ClassNK Renewable Energy
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
- Apr. 23, 2025
- Registrations of Wind Turbine Certification updated (as of April 23, 2025)
- Mar. 31, 2025
- Registrations of Type Certification for Wind Farm updated (as of March 31, 2025)
- Feb. 14, 2025
- Registrations of Type Certification for Small Wind Turbine updated (as of February 14, 2025)
- Sep. 1, 2024
- [NKRE-SP-0003] Wind Farm Certification Service Procedure (September 2024 version) is updated.
[NKRE-GL-WFC01] Wind Farm Certification, Onshore Wind Power Plant Edition (September 2024 version) is updated - May. 27, 2024
- RD2101_02 ClassNK Wind Turbine Certification and Related Services [May 2024 Website public version] is updated.
- Feb. 15, 2024
- Notice of The JAB Accreditation Symbol Renewal
NKRE-AP-0001 "Guidelines on the Use of Certification Documents and Symbols“ is updated.
Address and Contact Details
NIPPON KAIJI KYOKAI
Renewable Energy Department
4-7 Kioi-cho, Chiyoda-ku, Tokyo 102-8567, JapanTel: +81-3-5226-2032 Fax: +81-3-5226-2060 email: re@classnk.or.jp