Development of improvements upon the Medium Voltage Distribution Network Analysis Tool, ARREMETE. The goal for this project is to add advancements and update the tool’s capabilities. Some of the improvements considered include a new GIS system that allows for geographical view of the network and its elements, which simplifies the tool usage and subsequent data analysis. Moreover, a new algorithm with the purpose of identifying abnormal measurements has been incorporated; and support for new measurements during power estimation and the hability to smultaneously analyze several networks have been implemented, too.