In pursuance of Sub rule 1 of Rule 15 of the Bureau of Indian Standards Rules,

## Report on Amendment to Indian Standard IS 16270 : 2023 **1. Executive Summary:** This report analyzes an amendment to Indian Standard IS 16270: 2023, concerning Secondary Cells and Batteries for Solar Photovoltaic Application. Based on the provided notification from the Bureau of Indian Standards (BIS), Amendment No. 1 was established on June 9, 2025, and remains in force until December 8, 2025. The amendment focuses on updating the standard related to general requirements and methods of test for these batteries. This report details the changes and their potential implications for manufacturers and users within the solar photovoltaic industry. **2. Introduction:** This report aims to provide a concise overview and analysis of the Amendment No. 1 to Indian Standard IS 16270: 2023, as notified by the Bureau of Indian Standards. The analysis is based solely on the provided text and focuses on the key provisions, implementation aspects, and likely outcomes of the amendment. **3. Policy Overview:** * **Original Policy:** IS 16270 : 2023, Secondary Cells and Batteries for Solar Photovoltaic Application General Requirements and Methods of Test First Revision * **Core Objective(s):** The original standard likely aimed to establish general requirements and testing methods for secondary cells and batteries used in solar photovoltaic applications. This promotes standardization and quality control within the industry. **4. Background and Rationale:** This document represents an amendment to an existing standard. The rationale for the amendment likely stems from the need to update the standard (IS 16270: 2023) based on evolving technology, industry best practices, or to address previously unforeseen issues in the application of the original standard. The amendment provides a window of approximately six months, from June 9, 2025 to December 8, 2025, during which the standard with the amendment is in force, suggesting a need to implement this change relatively quickly. **5. Key Provisions / Changes:** The key change introduced by this document is **Amendment No. 1** to the IS 16270 : 2023. * **Specific Part of Original Policy Changed:** The text does not provide specifics on which section of the original standard this amendment changes. It only states that it *is* an amendment to the whole standard. * **New Rule/Provision:** Amendment No. 1. * **Difference/Effect of Change:** The effect of this change is to update the requirements and methods of testing specified in the initial standard. It seems the changes, whatever they are, are intended to remain valid for a limited time-window, before another update is applied. This suggests the change is important, but perhaps not 'final' or fully tested in its effectiveness. **6. Target Audience and Stakeholders:** The primary target audience and stakeholders affected by this amendment include: * Manufacturers of secondary cells and batteries for solar photovoltaic applications. * Testing laboratories involved in assessing the compliance of these batteries with Indian Standards. * Solar photovoltaic system integrators and installers. * Consumers and end-users of solar photovoltaic systems. **7. Implementation Aspects (Inferred):** * **Responsible agency/bodies mentioned:** Bureau of Indian Standards (BIS) is responsible for establishing and notifying the amendment. * **Timelines or procedures specified:** The amendment is effective from June 9, 2025, and will remain in force until December 8, 2025. The text does not explicitly detail implementation procedures, but it can be inferred that manufacturers and testing laboratories should adopt the amended standard within this timeframe. BIS will likely be responsible for monitoring compliance. **8. Expected Outcomes / Impact of Changes:** The likely intended outcome of this amendment is to: * Improve the quality and reliability of secondary cells and batteries used in solar photovoltaic applications. * Ensure that testing methods accurately reflect current technological advancements and industry practices. * Enhance consumer confidence in solar photovoltaic systems by ensuring that their components meet updated standards. * Ensure components are tested for a limited period of time, so that components can be quickly updated again with a newer version, after the initial testing phase. **9. Conclusion:** Amendment No. 1 to Indian Standard IS 16270: 2023 represents an update to the regulations governing secondary cells and batteries for solar photovoltaic applications. This amendment, effective from June 9, 2025, to December 8, 2025, underscores the BIS's commitment to maintaining relevant and up-to-date standards within the renewable energy sector. Understanding and adhering to this amendment is crucial for stakeholders to ensure the quality, performance, and safety of solar photovoltaic systems deployed in India. However, without the text of the amendment itself, the specific impacts remain unclear, requiring stakeholders to consult the official amendment document for detailed information.

Key Entities Referenced