"E20 Petrol Rollout Raises Food-Fuel Trade-off and Fleet Compatibility Concerns"
E20
petrol blend containing 20% ethanol and 80% petrol by volume, India's current national blending standard.
EBP Programme
Ethanol Blended Petrol Programme (2003), mandating OMCs to procure and blend ethanol with petrol.
India's Ethanol Blended Petrol (EBP) Programme, launched in 2003 under the Ministry of Petroleum and Natural Gas, was designed to address two structural vulnerabilities simultaneously: the country's dependence on crude oil imports (approximately 85% of requirements) and the chronic financial distress of the sugarcane sector. The overarching policy framework is the National Policy on Biofuels, first notified in 2009 and substantially revised in 2018, which set a target of E20 (20% ethanol blending in petrol) — originally by 2030, later advanced to 2025. Ethanol procurement prices are fixed by the Cabinet Committee on Economic Affairs (CCEA), providing price certainty to distilleries and sugar mills and incentivising investment in blending infrastructure.
Feedstocks have expanded progressively over the programme's life: from sugarcane-derived molasses to damaged foodgrains, surplus rice, and increasingly maize. The Pradhan Mantri JI-VAN Yojana supports second-generation (2G) ethanol production from agricultural residue — a more sustainable but technologically demanding pathway. Brazil's Proálcool programme (1975), rooted in a 1931 blending mandate, remains the global benchmark for a managed, graded biofuel transition — a depth of institutional commitment and consumer-choice infrastructure that India has not yet replicated.
The EBP Programme operates through Oil Marketing Companies (OMCs), which procure ethanol from sugar mills and distilleries at CCEA-notified prices and blend it with petrol before retail distribution. The energy content of ethanol is roughly two-thirds that of petrol, meaning E20 carries an energy penalty of approximately 6–7% per litre — not the 30% figure circulating in public discourse. Crucially, independent testing by the Automotive Research Association of India (ARAI), the Petroleum Conservation Research Association, and Indian Oil Corporation, as well as the US Oak Ridge National Laboratory (which ran 86 vehicles for nearly 10 million kilometres on blends up to E20), found no increased engine wear in vehicles not specifically rated for E20.
However, a genuine technical exception exists: India has an estimated 75–80 million older two-wheelers built before BS4 emission norms that use carburettors rather than fuel-injection systems. A carburettor cannot sense the additional oxygen in an ethanol-rich blend and adjust the fuel-air mixture accordingly, causing the engine to run lean and hot. Separately, older rubber seals not rated for ethanol degrade on contact with the fuel. …
Consider the following materials:
1.Agricultural residues
2.Corn grain
3.Wastewater treatment sludge
4.Wood mill waste
Which of the above can be used as feedstock for producing Sustainable Aviation Fuel?
Consider the following statements :
1.The quantity of imported edible oils is more than the domestic production of edible oils in the last five years.
2.The Government does not impose any customs duty on all the imported edible oils as a special case.
Which of the statements given above is/are correct?
With reference to India's Ethanol Blended Petrol (EBP) Programme, consider the following statements:
1.Ethanol procurement prices are fixed by the Cabinet Committee on Economic Affairs (CCEA).
2.Maize currently supplies more than half of India's ethanol feedstock.
3.The National Policy on Biofuels was first notified in 2018.
Which of the statements given above is/are correct?
Which of the following best explains why pre-BS4 carburettor-based two-wheelers face a specific compatibility problem with E20 petrol, unlike modern fuel-injected vehicles?
Consider the following statements regarding the food-versus-fuel trade-off in India's ethanol blending programme:
1.India's annual crude oil import bill is approximately six to seven times larger than its edible oil import bill.
2.Maize cultivation for ethanol competes with oilseed crops for the same agricultural land.
3.Distillery by-products from maize ethanol production strengthen soybean meal prices by providing an alternative protein source.
Which of the statements given above is/are correct?
In the context of evaluating ethanol's environmental impact, the distinction between 'green water' and 'blue water' is important because:
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