The paper describes the advantages and constrains of integrating of a fault location functionality to the system that is used by a dispatch center to operate a Smart Grid in the electricity distribution sector. An electricity distribution grid contains a large number of power lines and equipments distributed over a wide area that might be the size of an entire country (see Figure 1). A great number of these equipment are power protection equipment capable of detecting power faults as they occur, protecting consumers and the grid itself from the consequences of these faults. When a fault is detected in a remote location, such as a power line, it is necessary to dispatch repair teams to the field to locate the place where the fault occurred. If it occurs on rough ground (i.e. forests or mountains) or during bad weather (i.e. storms or hurricanes), the most common situation, this job gets significantly harder. We are able to detect a fault occurrence but we are not able to easily locate where it physically occurred. In a smart grid the electricity distribution grid is managed through a communications network that enables remote monitoring and control of power equipments through the use of a grid operating system (SCADA). EDP Distribuição (EDP Group), Portugal controls more than 400 primary substations, 1100 secondary substations (out of 60000) and 3000 circuit breakers in overhead medium voltage (MV) lines. All equipments are connected to a core infrastructure where the SCADA system is hosted and from where it is able to send and receive information from remotely distributed equipments, including fault detection data. The solution implement a fault location functionality for EDP Distribuição's SCADA system that uses the collected data in order to calculate the possible location of a power fault and to calculate also the affected MV and high voltage (HV) branches of the electricity distribution grid. As soon as a fault is reported to the SCADA it is displayed in real time on the substation one-line diagram. From here a mouse click on the fault symbol will open the schematic or geographical diagram showing the fault location. With this solution, the dispatchers are able to position repair teams on the field with increased efficiency, decreasing fault repair times and improving the working conditions of SCADA operators and fault repair teams.