The technological developments has been focus towards the use of smart grids, as it is know the future of the distribution systems of electric power. In this document, it is presented the elements that are necessary to build an infrastructure of measurement on micro grids by using wireless sensors; the recovery of the information measured from the microgrid requires an infrastructure that fulfill the design requirements and by that, it ensures thus a system that gather low consumption characteristics, security, scalability, large coverage and low cost, for the acquisition and transmission of information in only one concentrating node with the capability to visualize its electrical behavior.