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 Service Procedure | NKRE-SP-0003 Edition: April 2023 |
|
Guidelines on the Use of Certification Documents and Symbols | NKRE-AP-0001 | |
Guidelines on Filings of Complaints and Objections | NKRE-AP-0002 | |
Application (Initial) | RE-081-03 | PDF Word |
Application (Change) | RE-081-04 | PDF Word |
Request for Quotation - Onshore Wins Power Plant & Initial - |
RE-081-05 | PDF Word |
Registrations of Wind Farm Certification Onshore Wind Power Plant Offshore Wind Power Plant |
RE-081-02 | |
Application for Plan Approval Status Service (NK-PASS) 〈Renewable Energy〉 | PASS-APP-E | PDF Word |
Guidelines
NKRE-GL-WFC01 Wind Farm Certification, Onshore Wind Power Plant Edition
Related Documents
RD-2101 ClassNK Wind Turbine Certification and Related Services [August 2021 public version]
News
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