Biogas vs Bio-CNG: Which is Right for Your Facility?

The choice between biogas and CBG depends on facility type, feedstock volume, and end-use application. Both technologies convert organic waste into renewable energy, but with distinct advantages.

Raw Biogas: Immediate Energy

Raw biogas (55% methane) can be used directly for: - Industrial heating (boilers, furnaces) - Electricity generation via gas engines - Thermal energy for drying processes

Biogas systems are simpler, requiring basic purification and storage. Capital costs are 30-40% lower than CBG plants, making them ideal for smaller facilities (1-3 TPD).

Refined CBG: Premium Fuel

CBG undergoes advanced upgrading to >95% methane purity, enabling: - Vehicle fuel (CNG retrofitted fleets) - Long-distance transport and storage - Industrial applications requiring consistent quality - Grid injection

CBG commands 3-4x higher market value than raw biogas, but requires larger scale (6+ TPD) for economic viability.

Economics Comparison

For a 6 TPD facility: - Raw biogas: ₹14.2 Cr revenue, 18% ROI - CBG plant: ₹14.85 Cr revenue, 25.6% ROI

CBG's higher revenue offsets additional upgrading costs above 5 TPD.

Decision Matrix

Choose raw biogas if: - Feedstock volume is below 3 TPD - On-site energy consumption is high - Capital constraints exist

Choose CBG if: - Feedstock volume exceeds 5 TPD - Access to fleet operators or industrial buyers - Government subsidy available (MNRE scheme) - Long-term fuel supply contracts secured