Problem with ethanol blending isn’t sugar — it’s reliance on grains; the way forward (Op-ed by Harish Damodaran)

Why in the News

India’s ethanol blended petrol (EBP) programme, an arrangement under which oil marketing companies blend ethanol into petrol to progressively raise the blending ratio, was designed primarily to help sugar mills earn an additional revenue stream so they could pay cane farmers on time. For the current supply year ending October 2026, grain based feedstock accounts for 759.8 crore litres, or 72.5 percent, of the 1,048.3 crore litres of ethanol allocated among distilleries, against 288.5 crore litres, or 27.5 percent, from sugarcane based feedstock. What began as a sugar-support programme has become a grain-dependent one, and the article argues this reversal, not sugar diversion, is the programme’s real problem.

What is the Ethanol Blended Petrol (EBP) programme?

1. About: The EBP programme requires oil marketing companies to blend ethanol into petrol at a rising target ratio, currently 20 percent under the E20 standard, to cut crude oil imports and support farm incomes.
2. Feedstock: Ethanol can be produced from sugarcane derived molasses and juice, or from cereal grains such as maize and rice, through milling, starch extraction, fermentation, distillation and dehydration to 99.9 percent pure alcohol.
3. Original design: The programme was conceived to give sugar mills a secondary revenue stream so they could clear cane payment dues to farmers, and was later extended to maize farmers as an additional demand source.

How did the feedstock mix shift from sugarcane to grain?

1. The molasses-only phase, till 2017-18: All ethanol supplied to oil marketing companies came from C-heavy molasses, the final byproduct of cane juice processing left after mills had recovered all economically extractable sugar.
2. The B-heavy and direct-juice phase, from 2018-19: Mills began producing ethanol from intermediate B-heavy molasses and directly from cane juice or syrup, incentivised by higher government-set prices for ethanol from these routes, which let mills divert sucrose before it was even crystallised into sugar. Ethanol supplies to oil marketing companies rose from 38 crore litres in 2013-14 to 190 crore litres in 2018-19, and blending rose from 1.6 percent to 4.9 percent over the same period.
3. The grain takeover, 2018-19 onward: Standalone grain-based distilleries, running on maize or on surplus and damaged rice sourced from the Food Corporation of India (FCI) or the open market, expanded independently of the sugar season. By 2023-24, grain-based feedstock supplied 402 crore litres, or 59.7 percent, of the 673 crore litre total that helped achieve 14.6 percent average blending, a reversal the article calls the tail wagging the dog.
4. Current supply year, 2025-26: Of the 1,048.3 crore litres allocated to hit the E20 target, 759.8 crore litres, or 72.5 percent, is from grains and only 288.5 crore litres, or 27.5 percent, is from sugarcane-based feedstock, against a backdrop of September-ending sugar stocks projected at a 17-year low.

Why is rice, not maize, now the likely mainstay feedstock?

1. Maize supply risk: El Nino conditions are expected to persist through the first half of next year, raising doubts about maize availability for ethanol in 2026-27 even as sugarcane diversion is curtailed.
2. Rising reliance on FCI rice: The government allocated 5.2 million tonnes of surplus FCI rice to ethanol distilleries for 2025-26, raised to 7.2 million tonnes in July; at 450 to 460 litres of ethanol per tonne, that yields only 325 to 330 crore litres, well short of the roughly 1,050 crore litres needed to sustain E20.
3. Rice is water-intensive and underpriced for this use: FCI rice is sold to ethanol distilleries at Rs 23.2 per kg, with a reserve price of Rs 21 per kg for fully broken grains, against a retail market price of Rs 40 per kg for normal rice and Rs 30 per kg for broken rice, and rice is a water-guzzling crop to be diverting toward fuel at scale.
4. Distillery capacity outpaces demand: Distillers have built an aggregate ethanol production capacity of nearly 2,000 crore litres, against 421 crore litres in 2014 and current annual offtake of 1,050 crore litres, and it is this installed capacity, not farmer need, that is driving the push for even higher blending standards such as E22, E25, E27 and E30.

What effect has the programme had on maize farmers, and what is at risk if grain reliance deepens further?

1. Maize price gains: With ethanol demand added to poultry and livestock feed demand, wholesale maize prices in India rose from a Rs 13.8 to Rs 17.8 per kg range in 2021 to a Rs 22.1 to Rs 24.5 range in 2024, benefiting maize growers the way the programme once benefited cane farmers.
2. A rice-driven repeat of the same trade-off: Sustaining current blending targets without sugar or adequate maize would require earmarking still more FCI rice, a shift the article argues is difficult to justify given rice’s water footprint and its underpriced diversion from the food security stock.

Way Forward

1. Discourage standalone grain distilleries reliant on FCI rice: The government should end this diversion route and push distillers toward less water-intensive grains such as bajra and jowar, which carry 58 to 62 percent recoverable starch and can yield 380 to 400 litres of ethanol per tonne, comparable to maize, letting millet farmers gain the same price benefit maize growers have seen.
2. Stop chasing blending targets ahead of schedule: The EBP programme was already succeeding at 10 to 15 percent blending, and the article notes the government’s own chief economic adviser has suggested reverting to the E10 standard, an argument the piece endorses as pragmatic rather than a retreat.

Back2Basics: What is the E10/E20 standard?

1. E10 and E20 denote the percentage of ethanol blended into petrol, so E20 petrol contains 20 percent ethanol against 80 percent petrol by volume.
2. India crossed the E10 blending average in 2021-22 and reached the E20 national average in the current 2025-26 supply year, years ahead of the original 2030 target set for E20.
3. Government notified fuel standards now extend beyond E20 to E22, E25, E27 and E30, reflecting distillery capacity built well beyond current ethanol offtake.

Matching Previous Year Question

PrelimsPYQ.csv: “In the context of alternative sources of energy, ethanol as a viable bio-fuel can be obtained from:” (2009, Microtheme: Biofertilizers/Fuels, Subject: Environment)