ClassNK Renewable Energy

Renewable Energy Image

In order to support the industry's growing needs for renewable energy technologies, ClassNK provides certification and a third-party verification services of diverse renewable energy facilities. ClassNK is contributing towards the creation of low carbon societies both in Japan and abroad through these services.

What's New
Oct. 18, 2021
Renewable Energy Portal and its related pages completely updated.
Jul. 30, 2021
Issuance Notification: Guidelines Wind Farm Certification - Onshore wind farm edition
Jun. 30, 2021
Renewal of Registrations of Wind Farm Certification

Address and Contact Details

Renewables and Environment Department
4-7 Kioi-cho, Chiyoda-ku, Tokyo 102-8567, Japan
Tel: +81-3-5226-2032 Fax: +81-3-5226-2060 email: