Keywords: crop residue, renewable energy, biogas, biocoal, ethanol, India, energy sources, recycling options, sustainable energy, fertiliser, sustainability
Potential of crop residue in India as a source of energy
Here is given an estimate of crop residue production and different recycling options as a source of renewable energy. India produces 388 Tg crop residues but only 182 Tg equivalent to 2818 PJ is usable. Recycling as manure can replace 15% of 595 PJ national fertiliser energy. Recycling in digester can produce 20.32 billion m? biogas. It can be converted into 182 Tg of biocoal generating 156?258.3 billion unit (kWh) electricity. It can lead to 16 billion dm? ethanol productions. Having less environmental consequences, different recycling options can make the crop residue an environmentally sound sustainable energy system.