Ethanol's Promise and Peril

India's aggressive push for ethanol blending in petrol, reaching a 20% mix ahead of schedule, has been praised as a major step toward energy security and reducing crude oil imports. The initiative has reportedly saved over ₹1.7 lakh crore in foreign exchange and replaced more than 289 lakh metric tonnes of crude oil. This policy positions India as a leading ethanol producer, comparable to the US and Brazil. However, this success story is increasingly complicated by the program's state-controlled structure and its widespread, often negative, economic and environmental side effects. The drive for energy independence through biofuels is generating significant fiscal risks and distorting agricultural markets.

Shifting Crops, Distorting Markets

The program's reliance on different crops for ethanol has led to instability. Initially focused on sugarcane, policy changes have increasingly favored maize and even surplus rice due to availability and price incentives, creating market imbalances. Between FY2022 and FY2025, maize production and planting areas grew significantly, spurred by higher procurement prices for maize-based ethanol. This expansion has directly displaced crops like pulses and oilseeds, which are vital parts of India's food supply. The Economic Survey 2025-26 warns that this imbalance risks increasing reliance on edible oil imports and making domestic food prices more volatile during supply shocks, highlighting a conflict between energy and food security.

Water Strain and Resource Drain

Concerns over water usage remain a significant issue. While some industry reports suggest sugarcane is more water-efficient than often thought, the total water needed for feedstock cultivation, especially rice, is substantial. Rice-based ethanol production is estimated to require about 10,790 liters of water per liter of ethanol, far more than maize or sugarcane. Critically, much of this water comes from irrigation, heavily dependent on groundwater, in areas already facing water shortages. Years of agricultural policies, including subsidized electricity for irrigation and minimum support prices (MSP) for water-intensive crops like rice and wheat, have encouraged excessive groundwater extraction. Studies show these subsidies lead to a 30% overproduction of water-intensive crops and a sharp drop in groundwater levels, potentially pushing key agricultural states towards desertification. Relying on rain-fed maize also adds vulnerability to climate changes.

Consumer Costs and Vehicle Worries

Consumers are facing real costs from the ethanol blending changes. Although the government has mandated E20-compatible vehicles since April 2023, many older vehicles, manufactured before 2023, may struggle with higher ethanol blends. Drivers are reporting lower fuel efficiency, increased engine wear, and higher maintenance expenses. There are also concerns about vehicle warranties and insurance validity for non-compatible cars. Ethanol has less energy than petrol, leading to reduced mileage. This may require retrofitting or dual-fuel systems, which are not always available or affordable, especially for lower-income drivers.

Policy Hurdles and Fiscal Risks

The program's structure itself poses considerable risk. India's ethanol system involves many ministries and departments with overlapping responsibilities. Prices, crop allocation, and purchase volumes are largely set by government controls, not market signals, leading to distortions and financial burdens. Unlike Brazil's market-driven approach, where price signals guide how crops are used for fuel or food, India's regulated system is prone to policy changes and inefficiencies. The Economic Survey has voiced concerns about the program's impact on food security, and a World Bank study warned of groundwater depletion risks. Additionally, international trade pressures, particularly from the US seeking market access for its ethanol, complicate India's policy decisions. The absence of a clear, predictable framework for the link between agriculture, energy, and water poses a major risk to long-term stability.

Path Forward: Market Signals Needed

As India aims to gradually increase ethanol blending toward E25 and beyond, a thorough review of the current policy framework is necessary. Experts suggest a clearer crop hierarchy and a move toward market-based pricing are crucial for sustainability and efficiency. Brazil's experience with flexible-fuel vehicles offers a potential model for managing evolving fuel policies without creating widespread compatibility issues for consumers. Without a more predictable and market-aligned structure, India risks expending significant resources for limited and potentially unsustainable results.