The integration of distributed generation and Smart Grid enabling technologies and concepts to power systems has been widely accepted by the industry and academia as the key to achieve a more reliable, efficient, and secure grid, with an active participation from customers, and environmentally sustainable. However, there is a lack of information about the costs and economic benefits of research and development projects about distributed generation and Smart Grids. This paper proposes a methodology for the technical and economic analysis of the implementation of a distributed generator into a distribution network, combined with an automatic voltage control and a dynamic line rating tool. The methodology is applied to a case study to show the technical impacts and performance of the network, and the economic feasibility of the projects. A better understanding of cost - benefit analyses of such initiatives will foster de deployment of distributed generation and Smart Grid projects.