Wind Farm Certification
Wind Farm Certification is covered as part of the project certification process and is carried out to ensure conformity with the safety regulations of the Electricity Business Act for ”Construction Plan Notification”. ClassNK evaluates the environmental conditions of the proposed installation site and assesses whether the strength and safety of the wind turbines and their support structures are suitable for the installation environment based on Japan-specific requirements.
Unauthorized use prohibited

ClassNK publishes the following documents for wind farm certification.
Documentation | Document No. | Document type |
---|---|---|
Wind Farm Certification Procedures | RE-SP-0003 Edition April 2020 |
|
Guidelines on the Use of Certification Documents and Symbols | RE-4 | |
Guidelines on Filings of Complaints and Objections | RE-5 | |
Application for Wind Farm Certification (Initial) | RE-081-03 | PDF Word |
Application for Wind Farm Certification (Change) | RE-081-04 | PDF Word |
Registrations of Wind Farm Certification Onshore Wind Power Plant Offshore Wind Power Plant |
RE-081-02 | |
Address and Contact Details
NIPPON KAIJI KYOKAI
Renewables and Environment 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