Simulation Design and Benefit Analysis of Grid-Connected Photovoltaic System

With the development of science and technology, the demand for energy conservation and environmental protection is rising. Grid-connected photovoltaic system industry is developing rapidly in this situation. Taken the typical villa in ChangChun as an example, based on the geographical feature of Jilin province, we design a set of complete grid-connected photovoltaic system power generation system. It contains the configuration of equipment, capacity design, series-parallel design of modules and the design of grid electrical system. In addition, through aiding design by the professional software for photovoltaic system (PVsyst), we calculate the power generation, and we analyze the economic and environmental benefits of this system in 25 years. It will be beneficial to deploy photovoltaic system in the field of building energy efficiency.