Amendment to ‘Standard Operating Procedure (SOP) for Approved List of Models and Manufacturers – Wind (ALMM-Wind) and Approved List of Models and Manufacturers – Wind Turbine Components (ALMM-WTC)’

No. 233/1/2018-Wind Government of India Minist11 of New and Rcncwahle Energy 1 Wind Energy Division Atal Akshaya Urja Hhawan, Lodi Road, New Delhi-110003

Dated: OP' December, 2025 OFFICE MEMORANDUM

Subject: Amendment to 'Standard Operating Procedure (SOP) for Approved List of Models and Manufacturers - Wind (ALMM-Wind) and Approved List of Models and Manufacturers -Wind Turbine Components (ALMM-WTC)' -reg.

The undersigned is directed to refer Standard Operating Procedure (SOP) for Approved List of Models and Manufacturers - Wind (ALMM-Wind) and Approved List of Models and Manufacturers -Wind Turbine Components (ALMM-WTC) issued by this Ministry OM dated

29.10.2025. In this regard, Clause 8.1 para titled 'Performance Efficiency and Safety Issues' of the above cited SOP is amended as below;

Existing Clause Amended Clause The committee will deliberate on the turbine's performance, ensuring the power curve has been The committee will deliberate on the tested and certified by an accredited laboratory in turbine ·s performance, ensuring the accordance with IEC 61400-12-1 and that all power curve has been tested and certified supporting performance data aligns with regulatory by an accredited laboratory m expectations including ·perfonnance m accordance with IEC 61400-12-1 and representative geographical. -~:. c,onditions.

that all supporting perfonnance data Manufacturers accordingly are ericouraged to aligns with regulatory expectations carry out the prototype testing in India. including performance in representative geographical conditions. Mandatory The requirement of prototype testing in India prototype testing within India. will be mandatory after two years from the date of issuance of this amendment subject to a review.

2. The other clauses of the SOP are unchanged. .., This issues with the approval of competent authority .

J. ~/A~ _,,,,~~o~'Y (Rishikesh Vaishnav) Scientist 'C' To All concerned

Copy to: i) Sr. PPS to Secretary, MNRE ii) PPS to Joint Secretary (Wind), MNRE iii) PA to Director (PKO), MNRE