Context
India has rapidly expanded E20 petrol, containing 20% ethanol, to reduce crude-oil imports, save foreign exchange and promote cleaner fuels. Concerns remain regarding feedstock sustainability, food security, water use and compatibility of older vehicles.
Explanation
- E20 is petrol blended with 20% ethanol, a renewable biofuel generally produced in India from sugarcane-based feedstocks, maize and surplus/damaged foodgrains.
- The Ethanol Blended Petrol (EBP) Programme aims to reduce crude-oil import dependence, foreign-exchange expenditure and certain vehicular emissions.
- India achieved around 20% ethanol blending in 2025, ahead of its original 2030 target.
- Ethanol has a higher octane number but lower energy density than petrol, potentially affecting mileage.
- Older E5/E10 vehicles may face compatibility concerns because ethanol is hygroscopic and can affect some rubber, plastic and fuel-system components.
- Large-scale ethanol production raises the food-versus-fuel, land-use and water-footprint debate, particularly for sugarcane.
- Second-generation (2G) ethanol from agricultural residues can improve long-term sustainability.
La Excellence IAS Academy, the best IAS coaching in Hyderabad, known for delivering quality content and conceptual clarity for UPSC 2026 preparation.
FOLLOW US ON:
◉ YouTube : https://www.youtube.com/@CivilsPrepTeam
◉ Facebook: https://www.facebook.com/LaExcellenceIAS
◉ Instagram: https://www.instagram.com/laexcellenceiasacademy/
GET IN TOUCH:
Contact us at info@laex.in, https://laex.in/contact-us/
or Call us @ +91 9052 29 2929, +91 9052 99 2929, +91 9154 24 2140
OUR BRANCHES:
Head Office: H No: 1-10-225A, Beside AEVA Fertility Center, Ashok Nagar Extension, VV Giri Nagar, Ashok Nagar, Hyderabad, 500020
Madhapur: Flat no: 301, survey no 58-60, Guttala begumpet Madhapur metro pillar: 1524, Rangareddy Hyderabad, Telangana 500081
Bangalore: Plot No: 99, 2nd floor, 80 Feet Road, Beside Poorvika Mobiles, Chandra Layout, Attiguppe, Near Vijaya Nagara, Bengaluru, 560040
E20 Ethanol Blending: Energy Security and Sustainability