Balancing Ethanol Production With Food And Water Security
Source: Indian Express
GS III: Agriculture, Environment, Energy, Food Security, Biofuels
Overview
- India’s ethanol programme is increasingly relying on maize alongside rice and sugar-based feedstocks, driven by differences in cost, availability and ethanol yield.
- Greater diversion of maize towards ethanol could compete with its use as livestock and poultry feed, with possible implications for food and feed prices.
- Feedstock choices have significant implications for water consumption, making regional water availability an important consideration in expanding ethanol production.
- Achieving E20 targets requires a sustainable mix of feedstocks, improved agricultural productivity and greater use of advanced biofuels without compromising food security, feed availability and environmental sustainability.
Why in the News?
The rising price of sugar and India’s growing emphasis on ethanol blending have brought renewed attention to the availability, cost and sustainability of ethanol feedstocks.
News in Brief
- India’s ethanol programme is witnessing a shift in feedstock preferences, with maize emerging as an important source alongside rice and sugar-based products.
- The increasing diversion of maize towards ethanol could affect its availability for poultry and cattle feed, creating linkages between biofuel demand and food prices.
- The choice of feedstock also has resource implications, particularly because crop-based ethanol production requires substantial amounts of water.
- With E20 blending increasing ethanol demand, India faces the challenge of expanding production while managing the competing requirements of fuel, food, feed and natural resources.
Maize is becoming an important ethanol feedstock
- Ethanol in India is produced from maize, rice and sugarcane-derivedproducts.
- Around 45% of ethanol comes from maize, while another 20-25% comes from rice and the remaining share from sugar-based feedstocks.
- Maize is increasingly preferred because of its relatively favorable economic and ethanol yield.
- One tonne of maize can produce around 380–400 litres of ethanol.
- Rice produces around 370–385 litres per tonne.
- Sugarcane yields around 220–280 litres per tonne.
Maize faces competition from the feed sector
- Maize is relatively cheaper than rice and sugar-based feedstocks, making it attractive for ethanol producers.
- However, it is also an important raw material for the poultry and livestock industry.
- Around 60% of maize demand is linked to cattle and poultry feed.
- If more maize is diverted towards ethanol, the resulting pressure on supplies could raise feed costs and eventually affect the prices of milk, meat and poultry products.
Water use is a major consideration
- Ethanol production from different crops has significant differences in water comsumption.
- Maize requires about 500–900 litres of water per kg, while the requirement can rise to around 1,500–2,500 litres for sugarcane and 2,000–3,500 litres for rice.
- While maize may have a lower water requirement than rice and sugarcane, expanding its cultivation for ethanol can still place additional pressure on agricultural water resources, particularly in water-stressed regions.
Rising ethanol demand could create new policy challenges
- The move towards E20 blending is expected to increase demand for ethanol feedstocks.
- This raises questions about whether existing agricultural production can meet the additional requirement without affecting food and feed availability.
- Maize productivity could become an important concern if ethanol demand rises.
- However, the use of GM maize seeds for cultivation is not permitted in India.
- Therefore, increasing maize production would have to rely on existing varieties unless regulatory policy changes.
- One possible approach could involve allowing GM seeds specifically to enhance production for ethanol, although this raises wider questions concerning biosafety, regulation, food security, and agricultural policy.
Surplus Rice can not be a permanent solution
- The Food Corporation of India (FCI) has previously diverted excess rice stocks for ethanol production.
- However, depending on surplus stocks cannot automatically be treated as a long-term strategy for ethanol feedstock, because future availability of rice, domestic requirements and its prices may change.
- This makes a stable and sustainable feedstock strategy important for the long-term expansion of ethanol production.
Ethanol and Water Security
- The choice of feedstock has implications for India’s water security.
- If rice and sugarcane-based ethanol production expands substantially, their relatively high water requirements could intensify pressure on water resources.
- At the same time, maize expansion also needs to consider regional water availability and competing agricultural requirements.
Ethanol policy and digital infrastructure has wider resource implications
- The concern is not limited to ethanol blending.
- India’s growing Data centre infrastrucutre are heavy consumers of electricity and water.
- As both digital infrastructure and biofuel production expand, efficient management of India’s energy and water resources will become increasingly important.
Way Forward and Conclusion
India’s ethanol programme can strengthen energy security and reduce dependence on imported fossil fuels, but its long-term success will depend on the availability and sustainability of feedstocks. A balanced approach is needed to ensure that the expansion of ethanol does not compromise food security, livestock feed availability or water resources.
Promoting efficient crops, advanced biofuel technologies and region-specific feedstock planning can help India pursue its blending targets while maintaining agricultural and environmental sustainability.
UPSC Prelims and Mains Practice Question
Consider the following statements regarding ethanol production in India:
- Maize, rice and sugarcane-derived products can be used as feedstocks for ethanol production.
- Maize has competing uses as livestock and poultry feed.
- Increasing ethanol production from agricultural crops has no implications for water resources.
Which of the statements given above is/are correct?
A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3
Answer: A. 1 and 2 only
Mains Practice Question
Q) India’s ethanol-blending programme can contribute to energy security, but increasing dependence on agricultural feedstocks may create trade-offs involving food security, livestock feed and water resources. Discuss. (250 words)
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