1. Bio-CNG & Microgrids
for Rural
Electrification
rajunair@gogas.in
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2. Agenda
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text here ] text here ]
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3. Current Situation
India
• 30 million tonnes of
solid waste
• 4,400 million cubic
meters of liquid waste
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4. Potential in India
•Solid Waste: 1457 MW
•Liquid Waste: 226 MW
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5. Potential Statewise
Wet waste from urban area, Banana Stem from farms,
Vegetable Market area in Jalgaon (No :1 State Maharahtra)
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6. Technology
Urban Waste
Solid Liquid
Thermal Biological
Incineration Land filling Composting Biomethanation
Gasification Biogas
Pyrolysis Power
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7. Merits of Biomethanation
• Preservation of environment
• Residue used as soil conditioner
• Energy generation
• Carbon Credits
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8. Technical feasibility of
Biomethanation Plant
Parameters related with
Technical
Feasibility
Need for obtaining Ensuring process kinetics Waste at processing
waste with desired site
composition
• Removal of non
• Annual seasonal • Digester Temperature & pH biodegradables
variation in waste
composition. • Carbon to Nitrogen ratio • Removal of
binders like soil
• Identification of • Maintenance of particles, stones,
points for collection COD/BOD values of the etc.
of waste. reactor feed
• Adjustment of
• Source specific water content in
collection of waste. the feed to the
reactor.
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9. Feedstock
75%
3 % of Global banana production
16 % of India’s banana production
66 % farmers involved in banana
farming
25%
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10. Advantage of banana stem
•Bananas give very high biomass
production
•Easily available
•Available in all seasons
•Stems and leaves can be separated for
more value addition
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11. Commercial viability
• Input 20 tons
– Dry Matter 15 %
– Output Gas 7,200 m3
– Output Electricity 1.2 MW
• 96% pure methane
• Production cost
– Gas Rs.8.00 per kg Sell Rs.50 per kg
– 1 kg gas = 4 Units electricity
– 1 Unit = Rs.6.83 (Source: Solapur
power) 11

12. Return on Investment
Sell only gas
ROI – 4 to 5 years
Electricity generation
ROI – 10 to 11 years
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13. Target Customers
– Khandesh Mall
– Auto Rickshaws running on petrol
– Power co- generation at Bhusawal
power plant
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14. Case for Micro grids
32% efficient 92 % efficient
Electricity Bio CNG
Extraction Extraction
processing processing
& Transport & Transport
95 %
No
efficient Conversion
Conversion
34% 93 %
Distribution efficient Distribution
efficient
Delivered to
Delivered to Customer
32% 92 %
Customer
efficient efficient
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15. Conclusion
•Technology is optimum at 36 C° suitable in a (sub)
tropical climate like India
• Biogas plant needs minimum maintenance costs and
can produce gas for at least 20 years without major
problems and re-investments
•The slurry / residue is a clean organic fertilizer that
potentially increases agricultural productivity
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16. Appendix
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