Agthala, Gujarat Biogas Plant
Company: National Dairy Development Board (NDDB)
Country: India
The CBG Plant at Agthala, Gujarat, India is a pioneering example of a dairy-linked circular bioenergy system that integrates livestock waste management, renewable transport fuel production, and soil health restoration. Developed through a strategic partnership between Suzuki Motor Corporation, National Dairy Development Board (NDDB), and Banas Dairy, the plant demonstrates how anaerobic digestion can be embedded within existing rural cooperative systems to deliver measurable environmental, economic and social benefits.
The facility processes up to 100 tonnes of cattle dung per day, collected directly from dairy farmers’ doorsteps using logistics aligned with milk procurement routes. Through controlled anaerobic digestion, the plant captures methane that would otherwise be released into the atmosphere and upgrades the resulting biogas into automotive-grade Compressed Biogas (CBG), supporting cleaner mobility and reducing reliance on fossil fuels. The plant produces approximately 1.5–2.0 tonnes of CBG per day, meeting quality and safety standards.
A defining feature of the project is the complete valorisation of digestate. Using solid–liquid separation and downstream processing, the plant converts slurry into Phosphate Rich Organic Manure (PROM), Fermented Organic Manure (FOM) and liquid biofertilisers, which are distributed locally through the cooperative network. This closes nutrient loops, improves soil health and reduces dependence on chemical fertilisers.
Operational since June 2025, the Agthala CBG Plant demonstrates a scalable and replicable model that strengthens rural incomes, mitigates greenhouse gas emissions, improves village sanitation and embeds circular economy principles within the dairy and agricultural landscape.
