For years, India’s ethanol push was projected as one of the country’s biggest clean-energy success stories. The goal was to cut crude oil imports, support farmers, boost sugar mills and reduce vulnerability to global oil shocks.
The government pushed aggressively. The industry expanded even faster. Distilleries came up rapidly across states. Sugar companies diverted more cane toward ethanol production. Grain-based plants scaled up as India accelerated its ethanol blending programme and .
India got there faster than expected.
Now the industry is starting to worry about something else: whether the country may have already built more ethanol capacity than it currently needs.
A recent industry outlook report by Infomerics Ratings estimated that India could soon have nearly 24 billion litres of ethanol production capacity against annual demand of roughly 11-12 billion litres under the current E20 blending regime.
That is nearly double the current blending requirement.
The report itself warned that the industry could face “suboptimal capacity utilisation”, potentially hurting the financial viability of recently commissioned distilleries.
Which may also explain why, even before India has fully settled into the E20 era, the conversation inside the industry has already started shifting toward E30, E85 and even E100.
India’s ethanol blending programme accelerated sharply after the government advanced the E20 target from 2030 to 2025-26.
The policy transformed ethanol from a relatively small blending exercise into one of India’s biggest clean-energy projects.
According to the report, ethanol procurement rose from 67.4 crore litres in ethanol supply year (ESY) 2014-15 to 707.4 crore litres in ESY 2023-24, while blending levels climbed from 2.33% to 14.6%.
The government backed the expansion with fixed procurement prices, interest-subvention schemes and long-term procurement agreements through oil marketing companies (OMCs).
The larger geopolitical backdrop also helped drive the push.
India imports nearly 85% of its crude oil requirements and remains heavily exposed to global oil price swings and supply disruptions. Ethanol blending was .
The industry responded accordingly.
Sugar companies invested heavily in distilleries. Grain-based ethanol production surged. New plants came up rapidly across Maharashtra, Karnataka, Gujarat and Madhya Pradesh.
The entire ethanol boom was built on one expectation: blending targets would keep rising and oil companies would keep buying more ethanol.
But even as blending levels rose, another trend quietly started appearing in the numbers.
Blending levels rose to 18.36% in 2024-25. But ethanol procurement itself slowed sharply to 391 crore litres up to March 2025, down from 707.4 crore litres in ESY 2023-24.
The report also pointed to growing reluctance among oil marketing companies in procuring ethanol.
According to the report, OMCs had initially committed to lifting about 700 crore litres of ethanol from sugar-based producers and another 125 crore litres from grain-based distillers. But procurement slowed after concerns emerged around sugar availability and storage constraints.
That is where the anxiety inside the industry starts becoming visible.
Distilleries expanded aggressively assuming demand from OMCs would continue rising. Sugar companies invested heavily in new capacity. Grain-based ethanol producers scaled up rapidly.
If procurement slows while fresh capacity keeps coming online, some of those investments could suddenly start looking very expensive.
Which is partly why the industry has already started looking beyond E20.
India has already started laying the groundwork for higher ethanol blends.
The Bureau of Indian Standards recently notified specifications for E22, E25, E27 and E30 petrol variants as the government expanded its biofuel roadmap beyond E20.
The report also said India is actively exploring E100 fuel as part of a broader push toward energy self-reliance.
But before that, the more .
Policymakers and automakers are increasingly viewing E85 — a blend containing 85% ethanol and 15% petrol — as a more commercially practical transition step before any eventual move toward E100.
Unlike E100, which requires a fully dedicated engine ecosystem, E85 is seen as more scalable through flex-fuel vehicles.
That may partly explain why the industry continues building capacity far beyond current E20 requirements.
In many ways, India’s ethanol industry no longer appears to be building only for E20. It is already building for whatever comes next.
Still, moving beyond E20 may prove far more complicated than achieving it.
Unlike Brazil, which gradually expanded ethanol blending over decades while simultaneously building flex-fuel vehicle infrastructure, India compressed much of its transition from E10 to E20 into roughly three years.
That rapid shift has already triggered concerns around mileage, compatibility and costs.
The report acknowledged that E20 may reduce mileage in certain vehicles and create compatibility issues for older models not originally designed for higher ethanol blends.
According to the report, certain Hyundai vehicles may require replacement of fuel-system components, with total upgrade costs potentially reaching Rs 35,000.
There is another issue too.
Ethanol has lower energy density than petrol, meaning vehicles may travel fewer kilometres per litre even though consumers continue paying nearly similar retail fuel prices.
Perhaps the most striking contradiction in India’s ethanol story is that crude oil import dependence has continued rising despite the rapid increase in blending.
According to the report, when blending levels stood at around 5% in 2018-19, India’s crude import dependence was 83.8%.
By 2025-26, despite blending levels nearing 20%, import dependence had risen to 89%.
India’s fuel consumption, in other words, has risen faster than ethanol blending itself.
That does not mean the ethanol programme has failed.
The report said ethanol blending has saved more than Rs 1.44 lakh crore in foreign exchange over the last decade, substituted 245 lakh metric tonnes of crude oil and helped reduce carbon emissions.
But it does complicate the larger narrative around ethanol as a long-term solution to India’s oil dependence.
There are environmental questions as well.
Much of India’s ethanol still comes from sugarcane, one of the country’s most water-intensive crops. The report estimated that producing one litre of ethanol from sugarcane .
India spent years worrying about whether it could produce enough ethanol. Now the industry is starting to worry about something else entirely: what if it produced too much of it?