Considering the unavoidable replacement of fossil fuels because of its near scarcity, the mobility will turn to 100% electric in the next decades, where the most important is to enlarge the renewable energies to supply the electric vehicles. This paper, presents the design of the technological solution which begins by characterizing the demand in terms of amount of energy and charging infrastructure and then, based on the available areas and the support structures, this work will propose solutions. Once the commercial components of each design have been defined, the feasible alternatives must be evaluated from an economic point of view. Based on three supposed financing scenarios -that this Project convers- indicators are calculated to compare the proposed designs. It is observed that, the higher the installed capacity, the faster the return on investment. The least favourable financing scenario turns out to be the one that users employ only their own resources. On the other hand, choosing for state subsidies is notably the best option, being only one of the four designs, which presents positive net present value and an internal rate of return greater than the discount rate.