Although numerous proposals for electrical and communication topologies for distribution automation had been presented, not all of them are suitable for the use of renewable energy as a source of electricity. Selecting the most appropriate topology requires good knowledge of the particular characteristics and requirements. This paper presents the analysis of the basic characteristics, topologies and the main functions of the distribution network and evaluates the communication architecture suitable for a sustainable energy resources integration. Finally, recommendations for a new architecture are presented as well as for the communication to use.