Fresh Questions, Practical Answers: PVsyst Q&A Series #17

1. After changing the terrain albedo, why doesn't the result of batch simulation change? Answer: When users select "Monthly Data" when setting the terrain reflectivity, as shown in the figure, changing the terrain reflectivity during batch simulation may result in no change in the production data, provided that other variables remain unchanged. 2. In the same region, will different elevations cause significant radiation differences? Answer: The shorter the path of solar radiation through the atmosphere (the higher the elevation), the less it is weakened by the atmosphere, and the higher the radiation that reaches the terrain will be. Therefore, when importing meteorology data, it is necessary to accurately fill in the altitude of the project site. As shown in the figure, there are certain differences in horizontal plane radiation and scattered radiation between Beijing at an altitude of 200m and 55m. 3. What does the height above ground of bifacial…