13/10/2026
Delhi is turning cattle dung into an opportunity for clean energy. But how can we get more gas from the same feedstock?
Delhi plans to pay ₹1 per kg of cattle dung supplied to CBG plants. Earlier this year, the Municipal Corporation of Delhi (MCD) and NDDB Dairy Services signed an MoU to process dung from dairies and gaushalas at plants in Nangli, Ghoga-Goyla and Ghazipur, helping prevent it from polluting the Yamuna.
This is an important step towards cleaner cities and renewable energy. But building a plant is only the beginning. The real challenge is getting the maximum gas output from the feedstock available.
Cow dung provides a reliable daily base for biogas production. However, adding a preserved green feedstock like Napier grass can help improve the equation.
In lab tests combining cow dung with Napier, ensiled Napier produced about 30% more methane than fresh-cut Napier, averaged across six test mixes.
The takeaway? The same crop can deliver different results depending on how it is preserved.
A practical approach for CBG plants:
Cow dung for a consistent daily feedstock base.
Ensiled Napier grass to supplement the feedstock and improve methane yield.
Better feedstock planning to help plants achieve their designed output without depending solely on collecting more dung.
Building a CBG plant is the first milestone. Keeping it productive is what creates real value.
As Delhi moves forward with dung-based CBG, integrating preserved green biomass could be an important step towards getting more gas from the resources already available.
At Halotech Industries, we believe feedstock management and preservation are essential parts of building a reliable Bio-CNG ecosystem.
