**Policy Summary: Amendment to the Revised List of Models and Manufacturers (RLMM) Procedure for Wind Turbines**
On July 31, 2025, the Ministry of New and Renewable Energy (MNRE) issued an amendment to the Revised List of Models and Manufacturers (RLMM) procedure for wind turbines. This amendment renames the RLMM as the Approved List of Models and Manufacturers Wind (ALMM Wind). The original RLMM, established via Office Memorandum dated November 1, 2018, aimed to ensure the quality and reliability of wind turbines, protect consumer interests, and bolster energy security while promoting domestic manufacturing, which currently boasts a 20 GW annual capacity.
Key changes introduced by the amendment include:
* **Mandatory Component Sourcing:** The amendment mandates that major wind turbine components – specifically blades, towers, gearboxes, generators, and special bearings (main, pitch, and yaw) – must be sourced from the forthcoming Approved List of Models and Manufacturers Wind Turbine Components (ALMM Wind Turbine Components). This list will be issued separately by the Ministry.
* **Cybersecurity Enhancement:** Wind turbine Research and Development (R&D) Centers, Data Centers, and/or Servers must be located within India to strengthen the cybersecurity ecosystem.
* **Exemptions:** Projects already bided, captive/open access/C&I/third-party sale projects commissioned within 18 months of the amendment's issuance are exempt. New wind turbine manufacturers or models are exempt from mandatory ALMM Wind Turbine Component usage for a total capacity of 800 MW over two years, incentivizing innovative technologies not yet available domestically.
This amendment aims to strengthen existing quality control mechanisms, improve cybersecurity, and promote domestic manufacturing within the wind energy sector.
The complete amendment, dated July 31, 2025, can be accessed at https://mnre.gov.in. Release ID: 2150874.
Key Entities Referenced
India: The country where the policy is applicable and where domestic wind manufacturing is promoted.
Ministry of New and Renewable Energy: The Indian government ministry responsible for new and renewable energy development.
RLMM: Revised List of Models and Manufacturers of Wind Turbines; a mechanism to ensure quality and reliability of wind turbines.
ALMM Wind: Approved List of Models and Manufacturers Wind, formerly RLMM, is intended to ensure quality and reliability of wind turbines.
ALMM Wind Turbine Components: Approved List of Models and Manufacturers Wind Turbine Components, a list that will be issued separately by the Ministry.
Wind Turbine RD Centre: Wind Turbine Research and Development Centre required to be located within India to strengthen cybersecurity.
Blade: Major wind turbine component that must be sourced from the ALMM Wind Turbine Components list.
Tower: Major wind turbine component that must be sourced from the ALMM Wind Turbine Components list.
Ministry of New and Renewable Energy
MNRE issues Amendment to RLMM Procedure for
Wind Turbines Regarding mandatory Use of Major
Wind Turbine Components from Listed
Manufacturers
RLMM Renamed as ALMM (Wind); Amendment
aims to Strengthen Quality Control, Enhance
Cybersecurity, and Promote Domestic Wind
Manufacturing
Posted On: 31 JUL 2025 5:47PM by PIB Delhi
Ministry of New & Renewable Energy (MNRE) had earlier issued ‘Procedure to apply for inclusion of a
Wind Turbine Model in the Revised List of Models and Manufacturers of Wind Turbines (RLMM)’ vide OM
of even number dated 01.11.2018.
The RLMM was a mechanism to ensure quality and reliability of wind turbines installed in the country, for
protecting the consumer interests, while ensuring larger energy security of the country. The mechanism was
one of the enablers towards promoting domestic wind turbine manufacturing industry in the country, which
currently crossed the 20 GW annual manufacturing capacity.
Through this amendment, the RLMM has been renamed as Approved List of Models and Manufacturers
(Wind) i.e ALMM (Wind). Further, it is now mandatory for use of major wind turbine components such as
Blade, Tower, Gearbox, Generator and Special Bearings (Main, Pitch and Yaw Bearing) from the Approved
List of Models and Manufacturers (Wind Turbine Components) i.e ALMM (Wind Turbine Components) in
the manufacturing of listed wind turbines. The ALMM (Wind Turbine Components) list will be issued by the
Ministry separately. The amendment also includes mandatorily locating Wind Turbine R&D Centre, Data
Centre and/or Servers within India to strengthen the cybersecurity ecosystem.
This amendment will not be applicable on the already bided wind projects and Captive/Open
Access/C&I/Third Party sale projects to be commissioned within 18 months from date of issuance of the
amendment. In addition, new wind turbine manufacturer and / or new wind turbine models will be exempted
from mandatory use of components listed in ALMM (Wind Turbine Components) for a total capacity of 800
MW for a period of two years to promote the new technologies having new innovation & performance
efficiency not available indigenously.
This step will boost the existing quality control mechanism including the cyber security aspects along with
boosting domestic manufacturing in wind sector.
The aforesaid amendment dated 31.07.2025 can be accessed at https://mnre.gov.in or here
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Navin Sreejith \ Vivek Vishwash(Release ID: 2150874)