How India should address the challenge of utilizing biomass energy

The technology for converting cow dung to useful commercial energy has been in use in large dairy farms across the world. The useful energy goes up about three times with modern technology. The technologies for using wood and crop residues as a source of useful energy have also matured. Heating wood by restricting the flow of air converts it into charcoal. Recent developments have created a window of opportunity for a smooth transformation in the use of bio energy in the country.