Communities with a high density of households would be ideal candidates for mini-grids, while for places that have sparsely settled households standalone systems, such as solar home systems, would be appropriate. Figure 22 presents a decision-making process for the selection of technology for access to electricity. A biogas digester offers a range of benefits, such as creating a better local environment with improved manure management, as free bio-slurry would replace the need for chemical fertilizers.