The 15-step CBG project roadmap
- Project concept & company/SPV setupPromoters, structure, initial feasibility
- Land finalisation & applicable CLULocation near feedstock and road access
- Detailed Project Report (DPR)Technical and financial blueprint. DPR guide
- Feedstock assessment & supply planningLab tests, radius, contracts, storage
- GOBARdhan unified registrationRequired to avail benefits
- CBG offtake / SATAT-OMC processLOI or offtake agreement where applicable
- Pollution control & statutory approvalsCTE / CTO from the State PCB
- PESO, fire, electrical permissionsCompressed gas storage and safety
- Bank financing & financial closureTerm loan, equity, credit guarantee
- Applicable MNRE / BioURJA CFA processAs per guidelines in force
- Engineering, procurement & constructionTurnkey EPC
- Digester + purification + compressionCore process systems
- Feedstock pretreatment & handlingShredding, shearing, feeding
- Commissioning & performance testingBiological start-up and rated output
- Documentation for CFA / incentive claimPerformance and compliance records
Agri-residue CBG projects need special attention
For projects based on paddy straw, Napier grass, sugarcane trash and other crop residues, feedstock preparation decides plant performance:
- Bale handling
- Shredding
- Size reduction
- Shearing / pretreatment
- Digestion
- Purification
- Compression
- CBG
Biomass aggregation machinery support may also be relevant for eligible projects, subject to the prevailing government guidelines and application window. See paddy straw CBG plants and Napier grass CBG plants.
Mistakes first-time CBG developers make
- Buying equipment before testing feedstock. Gas yield varies enormously between feedstocks and even between seasons.
- Underestimating storage for seasonal residues such as paddy straw and press mud.
- Treating digestate as waste instead of a FOM/LFOM revenue stream.
- Assuming registration means subsidy. Plan eligibility, timelines and documentation from day one.
- Choosing EPC on lowest price alone, without checking pretreatment, process guarantees and O&M support.
One partner from Pre-CBG to Post-CBG
Biovardhan supports the full lifecycle: feedstock and pretreatment, process engineering, EPC and installation, digestion and gas systems, purification and compression integration, digestate-to-biofertilizer, documentation and coordination for approvals and incentives, and commissioning, operations and O&M support.
Waste is not a liability when the right technology, engineering and project execution come together. Talk to us about your project.
Frequently asked questions
Typically: company/SPV incorporation, land use conversion (CLU) where applicable, consent to establish and operate from the State Pollution Control Board, PESO approvals for compressed gas storage and dispensing, fire NOC, electrical approvals, and GOBARdhan unified registration to avail central benefits. Requirements vary by state and project configuration.
Land depends on capacity and feedstock. Agri-residue plants need significantly more land for bale storage than dung-based plants. Land for digesters, gas handling, digestate processing, roads and safety distances must also be planned. We size land requirements in the DPR.
It depends on the feedstock's dry matter and gas yield. Dung-based plants need many times more tonnes per day than straw or Napier-based plants for the same CBG output. Feedstock lab analysis is the first step in sizing a plant.
CBG can be sold to oil marketing companies, city gas distribution companies and industrial users under offtake agreements. The GOBARdhan unified scheme adds an assured offtake mechanism for eligible plants.
The timeline depends on approvals, land readiness, financial closure, plant capacity and feedstock. After construction, biological start-up and stabilisation of the digesters also takes time before the plant reaches rated output. A realistic schedule is part of every DPR.