Fresh Questions, Practical Answers: PVsyst Q&A Series #4

The PVsyst version used for the following Q&A is version 6.66, and other versions can be referenced for guidance. 1. How to interpret the shadow animation trajectory on the PVsyst 3D simulation interface? How to simulate at a specific solar hour? [Teacher Chen's answer]: Currently, the simulation of 3D shadow animation in PVsyst versions 6.66 or 6.67 differs from previous versions, as there is no option to simulate according to "Solar time" or "Legal time". In the current version, the default setting is to simulate according to "Legal Time", which, in China, corresponds to Beijing time. As shown in Figure 1, a rectangular obstacle is placed about 1 meter away from the center of the front row of photovoltaic arrays. According to previous versions, if simulated according to solar time, the shadow curve would be symmetrical. However, it is not symmetrical under solar time. ▲Figure 1 According to the "Photovoltaic…