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 contribe services.

uting towards the creation of low carbon societies both in Japan and abroad through thes

What's New

Jun. 30, 2021
Renewal of Registrations of Wind Farm Certification
Jun. 19, 2019
Notification of lifting temporary suspension of type certification for “CF20JAPAN”

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: