The study scopes to optimize the characteristics of shading devices (SDs) with integrated photovoltaic panels (PVs) that are designed for residential building facades. The SDs are located on the external part of a window facing south, in a distance from the external wall, in order that a semi - outdoor space is created. The research deals with the integration of solar technologies in buildings. Focusing on the optimization of the relationship between the energy technologies and the architectural design. Concerning the design process we took into consideration the definition of user's visual comfort and the optimization of the design process of the final product. This experiment focuses on the integration of flexible shadings in order to use the external space as a consecution of the internal space. Methodologically the parameters of the research are defined and the decision on the type of the experiment is taken according to the summer at three different weather conditions in Crete. So, the physical model type of experiment was preferred to the computer simulation model. The results are being categorized and the process is being evaluated according to the above mentioned parameters. The research seeks to highlight how experimental shading devices with integrated PVs can achieve better view for the users while performing as energy production and reduction machines. Finally as a result the daylight analysis value is compared with the human's comfort view to outside and the energy needed for the performance of the examined unit during the day. Our main goal is to optimize the comfort in combination with the energy generated and the best suited space for the everyday activities.