Prediction of Rooftop Photovoltaic Power Plant Production Using the energija System Advisor Model (SAM) Software with Results Validation

The paper describes the possibility of using the System Advisor Model (SAM) software tool in planning a photovoltaic power plant on the rooftop of an industrial building in Čačak. The configuration of the power plant is largely determined by the configuration of the rooftop and its static conditions, especially when it comes to the orientation of the photovoltaic modules and the need for additional substructure. Therefore, simulations of the power plant operation were carried out under conditions optimal for the production of electric power and conditions optimal from the point of view of the need for additional elements that ensure the mechanical safety of the structure. The reduction of the produced electricity concerning the optimal orientation of the module was analysed. The results were verified by data on the monthly electricity production available after the power plant commissioning.