Executive Summary The aims of this thesis have been: •??The configuration of the lab setup, for local measurements on on-site resources (PV panels and electrolyser); •??The arrangement of the remote connection between labs and creation of a multi-site co-simulation lab layout, for reproducing the measurements in remote; •??The experimental-based modelling of a PV-field, for studies aiming to integrate PtG plants in the electrical grid; •??The experimental-based modelling (static and dynamic) of a PEM electrolyser, again for studies aiming to integrate PtG plants in the electrical grid; •??The application of the lab setup and the models previously built in order to test and validate the correct functioning of the remote connection.