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What is 100% ethanol blending? | Explained

The article explains 100% ethanol blending as a policy goal to reduce fossil fuel dependence and emissions. It highlights that achieving this target sustainably requires scaling up second-generation (2G) ethanol from agricultural residues, avoiding over-reliance on sugarcane-based first-generation ethanol. This is critical for India's energy security, net-zero commitments, and Sustainable Aviation Fuel (SAF) production. For exams, it links to National Biofuel Policy, Ethanol Blended Petrol Programme, and climate action under UNFCCC.

Source: The Hindu. This summary and analysis are AI-written from that report and are not individually fact-checked — confirm names, dates and figures with the source before you rely on them.

Revision structure

Monthly events and exam calendar context
Static GK and one-liner notes
Quiz and mock-test revision path

Key points

Exam-ready takeaways

100% ethanol blending target aims to replace fossil fuels entirely with ethanol in petrol

First-generation ethanol from sugarcane molasses cannot sustainably meet 100% blending without stressing water and land resources

Second-generation (2G) ethanol from agricultural residues (rice straw, wheat straw, bagasse) is essential for scalable, sustainable supply

Sustainable Aviation Fuel (SAF) production requires 2G ethanol to meet aviation decarbonisation goals under CORSIA

National Biofuel Policy 2018 targets 20% ethanol blending by 2025-26 (advanced from 2030); 100% remains long-term aspirational goal

How to study

Turn news into exam marks

Revise monthly events by exam family instead of reading random updates.

Pair one-liners with mock tests so mistakes become the next revision list.

Note which exams each story matters for, and revise it again in the week before that exam.