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On August 20, 2026, India’s Ministry of New and Renewable Energy (MNRE) issued an office memorandum mandating all wind‑turbine OEMs listed under the Approved List of Models and Manufacturers (ALMM) to submit compliance status and supporting documentation for data localisation and cybersecurity by August 31, 2026.
This marks the first dedicated compliance filing and verification exercise launched by MNRE, following the July 31, 2025 ALMM amendment which incorporated mandatory requirements for in‑India R&D centres, domestic hosting of data centres and servers, and a ban on cross‑border transmission of real‑time operational data.
(Image source: MNRE official website)
Policy Evolution: Hardened Mandates from RLMM to ALMM
On July 31, 2025, MNRE formally renamed the Revised List of Models and Manufacturers (RLMM) to the Approved List of Models and Manufacturers (ALMM), alongside revised procedures for model inclusion and updates. Beyond a simple name change, this reform converted previously preferential localisation requirements into binding market‑access criteria:
Critical components including blades, towers, gearboxes, generators, main bearings, yaw bearings and pitch bearings must be sourced from the Approved List of Wind Turbine Components (ALMM‑WTC).
Wind‑turbine data centres and servers shall be physically located within India; all relevant data must be stored and maintained on domestic soil.
Real‑time operational wind‑turbine data shall not be transmitted outside India; operational control may only be executed via domestic‑based facilities.
OEMs are required to establish R&D centres in India.
In June 2026, MNRE further clarified via amendments to the Wind Turbine Prototype Installation Guidelines that prototype models must obtain ALMM listing prior to on‑site installation, blocking non‑compliant technologies and supply chains at the entry point. Shortly afterwards on June 15, India launched the WT‑MARUT wind‑turbine supply‑chain management portal, developed under MNRE oversight with support from the Indian Wind Turbine Manufacturers Association (IWTMA). One core objective of this platform is to ensure industry data is hosted securely within India. This digital infrastructure works in tandem with the cybersecurity requirements laid out in the August 20 memorandum to form a combined policy‑and‑tool regulatory framework.
Three Core Compliance Filing Requirements under the August 20 Memorandum
Per the MNRE office memorandum, all ALMM‑listed OEMs must submit both hard‑copy and digital Compliance Declaration Forms covering three key cybersecurity measures with detailed information and supporting evidence:
1. Data Localisation
Manufacturers must prove that wind‑turbine‑related data centres and servers are physically situated in India, with all associated data stored and maintained domestically. Submission materials shall include:
Names and physical locations of local data servers
Compliance supporting documents such as data‑centre lease agreements, server asset inventories and data‑storage architecture documentation
2. Ban on Overseas Data Transfer and Domestic‑Only Operational Control
Real‑time operational data shall not be transmitted outside India. Wind‑turbine operational control can only be performed using facilities located in India. Required submissions:
Site location, staffing and equipment inventory for local control centres
Technical and administrative safeguards deployed to prevent unauthorised offshore equipment access, including network isolation, access control and outbound traffic monitoring
This clause delivers the most immediate impact for OEMs relying on overseas remote operation and maintenance, group‑wide global SCADA platforms, or centralised data analytics run from headquarters in China or Europe. The long‑standing “single global control centre” model is no longer permitted for operations within India.
3. Domestic Indian R&D Centre
OEMs are obligated to set up R&D centres in India within 12 months from the issuance date of the August 20 memorandum. Submissions shall cover:
Full particulars of local R&D facilities
Staffing profiles including headcount and specialisation of on‑site R&D personnel
In practical terms, any OEM aiming for sustained market presence in India under ALMM rules must establish substantive local R&D capabilities by August 20, 2027, rather than operating nominal shell entities.
(Image source: MNRE official website)
MNRE Verification: Random Sampling plus On‑Site Inspections
The memorandum specifies that after receiving submissions, MNRE will conduct random document sampling and physical on‑site verification. Paper‑based compliance submissions constitute only the initial step. Regulators may physically inspect the existence of data centres, control hubs and R&D premises, alongside verification of on‑site staffing levels.
Manufacturers failing to submit documents by the deadline or failing verification risk suspension or full removal of their turbine models from the ALMM register. Such sanctions directly disqualify them from bidding and supplying equipment for new Indian wind‑power projects.
Practical Business Impacts for Different OEM Groups
Domestic Indian OEMs
Local players including Suzlon, Adani and Inox Wind already host data infrastructure, operational control and R&D functions domestically. For these firms, the August 31 filing is largely an administrative exercise. In the longer term, as foreign players complete mandatory localisation, policy‑driven home‑market advantages will gradually diminish. Competition will increasingly centre on product efficiency, reliability and full‑lifecycle costs.
Multinational Wind‑Turbine OEMs
Most multinationals operate manufacturing bases inside India, yet many still depend on regional or global hubs for R&D, data processing and control functions. The memorandum forces a strategic decision within a 12‑month window: expand substantive Indian‑based R&D capabilities, or maintain existing set‑ups and accept the risk of ALMM delisting. Given India’s record 6.1 GW of new wind installations in FY2026 (+46 % year‑on‑year), no major global OEM is prepared to exit one of the world’s fastest‑growing wind markets.
ALMM Transformed: From Model Whitelist to End‑to‑End Localised Governance
MNRE’s August 20 memorandum signals a fundamental shift in India’s wind‑sector regulatory logic. ALMM has evolved beyond a simple approved‑model whitelist into a comprehensive regulatory instrument enforcing data sovereignty, operational‑control sovereignty and technological sovereignty for wind‑turbine suppliers.
Over roughly 13 months, Indian authorities built a closed‑loop governance framework for the domestic wind industry: binding localisation rules in July 2025; the WT‑MARUT digital portal launched in June 2026; and mandatory compliance filing plus inspections triggered by the August 20 memo. August 31, 2026 represents the first major compliance test under this system.
For every OEM on the ALMM roster, the available preparation window is narrow. The ability to produce verifiable evidence that withstands MNRE random checks and on‑site audits will determine whether companies can remain active participants or are forced out of India’s wind‑power market.