India's ethanol sector has entered a new phase where capacity utilisation — not fresh capacity creation — will define growth through FY2030–31, according to a report released on Wednesday, 23 September by Brickwork Ratings. Under a base-case E25 blending scenario, domestic ethanol demand could reach 17.9 billion litres by FY31, a figure the country's existing infrastructure can largely absorb.

Current Capacity and Utilisation Outlook

India's installed distillation capacity stands at 18.25 billion litres, which, according to the Brickwork Ratings report, is already sufficient to meet demand under both base and bear scenarios. The base case of 17.9 billion litres implies utilisation of approximately 98 per cent of existing capacity — leaving almost no headroom before new investment becomes necessary.

Under the bear case, where blending stays at E20, demand is estimated at 14.3 billion litres, implying utilisation of around 78 per cent. This scenario suggests the sector can comfortably serve near-term requirements without significant incremental capital expenditure.

When Fresh Investment May Be Triggered

The bull case tells a different story. If blending advances to E30, demand could reach 21.5 billion litres by FY31 — roughly 18 per cent above current installed capacity. The report notes that an E30 trajectory would mark the inflection point at which the sector transitions from sweating existing assets to requiring greenfield or brownfield expansion.

Brickwork Ratings expects the pace of blending policy progression to remain the key determinant of incremental capital expenditure and overall sector growth, given how sharply demand projections diverge across the three scenarios.

Feedstock Shift: Grain Overtakes Sugar

A structural realignment in feedstock sourcing is reshaping the sector's cost profile. Grain-based routes accounted for 72 per cent of ESY26 Cycle 1 allocations, compared with just 28 per cent for sugar-based routes — a stark reversal of the 55:45 sugar-to-grain mix envisaged in India's 2021 ethanol roadmap.

Maize alone accounted for 45.7 per cent of allocations. However, the shift has come at a cost: EBITDA margins at grain-based distilleries have declined from 9.2 per cent in FY21 to 6.7 per cent in FY25, according to the report, highlighting rising feedstock-cost pressure on profitability.

Credit Outlook and Policy Backing

Despite margin compression, Brickwork Ratings maintained a stable credit outlook for the ethanol sector. The agency cited three supportive pillars: government-administered offtake and pricing, the achievement of the E20 blending mandate, and a sanctioned credit base of over ₹42,000 crore extended to the sector by banks and financial institutions as of October 2025.

'With E20 largely achieved and substantial capacity already in place, the sector's focus is expected to shift towards higher utilisation, feedstock optimisation and monetisation of existing assets,' the report said. Fresh distillation capacity, it added, is likely to become relevant only if blending moves towards E30.

As India's blending policy decisions over the next few years will determine whether the sector invests or consolidates, the government's stance on an E25 or E30 mandate is expected to be closely watched by industry and lenders alike.