Tamil Nadu at a glance
- Main CBG feedstock: Paddy straw, poultry litter, press mud
- Typical plant size: 3–10 TPD
- Central support: GOBARdhan capital assistance up to ₹2 crore per TPD for eligible greenfield plants
- Biovardhan scope: feedstock study, DPR, approvals coordination, turnkey EPC, commissioning & O&M
Why Tamil Nadu is ready for CBG
- Cauvery delta paddy gives large straw volumes
- The Namakkal poultry cluster supplies nitrogen-rich litter for co-digestion
- Sugar mills and banana plantations add further residues
- Chennai, Coimbatore and other cities generate wet waste
Main CBG feedstocks in Tamil Nadu
| Feedstock | What to plan for |
|---|---|
| Paddy straw | Delta districts. Needs baling, storage and pretreatment. |
| Poultry litter | High in nitrogen. Excellent as a co-substrate, but limit the share to avoid ammonia inhibition, and remove grit. |
| Press mud | From sugar mills during the crushing season. |
| Banana residue & wet waste | Banana stems and leaves, plus segregated municipal organic waste. |
How much feedstock do you need? Use the feedstock-to-CBG calculator, or see sizing for a 5 TPD and a 10 TPD plant.
Recommended plant design for Tamil Nadu
Balance the carbon-rich paddy straw with nitrogen-rich poultry litter. The right blend improves the C:N ratio and gas yield, but the litter share must be controlled to avoid ammonia build-up. Grit removal ahead of the digester is essential with litter.
- Feedstock aggregation
- Pretreatment
- CSTR digestion
- Upgrading (IS 16087:2025)
- Compression
- CBG
- FOM / LFOM
Central & state support for CBG in Tamil Nadu
Under the GOBARdhan National Unified Scheme (₹23,731 crore, FY 2026-27 to FY 2035-36), eligible greenfield CBG projects in Tamil Nadu can receive capital assistance of up to ₹2 crore per TPD, along with assured offtake, a pricing framework and support for pipeline connectivity. The CBG blending obligation for CNG and PNG creates steady demand. State-level industrial, renewable-energy or bioenergy policies may offer further incentives. These change with notifications, so we check the current provisions for Tamil Nadu while preparing your DPR.
Districts we serve in Tamil Nadu
Thanjavur, Tiruvarur, Nagapattinam, Namakkal, Salem, Erode, Tiruchirappalli, Villupuram, Cuddalore, Coimbatore, Tiruppur, Madurai, and every other district of Tamil Nadu. Biovardhan is based in Kota, Rajasthan, and executes projects across India, with site visits for feedstock study, design reviews and construction supervision.
Our CBG services in Tamil Nadu
- Feedstock survey & lab analysis
- Site selection & land/CLU support
- DPR & bank documentation
- GOBARdhan registration & offtake coordination
- Pollution control, PESO & fire approvals coordination
- Turnkey EPC, 3 TPD to 20+ TPD
- Biomass pretreatment & twin-screw shearing
- FOM / LFOM plants, commissioning & O&M
Looking at another region? See CBG plants by state.
Frequently asked questions
Yes, as a co-substrate. Poultry litter is nitrogen-rich, so blending it with carbon-rich paddy straw or other residue improves digestion. Too much litter, though, causes ammonia inhibition.
The Cauvery delta for paddy straw, the Namakkal–Salem–Erode belt for poultry litter, sugar-mill districts for press mud, and large cities for wet waste.
Yes. Biovardhan executes CBG projects across India, with site visits for feedstock study, design and supervision.