MNRE clarifies ALMM rules for solar cell tenders and BESS-linked projects

The Ministry of New and Renewable Energy (MNRE) has issued two updates clarifying the implementation of the Approved List of Models and Manufacturers (ALMM) for solar photovoltaic (PV) projects, with new guidance on tender compliance timelines and the treatment of battery storage-linked solar plants under the framework.

On 28 July 2025, MNRE amended its earlier order dated 9 December 2024 to ease compliance for developers participating in government-backed tenders. The ministry confirmed that ALMM obligations for solar PV cells will become mandatory only one month after the official list for cells is published. The publication is still pending. However, projects commissioned from 1 June 2026 onwards must comply with the ALMM requirement for cells as already notified.

This change affects projects awarded by government agencies, including those issued under Section 63 of the Electricity Act, 2003. It is intended to give developers sufficient lead time to prepare bids that align with evolving procurement conditions. The MNRE said this clarification would also help address operational concerns raised by the renewable energy industry over meeting ALMM conditions for solar PV cells.

India introduced the ALMM mechanism to ensure the quality and reliability of solar components while encouraging domestic manufacturing. The list for solar PV modules has been in effect since 10 April 2021, while the list for cells will take effect from 1 June 2026. The ministry estimates that domestic capacity now stands at 91 GW for modules and 27 GW for cells.

In a separate Office Memorandum, MNRE clarified the ALMM applicability for solar PV projects used exclusively to charge Battery Energy Storage Systems (BESS). According to the ministry, these projects are not considered “behind-the-meter” installations solely for captive use under the terms of its earlier memorandum dated 7 October 2022. As a result, such solar plants do not automatically qualify for exemption from ALMM requirements for modules.

The applicability of ALMM norms for solar PV cells in these cases will depend on the status of the associated BESS project. If the BESS is exempt from ALMM provisions under the 9 December 2024 memorandum, the connected solar plant will also be exempt. If not, the plant must adhere to the ALMM standards for solar PV cells.

Both clarifications aim to bring regulatory certainty as India ramps up its domestic solar manufacturing base and integrates battery storage into its renewable energy strategy. The ministry has encouraged stakeholders to refer to its website for ongoing updates on ALMM guidelines.