Small Biogas Plant (2-20 m³)

Affordable Clean Energy for Homes & Small Farms

Perfect Biogas Small Capacity Plants

Our small biogas plants are designed for individual households, small dairy farms, hostels, and rural communities. With capacities ranging from 2 m³ to 20 m³ per day, these compact systems convert daily kitchen waste and cattle dung into cooking gas, eliminating LPG cylinder dependency while producing nutrient-rich organic fertilizer.

Perfect Biogas has installed over 1000 small-scale biogas plants across rural and semi-urban India since 1998, bringing clean cooking fuel to families and reducing deforestation caused by firewood collection.

Why Choose Small Biogas Plants?

Small biogas systems offer energy independence at minimal investment. They're perfect for families keeping 2-10 cattle or generating 20-50 kg of kitchen waste daily.

Small Plant Sizes & Capacities

Plant Size Daily Input Gas Production Cooking Hours Family Size
2 m³ 10-15 Kg 2 m³/day 2-3 hours 3-4 members
5 m³ 20-30 Kg 5 m³/day 4-5 hours 5-7 members
10 m³ 40-50 Kg 10 m³/day 8-10 hours Joint family/hostel
15 m³ 60-80 Kg 15 m³/day 12-15 hours Small dairy/hostel
20 m³ 80-100 Kg 20 m³/day 15-18 hours 10-15 cattle farm

Ideal Users

1. Rural Families with Cattle

Families keeping 2-10 cows or buffalo produce 20-100 Kg dung daily. A small biogas plant converts this waste into cooking gas, eliminating firewood collection and LPG costs while improving kitchen hygiene.

2. Urban Homes with Kitchen Waste

Apartments and bungalows generating 5-15 Kg daily kitchen waste can install compact 2-5 m³ plants. Perfect for eco-conscious families wanting to reduce waste sent to landfills.

3. Small Dairy Farms

Dairies with 5-15 animals benefit from 10-20 m³ plants. Generate cooking gas for dairy workers' quarters plus premium organic fertilizer for fodder cultivation.

4. Schools & Hostels

Residential institutions with 50-100 students generate substantial food waste. A 15-20 m³ plant provides cooking gas for mess kitchens while teaching students about sustainable energy.

5. Temples & Community Kitchens

Religious institutions serving daily meals can convert kitchen waste into cooking fuel, demonstrating environmental stewardship while reducing operating costs.

Plant Design & Construction

Perfect Biogas small plants feature two proven designs:

Fixed Dome Design

Floating Drum Design

Plant Components

What Can You Feed?

Small biogas plants accept various organic materials:

Do NOT feed: Plastics, metal, glass, bones, excessive oil/grease

Daily Operation (Simple 3 Steps)

  1. Morning: Mix 1 part dung/waste with 1 part water, pour into inlet
  2. Throughout Day: Use biogas for cooking normally
  3. Weekly: Remove slurry from overflow tank (use as fertilizer)

Time Required: 10-15 minutes daily (feeding & basic checks)

Economics & Savings

Example: 5 m³ Family Biogas Plant

Government Subsidies

Small biogas plants qualify for:

Perfect Biogas assists with subsidy applications and documentation.

Installation Process

  1. Day 1: Site visit, waste assessment, design finalization
  2. Days 2-3: Excavation and foundation
  3. Days 4-6: Digester construction (brickwork/tank installation)
  4. Day 7: Plumbing, gas line, stove installation
  5. Days 8-9: Curing, water testing, leak checks
  6. Day 10: First feeding, owner training
  7. Day 25-30: Gas production begins (fermentation period)

Maintenance Tips

Common Questions

Q: How much space is needed?
A: 2m³ plant needs 10 sq.m, 5m³ needs 20 sq.m, 10m³ needs 35 sq.m

Q: Does it work in winter?
A: Yes, but gas production reduces 20-30% below 15°C. Insulation or heating recommended for cold regions.

Q: What if I travel for 10-15 days?
A: No feeding needed. Plant remains dormant, resumes when feeding restarts.

Q: Can I use it for lighting?
A: Yes, with biogas lamps or small generators (5m³+ plants)

Why Perfect Biogas?

Get Free Site Survey

Our biogas engineers will visit your location, assess waste availability, and recommend the optimal plant size at no cost.

Contact us today:

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