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
May 25, 2023
Registrations of Type Certification for Small Wind Turbine updated (as of May 24, 2023)
Apr. 10, 2023
Registration of Wind Farm Certification updated (as of Mar. 31, 2023)
Feb 22, 2023
Registrations of Type Certification for Wind Turbine updated (as of February 22, 2023)

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: