Kaan Yildirim Posted February 24 Posted February 24 Hello, I need some help. What is the calculation methodology of Pvsyst BVoc value? This info doesn't import from .pan file by Pvsyst. BVoc = Temperature coefficient (Voc) Thanks for help.
André Mermoud Posted February 26 Posted February 26 The Voc value as a function of the temperature is calculated from the one-diode model. See the help “Physical models used > Standard one-diode-model” This temperature coefficient muVoc (usually called Beta in the datasheets) is usually not equal to the value mentioned on the datasheets. If you really want to use the value of the datasheets for your sizing, you can define it explicitly in the PV module’s definition, page “Additional data / Secondary parameters”: And specify this option in the project’s settings, page “Design conditions”:
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