5 TPD CBG plant at a glance
- Output: 5,000 kg CBG/day · about 1,650 t/year
- Feedstock: 100–140 TPD fresh Napier, or 200–300 TPD cow dung, or 40–55 TPD paddy straw
- Indicative budget: ₹25–40 crore (excl. GST and land) · GOBARdhan assistance up to ₹10 crore
- Who it suits: first CBG project, gaushala clusters, FPOs, sugar mills, Napier contract-farming belts
Feedstock required for a 5 TPD CBG plant
| Feedstock option | Daily feedstock | Annual feedstock (330 days) | Notes |
|---|---|---|---|
| Napier grass (fresh) + a little cattle dung | 100–140 TPD | 33,000–46,200 t | Needs about 175–275 acres of irrigated Napier |
| Cattle dung only | 200–300 TPD | 66,000–99,000 t | Stable digestion; large collection logistics |
| Press mud | 100–150 TPD | 33,000–49,500 t | Seasonal; store for the off-season or co-digest |
| Paddy straw (air-dry bales) | 40–55 TPD | 13,200–18,150 t | Harvested in a few weeks; needs a large bale yard |
Indicative planning ranges. Confirm with lab tests of your feedstock. Try the feedstock-to-CBG calculator.
Key design numbers
| Parameter | 5 TPD CBG plant |
|---|---|
| CBG output | 5,000 kg/day · about 1,650 tonnes/year |
| Raw biogas (55–60% methane) | ≈ 12,000–13,000 Nm³/day |
| Digester working volume (Napier / agri-residue, ≈ 36–40 days retention) | ≈ 10,000 m³ |
| CBG quality | Upgraded to the BIS IS 16087:2025 specification, compressed to ≈ 250 bar |
| Electricity | ≈ 7,000–9,000 kWh/day (≈ 1.4–1.8 kWh per kg CBG) |
| Solid FOM | ≈ 12–20 TPD |
| Liquid fraction (LFOM) | ≈ 80–100 m³/day (part recirculated as process water) |
| Cascade truck loads (≈ 700–800 kg each) | ≈ 7–8 per day |
Indicative economics
| Item | Indicative figure |
|---|---|
| Project budget (full scope, excl. GST, land, working capital) | ≈ ₹25–40 crore (≈ ₹5–8 crore per TPD) |
| GOBARdhan capital assistance (eligible greenfield) | Up to ₹10 crore (₹2 crore per TPD, subject to caps) |
| CBG sales at ₹46/kg* | ≈ ₹7.6 crore per year (1,650 t) |
| FOM Market Development Assistance (₹1,500/t on eligible FOM) | ≈ ₹0.6–1.0 crore per year, plus FOM sale value |
| Biggest operating costs | Feedstock, electricity (≈ 7,000–9,000 kWh/day), manpower, maintenance |
*₹46/kg plus taxes is the SATAT minimum procurement price notified by oil marketing companies for 2024–2029. GOBARdhan (2026) introduces its own pricing framework, so check the current notification. All figures are planning estimates; your DPR should model them with your feedstock cost and plant uptime.
What Biovardhan delivers for a 5 TPD plant
- Feedstock study & DPR
- GOBARdhan registration & offtake coordination
- Bale / grass handling, shredding & twin-screw shearing
- CSTR digester with in-house agitators
- AMOCO membrane gas holder
- H₂S removal, CO₂ upgrading & drying
- Compression, cascades & PESO licensing support
- PLC/SCADA, safety & flare
- FOM / LFOM processing
- Commissioning, one-year ramp-up & O&M
Planning bigger? See the 10 TPD CBG plant, or compare all CBG plant costs by capacity.
Frequently asked questions
An indicative full-scope budget for a 5 TPD Napier or agri-residue CBG plant is about ₹25–40 crore, excluding GST, land and working capital. Eligible greenfield projects can receive GOBARdhan capital assistance of up to ₹2 crore per TPD (up to ₹10 crore for 5 TPD), subject to scheme guidelines.
About 100–140 tonnes of fresh Napier grass per day, which needs roughly 175–275 acres of irrigated cultivation at 180–200 tonnes per acre per year.
About 200–300 tonnes of fresh cattle dung per day if dung is the only feedstock. Most 5 TPD plants therefore co-digest dung with Napier grass, press mud or crop residue.
About 1,650 tonnes of CBG a year at 330 operating days, plus roughly 4,000–6,600 tonnes of solid FOM.
The plant itself typically needs several acres for digesters, gas handling, feedstock storage, digestate processing, roads and safety distances. Agri-residue plants need more, for bale storage. Napier-based projects also need roughly 175–275 acres of cultivation, which can be contract farmed. The DPR fixes the exact layout.
Typically around 10–15 months from a techno-commercially clear order to commissioning, after land, DPR and key approvals are in place. Biological start-up to rated output takes additional weeks.