E20 Ethanol Blending: Key Facts
- Target: India aims for 20% ethanol blending in petrol (E20) by 2025–26, requiring about 10.11 billion litres of ethanol. Distillery capacity has expanded to roughly 18–20 billion litres.
- Economic benefit: The programme has reportedly saved about ₹2 lakh crore in foreign exchange by reducing crude-oil imports. Around 10 billion litres of ethanol could replace roughly 32 million tonnes of crude imports.
- Feedstock: Ethanol is mainly produced from sugarcane, molasses and foodgrains such as FCI rice. Current sugar stocks appear stable, but poor monsoons or crop shortages could create pressure on food and ethanol supplies.
- Vehicle compatibility: Newer BS6 Phase 2 vehicles (post-April 2023) are designed for E20. Older vehicles were generally designed for E5/E10, raising concerns about long-term compatibility and component wear.
- Efficiency debate: IIT Kanpur's research cited in the source indicates less than 5% efficiency loss, while mechanics and vehicle users have reported component-related concerns in older vehicles.
- Pricing: OMCs reportedly procure ethanol at around ₹70/litre, versus petrol retailing around ₹105/litre. However, different taxation and cost structures make it difficult to establish exactly how much E20 affects pump prices.
Bottom line: E20 is designed to reduce India's dependence on imported crude and keep more money within the domestic economy, but feedstock security, older-vehicle compatibility and the actual impact on petrol prices remain important challenges.
