Budget 2026 Boosts Renewables: Solar Glass & Battery Storage Get Key Exemptions

Budget 2026 Targets Self-Reliance in Clean Energy

In the Union Budget 2026-27, Finance Minister Nirmala Sitharaman announced targeted fiscal measures to bolster India's domestic manufacturing capabilities in the renewable energy sector. The proposals directly address critical gaps in the solar and energy storage supply chains by extending customs duty exemptions on key capital goods and raw materials. These moves signal a strategic policy shift from focusing solely on capacity addition to building a resilient and self-reliant clean energy ecosystem.

Key Customs Duty Exemptions Explained

The centerpiece of the budget's renewable energy push is the relief provided through customs duties. The Finance Minister proposed two significant measures:

1. Battery Storage Manufacturing: The existing basic customs duty (BCD) exemption on capital goods and machinery imported for the manufacturing of lithium-ion cells for Battery Energy Storage Systems (BESS) has been extended. This lowers the initial capital expenditure for companies setting up cell manufacturing plants in India, a critical step in reducing the country's heavy reliance on imported battery cells.

2. Solar Glass Production: A new BCD exemption has been granted on the import of sodium antimonate. This chemical is a crucial raw material used in the production of high-transmission solar glass, which is essential for manufacturing solar panels.

These exemptions are designed to lower production costs for domestic manufacturers, making them more competitive against international suppliers and encouraging deeper value addition within India.

Addressing Critical Industry Demands

For years, India's renewable energy industry has urged the government to look beyond headline capacity numbers and address foundational issues like manufacturing independence and grid infrastructure. The sector has been heavily dependent on imports, particularly from China, for over 80% of its solar manufacturing equipment and components. The budget's focus on customs relief for battery and solar glass manufacturing is a direct response to these concerns.

Industry stakeholders had presented a comprehensive wishlist ahead of the budget, calling for Production-Linked Incentive (PLI) schemes covering the entire solar value chain, from polysilicon to modules, and similar support for the BESS ecosystem. While the budget did not announce new PLI schemes, the duty exemptions on capital goods serve a similar purpose by reducing the financial burden of setting up new manufacturing facilities.

Budget 2026 Announcement	Sector Impacted	Intended Outcome
BCD Exemption on Capital Goods for Li-ion Cell Mfg (Extended)	Battery Energy Storage Systems (BESS)	Lower capex for domestic cell manufacturing, reduce import reliance.
BCD Exemption on Sodium Antimonate	Solar Glass Manufacturing	Reduce raw material cost, improve competitiveness of domestic panels.
BCD Exemption on Capital Goods for Critical Minerals Processing	Mining & Mineral Processing	Secure domestic supply chain for critical inputs for clean energy.
Excise Duty Exclusion for Biogas in Blended CNG	Biofuels / City Gas Distribution	Promote cleaner fuels and support the waste-to-energy ecosystem.

Market Impact and Potential Beneficiaries

The budget announcements are expected to have a positive impact on companies involved in domestic manufacturing for the renewable sector. The extension of duty relief for Li-ion cell manufacturing is a significant tailwind for companies like Exide Industries and Amara Raja Energy & Mobility, which are investing heavily in setting up giga-factories.

Similarly, the exemption on sodium antimonate will directly benefit domestic solar glass manufacturers like Borosil Renewables, the sole producer in India. By lowering their input costs, the measure helps level the playing field against cheaper imports and supports the government's goal of using domestically sourced components in solar projects.

Investor sentiment towards the 'Make in India' theme within the clean energy space is likely to improve. These policy actions provide greater clarity and support for long-term capital investments in the manufacturing supply chain, moving the industry towards greater self-sufficiency.

A Strategic Shift Towards Manufacturing Depth

These targeted measures reflect a maturing policy approach. As India's installed renewable capacity crosses 250 GW, the challenge is no longer just about installation but about integration, reliability, and supply chain security. By incentivizing the production of critical components like battery cells and solar glass, the government is addressing key vulnerabilities.

This focus aligns with the broader industry consensus that the next phase of India's energy transition depends on strengthening the 'plumbing' of the system—building robust manufacturing capabilities, modernizing the grid, and scaling up energy storage. The customs duty exemptions are a crucial step in building that foundation.

Conclusion: A Foundation for Future Growth

Union Budget 2026 provides a clear and targeted boost to domestic manufacturing within the renewable energy sector. The customs duty exemptions for battery cell and solar glass production are practical steps that will lower costs, encourage investment, and reduce import dependency. While the industry's broader demands for grid infrastructure funding and GST rationalization on BESS remain, these fiscal incentives lay a stronger foundation for a self-reliant clean energy future. The focus will now be on how effectively the industry leverages this support to scale up domestic production and innovation.