabed in a stable
position. These specialized vessels are indispensable foroffshore wind farm construction.

SEP(Jack-up)
Vessel Image

Hibikinada could be a world-leading wind power industrial town
The constant flow of persons and commodities for offshore wind business will be created through logistic activities ofwind turbine and its component at the based port facilities developed by the Government and the Kitakyushu City.

Image as a general hub port
for offshore wind turbines

Offshore wind farm-Site investigation-Construction, Operation, Maintenanceand Decommissioning

Back yard

Storage Site for Wind Turbine Components-Base for operation andmaintenance-Manufacturing of turbine
foundations-Temporary storage of components andturbine assembly-Pre-shipping inspection

Quay side for wind turbine installation vessels-Receiving and loading of turbine components-Loading of turbine foundations
Source of information: “Guidebook for Green Energy Port Hibiki” published by the Kitakyushu City with some modification and addition made by our company

Hibiki Wind Energy Initiatives for co-creation and co-prosperity with local communities.
We are working on the wind power business co-creation with local proactive companies to develop the Hibikinada
area toward a hub place for Japan's offshore wind power in the future.
With a view to securing human resources for the offshore wind industry, we also actively cooperate with local
educational institutions and organize seminars for citizens.
Communication activities to local businesses / local industry●Exhibition and PR at Ecotechno, a leading wind industry seminar in Kitakyushu●Local businesses consultations (matching with manufacturers, etc.)●Communication with fishermen

Public relationship with citizens●Organizing offshore wind farm seminars●Briefing sessions for citizens on offshore wind farm projects

Exhibition at Ecotechno

Our Missions for Tomorrow
Offshore wind power is an indispensable renewable energy source due to its great potential for achieving Carbon Neutral by2050. When completed, this wind farm will become the largest offshore wind farm in Japan, with attracting a great attention
from the public and also making a significant contribution to the Green Energy Port Hibiki project promoted by Kitakyushu City.
Through Hibikinada, we will create a new landscape of offshore wind farm as a new challenge to carbon neutral and also as anew initiative for regional friendships.

Hibiki Wind Energy Co., Ltd.

〒808-0021
1-122-16, Hibikimachi, Wakamatsu-ku, Kitakyushu, Japan
Phone / +81-93-981-4362 FAX / +81-93-981-4738
revised：2023.10