India’s rapid shift to E20 fuel blending is reducing crude oil dependence and boosting rural incomes, but concerns over vehicle compatibility, surplus ethanol capacity, water stress, and future E30-E100 readiness remain key challenges for the country’s biofuel transition.
According to a new report by Infomerics Ratings, India’s ethanol blending programme has achieved the E20 target ahead of the revised 2025-26 deadline, but the country now faces new challenges around surplus production capacity, vehicle compatibility, water usage, and long-term sustainability.
The report, titled “E20 And Beyond: The Expanding Role of India’s Ethanol Blended Petrol” by Dr. Manoranjan Sharma, said India’s ethanol procurement increased sharply from 67.4 crore litres in 2014-15 to 707.4 crore litres in 2023-24, helping blending levels rise from 2.33% to 14.6%.
India currently requires nearly 1,016 crore litres of ethanol annually to sustain E20 blending, while installed production capacity is projected to touch 24 billion litres in the near future, potentially creating surplus capacity beyond present demand.
The report highlighted that the government has already notified fuel standards for higher blends such as E22, E25, E27 and E30, signalling preparations for the next phase of ethanol adoption.
The study also noted that India is exploring E100 fuel in the long term, though large-scale deployment would require flex-fuel vehicles and major infrastructure upgrades.
According to the report, ethanol blending has helped India save more than ₹1.44 lakh crore in foreign exchange over the last 11 years, while also reducing carbon emissions and boosting farmer incomes.
However, the report warned that higher ethanol blending could create concerns related to lower fuel efficiency, older vehicle compatibility, water-intensive sugarcane cultivation, and food security risks linked to grain-based ethanol production.
The study suggested that India should gradually transition towards second-generation biofuels using agricultural residues, municipal waste, and non-food biomass to ensure long-term sustainability of the ethanol ecosystem.