Explores planning for biogas plants as a pre-requisite to develop a functional plant balancing energy production and consumption Gives out detailed provision of the types of substances that are and can be used for biogas production covering animal wastes, municipal and industrial wastes Provides knowledge for aspiring biogas producers as well as decision makers, specifically in the context of Nigeria Covers use of digestrate for anaerobic digestion as a waste treatment method and on the input (feedstock) to the biogas plant Compares carbon dioxide emissions from biogas plants with fossil fuel plants