Context
- India is on track to meet its statutory target of blending 3% compressed biogas (CBG) with Compressed Natural Gas (CNG) and domestic Piped Natural Gas (PNG) for FY27. Fueled by a robust rollout of processing infrastructure under the GOBARdhan scheme, India’s baseline commercial blending rate has effectively doubled to reach approximately 2% at present.
India’s Gas Sector Baseline
1. Consumption and Blending Milestones
- Daily Gas Profile: India’s baseline structural consumption of natural gas for the vehicle transport sector (CNG) and household distribution networks (PNG) combined is 34–35 million metric standard cubic metre per day (MMSCMD).
- Commercial Payout: Recent performance parameters show commercial CBG supply hitting 0.66 MMSCMD in April and 0.63 MMSCMD in May, satisfying the current ~2% blending baseline.
2. Infrastructural Pipeline Under GOBARdhan
- Active Execution: Data fetched from the Ministry of Petroleum and Natural Gas’s dedicated GOBARdhan portal notes that construction of 324 CBG/bio-CNG plants is actively underway.
- Future Capacity Expansion: Preliminary pre-development work and administrative approvals have been mapped for an additional 1,261 upcoming facilities.
3. Macro-Strategic Implications for India
- Energy Security Buffer: Scaling up domestic alternative bio-fuels isolates the domestic market from erratic geopolitical shifts and external energy supply constraints.
- Import Substitution: Mandated infrastructure-level integration helps curb deep structural dependencies on imported Liquefied Natural Gas (LNG), helping save valuable foreign exchange reserves.
Essential Climate Modulators & Project Concepts
- Compressed Biogas (CBG): An energy-rich fuel produced via the anaerobic decomposition of organic materials (like cattle dung, agricultural residue, and municipal solid waste). It undergoes advanced purification to remove impurities (carbon dioxide and hydrogen sulfide), resulting in a refined gas containing over 90% methane, which is chemically identical to conventional natural gas.
- GOBARdhan (Galvanizing Organic Bio-Agro Resources Dhan): An inter-ministerial umbrella initiative focused on converting biodegradable waste into wealth. It aims to support the rural economy, promote clean energy, and drive circular economic parameters toward achieving India’s net-zero emission targets.
- SATAT (Sustainable Alternative Towards Affordable Transportation): Launched by the Ministry of Petroleum and Natural Gas to promote the establishment of commercial CBG production plants by private entrepreneurs, ensuring efficient production and integration into existing city gas distribution networks.
- Compulsory Blending Obligation (CBO) Trajectory: Announced by the National Biofuels Coordination Committee (NBCC), the blending framework transitions from voluntary stages into a strictly mandatory regime with specified legal targets:
- FY26: 1% of total CNG and domestic PNG consumption.
- FY27: 3% mandatory target.
- FY28: 4% mandatory target.
- FY29 onwards: 5% mandatory target floor.
With respect to the Compressed Biogas (CBG) Blending Obligations in India, consider the following statements:
I. The Compulsory Blending Obligation (CBO) mandates a uniform 3% blending target across both total CNG and domestic PNG consumption for FY27.
II. Purified Compressed Biogas (CBG) contains less than 50% methane, making it structurally incompatible with conventional gas networks and requiring entirely separate pipelines.
Which of the statements given above is/are correct?
(a) I only
(b) II only
(c) Both I and II
(d) Neither I nor II
Answer: A
Explanation:
• Statement I is correct: As per the mandatory roadmap set by the central government, the Compulsory Blending Obligation is targeted at 1% for FY26, 3% for FY27, and rises progressively to 5% by FY29 across municipal CNG and domestic PNG streams.
• Statement II is incorrect: Purified and upgraded Compressed Biogas (CBG) contains over 90% methane. Because its composition, calorific value, and clean-burning characteristics are practically identical to conventional fossil-based natural gas, it can be seamlessly blended into existing commercial gas supply lines without creating distinct transport networks.