What is biofuel? Discuss the biofuel policy in India.
Biofuel is renewable fuel derived from organic biomass materials such as plants, agricultural residues, algae, or animal waste. Unlike fossil fuels formed over millions of years, biofuels can be produced from contemporary biological sources, making them part of the current carbon cycle and potentially carbon-neutral.
| Generation | Biofuel Type | Feedstock | Production Process |
|---|---|---|---|
| 1st Generation (Conventional) | Bioethanol | Sugarcane, corn, wheat, sugar beet | Fermentation of sugars/starches |
| Biodiesel | Vegetable oils, animal fats, used cooking oil | Transesterification | |
| 2nd Generation (Advanced) | Cellulosic Ethanol | Agricultural residue, wood, grass | Enzymatic hydrolysis + fermentation |
| Advanced Biodiesel | Non-edible oilseeds (jatropha), waste oils | Transesterification, hydroprocessing | |
| 3rd Generation | Algal Biofuel | Microalgae, macroalgae | Lipid extraction, processing |
| 4th Generation | Synthetic Biofuel | Genetically modified organisms | Metabolic engineering (R&D stage) |
| - | Biogas/Bio-CNG | Organic waste, animal dung, sewage | Anaerobic digestion |
Ethanol Blending Target: E20 (20% ethanol in petrol) by 2025-26 (advanced from original 2030 target)
Biodiesel Blending Target: 5% biodiesel in diesel by 2030
Current Achievement (2024): ~12% ethanol blending achieved (E12)
| Category | Feedstocks Allowed | Purpose |
|---|---|---|
| Basic (1G) | Sugarcane juice, sugar, molasses, grains | Ethanol production |
| Advanced (2G) | Agricultural residue (rice straw, wheat straw, corn cobs), forest residue, industrial waste | Cellulosic ethanol |
| Biodiesel | Non-edible oilseeds, used cooking oil, animal fats, acid oils | Biodiesel production |
| Category | Benefits |
|---|---|
| Economic |
- Foreign exchange savings (~Rs. 30,000 crore/year at E20) - Reduced import bill for crude oil - Additional income for farmers (sugarcane, grains) - Rural employment generation |
| Environmental |
- Reduced GHG emissions (lifecycle CO2 savings) - Cleaner combustion (less particulate matter) - Reduced stubble burning (2G ethanol uses crop residue) - Waste management improvement |
| Energy Security |
- Reduced dependence on imported fossil fuels - Diversified energy supply - Indigenous resource utilization |
| Social |
- Better prices for agricultural produce - Rural infrastructure development - Health benefits from cleaner air |
India's National Biofuel Policy represents a comprehensive approach to energy security, environmental sustainability, and rural development. By promoting ethanol blending, biodiesel production, and bio-CNG, the policy addresses multiple objectives simultaneously. The ambitious E20 target by 2025-26 requires continued investment in production capacity, technology development, and supply chain infrastructure. Success will significantly reduce India's oil import dependence, create economic opportunities for farmers, and contribute to climate goals. The focus on 2nd generation biofuels from agricultural waste adds additional environmental benefits by addressing stubble burning.