India’s clean energy transition is entering a more complex phase, where capacity targets are now being weighed against supply chain resilience and national security considerations. The Union power ministry is examining a proposal that could require wind and solar projects supplying electricity to the grid, as well as standalone energy storage projects, to deploy battery storage systems with a minimum 50 percent share of domestically manufactured components, according to a report by Mint.

The discussions come against the backdrop of India’s ambitious target to install 47 GW of battery energy storage capacity by 2032, a scale that implies investments of nearly Rs 3.5 trillion. Battery storage is increasingly seen as the backbone of renewable integration, enabling the grid to manage intermittency from solar and wind power. However, the rapid expansion has also exposed a heavy reliance on imported equipment, particularly from China, across key power electronics and system components.

Until recently, India’s renewable energy policy focus was dominated by aggressive capacity addition, cost reduction, and competitive tariffs. Storage was treated largely as an enabling add-on, supported through pilots, tenders, and limited viability gap funding. As storage volumes rise, policymakers are now confronting second-order risks: concentration of imports, cyber vulnerabilities, and limited domestic manufacturing depth beyond battery cells.

The power ministry has already experimented with localisation in a calibrated manner. Storage projects supported under the viability gap funding scheme currently carry a 20 percent local content requirement. The new proposal, if adopted, would represent a material escalation from that baseline, signalling that storage is being treated as strategic infrastructure rather than just another clean energy component.

Under the framework being examined, at least half of the value of battery energy storage systems would need to come from domestically produced components. These may include battery management systems, energy management software, inverters, containers, and related balance-of-system equipment. Importantly, battery cells themselves are expected to be excluded, reflecting India’s current manufacturing constraints and the longer gestation required to build cell-scale capacity.

Officials are also considering the introduction of an approved manufacturers and models list for battery storage systems, mirroring the existing framework used in the solar sector. Such a move would effectively combine localisation with vendor whitelisting, tightening both quality control and supply chain oversight.

The ministry has held consultations with state-owned and private developers to assess readiness and timelines. Participants reportedly included NTPC, the Solar Energy Corporation of India, JSW Energy, Engie, and Avaada Electro. Government officials have emphasised that deliberations remain at an early stage and that no final decision has been taken, suggesting scope for phased or differentiated implementation.

The push for localisation is not solely about industrial policy. Grid security has emerged as a central concern. Officials have flagged cyber risks associated with imported power electronics, particularly from China, at a time when the national grid reportedly faces dozens of cyber-attack attempts daily. In this context, domestic manufacturing and approved vendor lists are being framed as extensions of national security policy, not just economic self-reliance.

At the same time, there are clear cost implications. Non-cell components targeted under localisation norms account for roughly 35 percent of the cost of large-scale battery systems. Mandating domestic sourcing could raise upfront costs, potentially feeding into higher power tariffs, especially during the early years when local supply chains lack scale efficiencies.

Former power secretary Alok Kumar has cautioned that overly aggressive mandates could slow adoption and increase tariffs in the short term. Other analysts, however, argue that gradual implementation with adequate lead time could limit cost pressures while giving domestic manufacturers visibility on future demand.

The fact that battery cells are excluded at this stage suggests a pragmatic approach. It recognises the reality that India’s cell manufacturing ecosystem is still nascent, even as production-linked incentives attempt to attract large investments. The proposal, as described, appears designed to strengthen areas where domestic capability can realistically be scaled in the near to medium term.

For Indian power developers, the proposal introduces a new variable into project planning. While large players with integrated procurement capabilities may adapt more easily, smaller developers could face margin pressure if costs rise faster than tariffs adjust.

For the domestic electrical and power electronics industry, the move could unlock a multi-decade demand opportunity, anchored by storage deployment at grid scale. Over time, this may also encourage technology transfer, standardisation, and deeper value addition within India.

From a macro perspective, the policy signals that clean energy is no longer viewed in isolation from strategic autonomy. As detailed by Mint, the storage localisation debate reflects a broader recalibration where energy transition goals are being aligned with security and resilience priorities.

Key risks include cost inflation feeding into higher power prices, uneven industry readiness, and execution delays if domestic suppliers fail to scale in time. Policy uncertainty during consultations may also temporarily stall investment decisions in large storage-linked renewable projects.