LAP is a software tool for technical and economical evaluation of Low Voltage electrification projects. After calculating the electrical behavior of the LV network (currents, voltages, losses, etc.), LAP generates the bill of materials of necessary investments. Considering on the one hand the costs of such investments and for network operation, and on the other hand the revenues from the consumers, LAP presents an optimized economic balance of the project. Results obtained for several sites (villages) can be aggregated to obtain an overall balance at regional level.