BS PD IEC/TS 62257-2:2015 proposes a methodological approach for the setting up and carryingout of socio-economic studies as part of the framework of decentralized rural electrificationprojects. It is addressed to project teams and in particular to experts in charge of socioeconomicstudies in international projects.The amount of detail gathered and the requisite number of experts needed would depend onthe scale of the proposed project. For large projects involving many households, a detailedstudy would be required, for a project which involves a single or few households, the studycould be truncated.The information coming from such preliminary studies could be used for several purposes,such as more complete economic and financial studies of the electrification project.This technical specification also provides some structures as technical solutions that could berecommended, depending on the qualitative and quantitative energy demands, consistent withthe needs and financial situation of the customers.Then, in relation with each model of the proposed range of systems, electrical architecturesare proposed to technical project managers to assist in designing the systems.Cross References:IEC 60617 DBIEC 62257-9IEC 62257-12