Net2DG (Leveraging Networked Data for the Digital Electricity Grid) is a joint effort by eight European partners to develop a proof-of-concept solution for leveraging measurement data from smart meters and smart inverters in low-voltage (LV) grids. The Net2DG solution correlates these data with information from existing DSO subsystems, in order to enable and develop novel LV grid observability applications for voltage quality, grid operation efficiency, and LV grid outage diagnosis.