Biogas and India’s Energy Security Architecture

Context

Escalating geopolitical tensions in West Asia have once again highlighted India’s vulnerability to external energy shocks. With nearly 90% of the country’s Liquefied Petroleum Gas (LPG) imports passing through the strategically significant Strait of Hormuz, any disruption in the region can threaten India’s fuel security. To reduce dependence on imported fossil fuels, the Government of India is accelerating the development of domestic renewable energy sources, particularly Biogas and Compressed Biogas (CBG), as part of its long-term energy security strategy.

Biogas and India’s Energy Security Architecture

About Biogas and India’s Energy Security Architecture

What is Biogas?

Biogas is a renewable and carbon-neutral gaseous fuel generated through the anaerobic decomposition of organic waste such as cattle dung, crop residues, food waste, municipal solid waste, and sewage. It mainly consists of methane (CH₄), carbon dioxide (CO₂), and trace gases. After purification and compression, biogas is converted into Compressed Biogas (CBG), which has properties similar to fossil-based Compressed Natural Gas (CNG) and can be used as a clean transport, industrial, and domestic fuel.

Key Facts and Statistics

Heavy Dependence on Imported Crude Oil

• India imports nearly 85% of its crude oil requirement, making the economy vulnerable to global price fluctuations and geopolitical disruptions.

Rising Demand for Biofuel Feedstock

• Prices of maize used for biofuel production recorded a Compound Annual Growth Rate (CAGR) of nearly 11.7% between FY22 and FY25, raising concerns about diversion of agricultural land from food production.

Financial Assistance under GOBARdhan

• The Government provides capital assistance of up to ₹50 lakh per district under the GOBARdhan Scheme for setting up community-based biogas plants.

Investment in Gas Infrastructure

• Around ₹994 crore has been allocated to develop pipeline infrastructure for integrating Compressed Biogas plants with the national gas distribution network.

How is Biogas Produced?

Anaerobic Digestion

Organic waste is decomposed by microorganisms in an oxygen-free environment, producing biogas as the primary output.

Hydrolysis and Acid Formation

Complex organic compounds such as proteins, carbohydrates, and fats are converted into simpler molecules and volatile fatty acids by bacteria.

Methane Generation

Methanogenic microorganisms convert volatile fatty acids and hydrogen into methane, which forms the energy-rich component of biogas.

Purification and Compression

The raw gas is purified by removing carbon dioxide, hydrogen sulphide, and moisture. The methane-rich gas is then compressed into Compressed Biogas (CBG), containing over 90% methane.

Importance of Biogas in India’s Energy Security

Reducing Dependence on Imported Fuels

CBG serves as a sustainable alternative to imported LPG, diesel, and CNG, helping India reduce exposure to international energy market disruptions.

Example:
Large-scale CBG projects supported under national renewable energy initiatives are supplying clean fuel for commercial transport.

Supporting Household Energy Needs

Purified biogas can be blended into Piped Natural Gas (PNG) networks, providing cleaner cooking fuel to households and reducing LPG dependence.

Example:
City Gas Distribution (CGD) networks are gradually incorporating CBG into their fuel supply.

Promoting Decentralized Rural Energy

Biogas plants provide electricity and clean fuel in rural areas using locally available agricultural and animal waste.

Example:
Community biogas plants established under the GOBARdhan Scheme supply energy for rural households and agricultural operations.

Improving Soil Fertility

The digestate left after biogas production is converted into nutrient-rich organic manure, reducing dependence on chemical fertilizers.

Example:
Farmers use biogas slurry to improve soil quality and enhance sustainable farming practices.

Better Waste Management

Biogas technology converts agricultural residues, municipal waste, and livestock waste into valuable energy, reducing pollution and open waste dumping.

Major Challenges

Feedstock Collection Constraints

Collecting crop residues, animal waste, and organic biomass from scattered rural locations increases transportation costs and reduces plant efficiency.

Example:
Many CBG projects struggle due to the absence of organized biomass collection systems.

Competition with Food Crops

Growing demand for crops like maize for biofuel production may encourage monoculture farming and reduce cultivation of food crops.

Example:
Expansion of maize cultivation has affected the production of pulses and oilseeds in several regions.

High Capital Investment

Setting up modern purification systems, compressors, storage facilities, and quality monitoring infrastructure requires substantial financial investment.

Example:
Small and medium enterprises often face difficulties obtaining affordable institutional finance.

Inadequate Pipeline Connectivity

Several biogas plants are located far from existing gas pipeline networks, increasing transportation costs and limiting market access.

Example:
Many producers transport CBG in cylinders because direct pipeline connectivity is unavailable.

Technology and Skill Gaps

Operation and maintenance of advanced biogas purification technologies require skilled manpower and continuous technical support.

Government Initiatives

GOBARdhan Scheme

Promotes conversion of biodegradable waste into biogas and organic fertilizers while improving sanitation and rural income.

SATAT Initiative

The Sustainable Alternative Towards Affordable Transportation (SATAT) initiative encourages entrepreneurs to establish CBG plants and supply gas to Oil Marketing Companies (OMCs).

National Bioenergy Programme

Supports the establishment of waste-to-energy projects and promotes renewable energy production across the country.

Way Forward

Focus on Waste-Based Feedstock

Greater emphasis should be placed on using cattle dung, agricultural residues, municipal organic waste, and food waste instead of food crops for biogas production.

Expand Policy Incentives

Long-term pricing support, purchase guarantees, tax benefits, and simplified approval processes can encourage private investment.

Improve Financial Support

Provide low-interest loans, viability gap funding, accelerated depreciation benefits, and tax incentives to attract large-scale investment.

Strengthen Infrastructure

Fast-track the implementation of the ₹1,558 crore infrastructure package for biomass collection systems, modern purification facilities, and pipeline connectivity.

Promote Research and Innovation

Investment in advanced biogas technologies, efficient digesters, and smart waste collection systems can improve productivity and reduce production costs.

Conclusion

Biogas has emerged as a strategic pillar of India’s clean energy transition by strengthening energy security, reducing fossil fuel imports, promoting sustainable agriculture, and improving waste management. Government initiatives such as GOBARdhan and SATAT have created a strong policy foundation, but achieving large-scale success requires faster infrastructure development, improved biomass supply chains, greater private investment, and supportive regulatory frameworks. With sustained policy support, biogas can play a significant role in building an energy-secure, environmentally sustainable, and self-reliant India.

Source : The Hindu