The Nepal Biogas Support Program
is a project helps poor Nepalese farmers to build household size biogas plants that provide fuel for cooking and lighting. Biogas is a flammable gas that is a byproduct of anaerobic decay of organic matter. Biogas digersters
are typically fueled with cow manure, but can also be connected to latrines. Two additional advantages are that fermentation kills germs, so that biogas plants can help to improve sanitation and that the fermented slurry can be used as fertilizer, thus improving food security for beneficiary households.