Fresh Questions, Practical Answers: PVsyst Q&A Series #10

1. How can I obtain the yield of P65 in the Report? [Teacher Chen]: In probability theory, P95 and P50 are commonly used terms, meaning there is a 95% or 50% reliability. For yield, reaching this value has a 95% or 50% probability. Ordered by the value, generally P95 < P50. That is to say, P95 is easier to achieve than P50. On the initial setting interface of the PVsyst grid-connected system project, we can find the "Miscellaneous tools" button shown in Figure 1. After opening, select "P50-P90 estimation". By default, PVsyst selects P50, P90, and P95 scenarios. As shown in Figure 2. If there is no measured value for the parameters on the left, default values can be used. Among them, the most influential is the irradiation data. According to the research results of PVsyst, the uncertainty of irradiation data can refer to Figure 3, which shows the relationship…