The new energy requirements that will be necessary in the coming years will demand a change in the current paradigm of electricity grids. The need to integrate a higher level of renewable resources to achieve the objectives set by the EU (the famous 20-20-20), flattening the load curve, the imminent arrival of electric vehicles, and the possibility of actively controlling all devices connected to a grid, are some examples of these new challenges. In order to maintain the stability of the distribution network, all medium-voltage lines in the city of Malaga (Spain) have been analyzed and modeled over the past five years, to optimize electric-vehicle charging with the use of available energy during the night valley using pricing signal, control of the electric vehicle charging manager and signals from the Distribution Company, with regard to grid availability (vehicle-charging posts) and available energy. The project has developed new management, control and integration systems for all elements of consumption, production and energy storage over the distribution network. All deployment within the SmartCity Malaga Project of ENDESA includes smartmeters for all customers and new automation and communication systems over the grid connected by a broadband Power Line Communication network. (C) 2013 Elsevier Ltd. All rights reserved.