The goal of this deliverable is to study the operational limits of the electrical distribution feeder of Onnens (medium voltage) and Rolle (low voltage) that are expected to be used as demonstration sites for the Phase II of the SCCER-FURIES. Both networks belong to the assets of Romande Energie and are located in the south-west part of Switzerland in the Vaud canton. We first collect and analyze the load and distributed generation1 time series in both networks. This task is accomplished by integrating coarse data provided by Romande Energie (RE) with refined data available from the photovoltaic installations of the EPFL-DESL. Concerning the methodology, the operational limits of both networks are assessed using a Probabilistic Load Flow developed at the DESL and based on standard methods existing in the literature. As described in the report, the Onnens grid may face nodal over-voltage and lines congestions due to the massive injections coming from a single multi-MW PV plant located at the end of the Onnens medium voltage feeder. On the other hand, the low voltage grids in Rolle are robust against the planned PV installations, i.e., the grids will not suffer any security constraint violations. In what follows, we first briefly describe the methodology adopted to carry-out the study and then the analysis of the steady-state behavior of both grids.