MArine Test Site for
Renewable-energy Asia

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Demonstration Field

Marine energy specifically represents, among energies available in the natural world, energy created by power over the sea, on the sea, or under the sea, such as “wind power on the sea,” “power created by vertical movement of waves,” and “power created by tidal flows.”

Waters off the coast of Kabeshima Island in Karatsu City are located in the Genkainada Sea, northwest of Saga Prefecture.
It is roughly about 129° 52’ east longitude and 33° 34’ north latitude.


The demonstration field is an area of water where the performance or durability of power generator using marine energy is tested in actual experiments. Experiments are conducted to test whether a machine developed to tap energy from wind on the sea or tidal flows can produce energy efficiently. Now that an era of producing energy from the sea is expected to come, the outcome of visiting this experiment station will lead you to a step into such a future.


Access to Kabeshima Island, Yobukocho, the location closest to the demonstration field


   • About 2 hours by car from the Kyushu-Saga International Airport
   • About 2 hours by car from the Fukuoka Airport
   • 1 hour 15 minutes by subway or JR Chikuhi Line from JR Hakata Station to JR Karatsu Station
    and about 40 minutes by car from JR Karatsu Station

Visible from the landside

About 1 km to 2 km offshore from Suginohara Ranch, the northern point of Kabeshima Island
About 2 km to 3 km offshore from Hato Peninsula

* Source: Survey data of Saga Prefecture (2012)

As Karatsu area faces the Sea of Japan,
it is characterized by intense wind conditions.
Many windmills are set up on the land area along the coast.


See the official website of the government of Saga Prefecture for details.

How to Use

It is necessary to go through the procedures according to Saga Prefecture Demonstration Field Guideline (hereinafter the Guideline. See * for details.).


Please contact the Secretariat when you intend to use it.


* Established by the council organized by Saga Prefecture as a demonstration field operation and management guide , this Guideline is a compilation of local rules and use procedures intended to ensure the smooth use of the demonstration field, commercialize marine recyclable energy, and realize revitalization of local community, including coexistence with fishery and creation of new industries .

Demonstration FieldThis section explains the location of the demonstration field, water areas available for use, surrounding natural conditions, and an overview of social conditions.
Use ConditionsThis section provides conditions for use of the demonstration field.
Consideration of Local CommunityThis section specifies things to be considered of the local community to ensure the smooth use of the field in harmony with local community.
Necessity of Safety MeasuresIt presents an outline and procedures of safety measures to be taken for appropriate use of the waters.
Outline of the Service and FeesThis section explains the services to be provided, the fee system for the services, and the period of use.
Response to Study ToursIt explains how study tours are received.
ContactIt explains the contacts for each activity.
Procedure of Application for Use It shows the process of application.
History of Guideline DevelopmentIt outlines the history behind development of the Guideline.

Those who wish to use the demonstration field to test their equipment are requested to fill in the application form for use of the demonstration field and submit it to MATSRA.


[Download the application form for use of Saga Prefecture’s demonstration field.]

When we receive an application form, we conduct an examination and a review based on the Guideline.

When the application is assessed as qualified by MATSRA’s examination, MATSRA sends a notice of acceptance to the applicant.


[Download the notice of acceptance for use of Saga Prefecture’s demonstration field.]

A notice of acceptance for use of the demonstration field will be sent to an accepted applicant.
The applicant business operator and MATSRA will enter into an agreement on the use of the demonstration field.

[Download the agreement on use of Saga Prefecture’s demonstration field.]

It takes about two months.


State of demonstration experiment

* Even through the field is shown to be available, the use procedure
 by other organization may be ongoing.
 Please contact the Secretariat for detailed information.