There are 30,000 large farms in Pakistan employing more than 50 cattle and 18000 farms rearing 200 cattle per farm on the average. Large Farms and cattle owners can produce electricity for others and sell it to the grid. A farm having 1000 cattle can generate 0.5 MW of electricity and a farm of 2000 cattle can generate 1 MW. One can reasonably assume that 1000 such farms can be marshaled to provide atleast 1000 MW, against a total potential of 3800 MW.
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Table: Biogas Potential in Pakistan
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No of Livestock=56.9 Million
Live stock Biomass generation=1 Mn Tons/day
Number of Large Dairy Farms=30,000 (avg 200 Cattles)
MSW =55000 tons/day
Crop residue= 225000 tons/day
Annual Biogas (Bio-methane) potential=1.6 TCF/yr
Pakistan Ngas Production=1.4 TCF/yr
Existing Short Fall= 1 TCF/yr
CNG consumption=0.164 TCF/yr
LNG projects =0.146 TCF/yr (25 Billion USD imports)
OR Electricity Potential from Biogas =3800 MW
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Source: Author’s Estimates
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DAIRY FARM HERD SIZE AND BIOGAS & ELECTRICITY OUTPUT
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No of animals Gas out put Tot.Gas Tot.Electr Power Profit
number CM/animal/d Mbtu/yr kWh/yr KW Rs/yr
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5000 2.4 147000 14700000 2940 14700000
3000 2.4 88200 8820000 1764 8820000
2000 2.4 58800 5880000 1176 5880000
1000 2.4 29400 2940000 588 2940000
500 2.4 14700 1470000 294 1470000
200 2.4 5880 588000 117.6 588000
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Source: http://www.brecorder.com
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