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Commonly used sources of energy for cooking are firewood, crop residue, cow dung, kerosene, electricity, liquefied petroleum gas (LPG), biogas etc.
The cooking energy demand in rural areas of developing coun- tries is largely met with bio-fuels such as fuel wood, charcoal, agricultural residues and dung cakes, whereas LPG or electricity is predominantly used in urban areas.
Ac- cording to Indian government survey-2001, 52.5% of people use firewood for cooking and LPG is used by 17.5% of the population as shown in table 1.1.
Cooking source People Percentage 1 Firewood 100,842,651 52.53 2 LPG 33,596,798 17.5 3 Crop residue 19,254,851 10.03 4 Cow dung cake 18,758,885 9.77 5 Kerosene 12,528,916 6.53 6 Coal, lignite, charcoal 3,932,730 2.05 7 Biogas 849,098 0.44 8 Electricity 338,054 0.18 9 Other sources 1,231,727 0.64
LPG and electricity are the most preferred source of energy for cooking in suburban and urban areas. 17.5% of Indian household or 33.6 million use LPG as cooking fuel. 76.64% of such households are from urban India making up 48% of urban Indian house- holds as compared to a usage of 5.7% only in rural Indian households.
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