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MNRE Issues Fresh Clarification on Prototype Wind Turbines, Makes ALMM Approval Mandatory for Commercial Deployment

The Ministry of New and Renewable Energy (MNRE) has clarified that prototype wind turbine models can only be deployed for commercial electricity generation after being included in the Approved List of Models and Manufacturers (ALMM) – Wind List. The clarification aims to remove ambiguity surrounding the commercial use of prototype turbines while ensuring that only certified and approved wind turbine models are deployed in grid-connected projects across the country.

The clarification was issued through an Office Memorandum in reference to the ministry's amendment to the Revised Guidelines for Installation of Prototype Wind Turbine Models, notified on June 25, 2026. According to the ministry, prototype turbines intended for research, validation and performance assessment may continue to be installed and commissioned before ALMM approval. However, such installations must be used solely for testing purposes and cannot be commercially operated until the corresponding turbine model is officially included in the ALMM Wind List.

MNRE further stated that prototype testing activities will continue to be governed by Clause 5 of the Revised Guidelines for Installation of Prototype Wind Turbine Models, originally issued on June 12, 2025. These provisions allow manufacturers and developers to validate new turbine designs, assess performance under Indian operating conditions, and complete technical evaluations required before seeking commercial approval.

The clarification establishes a clear distinction between prototype testing and commercial deployment, providing greater regulatory certainty for wind turbine manufacturers, project developers, investors and state implementing agencies. By requiring ALMM enlistment before commercial use, the ministry seeks to ensure that only wind turbine models meeting prescribed technical, quality and performance standards are installed in utility-scale projects, thereby improving project reliability and safeguarding long-term asset performance.

The ALMM (Wind) framework serves as a quality assurance mechanism for India's wind energy sector by maintaining an approved list of eligible wind turbine models and manufacturers that comply with MNRE's technical requirements. The policy is intended to promote the deployment of reliable, efficient and high-performance wind technologies while supporting domestic manufacturing, strengthening supply chain standards, and enhancing investor confidence in renewable energy projects.

The clarification comes at a time when India is accelerating the expansion of its wind power capacity to meet its clean energy objectives. Wind energy remains a key pillar of the country's strategy to achieve 500 GW of non-fossil fuel electricity capacity by 2030, alongside large-scale solar, hydropower and energy storage deployment. A transparent regulatory framework governing prototype testing and commercial deployment is expected to encourage technological innovation while ensuring that new turbine models undergo rigorous validation before entering the commercial market.

By reinforcing the requirement for ALMM approval prior to commercial deployment, MNRE has provided greater clarity to industry stakeholders, balancing the need to foster innovation in wind turbine technology with the importance of maintaining quality, safety and performance standards across India's rapidly growing renewable energy sector.