Ethanol Blending Strategy And Flex-Fuel Transition

India’s ethanol policy push and rationale:

• Blending expansion goal: Proposal to increase ethanol blending from 20% to 30%
• Flex-fuel promotion: Incentivising vehicles capable of running on 100% hydrous alcohol (E100)
• Fuel infrastructure shift: Need for separate dispensing units for E30 and E100 fuels
• Strategic objective: Reduce vulnerability arising from imported energy dependence

Taxation and regulatory challenges:

• GST asymmetry: Ethanol (5% GST) under GST while petrol remains outside under excise and VAT
• Tax treatment issue: Ethanol-blended petrol and pure petrol taxed identically
• Reform requirement: Inclusion of all ethanol-blended fuels (E20, E30, E100) under GST

Progress in India’s ethanol blending programme:

• Supply expansion: Ethanol supply increased from 38 crore litres (1.6%) in 2013-14 to 1,039 crore litres (19.2%) in 2024-25
• Feedstock diversification: Transition from C-heavy molasses to B-heavy molasses and direct sugarcane juice/syrup since 2018-19
• Policy incentives: Higher prices offered for ethanol from alternative feedstocks to offset sugar revenue loss
• Grain inclusion: Introduction of ethanol production from rice, maize and damaged foodgrains with separate pricing

Ethanol production process and feedstock mix:

• Production mechanism: Fermentation of sugars by yeast followed by distillation and dehydration to 99.99% alcohol
• Feedstock difference: Molasses/cane juice contain sucrose, while grains require starch breakdown into simple sugars
• Grain dominance: Over 69% (718 crore litres) of ethanol supply in 2024-25 from grains, mainly maize and rice
• Resource utilisation: Use of surplus FCI rice and damaged grains

Future strategy and constraints:

• Import dependence reality: India imports about 90% of crude oil requirement
• Technological limitation: Internal combustion engines will persist; EV substitution has limits
• Agricultural advantage: Surplus sugarcane, rice and maize support higher ethanol blending (E30, E100)
• Capacity sufficiency: Ethanol production capacity exceeds 1,800 crore litres annually
• Policy gap: Need for mandate on flex-fuel vehicles and conversion kits for existing vehicles